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Lv C, Cheng H, Fan R, Sun J, Liu X, Ji Y. Fabrication of rGO/BiOI photocathode and its catalytic performance in the degradation of 4-Fluoroaniline. Heliyon 2024; 10:e37024. [PMID: 39286232 PMCID: PMC11402956 DOI: 10.1016/j.heliyon.2024.e37024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 08/26/2024] [Accepted: 08/26/2024] [Indexed: 09/19/2024] Open
Abstract
Organic fluorine compounds are acute carcinogenic and mutagenic to humans. Photoelectrocatalysis (PEC) treatment is an innovative technology in the field of the removal of fluorine compounds, and thus current research focused on improving stability and catalytic ability of photoanode. In this study, it has been synthesized a rGO/BiOI photocathode for the efficient degradation of 4-Fluoroaniline (4-FA). The physical characterization and photoelectrochemical properties of the photocathode was determined. The results indicate that the PEC treatment with the rGO/BiOI photocathode was more efficient compared with individual processes. During the optimization experiments, the PEC treatment achieved 99.58 % and 72.12 % of 4-FA degradation and defluorination within 1 h. Cyclic stability experiments show that rGO/BiOI photocathode was efficient and stable, which reached 96.91 % and 67.64 % of 4-FA degradation and defluorination after five cycles. Mechanism analysis indicates that the PEC process was based on an electrochemical reaction and photo-induced processes. The degradation product of 4-FA was mainly 2,4-di-t-butylphenol, and trapping experiments indicates that h+ is the primary oxidizing species. Therefore, PEC treatment with rGO/BiOI photocathode is a competitive green approach to remove fluorine compounds pollutants and brings new insights into development of PEC treatment.
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Affiliation(s)
- Chenhan Lv
- College of Chemical and Materials Engineering, Quzhou University, Quzhou, 324000, PR China
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Haixiang Cheng
- College of Chemical and Materials Engineering, Quzhou University, Quzhou, 324000, PR China
| | - Rui Fan
- College of Chemical and Materials Engineering, Quzhou University, Quzhou, 324000, PR China
| | - Jingyu Sun
- College of Chemical and Materials Engineering, Quzhou University, Quzhou, 324000, PR China
| | - Xinghai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Yinghui Ji
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, PR China
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Li Z, Feng L, Zhang L, Gao P, Liu Y. Fabrication of porous and defect-rich BiOI/MWCNTs photocatalyst by Ar plasma-etching for emerging pollutants degradation. ENVIRONMENTAL RESEARCH 2024; 252:119015. [PMID: 38692423 DOI: 10.1016/j.envres.2024.119015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/08/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
Carbon material modification and defect engineering are indispensable for bolstering the photocatalytic effectiveness of bismuth halide oxide (BiOX). In this study, a novel porous and defect-rich Ar-CB-2 photocatalyst was synthesized for emerging pollutants degradation. Leveraging the interfacial coupling effect of multi-walled carbon nanotubes (MWCNTs), we expanded the absorption spectrum of BiOI nanosheets and significantly suppressed the recombination of charge carriers. Introducing defects via Argon (Ar) plasma-etching further bolstered the adsorption efficacy and electron transfer properties of photocatalyst. In comparison to the pristine BiOI and CB-2, the Ar-CB-2 photocatalyst demonstrated superior photodegradation efficiency, with the first-order reaction rates for the photodegradation of tetracycline (TC) and bisphenol A (BPA) increasing by 2.83 and 4.53 times, respectively. Further probe experiments revealed that the steady-state concentrations of ·O2- and 1O2 in the Ar-CB-2/light system were enhanced by a factor of 1.67 and 1.28 compared to CB-2/light system. This result confirmed that the porous and defect-rich structure of Ar-CB-2 inhibited electron-hole recombination and boosted photocatalyst-oxygen interaction, swiftly transforming O2 into active oxygen species, thus accelerating their production. Furthermore, the possible degradation pathways for TC and BPA in the Ar-CB-2/light system were predicted. Overall, these findings offered a groundbreaking approach to the development of highly effective photocatalysts, capable of swiftly breaking down emerging pollutants.
