Photodegradation Of Pollutants Research Articles

Efficient degradation of tetracycline using a nanostructured g-C3N4/Nb2O5/HPEI/PES photocatalytic membrane

• g-C 3 N 4 /Nb 2 O 5 /HPEI/PES photocatalytic membrane was fabricated via phase inversion method • Addition of g-C 3 N 4 /Nb 2 O 5 to PES improved hydrophilicity and water flux • 0.3%-g-C 3 N 4 /Nb 2 O 5 /PES showed the highest photocatalytic degradation of tetracycline • Methoxyacetylene and 2,3-butadienoate were detected as the by-products from photodegradation of tetracycline Graphitic carbon nitride/niobium oxide (g-C 3 N 4 /Nb 2 O 5 ) heterostructure within a hyperbranched polyethyleneimine (HPEI) template was prepared via the in-situ hydrothermal method. This heterostructure was embedded for a polyethersulfone (PES) polymer matrix using the phase inversion technique and applied on the photodegradation of tetracycline pollutant in water. To determine the structural formation of the membranes Fourier transform infrared spectroscopy (FTIR) was used. The hydrophilicity, water flux and morphology of the fabricated nanocomposite were investigated using water contact angle and SEM techniques, respectively. The nanocomposite membranes showed improved hydrophilicity from 60° up to 48° as compared to pure PES (65°). Furthermore, adding the heterostructure to the PES matrix improved the morphological features of the nanocomposite membrane resulting in large macrovoids and reduced pore size. The performance, pathway and mechanism of the tetracycline photocatalytic degradation by the g-C 3 N 4 /Nb 2 O 5 /HPEI/PES photocatalytic membrane were investigated using liquid chromatography-mass spectrometry (LC-MS). Tetracycline, as an active pharmaceutical compound, was fragmented into seven innocuous by-products with 2,3-butadienoate and methoxyacetylene, appearing at 83m/z and 59 m/z respectively, being the most stable fragments. The tetracycline degradation efficiency of the 0.3% g-C 3 N 4 /Nb 2 O 5 /HPEI/PES photocatalytic membrane at pH 10 was the highest with 88% efficiency over 180 minutes of consecutive irradiations.

Fabrication of hierarchical hollow BiOBr@ZnIn2S4 heterojunction to enhance the visible-light-driven photodegradation of dyes

The photodegradation of pollutants is a significant and friendly technology to protect the environment. The fabrication of hierarchical heterojunction is the efficient method to improve the photocatalytic performance. Herein, the hierarchical type-II BiOBr@ZnIn2S4 heterojunction is fabricated successfully via a simple chemistry method. The optimal sample BS170 (the volume of 170 mL ethylene glycol) exhibits the higher photodegradation under the visible light and presents 2.3 times higher than that of pure BiOBr for degradation of MO and the mass of BS170 is the half of BiOBr could achieve the same photocatalytic effect as BiOBr for the photodegradation of RhB. The results indicate the fabric of heterojunction could enhance the absorption capacity of visible light and separation efficiency of photoinduced electron-hole pairs to increase the photodegradation. Therefore, this work provides the novel strategy for fabricating the hierarchical type-II heterojunction photocatalyst for the degradation of dyes.

Enhanced visible-light photodegradation of organic pollutants by surface plasmon resonance supported Ag/ZnO heterostructures

Enhanced visible-light photodegradation of organic pollutants by surface plasmon resonance supported Ag/ZnO heterostructures

Fabrication of ternary nano-heterojunction via hierarchical deposition of α-Fe2O3 and β-La2S3 on cubic CoCr2O4 for enhanced photodegradation of doxycycline

The current study offers the design of a novel photocatalyst for the effective removal of pharmaceuticals wherein the heterojunction was constructed with the objective of capturing maximum solar spectrum and to ensure effective separation of photogenerated charge carriers. The nano-heterojunction was fabricated through ultrasonication-assisted co-precipitation method by the hierarchical deposition of α-Fe2O3 and β-La2S3 on cubic CoCr2O4 spinel. The fabricated nanomaterials were extensively characterized by using XRD, Raman, FTIR, XPS, SEM, TEM, EDAX, PL, EIS, BET, and DRS. The photoluminescence and EIS analysis revealed the mitigated charge carrier recombination in CoCr2O4/α-Fe2O3/β-La2S3 (CFL) that resulted in superior photodegradation of doxycycline (DOX) (92.83 %) under visible light irradiation. Mineralization percentage of 92.5 % was affirmed by TOC analysis. Further, the influence of pH, ions, concentration of DOX and CFL dosage on the photodegradation process was studied. The active participation of the reactive species involved in the reaction were identified by scavenging assay and ESR. Finally, a possible photocatalytic mechanism of CFL for the degradation of DOX with underlying pathway is proposed with the help of GC–MS/MS analysis. The study highlights the great promise of CFL photocatalyst as well as the potential of n-n-p heterojunction for appliances in the photodegradation of organic pollutants.

