Oxidation Of Compounds Research Articles

Corrosion of EP-823 STEEL (16Kh12MVSFBR) under conditions of high-temperature processing of spent nuclear fuel

The corrosion behavior ofEP-823 steel was studied during high-temperature treatment (HTT) with nitrogen. Itwas found that innitrogen attemperatures of 650–800°C, the steel issubject toonly slight surface corrosion. Itis shown that there isa slight change inthe surface composition and structure ofsteel, which does not have asignificant effect onthe reprocessing ofmodel SNF. Itis shown that onthe surface ofthe material, processes ofinteraction ofsome electronegative components offerritic-martensitic steel with components ofthe gas phase–nitrogen and impurity oxygen–occur with the formation ofinclusions ofnitride and oxide compounds ofchromium and manganese ofdifferent stoichiometric compositions. The process islimited bythe diffusion ofthese components from the volume ofthe alloy tothe surface. The corrosion rates ofEP-823 steel attemperatures of 650 and 800 ° Cwere 0.104 and 0.241 mm / year for 12 hours ofexposure, and 0.013 and 0.02 mm/year for 84 hours ofexposure, respectively. The nature ofthe destruction ofthe surface ofthe samples iscontinuous and uneven, localization ofcorrosion atthe boundaries ofsteel grains isclearly observed, which isassociated with the formation ofsecondary phases along the grain boundaries. Atthe temperature ofthe treatment, significant sensitization ofsteel occurs, chain-like precipitation ofsecondary phases isobserved along the grain boundaries, which leads tothe development ofintercrystalline corrosion. Conclusions are made about the change inthe structure ofthe material during high-temperature exposure and the nature ofthe corrosion damage ofthe material isdetermined; based onthe results ofX-ray fluorescence analysis, conclusions are made about the composition ofthe corrosion products ofEP-823 steel.

Fragmentation Considerations Using Amidoamine Oxide Homologs.

This study investigates the mass spectrometric analysis of 10 novel amidoamine oxide compounds, which are innovative hydrogelators for polar solvents. This research aims to identify characteristic fragment patterns for these amide compounds using high-resolution mass spectrometry. Methanol solutions of the compounds were analyzed in positive and negative ion modes, and MS1 and MS2 spectra at 6 collision energy levels were obtained via electrospray ionization and hybrid tandem mass spectrometry. The importance of low-intensity peaks in structure elucidation was emphasized because low-intensity fragments could provide crucial structural information, especially for compounds with similar structures. Chain-length-dependent fragmentation patterns were observed, which could aid in predicting the structures of related compounds. This research highlights the challenges of balancing informative low-intensity peaks with accurate spectral matching in databases. Based on our results, combining mass spectrometry with separation techniques, such as liquid chromatography, could enhance structural elucidation for unknown compounds. This study contributes to the broader field of mass spectrometry and structural chemistry, particularly in the analysis of amide compounds, and future directions are proposed for developing robust algorithms for selecting and interpreting low-intensity peaks to improve compound identification in complex mixtures.

Application of the methodology for modeling thesubsolidus phase composition within the framework of multicomponent oxide systems for controlling the slag regime of oxygen converter melting

A theoretical study of the subsolidus phase structure of multicomponent oxide systems CaO‒MgO‒Al2O3‒SiO2‒FeO‒Fe2O3 and CaO‒MgO‒Al2O3‒SiO2‒MnO‒TiO2 has been carried out. The separation of the CaO‒MgO‒Al2O3‒SiO2‒MnO‒TiO2 system into ensembles of mutually coexisting phases using the concept of optical basicity of oxide compounds is proposed. A technique for modeling the equilibrium phase composition within these systems based on their subsolidus phase structure is proposed. This technique is the basis for estimating the liquidus temperature and determining the areas of primary crystallization of phases based on the chemical composition of the slags of the converter process. The developed methodology and software based on it can be used to determine the limits of solubility of refractory phases in slag melts, and to numerically evaluate the slag corrosion of the lining of an oxygen converter.