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Affiliation(s)
- Zexin Li
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Li Feng
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Liqiu Zhang
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Peng Gao
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
| | - Yongze Liu
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
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Ovari TR, Trufán B, Katona G, Szabó G, Muresan LM. Correlations between the anti-corrosion properties and the photocatalytic behavior of epoxy coatings incorporating modified graphene oxide deposited on a zinc substrate. RSC Adv 2024; 14:10826-10841. [PMID: 38577435 PMCID: PMC10989242 DOI: 10.1039/d4ra00413b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/25/2024] [Indexed: 04/06/2024] Open
Abstract
This research aimed to create a substrate-coating system based on zinc and an epoxy resin incorporating modified graphene oxide, which possesses two key characteristics: effective resistance against corrosion and the ability to harness photocatalytic properties. Furthermore, correlations between the anti-corrosion properties and the photocatalytic behaviour of the coatings were made. Thin epoxy (EP) layers embedding 0.1 wt% graphene oxide (GO), reduced graphene oxide (rGO), and modified graphene oxide with (3-aminopropyl)-triethoxysilane (APTES) or poly(amidoamine) (PAMAM) dendrimer were applied on a zinc (Zn) substrate using the dip-coating method. Anti-corrosion properties of coated Zn samples were investigated through electrochemical impedance spectroscopy (EIS) measurements. They showed that the corrosion protection effect is more prominent for EP containing functionalized GO, the highest in the case of GO-PAMAM. The results of the EIS measurements indicated also that the corrosion protection provided by EP-rGO is smaller than that of EP. The photocatalytic properties of the coatings were studied by exposure of the samples to Methylene Blue (MB) solution followed by monitoring the model dye degradation through UV-Vis measurements. To determine the changes in the anti-corrosion properties due to photocatalysis, the coated Zn samples were put through additional EIS measurements. The same coatings applied to a glass substrate lacked photocatalytic properties, indicating that the Zn substrate is accountable for the degradation of MB. Furthermore, the incorporation of GO or functionalized GO into the coating amplifies this effect. From EIS spectra, it was determined that the protective properties loss observed after 3 days is due to coating delamination during exposure to MB solution, the EP-GO-APTES retaining the best adhesion of the coating, 98% remaining on Zn after a cross-hatch test. The corrosion measurements were complemented by examining the morphology and structure of the coatings and the modified GO particles. All things considered, the Zn/EP-GO-APTES system shows the best ability to break down organic pollutants, keeping a good anti-corrosive property and adhesion.
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Affiliation(s)
| | | | - Gabriel Katona
- Department of Chemistry and Chemical Engineering, Hungarian Line, Babes-Bolyai University, Faculty of Chemistry and Chemical Engineering 11, Arany J. St 400028 Cluj-Napoca Romania
| | - Gabriella Szabó
- Department of Chemistry and Chemical Engineering, Hungarian Line, Babes-Bolyai University, Faculty of Chemistry and Chemical Engineering 11, Arany J. St 400028 Cluj-Napoca Romania
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Chen P, Li J, Wang J, Deng L. Synergistic Enhancement of Carrier Migration by SnO 2/ZnO@GO Heterojunction for Rapid Degradation of RhB. Molecules 2024; 29:854. [PMID: 38398606 PMCID: PMC10892714 DOI: 10.3390/molecules29040854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/10/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Organic dyes in natural waters jeopardize human health. Whether semiconductor materials can effectively degrade dyes has become a challenge for scientific research. Based on this, this study rationally prepared different nanocomposites to remove organic dyes effectively. Pure SnO2 quantum dots, ZnO nanosheets, and SnO2/ZnO (ZS) binary nanocomposites are prepared using the hydrothermal method. Subsequently, SnO2/ZnO@GO (ZSG) ternary composites containing different amounts of GO, i.e., ZSG-5, ZSG-15, and ZSG-25, are synthesized by an ultrasonic water bath method, in which ZS was coupled with GO to form Z-type heterojunctions. The ZSG-15 ternary composites exhibited excellent photocatalytic activity for the degradation of rhodamine B by simulating sunlight. The test results show that the degradation rate of ZSG-15 is about 7.6 times higher than ZnO. The increase in photocatalytic activity is attributed to the synergistic effect of SnO2 and GO to improve the separation efficiency of photogenerated carriers in ZnO. Notably, the large specific surface area of GO increases the reactive sites. Compared with binary nanocomposites, ZSG-15 broadens the response range to light while further accelerating the electron transport rate and improving the photoelectric stability.
