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Shajahan S, Mohammad AH. Development of Co 3O 4/TiO 2/rGO photocatalyst for efficient degradation of pharmaceutical pollutants with effective charge carrier recombination suppression. ENVIRONMENTAL RESEARCH 2023; 235:116535. [PMID: 37399985 DOI: 10.1016/j.envres.2023.116535] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/21/2023] [Accepted: 06/30/2023] [Indexed: 07/05/2023]
Abstract
Pharmaceutical contaminations in the water resources becomes very serious global environmental issue. Therefore, these pharmaceutical molecules should be removed from the water resources. In the current work, 3D/3D/2D-Co3O4/TiO2/rGO nanostructures were synthesized through a facile self-assembly-assisted solvothermal method for an effective removal of pharmaceutical contaminations. The nanocomposite was finely optimized through the response surface methodology (RSM) technique with different initial reaction parameters and different molar ratios. Various characterization techniques were used to understand the physical and chemical properties of 3D/3D/2D heterojunction and its photocatalytic performance. The degradation performance of ternary nanostructure was rapidly increased owing formation of 3D/3D/2D heterojunction nanochannels. The 2D-rGO nanosheets play an essential role in trapping photoexcited charge carriers to reduce the recombination process rapidly as confirmed by photoluminescence analysis. Tetracycline and ibuprofen were used as model carcinogen molecules to examine the degradation efficiency of Co3O4/TiO2/rGO under visible light irradiation using halogen lamp. The intermediates produced during the degradation process were studied using LC-TOF/MS analysis. The pharmaceutical molecules tetracycline and ibuprofen follows pseudo first order kinetics model. The photodegradation results show that the 6:4 M ratio of Co3O4:TiO2 with 5% rGO exhibits 12.4 times and 12.3 higher degradation ability than pristine Co3O4 nanostructures against tetracycline and ibuprofen, respectively. These results shows high efficiency of Co3O4/TiO2/rGO composite against the degradation of tetracycline and ibuprofen.
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Affiliation(s)
- Shanavas Shajahan
- Department of Chemistry, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Abu Haija Mohammad
- Department of Chemistry, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Advanced Materials Chemistry Center (AMCC), Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
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2
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Koiki B, Muzenda C, Jayeola KD, Zhou M, Marken F, Arotiba OA. Sulfate Radical in (Photo)electrochemical Advanced Oxidation Processes for Water Treatment: A Versatile Approach. J Phys Chem Lett 2023; 14:8880-8889. [PMID: 37766606 PMCID: PMC10561262 DOI: 10.1021/acs.jpclett.3c01361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
The search for a simple and clean approach toward the production of sulfate radicals for water treatment gave rise to electrochemical and photoelectrochemical activation techniques. The photoelectrochemical activation method does not just distinguish itself as a promising activation method, it is also used as an efficient water treatment method with the ability to treat a myriad of pollutants due to the complementary effects of highly reactive oxidizing species. This perspective highlights some merits that distinguish sulfate monoanion radicals from hydroxyl radicals. It highlights the electrochemical, photoelectrochemical, and in situ photoelectrochemical routes of generating sulfate radicals for advanced oxidation process approach to water treatment. We provide a detailed account of the few known applications of sulfate radical enhanced photoelectrochemical treatments of water laden with organics. Finally, we placed this area of research in perspective by providing outlooks and conclusive remarks.
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Affiliation(s)
- Babatunde
A. Koiki
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa
- Centre
for Nanomaterials Science Research, University
of Johannesburg,Johannesburg 2028, South Africa
| | - Charles Muzenda
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa
- Centre
for Nanomaterials Science Research, University
of Johannesburg,Johannesburg 2028, South Africa
| | - Kehinde D. Jayeola
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa
- Centre
for Nanomaterials Science Research, University
of Johannesburg,Johannesburg 2028, South Africa
| | - Minghua Zhou
- Key
Laboratory of Pollution Process and Environmental Criteria, Ministry
of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Frank Marken
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Omotayo A. Arotiba
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa
- Centre
for Nanomaterials Science Research, University
of Johannesburg,Johannesburg 2028, South Africa
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Petruleviciene M, Savickaja I, Juodkazyte J, Grinciene G, Ramanavicius A. Investigation of BiVO 4-based advanced oxidation system for decomposition of organic compounds and production of reactive sulfate species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 875:162574. [PMID: 36871709 DOI: 10.1016/j.scitotenv.2023.162574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/09/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Growth of population and expansion of industries lead to increasing contamination of environment with various organic pollutants. If not properly cleaned, wastewater contaminates freshwater resources, aquatic environment and has huge negative impact on ecosystems, quality of drinking water and human health, therefore new and effective purification systems are in demand. In this work bismuth vanadate-based advanced oxidation system (AOS) for the decomposition of organic compounds and production of reactive sulfate species (RSS) was investigated. Pure and Mo-doped BiVO4 coatings were synthesized using sol-gel process. Composition and morphology of coatings were characterized using X-ray diffraction and scanning electron microscopy techniques. Optical properties were analyzed using UV-vis spectrometry. Photoelectrochemical performance was studied using linear sweep voltammetry, chronoamperometry and electrochemical impedance spectroscopy. It was shown that increase in Mo content affects the morphology of BiVO4 films, reduces charge transfer resistance and enhances the photocurrent in the solutions of sodium borate buffer (with and without glucose) and Na2SO4. Mo-doping of 5-10 at.% leads to 2- to 3-fold increase in photocurrents. Faradaic efficiencies of RSS formation ranged between 70 and 90 % for all samples irrespective of Mo content. All studied coatings demonstrated high stability in long-lasting photoelectrolysis. In addition, effective light-assisted bactericidal performance of the films in deactivation of Gram positive Bacillus sp. bacteria was demonstrated. Advanced oxidation system designed in this work can be applied in sustainable and environmentally friendly water purification systems.