Graphene Oxide and Based Materials: Synthesis, Properties, and Applications – A Comprehensive Review

Graphene-based materials have garnered significant interest in the burgeoning field of contemporary flexible and bendable technologies. Graphene has emerged as a prime candidate for the development of flexible electronics due to its outstanding electrical, mechanical, and optical properties, coupled with the ease of functionalizing its derivatives. This review provides an exhaustive analysis of the latest advancements in the synthesis and applications of graphene-based composites. Exceptional properties of Graphene including high thermal conductivity, chemical stability, optical transparency, high current density, and increased surface area, have broad implications across thermodynamics, chemistry, optics, and mechanics. The growing use of graphene oxide materials across various industries has fueled a surge in interest. The synthesis of graphene oxide compounds follows established procedures such as those by Brodie, Staudenmaier, and Tour, with ongoing discussions on large-scale production using various oxidants. Recent developments have led to numerous new, enhanced, and modified Hummers techniques for producing graphene oxide. Graphene oxide (GO) serves as a crucial foundational material for a wide range of applications, including energy storage, water purification, and as a composite in biosensors, electronics, and hazardous gas removal. This review delves into these applications, highlighting GO’s role in improving the efficiency and performance of these technologies. Additionally, the paper addresses the current challenges and obstacles in the development and application of graphene, providing insights into potential solutions and future research directions. By offering a comprehensive and practical database, this review aims to facilitate the future development of graphene-based composite materials, driving innovation and advancements in various high-impact applications.

Influence of processing of seitan, tempeh, and firm regular tofu on protein and lipid oxidation and Maillard reaction products formation

The impact of production and cooking on protein oxidation, lipid oxidation and Maillard reaction products (MRPs) generation was evaluated for firm regular tofu, tempeh, and seitan, three plant-based alternatives to meat products. Tofu showed higher content of protein-bound carbonyls (25.5 ± 5.4 nmol/mg protein) indicating higher degree of protein oxidation, while seitan exhibited the lowest content of MRPs like N(6)-carboxymethyllysine, as revealed by LC-MS/MS. Through determination of the peroxide value and thiobarbituric acid reactive substances as well as analysis of volatile oxidation compounds by GC–MS, an overall higher lipid oxidation level was found in tofu. Likewise, a mean 92.2 % depletion of naturally occurring antioxidant tocopherol, assessed by HPLC-DAD, was observed in tofu. Furthermore, acrylamide was detected in tofu at 196.0 ± 15.4 μg/kg after frying at 190 °C. This study, therefore, concluded that practices used in tempeh and seitan processing are promising strategies to limit oxidation and Maillard reactions in food.

Trace Metal Levels in Seawater, Suspended Particulate Matter and Sediment in Mersin Bay, Turkey

The concentrations and distributions of trace metals in surface sediment, water and suspended particulate matter (SPM) in coastal area of Mersin Bay were studied to determined the anthropogenic inputs from surrounding activities. Elevated zinc levels (275 ppm) represent the trace metal with the highest concentration, as measured in suspended particulate matter samples collected from the Kazanlı and Karaduvar areas. The high concentrations are associated with terrestrial inputs from the anthropogenic (domestic +industrial) sources. An important observation is that increasing concentrations are found in dissolved phase, sediment and particulate phase, respectively. But this is not the case for Cr which is higher in sediment. This is related to intense activity of chromium processing plant working for many years. Moreover, Cd and Cr concentrations in surface sediments are above the shale average. Heavy metal concentrations in surface sediments are Cr>Zn>Cu>Pb>Cd, respectively. The elevated copper level relative to cadmium in surface sediments is likely attributable to the higher stability of surface complexes with clay minerals, which constitute the primary components of the sediments. Adsorption of zinc to iron and manganese oxide compounds in the sediment is a possible explanation for the high amounts of zinc that were found in the sediments. The estimated index values (enrichment factor, geoacumulation index and pollution load index) indicated widespread contamination of Cr and Cd in Mersin Bay. The origins of these trace metals in the sediments were caused by human activity, and the region was categorized as a moderately severely polluted area.

