Source Graphite Research Articles

Graphene oxide with different oxygen content produced from natural and synthetic graphite sources for methylene blue sorption

Graphene oxide (GO) is of great interest due to its unique structure and properties and potential applications, including water purification. In this work, we report the synthesis of GO samples with different oxidation degree from two different sources of graphite using Hummers method. Natural flake graphite with a high degree of crystallinity, and synthetic fine powder graphite were used. All produced materials were characterized by CHNS analysis, X-Ray Diffractive analysis (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Raman spectroscopy, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). It was shown that the oxidation process for natural and synthetic graphite sources proceeds in different ways. The factors, affecting for the structure and properties of GO are the degree of crystallinity and the lateral size of the graphite flakes. The sorption activity of underoxidized, normally oxidized and overoxidized GO was compared toward the methylene blue (MB) dye in aqueous solution. The most efficient sorption was registered for GO produced from synthetic graphite with the use of 2.0 and 4.5 wt. eq. KMnO4. The sorbents removed 94 % and 100 % of MB from the solution, respectively, in approximately 10 min. Our results reveal that the structure and sorption properties of GO can be tuned by varying the oxidation degree as well as the graphite source, which may open the way to new developments in the GO-based materials applications.

Correction to: Revealing the effect of graphite source on the properties of synthesized graphene oxide

Correction to: Revealing the effect of graphite source on the properties of synthesized graphene oxide

Is the Central Cordillera of Colombia a potential source of graphite?: Implications for the energy transition in Colombia

Is the Central Cordillera of Colombia a potential source of graphite?: Implications for the energy transition in Colombia

Investigation on the edge cooling threshold of the density limit in the J-TEXT tokamak with limiter and divertor configurations

Cooling of the plasma edge is widely considered to be a key element in the density limit (DL) of tokamaks. This paper investigates the critical edge cooling threshold of the DL by exploring various plasma configurations in the joint-Texas experimental tokamak. Notably, significant differences in the edge electron temperature in the vicinity of the last closed flux surface were observed between the limiter and divertor configurations. However, the electron temperature drops to a similar level in the vicinity of q= 3 surface close to DL, independent of the magnetic field configuration. In addition, to evaluate the reliability of the critical edge cooling threshold, experiments were conducted by increasing the carbon impurity content to enhance the edge cooling rate. These experiments involved two approaches to increase the carbon impurity content: methane injection and penetration of a graphite solid source. Results from these experiments indicate that the temperature threshold of the q = 3 surfaces remains consistent even with a stronger edge cooling rate. The consistency observed in the electron temperature threshold near the q = 3 surface, regardless of magnetic configuration or edge cooling rate, could help refine existing theoretical and simulation works and improve the prediction accuracy of the DL disruption.

Synthesising graphene from plastic waste and its use with asphalt

The global increase in the plastic waste has resulted in significant pollution increase which causes significant damage to the environment. There is an urgent need for waste management practices such as recycling to ensure sustainable development and decreasing the impact of plastic waste on the environment. The production of new materials such as graphene are associated with high cost, and there have been research efforts to develop cost effective alternative sources of graphite. considerable research has been carried out on investigating the application of homo polypropylene in asphalt construction. successful applications of this will ensure recycling and reduce waste footprint of plastic. The paper presents a proposed method of synthesising graphene from plastic waste and talc at 80 %, and 20 % of that after many experiments. Graphene was monitored at (002). (100). (004) peaks at 2 θ = 26.8°, 42°, with 53 successive physical tests conducted to determine the quality of the graphene produced. The experiments carried out resulted in a successful production of a 98 % pure material. The synthesised graphene was then combined with asphalt using different ratios of weight: 2 %, 6 %, 8 %, and 10 % to test the physical properties of the combination. The results were compared with no graphene usage, the findings validated the findings of similar studies which demonstrate at 6 % ration combination with graphene the asphalt provides better results than without graphene. Also, testing at alternative forces of 6.5 psi and 13 psi at temperatures of 25, 40 and 60, the results showed a noticeable improvement. All tests showed better results in creep and tensile strength. It is concluded that there is a proofed concept to follow this approach to recycle waste plastic in ample ways to reduce the footprint of waste.