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Affiliation(s)
- Milda Petruleviciene
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Irena Savickaja
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Jurga Juodkazyte
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Giedre Grinciene
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Arunas Ramanavicius
- Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania; Department of Physical Chemistry, Faculty of Chemistry, Vilnius University, Vilnius, Lithuania.
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Li B, Wang YF, Zhang L, Xu HY. Enhancement strategies for efficient activation of persulfate by heterogeneous cobalt-containing catalysts: A review. CHEMOSPHERE 2022; 291:132954. [PMID: 34800505 DOI: 10.1016/j.chemosphere.2021.132954] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 11/07/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
As a clean and efficient technology for the degradation of organic contaminants, sulfate radical based advanced oxidation processes (SR-AOPs) have attracted more and more attention in the past decades. Cobalt is regarded as the most reactive and efficient non-noble metal catalyst for the activation of persulfate including peroxymonosulfate (PMS) and peroxydisulfate (PDS) to produce sulfate radicals. Due to the limitations of homogeneous catalytic systems, the heterogeneous cobalt-containing catalysts have been emerged and rapidly developed. Various strategies have been schemed to further enhance the activation ability of persulfate by heterogeneous cobalt-containing catalysts. This paper provides an overview on the recent progress in enhancement strategies for the highly efficient activation of persulfate by heterogeneous cobalt-containing catalysts. With a brief introduction on the chemistry and feature of sulfate radical reactions catalyzed by homogeneous Co2+/Co3+ species, the main strategies for enhancing persulfate activation by heterogeneous cobalt-containing catalysts are summarized, such as surface and morphology design, multiple reactive centers design, organic-inorganic hybrids and heterostructure composites. Future perspectives of heterogeneous SR-AOPs systems catalyzed by cobalt-containing catalysts are outlined.
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Affiliation(s)
- Bo Li
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, PR China
| | - Yun-Fei Wang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, PR China
| | - Lu Zhang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, PR China
| | - Huan-Yan Xu
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, PR China.
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Liu X, Zhou J, Liu D, Li L, Liu W, Liu S, Feng C. Construction of Z-scheme CuFe 2O 4/MnO 2 photocatalyst and activating peroxymonosulfate for phenol degradation: Synergistic effect, degradation pathways, and mechanism. ENVIRONMENTAL RESEARCH 2021; 200:111736. [PMID: 34310968 DOI: 10.1016/j.envres.2021.111736] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/14/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Photocatalysis coupled with sulfate radical-based advanced oxidation process (SR-AOPs) is an efficient strategy to enhance the degradation efficiency of organic pollution. Herein, a Z-scheme CuFe2O4/MnO2 composite catalyst was successfully fabricated by the hydrothermal method. A series of characterizations demonstrated that the higher CuFe2O4 particle dispersion and larger BET surface area of CuFe2O4/MnO2 catalyst contributed to a high catalytic activity toward the phenol removal compared with pure CuFe2O4. The effects of catalyst concentration, pH, and peroxymonosulfate (PMS) concentration were studied according to the Box-Behnken Design (BBD) method. The results indicated that 100 mg/L 100 mL phenol could be degraded completely at 0.5 g/L CuFe2O4/MnO2 catalyst, pH = 4.8 and 0.5 mM PMS within 30 min. Moreover, the excellent reusability and stability of CuFe2O4/MnO2 were indicated by the results of recycling degradation and ion leaching test. The free radical quenching experiments and electron spin resonance (ESR) confirmed that h+, SO4•-, and •OH were the main reaction species for phenol oxidation. Based on the results of gas chromatography-mass spectrometry (GC-MS) and ion chromatography, the degradation pathway of phenol was proposed, and the toxicity of phenol degradation intermediates was evaluated. This work may provide new insights into the design of heterojunction photocatalysts for PMS activation to remove organic pollutants.