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Affiliation(s)
- Pengfei Chen
- School of Physical Science and Technology, Xinjiang University, Urumqi 830017, China; (P.C.); (J.W.); (L.D.)
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830017, China
| | - Jin Li
- School of Physical Science and Technology, Xinjiang University, Urumqi 830017, China; (P.C.); (J.W.); (L.D.)
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830017, China
| | - Jianing Wang
- School of Physical Science and Technology, Xinjiang University, Urumqi 830017, China; (P.C.); (J.W.); (L.D.)
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830017, China
| | - Lihan Deng
- School of Physical Science and Technology, Xinjiang University, Urumqi 830017, China; (P.C.); (J.W.); (L.D.)
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830017, China
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Chen CC, Liu WJ, Shaya J, Lin YY, Liu FY, Chen CW, Tsai HY, Lu CS. Fabrication and characterization of ZnGa 1.01Te 2.13/g-C 3N 4 heterojunction with enhanced photocatalytic activity. Heliyon 2023; 9:e20879. [PMID: 37876426 PMCID: PMC10590798 DOI: 10.1016/j.heliyon.2023.e20879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/09/2023] [Accepted: 10/09/2023] [Indexed: 10/26/2023] Open
Abstract
The extensive consumption of fossil fuels increases CO2 concentration in the atmosphere, resulting in serious global warming problems. Meanwhile, the problem of water contamination by organic substances is another significant global challenge. We have successfully synthesized ZnGa1.01Te2.13/g-C3N4 (ZGT/GCN) composites for the first time as effective photocatalysts for both pollutant degradation and CO2 reduction. ZGT/GCN composites were synthesized by a simple hydrothermal method. The prepared photocatalysts were characterized by XRD, SEM, TEM-EDS, DRS, BET, PL, and XPS. The ZGT/GCN heterojunction exhibited considerably enhanced photocatalytic activity in the degradation of crystal violet (CV) as well as in the photoreduction of CO2 when compared to pure ZGT and GCN semiconductors. The optimal rate constant for CV degradation was obtained with the ZGT-80%GCN composite (0.0442 h-1), which is higher than the constants obtained with individual ZGT and GCN by 7.75 and 1.63 times, respectively. Moreover, the CO2 reduction yields into CH4 by ZGT-80%GCN was 1.013 μmol/g in 72 h, which is 1.21 and 1.08 times larger than the yields obtained with ZGT and GCN. Scavenger and ESR tests were used to propose the photocatalytic mechanism of the ZGT/GCN composite as well as the active species in the CV degradation.