Revealing the effect of graphite source on the properties of synthesized graphene oxide

Revealing the effect of graphite source on the properties of synthesized graphene oxide

Adsorption of Crystal Violet with Magnetic Graphene Oxide Nano Adsorbent Synthesized from <i>Schima wallichii</i> Wood

The textile industry continues to experience production developments to reach a target for the country's economic development. The increase in production leads to an increase in the amount of waste generated. Dyes such as crystal violet (CV) in textile wastewater are toxic and difficult to remove by conventional treatment. Adsorption with nano adsorbent has been widely researched and developed to remove dyes in the environment because it has various advantages. Magnetic graphene oxide (GO-Fe3O4) as a006E adsorbent has been widely studied because it has a large surface area, strong chemical bonds and is easily separated from the aqueous phase. Puspa (Schima wallichii) wood has the potential to be used as a natural source of graphite. The characterization of the adsorbent was tested with FTIR, SEM-EDS, and BET. The equilibrium time for the adsorption process was 20 min, while the optimum adsorbent dose was 0.04 g. Adsorption isotherm and kinetics analysis showed that CV adsorption using MGO followed Langmuir and pseudo-second-order models, respectively. Thermodynamic studies displayed that the CV adsorption was endothermic and spontaneous. The results of this study suggested that the adsorption of CV using GO-Fe3O4 nano adsorbent from S. wallichii wood proceeds by chemisorption and physisorption.

Exploring the Unexpected: An AI Model Uncovers Rare Earth Elements

Throughout Earth’s history, powerful geological processes have shaped the planet, formed diverse landscapes, and hidden valuable resources. Like silent architects, these processes play a crucial role in creating the world we see today. One important aspect of this geological story is the formation of critical minerals—essential elements for modern technology. These minerals are not random features but are closely tied to the larger narrative of Earth’s evolution. Scientists and engineers are exploring the connections between geological processes and the creation of critical mineral deposits to understand better how to identify, extract, and produce these deposits to help meet the demand for resources considered the building blocks of an electrified future. Used in various applications, from energy production and national defense to transportation and communication technologies (think batteries for electric vehicles, permanent magnets for wind turbine generators), critical minerals are defined as non-fuel minerals or mineral materials essential to economic or national security and have a supply chain vulnerable to disruption. The International Energy Agency (IEA), in its latest Critical Minerals Market Review, reported that the record deployment of clean energy technologies has propelled the huge demand for critical minerals such as lithium, cobalt, nickel, and copper. “From 2017 to 2022, the energy sector was the main factor behind a tripling in overall demand for lithium, a 70% jump in demand for cobalt, and a 40% rise in demand for nickel,” the report said. “The market for energy transition minerals reached $320 billion in 2022 and is set for continued rapid growth, moving it increasingly to center stage for the global mining industry.” In the US, critical mineral supply chains are heavily dependent on imports. In 2021, the US was 100% import-reliant for 14 of the 50 critical minerals identified by the US Geological Survey (USGS) in 2022. Additionally, according to the USGS, most of the critical minerals that are essential for meeting decarbonization goals have a net import reliance of greater than 50%. Securing Supply of Rare Earth Elements Critical minerals categorized as rare earth elements (REE) are particularly important to reaching decarbonization goals. With a name reminiscent of science fiction superheroes, the lanthanides are a series of 15 elements—plus scandium and yttrium—collectively regarded as REE. REEs range from light (LREE) to heavy (HREE). While not geologically rare, extraction and processing are complex, expensive, and environmentally hazardous. In addition to being a leading source of critical minerals gallium, germanium, and graphite, China dominates REE production and processing. According to a report by The Oxford Institute for Energy Studies, the country is home to some of the most productive and lowest-cost REE-containing geological formations, which the government has been developing since the 1970s. China holds 37% of the world’s REE reserves, as compared to the US, which held only 1% of the reserves in 2019. US critical mineral supply chains have the potential to be disrupted by adverse foreign actions, pandemics, natural disasters, and other global events. For this reason, developing domestic resources to secure supply chains and meet future critical mineral demand has become a national priority, with the signing of Executive Order No. 14017 by US President Joe Biden in February 2021.