Structural, optical, and photocatalytic properties of La3+ doped CeO2 nanospheres for enhanced photodegradation of tetracycline

This work reports the structural, optical, and photocatalytic properties of Ce1−xLaxO2 nanospheres (x = 0, 0.04, 0.06, 0.08, and 0.10) for the photodegradation of organic pollutants. The Ce1−xLaxO2 samples with particle sizes of ∼ 9–30 nm were prepared by a solution method using polyvinyl pyrrolidone (PVP) as a polymer precursor. The prepared Ce1−xLaxO2 samples were characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results of XRD and TEM with selected area electron diffraction (SEAD) show that the prepared Ce1−xLaxO2 nanospheres have a cubic fluorite structure without secondary phase. The XPS shows the presence of oxygen vacancies on the surfaces of all samples. The Ce0.90La0.10O2 sample shows the highest concentration of oxygen vacancies, causing a decrease in Eg, and thus resulting in an enhancement of its photocatalytic activity. The photocatalytic activities of the CeO2 and Ce1−xLaxO2 photocatalysts were studied by the degradation of TC solution under visible light irradiation. Pure CeO2 shows poor photocatalytic activity with about 43 % of TC degraded in 40 min, while Ce1−xLaxO2 exhibits significantly higher photocatalytic efficiency, which increases with La-doping concentration. It is proposed that photogenerated holes are the main active species for photochemical degradation of the TC via Ce0.90La0.10O2 upon irradiation with visible light, while superoxide radicals and hydroxyl radicals are the less active species. Our results indicate that, with excellent photocatalytic performance, the Ce1−xLaxO2 nanospheres can be further developed for photocatalytic applications.

Novel C-dots/titanate nanotubular hybrid materials with enhanced optical and photocatalytic properties

Advanced nanomaterials with enhanced optical and photocatalytic properties for the photodegradation of organic pollutants, in particular pharmaceuticals and personal care products (PPCPs), were successfully prepared by a swift one-pot synthesis. Nanostructured materials were synthesized through an integrated hydrothermal procedure which generates titanate nanotubes (TNTs) with different carbon dots (C-dots) contents, from an amorphous titanium oxide-based source and cork industry wastewaters (CIWW) as carbon source. Their structural, microstructural, morphological, and optical properties were studied by XRD, TEM, XPS, UV-Vis diffuse reflectance and photoluminescence spectroscopies. As aimed, the hybrid C-dots/TNT nanomaterials extend their light absorption towards the red, in comparison to pristine TNT, prompting them for a more efficient use of light in photocatalysis by widening the TNT energy uptake range. The decrease of bandgap energy with increasing sample’s C-dots content seems to be originated from energy intermediate states formed within the TNTs’ forbidden band resulting from Ti−O−C bonds established between the TNTs and the C-dots that form tails of states.The as-synthesized C-dots/TNT samples were tested in the photodegradation of caffeine as a pollutant model for PPCPs. Rewarding results were obtained, with the hybrid C-dots/TNT nanomaterials showing significant enhanced photocatalytic ability toward caffeine degradation in comparison to pristine TNTs. Photocatalysis assays in the presence of scavengers and/or in the absence of oxygen were also performed aiming to characterize the most reactive species formed during the semiconductor photo-activation process and thus assessing to possible reactive pathways underpinning the photocatalytic activity of the hybrid C-dots/TNT nanomaterials.

Polymeric organic–inorganic C3N4/ZnO high-performance material for visible light photodegradation of organic pollutants

Polymeric organic–inorganic C3N4/ZnO high-performance material for visible light photodegradation of organic pollutants

Soft Magnetic Microrobots for Photoactive Pollutant Removal.