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Affiliation(s)
- Chiing-Chang Chen
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Wen-Jin Liu
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Janah Shaya
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi 127788, United Arab Emirates
- Advanced Materials Chemistry Centre (AMCC), SAN Campus, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Yu-Yun Lin
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Fu-Yu Liu
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Chao-Wei Chen
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Hwei-yan Tsai
- Department of Medical Applied Chemistry, Chung Shan Medical University, Taichung 402, Taiwan
- Department of Medical Education, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Chung-Shin Lu
- Department of General Education, National Taichung University of Science and Technology, Taichung 403, Taiwan
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Kamakshi P, Joshitha C, Chella S, Selvaraj S. Synthesis, characterization of BiOI/rGO nanocomposite and its photocatalytic functionality analysis under visible light. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Ramesh S, Punithamoorthy K. Synthesis and characterization of ternary nanocomposites of
TiO
2
/
rGO
/
CdS
as an efficient catalyst for photo‐degradation of methyl orange. J CHIN CHEM SOC-TAIP 2023. [DOI: 10.1002/jccs.202200473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Nourzad M, Dehghan A, Niazi Z, Giannakoudakis DA, Afsharnia M, Barczak M, Anastopoulos I, Triantafyllidis K, Shams M. Low power photo-assisted catalytic degradation of azo dyes using 1-D BiOI: Optimization of the key physicochemical features. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Lu CS, Tsai HY, Shaya J, Golovko VB, Wang SY, Liu WJ, Chen CC. Degradation of sulfamethoxazole in water by AgNbO 3 photocatalyst mediated by persulfate. RSC Adv 2022; 12:29709-29718. [PMID: 36321077 PMCID: PMC9575158 DOI: 10.1039/d2ra03408e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022] Open
Abstract
In this paper, silver niobate (AgNbO3) material was synthesized by a solid-state reaction. AgNbO3 was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), UV-visible diffuse reflectance spectroscopy (DRS), and Brunauer-Emmett-Teller (BET) measurement. The photocatalytic activity of AgNbO3 was investigated in degradation of sulfamethoxazole (SMX) under visible light, which is a widely used antibiotic with significant threats towards health and aquatic organisms. Persulfate (PS) oxidant was found to improve the efficiency of the proposed photocatalytic removal of SMX by AgNbO3. The different operational parameters in the AgNbO3/PS/Vis system were investigated. The best photocatalytic performance was achieved with 0.5 g L-1 AgNbO3, 1.0 mM PS, and pH = 5.0 as the optimal conditions, achieving 98% of SMX degradation after 8 h of visible-light irradiation. Scavenger and electron spin resonance (ESR) experiments were carried out to identify the major reactive species in the SMX degradation and to propose the photocatalytic mechanism by the AgNbO3/PS/Vis system. The photodecomposition was found to be majorly caused by holes and ˙O2 - species, with ˙OH and SO4˙- radicals contributing to improve the photocatalytic process. The AgNbO3 catalyst was stable and reusable with efficient photocatalytic activity in three successive recycling experiments and its XRD patterns remained virtually unchanged. The reported process of PS activation by the AgNbO3 photocatalyst is promising for visible-light application in remediation of antibiotic-contaminated water.
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Affiliation(s)
- Chung-Shin Lu
- Department of General Education, National Taichung University of Science and Technology Taichung 404 Taiwan Republic of China
| | - Hwei-Yan Tsai
- Department of Medical Applied Chemistry, Chung Shan Medical University Taichung 402 Taiwan Republic of China
- Department of Medical Education, Chung Shan Medical University Hospital Taichung 402 Taiwan Republic of China
| | - Janah Shaya
- College of Medicine and Health Sciences, Khalifa University Abu Dhabi P.O. Box 127788 United Arab Emirates
- College of Arts and Sciences, Khalifa University Abu Dhabi P.O. Box 127788 United Arab Emirates
| | - Vladimir B Golovko
- Department of Chemistry, The MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Canterbury Christchurch 8140 New Zealand
| | - Syuan-Yun Wang
- Department of Medical Applied Chemistry, Chung Shan Medical University Taichung 402 Taiwan Republic of China
| | - Wen-Jin Liu
- Department of Science Education and Application, National Taichung University of Education Taichung 403 Taiwan Republic of China
| | - Chiing-Chang Chen
- Department of Science Education and Application, National Taichung University of Education Taichung 403 Taiwan Republic of China
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Morphology-dependent photocatalytic and photoelectrochemical performance of bismuth oxybromide crystals applied to malachite green dye degradation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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