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Affiliation(s)
- Xianjie Liu
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China
| | - Jiabin Zhou
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China.
| | - Dan Liu
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China
| | - Ling Li
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China
| | - Wenbo Liu
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China
| | - Su Liu
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China
| | - Choujing Feng
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China
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Cong Y, Zhang W, Ding W, Zhang T, Zhang Y, Chi N, Wang Q. Fabrication of electrochemically-modified BiVO 4-MoS 2-Co 3O 4composite film for bisphenol A degradation. J Environ Sci (China) 2021; 102:341-351. [PMID: 33637259 DOI: 10.1016/j.jes.2020.09.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 06/12/2023]
Abstract
A new electrochemically-modified BiVO4-MoS2-Co3O4 (represented as E-BiVO4-MoS2-Co3O4) thin film electrode was successfully synthesized for environmental application. MoS2 and Co3O4 were grown on the surface of BiVO4 to obtain BiVO4-MoS2-Co3O4. E-BiVO4-MoS2-Co3O4 film was achieved by further electrochemical treatment of BiVO4-MoS2-Co3O4. The as-prepared E-BiVO4-MoS2-Co3O4 exhibited significantly enhanced photoelectrocatalytic activity. The photocurrent density of E-BiVO4-MoS2-Co3O4 thin film is 6.6 times that of BiVO4 under visible light irradiation. The degradation efficiency of E-BiVO4-MoS2-Co3O4 for bisphenol A pollutant was 81.56% in photoelectrochemical process. The pseudo-first order reaction rate constant of E-BiVO4-MoS2-Co3O4 film is 3.22 times higher than that of BiVO4. And its reaction rate constant in photoelectrocatalytic process is 14.5 times or 2 times that in photocatalytic or electrocatalytic process, respectively. The improved performance of E-BiVO4-MoS2-Co3O4 was attributed to the synergetic effects of the reduction of interfacial charge transfer resistance, the formation of oxygen vacancies and sub-stoichiometric metal oxides and higher separation efficiency of photogenerated electron-hole pairs. E-BiVO4-MoS2-Co3O4 is a promising composite material for pollutants removal.
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Affiliation(s)
- Yanqing Cong
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Wenhua Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Wenchen Ding
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Tongtong Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yi Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Nianping Chi
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qi Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China.
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7
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Son A, Lee J, Lee C, Cho K, Lee J, Hong SW. Persulfate enhanced photoelectrochemical oxidation of organic pollutants using self-doped TiO 2nanotube arrays: Effect of operating parameters and water matrix. WATER RESEARCH 2021; 191:116803. [PMID: 33440314 DOI: 10.1016/j.watres.2021.116803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/15/2020] [Accepted: 01/02/2021] [Indexed: 06/12/2023]
Abstract
This study investigated the influence of adding peroxydisulfate (PDS) to a photoelectrocatalysis (PEC) system using self-doped TiO2 nanotube arrays (bl-TNAs) for organic pollutant degradation. The addition of 1.0 mM PDS increased the bisphenol-A (BPA) removal efficiency of PEC (PEC/PDS) from 65.0% to 85.9% within 1 h. The enhancement could be attributed to the high formation yield of hydroxyl radicals (·OH), increased charge separation, and assistance of the sulfate radicals (SO4·-). The PDS concentration and applied potential bias were influential operating parameters for the PEC/PDS system. In addition, the system exhibited a highly stable performance over a wide range of pH values and background inorganic and organic constituents, such as chloride ions, bicarbonate, and humic acid. Further, the degradation performance of the organic pollutant mixture, including BPA, 4-chlorophenol (4-CP), sulfamethoxazole (SMX), and carbamazepine (CBZ), was evaluated in 0.1 M (NH4)2SO4 solution and real surface water. The degradation efficiency increased in the order of CBZ < SMX < 4-CP < BPA in the PEC and PEC/PDS systems with both water matrices. Compared with the PEC system, the PEC/PDS (1.0 mM) system showed a threefold higher pseudo first-order reaction rate constant for BPA among pollutant mixtures in surface water. This was attributed to enhanced ·OH production and the selective nature of SO4·-. The pseudo first-order reaction rate constants of other pollutants, i.e., 4-CP, SMX, and CBZ increased ca. twofold in the PEC/PDS system. The results of this study showed that the PEC/PDS system with bl-TNAs is a viable technology for oxidative treatment.