"Soft" robotics based on hydrogels appears as an alternative to the traditional technology of "hard" robotics. Soft microrobots are employed for drug delivery and cell manipulation. This work develops magnetic hydrogel-based microrobots using chitosan (CHI) as the body of the micromotor and Fe3 O4 nanoparticles to allow for its magnetic actuation. In addition, ZnO nanoparticles are incorporated inside the CHI body of the microrobot to act as an active component for pollutants photodegradation. CHI@Fe3 O4 -ZnO microrobots are used for the efficient photodegradation of persistent organic pollutants (POPs). The high absorption of CHI hydrogel enhances the POP photodegradation, degrading it 75% in just 30min. The adsorption-degradation and magnetic properties of CHI@Fe3 O4 -ZnO microrobots are used in five cycles while maintaining up to 60% photodegradation efficiency. The proof-of-concept present in this work represents a simple way to obtain soft microrobots with magnetic actuation and photodegradation functionalities for several water purification applications.

Rhombohedral/Cubic In2O3 Phase Junction Hybridized with Polymeric Carbon Nitride for Photodegradation of Organic Pollutants.

In recent studies, phase junctions constructed as photocatalysts have been found to possess great prospects for organic degradation with visible light. In this study, we designed an elaborate rhombohedral corundum/cubic In2O3 phase junction (named MIO) combined with polymeric carbon nitride (PCN) via an in situ calcination method. The performance of the MIO/PCN composites was measured by photodegradation of Rhodamine B under LED light (λ = 420 nm) irradiation. The excellent performance of MIO/PCN could be attributed to the intimate interface contact between MIO and PCN, which provides a reliable charge transmission channel, thereby improving the separation efficiency of charge carriers. Photocatalytic degradation experiments with different quenchers were also executed. The results suggest that the superoxide anion radicals (O2-) and hydroxyl radicals (·OH) played the main roles in the reaction, as opposed to the other scavengers. Moreover, the stability of the MIO/PCN composites was particularly good in the four cycling photocatalytic reactions. This work illustrates that MOF-modified materials have great potential for solving environmental pollution without creating secondary pollution.

Eco-Friendly Gelatin–Cerium–Copper Sulphide Nanoparticles for Enhanced Sunlight Photocatalytic Activity

Using a semiconductor catalyst with sunlight can make the photodegradation of pollutants an economically viable process since solar energy is an abundant natural energy source. Solar photocatalysis can provide clean and green eco-friendly technology for the analysis of industrial effluents. Photocatalytic deterioration of the aqueous solution of malachite green oxalate dye (MGO dye) was studied using gelatin–cerium–copper sulphide (Ge-Ce-CuS) nanoparticles under the sunlight source. The nanoparticles were synthesised by a hydrothermal process. The structural properties of the nanoparticles have been characterised by XRD, SEM, EDS, HR-TEM, and XPS. The effects of the initial concentration of dye, dosage of photocatalyst, reaction time, and pH on dye removal efficiency were studied. The mineralisation of MGO dye has been confirmed by chemical oxygen demand (COD) measurements. The reusability of the catalyst was proved. The antibacterial activity has been studied for the synthesised nanoparticles. The higher photocatalytic degradation efficiency of Ge-Ce-CuS is explained by its reduced electron-hole recombination and sunlight activity.

A high-efficiency solar water evaporation-photocatalysis system achieved by manipulating surface wettability and constructing heterojunction

Recent developments in integrating photocatalysis into solar-driven interfacial water evaporation have attracted much attention. Herein, β-In2S3 nanosheets decorated 2H phase MoS2 nanosheet arrays (MSIS) were proposed for synchronous solar-driven water evaporation and photodegradation of organic pollutants. The modification of hydrophobic 2H phase MoS2 with In2S3 switched the surface wettability. The intrinsic narrow bandgaps of both MoS2 and In2S3 endowed the solar absorber with a solar absorptance of 96.0 %, and the light utilization of the MSIS was further improved due to its hydrophilicity during solar-driven interfacial water evaporation. Moreover, the MSIS not only boosted the solar-driven interfacial water evaporation by tailoring the wettability of the solar absorber, but also enhanced its photocatalytic degradation over organic pollutants by the formation of heterojunction interfaces between MoS2 and In2S3. Specifically, the optimal solar absorber, only composed of semiconductors, exhibited a 4.2-times enhancement in photocatalytic rate constant without the compromise on solar-driven water evaporation (achieving an evaporation rate of 1.56 kg·m−2·h−1 under one sun). The heterojunction-based solar absorber featuring favorable hydrophilicity offered exciting opportunities to construct the high-efficiency solar water evaporation-photocatalysis system for the treatment of contaminated water.