Towards Sustainable Lithium-Ion Battery Anodes: Addressing the Critical Need for Graphite Recycling

Graphite is the predominant anode material for all lithium-ion batteries (LIB) currently manufactured. However, despite comprising between 10 and 20 percent of a LIB's weight, graphite is not typically recycled. Graphite has a wide variety of applications outside of LIB, but the value of use in other applications is very low, so only recycling graphite back into anode material will be economically viable. Since graphite is such a stable substance, it should in theory be highly desirable for direct recycling back into anode material. As a result of this stability, several sources of graphite can become intermixed and impossible to separate later, posing a traceability issue. As is the case with cathode materials, there is currently no policy mandating the recycling of graphite.At the same time, graphite (natural) is on the EU's list of critical raw materials (98% imports), and the global supply of graphite for anode materials is entirely dominated by China. The production of natural and synthetic graphite has significant environmental costs, with recent studies indicating a CO2 footprint in the range of 10 to 30 kgCO2/kg graphite, which is significantly higher than what was previously reported in LCA literature. There is a need to establish processes for recycling this valuable material, as its demand is expected to increase dramatically over the next decade.In recent years, Vianode has developed a one-of-a-kind method for converting graphite concentrates from LIB production scrap and end-of-life batteries (black mass) back into anode-grade graphite for use in new LIB. Using a high temperature purification stage, impurities and flaws in graphite can be effectively removed and a purity of over 99.99% can be attained. Cell testing reveals that recycled graphite can achieve the same properties as virgin graphite, including outstanding reversible capacity, first cycle efficiency, fast charge capability, and cycle life. The results indicate that graphite recycling should be implemented as soon as possible to lessen the EU's reliance on graphite imports and significantly reduce the environmental impact of anode materials in LIB.

Development of Graphite Anodes from Coal Derived Carbon

As demand for energy storage expands, securing reliable supply-chains for raw battery materials is critical in mitigating the threats of delayed manufacturing and inflated manufacturing costs. These issues have pushed researchers and industry to consider alternative sources for traditional lithium-ion battery materials, such as graphite. Commonly available sources of graphite for Li-ion anodes include natural graphite and petroleum coke derived synthetic graphite. While many carbon sources have been studied, most require complicated processing and result in sub-par graphite anode materials. This talk highlights raw coal and coal derived materials as promising graphite sources thanks to their abundance of sp2 hybridized carbon, resulting in simpler processing, and low material costs.We show that coal derived graphite can be implemented as a lithium-ion anode, however, many chemical, microstructural, and morphological considerations are necessary to compare with commercial graphite performance. Key topics of this talk include i) the processing steps necessary for achieving high-performing coal-derived graphite, ii) chemical, microstructural, and morphological graphite characterization, and iii) comparative performance of coal-derived graphites and commercial graphite as lithium-ion anodes. Characterization of the anodes’ performance includes gravimetric capacity, initial capacity loss, coulombic efficiency, internal resistance, intercalation energetics, and pseudo-open circuit potential characterization. Emphasis is placed on the careful consideration and effects of fundamental anode properties (particle size, surface area, etc.) because they are crucial in determining the viability of alternative graphite sources for lithium-ion battery anodes.

Supporting Critical Raw Material Circularity – Graphite from Waste LIBS to Zn-Air Batteries

The use of Li-ion batteries (LIBs) in electrical vehicles and consumer electronics is continuously on the rise which means that the amount of spent LIB (SLIB) is on the rise as well. The sustainable recycling of SLIB for production of secondary resources will prevent the loss of valuable materials and ensures safe and economical management of used batteries. During industrial black mass recycling process only Co and Ni from SLIBs is currently recycled, though LIBs contain many other valuable materials too. Graphite, which is used as an anode active material in LIBs, is discarded as a waste during industrial recycling process. Repurposing inexpensive waste graphite has a huge potential to be alternative for pristine graphite.In this research a novel way to prepare bifunctional oxygen electrocatalyst from industrially produced and hydrometallurgically leached black mass leach residue is shown. The recycling leach residue is utilized as a valuable raw material, graphite and transition metal (Co, Mn, Ni) source, with N-precursor for the synthesis of N-Me-C graphite-based electrocatalyst. For the first time the battery metal residues, left into SLIBs recycling waste, are strategically exploited to achieve metal co-doping of graphite-based material. Battery derived electrocatalysts demonstrated promising electrocatalytic activity towards ORR and OER in alkaline media. Moreover, the novel bifunctional oxygen electrocatalysts were used in a rechargeable Zn-air battery as an air cathode catalyst and achieved a high-power density of 104 mW·cm-2 (Figure 1). The advantageous electrochemical activity of the catalyst materials was linked with its surface morphology, structure, porosity, and elemental composition.This research shows the great potential of SLIBs black mass leach residue as a resource for the more sustainable production of high performance and low-cost bifunctional oxygen electrocatalyst appliable in Zn-air battery. Figure 1