CHARACTERIZATION SUBSOLIDUS SYSTEM STRUCTURE CaO - Al2O3 - CoO – NiO

The paper presents the results of calculations characterizing the elements of the subsolidus structure of the CaO– Al2O3 – CoO – NiO system, which is promising for the production of modified aluminous cements and heterophase materials with a complex of unique properties. Insufficient information about the structure of the four-component phase diagram of a certain multicomponent system makes it difficult to obtain such materials. To predict the phase composition of materials, theoretical studies of the structure of the system were carried out. An analysis of the features of the coexistence of heterophase combinations was carried out, taking into account geometric-topological and statistical characteristics. The technological risks of predicting the phase composition of materials that arise in certain concentration regions of the system under study are shown. Calculations were carried out over the entire temperature range, both up to the melting point of the ternary oxide compound Ca3CoAl4O10 at 1439 K, and in a higher temperature region. Using known methods, the characteristics of eutectics in some sections of the system under study, which is of interest for the technological design of materials, were calculated. The results of calculations of the characteristics of eutectics show that among the analyzed tetrahedra, the minimum eutectic temperature (1367 K) is observed between the oxides of cobalt, nickel, calcium-cobalt aluminate and calcium monoaluminate, which can be realized for the synthesis of heterophase materials with a high content of Ca3CoAl4O10. Such materials have practical application in various industries: lime production; lime binders; corundum abrasives and refractories; high temperature catalysts; ceramics with special electromagnetic properties.

Enhancing reactive oxygen release-replenishment and Lewis acid acidity by Nb doping in NbmCeOx for simultaneous elimination of NOx and toluene

Multi-pollutant control (MPC) is a promising technology for the simultaneous removal of nitrogen oxidation (NOx) and volatile organic compounds (VOCs) in fossil and biomass fuel combustion. This study uses Nb doping CeO2 bimetallic oxide catalysts to meet low-temperature NH3-SCR de-NOx, catalytic toluene oxidation and simultaneous elimination of NOx and toluene. X-ray diffraction (XRD), Raman and transmission electron microscopy (TEM) are applied to confirm the Nb doping into the lattice of CeO2 for Nb0.034CeOx and Nb0.36CeOx, but excess Nb in polymeric state NbOx present in Nb0.36CeOx. The effects of Nb doping on surface adsorbed oxygen, surface lattice oxygen and bulk phase lattice oxygen were investigated by XPS, EPR, O2-TPD, H2-TPR and DFT calculations. Using in-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), it is investigated that the surface reactive oxygen species (including surface adsorbed oxygen and surface lattice oxygen) participates in NO oxidation, NH3 activation and toluene oxidation process. The reaction mechanism of NH3-SCR de-NOx, toluene oxidation and multi-pollutant co-elimination processes, as well as interactions between multiple reactants in the MPC reaction, were also studied with in-situ DRIFTS. It is found that Nb doping contributes to the mobility of lattice oxygen, which favors the oxidation of NH3 to NH2 and the release and rapid replenishment of reactive oxygen species at temperature ≥ 210 °C. The strong Lewis acid sites (Nb5+) promote the adsorption of NH3 species and their stability. These facilitate the NH3-SCR de-NOx in a wide temperature range and achieve the elimination of multiple pollutants on Nb0.034CeOx. So, Nb0.034CeOx exhibits matching activity temperature window in 170–390 °C for MPC (100 ppm toluene and 1000 ppm NO) over 90 % NO and toluene conversion in wet condition. Polymeric NbOx inhibits the activity of surface adsorbed oxygen and surface lattice oxygen and weakens the acidity of Lewis acid, therefore leading Nb0.36CeOx to poor performance of toluene oxidation and NH3-SCR at low-temperature.

Content of nitric oxide and glycative compounds in cured meat products-Negative impact upon health

Content of nitric oxide and glycative compounds in cured meat products-Negative impact upon health

Long short term memory networks for predicting resilient Modulus of stabilized base material subject to wet-dry cycles

The resilient modulus (MR) of different pavement materials is one of the most important input parameters for the mechanistic-empirical pavement design approach. The dynamic triaxial test is the most often used method for evaluating the MR, although it is expensive, time-consuming, and requires specialized lab facilities. The purpose of this study is to establish a new model based on Long Short-Term Memory (LSTM) networks for predicting the MR of stabilized base materials with various additives during wet-dry cycles (WDC). A laboratory dataset of 704 records has been used using input parameters, including WDC, ratio of calcium oxide to silica, alumina, and ferric oxide compound, Maximum dry density to the optimal moisture content ratio (DMR), deviator stress (σd), and confining stress (σ3). The results demonstrate that the LSTM technique is very accurate, with coefficients of determination of 0.995 and 0.980 for the training and testing datasets, respectively. The LSTM model outperforms other developed models, such as support vector regression and least squares approaches, in the literature. A sensitivity analysis study has determined that the DMR parameter is the most significant factor, while the σd parameter is the least significant factor in predicting the MR of the stabilized base material under WDC. Furthermore, the SHapley Additive exPlanations approach is employed to elucidate the optimal model and examine the impact of its features on the final result.