Bacterial cellulose flakes loaded with Bi2MoO6 nanoparticles and quantum dots for the photodegradation of antibiotic and dye pollutants

Effective strategies to improve charge separation in semiconductor particles are critical for improving the photodegradation of organic pollutants at levels sufficient for environmental applications. Herein, Bi2MoO6 (BMOMOF), comprising both nanoparticles (NPs) and quantum dots (QDs), was synthesized from a bismuth-based metal-organic framework (Bi-MOF) precursor. Surface defects on BMOMOF, the combination of NPs and QDs, and modified energy band edges improved photogenerated charge separation and facilitated redox reactions. When compared to BMO derived from uncoordinated Bi, the BMOMOF photocatalyst (PC) was more efficient at photodegrading tetracycline hydrochloride (TCH) and ciprofloxacin (CIP), two widely-used antibiotics ubiquitous in wastewater, as well as the carcinogenic pollutant rhodamine B (RhB). BMOMOF was then loaded on the biopolymer bacterial cellulose (BC) to further enhance photocatalytic performance and facilitate the recovery of the PC after water treatment processes. The novel BMOMOF/BC photocatalytic flakes were significantly larger than pure BMOMOF, and thus easier to recuperate. Furthermore, anchoring BMOMOF on BC flakes augmented significantly the photodegradation of TCH, CIP, and RhB, mainly because hydroxyl groups in BC act as hole traps facilitating photogenerated electron-hole separation. Results obtained with BMOMOF/BC highlight promising approaches to develop optimal PCs for aqueous pollutants degradation.

Eco-friendly cubic-ZnS coupled Cu7S4 spines on chitosan matrix: Unravelling defect-engineered nanoplatform for the photodegradation of p-chlorophenol

Novel ZnS–Cu7S4 nanohybrid supported on chitosan matrix, as an ideal photocatalyst, was fabricated by the sonochemical method wherein high-resolution transmission electron microscopy (HRTEM) and X-ray powder diffraction (XRD) analysis confirmed the co-existence of both ZnS and Cu7S4; presence of vacancy sites in ZnS was verified by electron paramagnetic resonance (EPR) analysis and their introduction could promote two-photon excitation facilitated visible light response and charge transport/separation. The type II interface is formed in the ZnS–Cu7S4/Chitosan heterojunction owing to interstitial states that promote charge separation. The ZnS–Cu7S4/Chitosan was used for the photodegradation of a pharmaceutical pollutant, p-chlorophenol (PCP); over 98.8% of PCP photodegradation was achieved under visible-light irradiation where the ensued ·O2− and ·OH serve a key role in the photodegradation of PCP. In vitro cytotoxicity studies substantiated that the ZnS–Cu7S4/Chitosan is nontoxic to the ecosystem and human beings and endowed with promising photodegradation properties and accessibility via an environmentally friendly design, bodes well for its potential remediation applications.

Versatile iodine-doped BiOCl with abundant oxygen vacancies and (110) crystal planes for enhanced pollutant photodegradation

Crystal plane regulation, defect engineering, and element doping can effectively solve the problems of large band gaps, poor light absorption, and fast recombination of BiOCl. In this work, iodine-doped BiOCl (I/BiOCl) nanowafers with abundant (110) crystal planes and oxygen vacancies (OV) were prepared by a simple hydrothermal method and assessed for pollutant photodegradation. I/BiOCl with a molar ratio of I to Cl of 0.6 (I0.6/BiOCl) degraded under visible light 95.8% of the toxic dye rhodamine B and 85.1% of the persistent antibiotic tetracycline in 5 and 10 min, respectively. In comparison, unmodified BiOCl photodegraded only between 42.0% and 48.2% of these critical water pollutants. Furthermore, I0.6/BiOCl was highly stable with most of its photocatalytic activity remaining after 4 cycles. Three reasons explain the excellent photodegradation properties of I0.6/BiOCl. First, the doped photocatalyst grew abundant (110) crystal planes, which inhibits the recombination of photogenerated electron-hole pairs. Second, the large quantity of OV present in I0.6/BiOCl increased active sites for reactive oxygen species generation, improved photogenerated charge separation, and pollutants adsorption. Lastly, I0.6/BiOCl had a modified electronic band structure enhancing light absorption. Overall, these results describe a promising photocatalyst capable of degrading efficiently major pollutants with different structures.