Theoretical and Experimental Performance Characterization of Battery Anodes Comprised of Coal Derived Graphite

As demand for energy storage expands, securing reliable supply-chains for raw battery materials is critical in mitigating the threats of delayed manufacturing and inflated manufacturing costs. These issues have pushed researchers and industry to consider alternative sources for traditional lithium-ion battery materials, such as graphite. Commonly available sources of graphite for Li-ion anodes include natural graphite and petroleum coke derived synthetic graphite. While many carbon sources have been studied, most require complicated processing and result in sub-par graphite anode materials. This talk highlights raw coal and coal derived materials as promising graphite sources thanks to their abundance of sp2 hybridized carbon, resulting in simpler processing, and low material costs.We show that coal derived graphite can be implemented as a lithium-ion anode, however, many chemical, microstructural, and morphological considerations are necessary to compare with commercial graphite performance. We will experimentally compare the morphology at the microstructure for graphite from various carbon sources, and then apply the virtual microstructure analysis method as detailed by Lopata et al to quantify potential differences between the anode microstructures with respect to effective active material particle size (diffusion length calculation), the electrochemical surface area, and the tortuosity of the liquid phase domain. These calculations from representative 3D microstructures can then be extended to a porous electrode model as detailed in Garrick et al to probe the impact in ionic, kinetic, and ohmic losses in the system.References Joseph S. Lopata et al 2023 J. Electrochem. Soc. 170 020530Taylor R. Garrick et al 2021 J. Electrochem. Soc. 168 010530

Towards Zero Waste Recovery of Li-Ion Battery

The proliferation of lithium-ion batteries (LIBs) has prompted a critical exploration of sustainable waste management strategies within the battery life cycle. This abstract focuses on waste materials generated during LIB recycling, specifically emphasizing waste water, including the presence of lithium ions, which is most generated at delamination and leaching process, and waste graphite.Waste water, a significant outcome of LIB recycling, often contains valuable lithium ions. Efficient extraction and purification of lithium ions from waste water not only recovers a precious resource but also mitigates the ecological consequences of improper disposal. Advanced methodologies such as solvent extraction, hydrometallurgy and membrane filtration demonstrate promising avenues for selectively recovering lithium ions from waste water streams.Furthermore, addressing the disposal of waste graphite electrodes presents an imperative challenge. Graphite, a cornerstone of LIBs, holds substantial potential for reclamation. Innovations encompassing thermal and chemical processes have been explored for graphite extraction from discarded electrodes. In this study, the recycled graphite after heat treatment direct reuse in batteries is performed. This approach aligns with the principles of a circular economy, promoting resource efficiency and reducing the dependence on primary graphite sources.In conclusion, the recycling of lithium-ion batteries generates waste materials, with a particular focus on waste water enriched with lithium ions and waste graphite electrodes. Confronting these challenges mandates the implementation of advanced recycling techniques. By harnessing valuable materials and alleviating environmental pressures, the LIB recycling sector can lead the transition toward sustainable practices, significantly contributing to a greener and more resource-conscious energy landscape.

Universal high-performance bulk graphites from natural flake graphite by rapid sintering

High performance graphites (HPGs) are a key material in modem industries; however, prevailing HPGs are short of comprehensive properties in many aspects, i.e., a specific property of HPGs is always achieved at the cost of other properties. And the production of HPGs is highly costly and causes severe environmental problems. Current HPGs are derived from various carbonaceous precursors, excluding nature flake graphite (NFG), the best graphite source. Typically, NFG-based bulk graphite has poor mechanical properties because NFG is difficult to sinter. Here we report the preparation and comprehensive properties of a new family of universal HPGs (U-HPGs) that can be mass-produced with moderate conditions by sintering NFG slightly mixed with diamond, where units of onion carbon (OC) with NFG (OC@NFG) act as building blocks. OC@NFG creates a strong interfacial network between the NFGs, giving the U-HPGs outstanding strength and moderate hardness. With U-HPGs being more than 93 % graphitization, the flexural strength exceeds 100 MPa, far superior to mainstream commercial graphites. OC@NFG also bestows U-HPGs with excellent thermal conductivity(＞125 W m−1 K−1 at room temperature). For such structure provides a 3D path for electrons inside U-HPGs, the as-produced material has significant electronical conductivity. This work presents new insights into this old yet important material and allows for innovative design of HPGs for various applications.