Coal structure evaluation and morphological properties that affect the coal usage in industries

The contemporary research article is central to understanding coal structure evaluation and the morphological development impacting its utilization in different applications. Through Mineral Liberation Analysis (MLA) designs high content phyllosilicates minerals and swelling clay minerals were rationalized to provides a novel insight into enhanced coal beneficiation and the benefits of coal by-product re-utilization progressions that encourage safer environments and economic sustainability. This work commences with collection of five (5) different coal samples from the central district region in Botswana, sample characterization deploying Thermogravimetric coal analysis (TGA), x-ray fluorescence spectroscopy (XRF), x-ray diffraction (XRD), scanning electron microscopy (SEM) and the Hardgrove Grindability Index (HGI) test that was directed to quantification of the coal hardness and fracture toughness during milling. The cumulative objective was to understand the correlation that exists between the natural composition of the coal sample and their adaptation and application in various carbonaceous products. A solid connection was thus identified in the sulfur and phosphorus weight percentage inclusions in all the coal materials hence higher significance in sphalerite mineral phases (Zn, Fe) S critically increased the fracture toughness and hardness properties. Moreover, mineral amalgams intrinsic to the coal maceral such as aluminum oxides (Al2O3), silicate (SiO2), calcites (CaO), Iron oxide (Fe2O3), potassium feldspars (K − AlSi3O8), albite (Na − AlSi3O8), and anorthite (Ca − Al2Si2O8) compounds in alkali feldspars were detected in larger quantities. The coal industry has attracted much industrial attention to manufacturing foundations producing cement, ceramic tiles, paving bricks, and material synthesis and will continue to supply other economic sectors in the conceivable future.Graphical

Eco-Conscious Approach to Synthesizing Aluminum Oxides Using Nonthermal Plasma Technology

AlO is a prevalent oxide compound composed of aluminum and oxygen, with the chemical formula Al2O3. This study aims to prepare aluminum oxide nanoparticles using aluminum nitrate nonahydrate Al(NO[Formula: see text] 9H2O through direct exposure to a plasma jet system using argon gas, as plasma is the fourth state of matter and a common effective method. The major study in the preparation of Al2O3 nanoparticles, which is a physical method, examines the effect of aluminum oxide nanoparticles against bacteria and fungi. Different methods were used for diagnosis. The X-ray diffraction examination showed an average particle size of 37.8 nm. It was also found through the UV-Vis examination that a surface plasmon resonance was formed at 300 nm with an energy gap value of 4.21 eV. The electron microscope field emission scanning (FE-SEM) was used to study the surface morphology. The results of biological testing showed that aluminum oxide nanoparticles have high antibacterial and antifungal activity.

Physicochemical characterization of thermally oxidized rapeseed oil: An insight into combining acoustic diagnostic technique and chemometrics

This study aimed to apply an ultrasonic pulse-echo system to characterize thermally oxidized rapeseed oil. After 60 h of heating treatment (165 ± 5°C), the physicochemical (density, viscosity, acid value, iodine value and polar compounds) and acoustic properties (velocity, acoustic impedance, maximum amplitude of the first echo, difference in amplitude, and area under the curve) of rapeseed oil were measured. Support vector machine, random forest (RF), and backpropagation neural network algorithms were used to establish quantitative prediction models for viscosity and polar compounds based on the acoustic properties of rapeseed oil. The results indicated significant correlations between acoustic impedance and viscosity (R=0.70), as well as between acoustic impedance and polar compounds (R=0.79). Heating treatment reduced oil unsaturation and led to the formation of oxidative and polymeric compounds, which in turn increased the velocity and impedance, while decreasing the other three acoustic features. The RF model yielded the best performance in predicting viscosity (R2=0.7944) and polar compounds (R2=0.8385). These findings highlight that ultrasonic technology not only accurately predicts key quality parameters, but also provides a rapid, non-destructive, and cost-effective alternative to traditional methods for characterizing thermally oxidized rapeseed oil.