Bi4O5I2 nanosheets as a novel nanofiller for fabrication of antifouling polyethersulfone nanocomposite membranes

Bi4O5I2 is one of the bismuth-rich oxyhalides that exhibited impressive activity in the photodegradation of different organic pollutants. In this research, Bi4O5I2 nanosheets were synthesized, characterized, and applied for fabricating a hydrophilic and antifouling polyethersulfone (PES) membrane by blending in the membrane matrix. The prepared nanocomposite membranes exhibited improved antifouling properties especially when UV irradiation was used during the washing of the fouled membranes. Hydrophilicity enhancement and photocatalytic property of the Bi4O5I2 nanosheets have an excellent synergistic effect, which can yield more hydroxyl radicals (•OH) for efficient removal of the foulant from the membrane surface. The pure water flux can achieve 235.4 L/m2 h (3 bar) when 0.5 wt% Bi4O5I2 was used. The addition of the nanosheets to the membrane matrix in low amounts decreased the membrane surface roughness and increased membrane porosity. The BSA, Reactive Orange 16, Reactive Black 5, and Pb(II) filtration tests showed that the 1 wt% Bi4O5I2 PES membranes provided a good performance of 98.3, 70.3, 92.6, and 47.2 % rejection ability, respectively. In this research, for the first time, the Bi4O5I2 photocatalyst was blended into the membrane matrix which provided a new idea for the progress of highly effective self-cleaning ultrafiltration membranes.

Hydrothermally derived Cr-doped SnO2 nanoflakes for enhanced photocatalytic and photoelectrochemical water oxidation performance under visible light irradiation

Photocatalytic dye degradation is a method of environmental degradation that is commonly used to eliminate various pollutants produced by pharmaceutical and textile industries. Herein, pure and chromium (Cr)-doped SnO2 nanoflakes were synthesized using a simple facile hydrothermal method and photocatalytic properties were studied under visible light illumination. In addition, photoelectrochemical (PEC) water oxidation properties were also studied using the prepared samples. Doping of transition metal ions introduces structural defects, which narrow the band gap of host sample, resulting in high catalytic activity. The synthesized doped SnO2 displayed a rutile tetragonal crystal phase with a nanoflakes-like surface morphology having no other contaminations. The optical band gap of Cr-doped SnO2 nanoflakes was significantly reduced (2.48 eV) over the pure sample (3.32 eV), due to successful incorporation of Cr ions into the host lattice. Furthermore, the dye removal efficiency of these nanoflakes was investigated for methyl orange (MO) and tetracycline (TC) organic contaminations. The Cr-doped SnO2 nanoflakes exhibited superior photodegradation with 87.8% and 90.6% dye removal efficiency, within 90 min of light illumination. PEC water oxidation analysis showed that the doped photoelectrode achieved enhanced photocurrent density and showed a higher photocurrent density (1.08 mA cm−2) over that of the undoped electrode (0.60 mA cm−2). Electrochemical impedance spectroscopy (EIS) showed that doped electrodes exhibited lesser charge resistance than the pure electrode. The synthesized Cr-doped SnO2 nanoflakes are suitable for water oxidation and photodegradation of organic pollutants. Thus, we strongly believe that the obtained results in this report will continue to provide new opportunities for the improvement of effective visible light photocatalysts for industrial wastewater treatment and water splitting for H2 generation.

MgO-La2O3mixed metal oxides heterostructure catalysts for photodegradation of dyes pollutant: synthesis, characterization and artificial intelligence modelling.