Structure characteristics and adsorption performance of graphene oxide prepared by spent carbon cathode-an ultra-low temperature graphitized carbon material.

Spent carbon cathode (SCC) is a hazardous waste from the aluminum electrolysis industry. It is commonly used as a carbon source in the current disposal and recovery strategies, such as combustion, or as a reductant for smelting. The novelty of this study is to propose a strategy for recycling SCC as a graphite resource and to investigate the unique structural characteristics and adsorption properties of graphene oxide produced from this low temperature graphitized carbon. The adsorption kinetics and isotherms of SCC-GO on methylene blue (MB) were studied and compared with the GO prepared from natural flake graphite (NFG) and artificial graphite (AG). The results show that SCC-GO exhibits the highest adsorption rate and adsorption capacity (647.83 mg/g) for MB, which is much higher than NFG-GO (451.22 mg/g) and AG-GO (533.12 mg/g). The analysis of the spectroscopy and morphology confirmed that SCC-GO has a high degree of crystal defects, oxidation, and surface wrinkle. Overall, this study reveals the unique structure of SCC-GO and highlights its significant scientific and application potential as an ultra-low temperature graphitized carbon. This research is also significant for recycling aluminum electrolytic cathode solid waste in the form of a graphite source.

Synthesis and characterization of bio-nanocomposites: Functionalization of graphene oxide with a biocompatible amino acid

Graphene oxide (GO) is a complicated composite which can be synthesized from graphite or other carbon sources by a simple top-down method. Graphene is a two-dimensional carbon sheets which can be oxidized to synthesis its oxide structure. The graphene oxide sheets can be functionalized in order to be used actively in different areas. The graphene oxide nanocomposite materials have attracted researches and scientists’ attention due to their wade applications from electrochemical industry to drug delivery. In this novel work the authors have synthesized graphene oxide films and then functionalized with an amino acid, Lysine, and Cu in order to synthesize the Lysine-Cu-Graphene oxide combination. The novelty of this investigation is the authors have functionalized graphene oxide with l-lysine as an amino acid at diverse temperature. Also, this product is environmentally friendly product since it is soluble in aqueous medium and can be applied as an active antibacterial material. After the synthesizing process, the obtained materials had been characterized using different techniques such as Fourier-transform infrared spectroscopy (FTIR) to confirm the success of the functional reaction. Ultra violet visible (UV–Vis) spectroscopy, atomic force microscopy (AFM), X-ray diffraction (XRD), and thermal gravimetric (TG) analysis, were also utilized to approve the covalent attachment of Lysine and also to show the improvement in the thermal stability of GO.

Synthesis and characterization of a large-quantity of functionalized graphene from graphite by a facile bubble-exfoliation method

In this work, functionalized graphene (FG) was synthesized based on an improved bubble-exfoliation method from cheap defective graphite. By using the improved method, we synthesized a significant amount of FG in a short time while maintaining the acid usage at a low level compared to previous works. Raman spectroscopy, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and ultraviolet–visible spectroscopy (UV–Vis) techniques validated the oxidation effect of the synthesis process on FG, which is in line with the addition of functional groups to it. Transmission electron microscopy, atomic force microscopy, Raman and XRD characterizations showed that FG mainly consists of a thin few-layer structure. X-ray photoelectron spectroscopy (XPS) analysis was also in agreement with the chemical structure validated by FTIR, Raman and UV–Vis, indicating that the functional groups of FG are primarily hydroxyls. Furthermore, it was revealed that the presence of pentagonal–heptagonal defects, confirmed by XPS results, in the graphite source have a significant impact on the success of the synthesis route as the defects play the role of activators for persulfate in the oxidation process.