Fabrication and Performance Assessment of CuFeNiMnTi High Entropy Alloy through Mechanical Alloying and Spark Plasma Sintering

High Entropy Alloys (HEAs) have drawn significant attention due to their outstanding properties and potential for industrial applications. The present study investigates the fabrication and evaluation of CuFeNiMnTi HEA, synthesized by means of mechanical alloying (MA) and spark plasma sintering (SPS). The sample that was optimally prepared at 920 °C using the SPS technique was selected and subjected to comprehensive characterization using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) to examine microstructural changes and evaluate mechanical properties, including Vickers microhardness, fracture toughness, shear strength, and wear resistance. The addition of carbon from the process control agent (PCA) and the interaction between titanium and carbon resulted in the formation of titanium carbides, while oxide compounds served as lubricants, thereby reducing friction. The sintered CuFeNiMnTi alloy showed a fracture toughness of 9.24±0.5MPamat the room temperature. Mechanical testing exhibited significant improvements, yielding a microhardness of 563±22 HVN and Ultimate Shear Strength (USS) of 439±19MPa. The alloy demonstrated outstanding mechanical properties, structural stability, and improved wear resistance, making it suitable for advanced engineering applications. The improved wear performance at higher temperature, compared to lower temperature, could be attributed to surface oxidation and a change in the dominant wear mechanism. This study highlights the effectiveness of MA and SPS techniques in the manufacturing of high-performance HEAs, emphasizing its flexibility in customizing alloys with specific desired properties.

Unveiling BaTiO3-SrTiO3 as Anodes for Highly Efficient and Stable Lithium-Ion Batteries.

Amidst the swift expansion of the electric vehicle industry, the imperative for alternative battery technologies that balance economic feasibility with sustainability has reached unprecedented importance. Herein, we utilized Perovskite-based oxide compounds barium titanate (BaTiO3) and strontium titanate (SrTiO3) nanoparticles as anode materials for lithium-ion batteries from straightforward and standard carbonate-based electrolyte with 10% fluoroethylene carbonate (FEC) additive [1M LiPF6 (1:1 EC: DEC) + 10% FEC]. SrTiO3 and BaTiO3 electrodes can deliver a high specific capacity of 80 mA h g-1 at a safe and low average working potential of ≈0.6 V vs. Li/Li+ with excellent high-rate performance with specific capacity of ~90 mA h g-1 at low current density of 20 mA g-1 and specific capacity of ~80 mA h g-1 for over 500 cycles at high current density of 100 mA g-1. Our findings pave the way for the direct utilization of perovskite-type materials as anode materials in Li-ion batteries due to their promising potential for Li+ ion storage. This investigation addresses the escalating market demands in a sustainable manner and opens avenues for the investigation of diverse perovskite oxides as advanced anodes for next-generation metal-ion batteries.

A Comparative Study of Hydrothermally Leached Al3TM and Al3TM-Rh (TM=Zr, V, Ce) Intermetallic Compounds for Catalytic Oxidation of Carbon Monoxide.

Rise of the mute assassin "carbon monoxide (CO)" levels impact all aerobic life. The elevated rates of CO concentration endure climatic and geographical characteristics that exacerbate air pollution. Herein, a simple approach for hydrothermal leaching (HyTL) of Al3TM-Rh0.5 (Target material (TM)=Zr, V, Ce) and Al3TM (TM=Zr, V, Ce) intermetallic compounds produces leached products of ZrO2, VO2, and CeO2 with Rhodium (Rh) as an active component. The characterization result reveals the HyTL process and the presence of the active Rh element that elevated the performance of HyTL-Al3Zr-Rh0.5 towards CO conversion compared to other samples. Further, the cubic ZrO2 phase selectively forms after HyTL at 130 °C even though the formation of the cubic ZrO2 phase takes place at a high temperature. Moreover, the presence of Rh promotes higher catalytic activity in all the cases with low temperatures. The advancement in the present study towards the catalytic oxidation of CO over the hydrothermally leached ZrO2-Rh nanocatalyst guarantees the perspective of the aggregation-activation process.

Metabolic mechanisms of carbon and nitrogen interactions during anaerobic digestion of coal

There was limited research on the impact of nitrogen metabolism in the process of methane production with coal, even if carbon and nitrogen metabolism were closely interconnected. Lignite was the source of carbon and nitrogen in anaerobic digestion system. The relationship between carbon and nitrogen metabolism was systematically discussed during the anaerobic digestion process. The results showed that phenolic carbon or ether carbon (C-O), pyridine-type nitrogen (N-6) and nitrogen oxide compound (N-X) in coal were decomposed under the action of Macellibacteroides, Sphaerochaeta and Trichococcus in the hydrolysis stage, respectively. In the acidogenesis stage, the stress of volatile fatty acids and ammonia produced by dissolved organic matter under the action of Syner-01 and Sphaerochaeta on hydrogenotrophic and acetoclastic methanogens was alleviated during the nitrogen cycle. In the acetogenesis stage, acetic acid produced from the decomposition of organic acids and alcohols by Synergistaceae and Sedimentibacter was competed by denitrifying bacteria and acetogenic methanogens. In the methanogenesis stage, CO2 was reduced by Methanobacterium and Methanoculleus to produce CH4, while acetic acid was decomposed by Methanosaeta to produce CH4. And methyl substances were generated into CH4 by Methanosarcina and Methanofastidiosum. This understanding will provide a basis for strengthening the favorable factors in biomethane production.