In the present work, we prepared MgO-La2O3-mixed-metal oxides (MMO) as efficient photocatalysts for degradation of organic pollutants. First, a series of MgAl-%La-CO3-layered double hydroxide (LDH) precursors with different contents of La (5, 10, and 20 wt%) were synthesized by the co-precipitation process and then calcined at 600°C. The prepared materials were characterized by XRD, SEM-EDX, FTIR, TGA, ICP, and UV-vis diffuse reflectance spectroscopy. XRD indicated that MgO, La2O3, and MgAl2O4 phases were found to coexist in the calcined materials. Also, XRD confirms the orthorhombic-tetragonal phases of MgO-La2O3. The samples exhibited a small band gap of 3.0-3.22eV based on DRS. The photocatalytic activity of the catalysts was assessed for the degradation of two dyes, namely, tartrazine (TZ) and patent blue (PB) as model organic pollutants in aqueous mediums under UV-visible light. Detailed photocatalytic tests that focused on the impacts of dopant amount of La, catalyst dose, initial pH of the solution, irradiation time, dye concentration, and reuse were carried out and discussed in this research. The experimental findings reveal that the highest photocatalytic activity was achieved with the MgO-La2O3-10% MMO with photocatalysts with a degradation efficiency of 97.4% and 93.87% for TZ and PB, respectively, within 150min of irradiation. The addition of La to the sample was responsible for its highest photocatalytic activity. Response surface methodology (RSM) and gradient boosting regressor (GBR), as artificial intelligence techniques, were employed to assess individual and interactive influences of initial dye concentration, catalyst dose, initial pH, and irradiation time on the degradation performance. The GBR technique predicts the degradation efficiency results with R2 = 0.98 for both TZ and PB. Moreover, ANOVA analysis employing CCD-RSM reveals a high agreement between the quadratic model predictions and the experimental results for TZ and PB (R2 = 0.9327 and Adj-R2 = 0.8699, R2 = 0.9574 and Adj-R2 = 0.8704, respectively). Optimization outcomes indicated that maximum degradation efficiency was attained under the following optimum conditions: catalyst dose 0.3g/L, initial dye concentration 20mg/L, pH 4, and reaction time 150min. On the whole, this study confirms that the proposed artificial intelligence (AI) techniques constituted reliable and robust computer techniques for monitoring and modeling the photodegradation of organic pollutants from aqueous mediums by MgO-La2O3-MMO heterostructure catalysts.

Fabrication and mechanism of a novel photocatalyst UiO-66-NH2 (Zr)/Bi2MoO6 heterojunction toward enhanced pollutant photodegradation

Fabrication and mechanism of a novel photocatalyst UiO-66-NH2 (Zr)/Bi2MoO6 heterojunction toward enhanced pollutant photodegradation

Improvement of Congo Red Photodegradation Performance Through Zn/Al-TiO2 and Zn/Al-ZnO Preparation

Layered double hydroxide (LDH) is an anionic clay material known to be effective as a catalyst for the photodegradation of dye organic pollutants. Zn/Al LDH was synthesized by coprecipitation then impregnated with metal oxides and calcined at 300oC to form Zn/Al-TiO2 and Zn/Al-ZnO as photodegradation catalysts of congo red (CR). The characterization of the catalysts after preparation using SEM and UV-DRS while the catalyst that have been used in 5 regeneration cycles was characterized by XRD and FTIR. Photodegradation of CR was carried out by optimizing pH, catalyst weight, and time radiation. Zn/Al LDH which was modified into Zn/Al-TiO2 and ZnAl-ZnO had a better degradation percentage, rate constant, and stability than Zn/Al LDH pristine structure. Zn/Al LDH, Zn/Al TiO2 and Zn/Al-ZnO catalyzed CR photodegradation for 120 minutes with percent degradation 68.39%, 81.24% and 71.09%, respectively.

Highly efficient photodegradation of toxic organic pollutants using Cu-doped V2O5 nanosheets under visible light

Photodegradation of organic pollutants using metal oxides has shown extraordinary promise owing to the catalytic efficacy, low cost, less noxiousness, and good chemical constancy. In this research, pure and transition metal ions (Cu)-doped V2O5 nanosheets were synthesized and investigated for their photocatalytic efficiency using methyl blue (MB) and rhodamine B (RhB) organic dye pollutants under visible light irradiation. The orthorhombic crystal phase was confirmed by XRD analysis, which exhibited a stable phase upon incorporating Cu dopant ions. Optical properties were examined using optical absorption spectroscopy, while a reduced band gap was observed in the doped V2O5 nanosheets over the undoped sample. EIS analysis confirmed lower charge resistance in doped V2O5 nanosheets. The Cu dopant incorporation into the host matrix considerably enhanced photodegradation efficiency for MB and RhB impurities under light illumination. The improvement in catalytic efficacy is attributed to dopant ions that can separate photoinduced charge carriers and the quick movement of the charge. Moreover, comparatively lesser crystalline size, improved specific surface area, and hydroxyl group onto the catalyst surface are quite advantageous to offer better photocatalytic activity of Cu-doped V2O5 nanosheets.