Catalytic graphitization of coke and electrochemical performances of coke-based graphite

The effect of minerals on the high-temperature graphitization process of coke was thoroughly investigated using by X-ray diffraction (XRD), Raman spectroscopy (Raman), scanning electron microscope (SEM), physical adsorption instrument, etc. The structure-activity relationship between the microstructure of coke-based graphite and lithium storage performances was identified. The findings demonstrate that the microstructure of coke-based graphite is related to the mineral content and the final graphitization temperature affects the Si or Fe catalytic graphitization of coke. The appropriate amount of minerals as the catalyst can reduce the interlayer spacing, improve the graphitization degree and increase the crystallite size of the coke graphitization sample. The catalytic graphitization of coke involves the carbide transition, which is further confirmed by XRD and SEM-EDS analysis. By proper adding the mineral to the coke during the graphitization process, it is clear that the electrochemical performances of the synthetic graphite as anode for lithium-ion batteries can be improved obviously. Coke-based graphite DCG-20Si-2800 and DCG-30Fe-2800 as anode material show good comprehensive electrochemical performances. And the reversible specific capacities of both at 0.1 C are as high as 353.9 mAh/g and 361.9 mAh/g, respectively, which are quite close to the theoretical capacity of graphite (1 C = 372 mAh/g). Thus, the study successfully reveals the law of mineral catalysis in the graphitization process of coke and demonstrates the feasibility of coke-based graphite products as anode material. It can be expected that coke can be useful sources of artificial graphite if the graphitization process is adequately improved.

Improved interfacial mechanical strength and synergy in properties of nano-carbon black reinforced rubber composites containing functionalized graphite nanoplatelets

Due to increasing industrialization, the demand for energy continues to increase. In the present work, piezo-electric energy generation by a composite device was performed and demonstrated. Composites were prepared by solution mixing at room temperature silicone rubber (RTV-SR) precursor with fillers such as nano-carbon black (CB), functionalized graphite nanoplatelets (f-GNPs), and hybrids of CB and f-GNPs. GNPs as a graphite source were functionalized by oxidation using a modified Hummers’ method and subsequently reduced. Fourier transform infrared spectroscopy (FT-IR) studied the carbon and oxygen-containing functional groups, and their binding energies were determined by X-ray photoelectron spectroscopy (XPS). A noticeable and prolonged synergistic effect was noticed in hybrid composites in which the mechanical properties conferred by hybrid nanofillers were greater than those conferred by single nanofillers. This synergetic effect was due to improved interconnectivity between CB particles and f-GNP particles. Compressive and tensile mechanical properties showed the compressive moduli and tensile strengths of hybrid filler-based composites were markedly higher than those of composites containing CB and f-GNPs as only nanofillers. Moreover, energy generation was lower for the CB-based electrode than for CB-f-GNP hybrid-based electrode composites.

Synthesis of graphene oxide and their incorporation in nanostructured polyethersulfone membranes: Study of antibacterial and dyes adsorption properties

AbstractThis work explored the combined antibacterial and selective dye adsorption properties of graphene oxide (GO) incorporated into nanostructured polyethersulfone (PES) membranes. For this purpose, GO synthesis was performed by the Hummers method and characterized by Fourier transform infrared, X‐ray diffraction, Raman spectroscopy, and scanning electron microscopy (SEM) micrographs, using a graphite source as a reference. The dye adsorption capacity of GO was evaluated, obtaining a retention of ca. 66% with methylene blue (MB) and ca. 72% with methyl orange, higher than activated charcoal. In addition, the antibacterial properties of GO were evaluated against Staphylococcus aureus and Pseudomonas aeruginosa, with complete bacterial inhibition after 2 h of contact. GO was successfully incorporated into electrospun PES fibers to fabricate hybrid PES membranes, with a PES film (phase inversion) as substrate and an electrospun surface coating with PES/GO (at 1 wt%) fibers, corroborated by SEM micrographs. As a result, the hybrid PES membrane demonstrates an AA ca. 85% after 2 h of contact with both microorganisms and an improvement in colorant retention after two and four cycles of filtration, respectively. In addition, the adsorption isotherm and kinetics demonstrate the enhancement of the PES/GO membrane's performance in contact with MB solutions. Our results suggest that the GO incorporation into nanostructured hybrid membranes improves the fabrication of multifunctional NF membranes, with a potential application in wastewater treatment.Highlights Combined antibacterial/dye adsorption capacity of PES/GO membranes was found. Nanostructured membrane by PES and PES/GO fibers decorated was obtained. PES/GO demonstrates antibacterial features against Staphylococcus aureus and Pseudomonas aeruginosa. Enhanced dye adsorption capacity of PES/GO membrane was performed with MB. PES/GO membranes show properties for successful NF membrane development.