Using Celery Powder in a Semi-Dry Fermented Sausage 'Heat-Treated Sucuk': Nitrosamine Formation, Lipid Oxidation, and Volatile Compounds.

This study investigated the effect of using celery powder (CP) as source of pre-converted nitrite (treatments: A: 150 mg/kg NaNO2, B: 100 mg/kg NaNO2 + CP as 50 mg/kg NaNO2 equivalent, C: 50 mg/kg NaNO2 + CP as 100 mg/kg NaNO2 equivalent, D: CP as 150 mg/kg NaNO2 equivalent) on the physicochemical and microbiological properties in heat-treated sucuk (HTS), a kind of semi-dry fermented sausage. The influence of cooking time (CT) on the nitrosamine formation in HTS with and without CP was also determined. The results indicated that the use of CP increased the pH value and decreased the aw value. Micrococcus/Staphylococcus and residual nitrite were not affected by the use of CP. TBARS value varied from 0.78 to 0.90 mg MDA/kg. CP did not affect the abundance of hexanal in HTS, however, it increased the abundance of camphene. The results of PCA showed that treatments A, B, and C had similar volatile compound profiles. CP did not affect both N-nitrosodimethylamine and N-nitrosodiethylamine, but their levels increased as the CT increased. Increased CT also resulted in increased N-nitrosopiperidine (NPIP) in all treatments, but the cooking for 1 min did not cause a significant increase in treatments A, B, and C. CP leads to a significant increase in NPIP content, especially after 3 and 5 min of cooking in HTS.

Reducing the overpotential of overall water spitting by micro-pump-like electrode engineering

Electrolyzing water for hydrogen generation consumes a significant amount of electricity. Minimizing bubble accumulation on the electrodes can reduce the overpotential, thereby enhancing the efficiency of water electrolysis. In this work, Co1.8Mn1.2S4 as the catalyst for oxygen evolution reaction (OER) was optimized from 54 compounds of oxides and sulfides of Ni, Co, and Mn, then designed a three-dimensional electrode with a pump-like function to expel bubbles from the electrodes. Using laser-assisted curing 3D printing technology, a capillary array with side holes was fabricated and utilized as a support structure for the Co1.8Mn1.2S catalyst. During water electrolysis, the electrolyte enters the interior of the capillary through the side holes, and the bubbles inside the capillary are released from both ends of the capillary. The optimized electrode achieved 10 mA cm−2 at an overpotential of 345 mV during the OER, and reached 100 mA cm−2 at an overpotential of 435 mV. In-situ optical microscopy observations and fluid dynamics simulations demonstrated that bubbles were effectively released through the main outlet of the capillary. In overall water splitting, the current density reached 10 mA cm−2 at 1.646 V, without significant current decay after 60 h continuous operation. The electrode design presented holds promise for broader applications in catalytic reactions, such as CO2 reduction, electrochemical ammonia synthesis, and electrochemical treatment of water pollutants.

Photoelectrochemical sensor based on copper tetraamino phthalocyanine graphene oxide covalent compound for sensitive detection of cefazolin sodium

In the present research, a novel photoelectrochemical (PEC) sensor was built to detect cefazolin sodium. A copper tetraamino phthalocyanine (CuTAPc) covalently linked graphene oxide compound (CuTAPc-GO) was fabricated successfully by covalent bonding of CuTAPc with graphene oxide (GO). The novel PEC sensing platform was prepared using CuTAPc-GO as a photoelectric material. The prepared PEC sensor showed a higher PEC efficiency under red light. In the perfect conditions, the PEC sensor exhibited a linear correlation in detecting cefazolin sodium concentrations between 0.25 and 12.5 μM, featuring a detection limit at 0.15 μM. Furthermore, the manufacturing sensor was employed to detect cefazolin sodium in a real-world sample, demonstrating commendable sensitivity and stability. Thus, our study provides a new method for cefazolin sodium detection.