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Affiliation(s)
- Aseom Son
- Civil, Environmental, and Architectural Engineering, Korea University, Seoul 136-701, Republic of Korea; Water Cycle Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Jiho Lee
- Water Cycle Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Changha Lee
- School of Chemical and Biological Engineering, Institute of Chemical Process, Institute of Engineering Research, Seoul National University, Seoul 08826, Republic of Korea
| | - Kangwoo Cho
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea; Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University International Campus, Incheon 21983, Republic of Korea
| | - Jaesang Lee
- Civil, Environmental, and Architectural Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Seok Won Hong
- Water Cycle Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Division of Energy and Environment Technology, KIST-School, University of Science and Technology, Seoul 02792, Republic of Korea.
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8
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Fu F, Zhang Y, Zhang Y, Chen Y. Synthesis of Mn-doped and anatase/rutile mixed-phase TiO 2 nanofibers for high photoactivity performance. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00307k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A soft membrane of Mn@TiO2 NFs was fabricated by an electrospinning and thermal annealing process. It shows a mixture phase and a palpably increased specific surface area, which ensured a pronounced enhancement of the photocatalytic activity.
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Affiliation(s)
- Fan Fu
- National Engineering Laboratory for Modern Silk
- College of Textile and Clothing Engineering
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Yufan Zhang
- National Engineering Laboratory for Modern Silk
- College of Textile and Clothing Engineering
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Yan Zhang
- National Engineering Laboratory for Modern Silk
- College of Textile and Clothing Engineering
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Yuyue Chen
- National Engineering Laboratory for Modern Silk
- College of Textile and Clothing Engineering
- Soochow University
- Suzhou 215123
- People's Republic of China
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9
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Huang J, Liu T, Wang R, Zhang M, Wang L, She H, Wang Q. Facile loading of cobalt oxide on bismuth vanadate: Proved construction of p-n junction for efficient photoelectrochemical water oxidation. J Colloid Interface Sci 2020; 570:89-98. [DOI: 10.1016/j.jcis.2020.02.109] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/22/2020] [Accepted: 02/26/2020] [Indexed: 01/11/2023]
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Yuan X, Sun X, Zhou H, Zeng S, Liu B, Li X, Liu D. Free-Standing Electrospun W-Doped BiVO 4 Porous Nanotubes for the Efficient Photoelectrochemical Water Oxidation. Front Chem 2020; 8:311. [PMID: 32391331 PMCID: PMC7192020 DOI: 10.3389/fchem.2020.00311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/30/2020] [Indexed: 01/08/2023] Open
Abstract
While bismuth vanadate (BiVO4) has emerged as a promising photoanode in solar water splitting, it still suffers from poor electron-hole separation and electron transport properties. Therefore, the development of BiVO4 nanomaterials that enable performing high charge transfer rate at the interface and lowering charge recombination is urgent needed. Herein, cobalt borate (Co-B) nanoparticle arrays anchored on electrospun W-doped BiVO4 porous nanotubes (BiV0.97W0.03O4) was prepared for photoelectrochemical (PEC) water oxidation. One-dimensional, free-standing and porousBiV0.97W0.03O4/Co-B nanotubes was synthesized through electrospun and electrodeposition process. BiV0.97W0.03O4/Co-B arrays exhibit a unique self-supporting core-shell structure with rough porous surface, providing abundant conductive cofactor (W) and electrochemically active sites (Co) exposed to the electrolyte. When applied to PEC water oxidation. BiV0.97W0.03O4/Co-B modified FTO electrode displays high incident photon-to-current conversion efficiency (IPCE) of 33% at 405 nm (at 1.23 V vs. RHE) and its photocurrent density is about 4 times to the pristine nanotube. The higher PEC water oxidation properties of BiV0.97W0.03O4/Co-B porous nanotubes may be attributed to the effectively suppress the electron-hole recombination at electrolyte interface due to its self-supporting core-shell structure, the high electrocatalytic activity of Co and the good electrical conductivity of BiV0.97W0.03O4 arrays. This work offers a simple preparation strategy for the integrated Co-B nanoparticle with BiV0.97W0.03O4 nanotube, demonstrating the synergistic effect of co-catalysts for PEC water oxidation.
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Affiliation(s)
- Xiuhua Yuan
- School of Mechanical and Automotive Engineering, Liaocheng University, Liaocheng, China
| | - Xia Sun
- Department of Chemistry, Liaocheng University, Liaocheng, China
| | - Huawei Zhou
- Department of Chemistry, Liaocheng University, Liaocheng, China
| | - Suyuan Zeng
- Department of Chemistry, Liaocheng University, Liaocheng, China
| | - Bingxin Liu
- Department of Chemistry, Liaocheng University, Liaocheng, China
| | - Xia Li
- Department of Chemistry, Liaocheng University, Liaocheng, China
| | - Dong Liu
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, High Tech Key Laboratory of Agricultural Equipment and Intelligentization of Jiangsu Province, School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, China
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Pan H, Xie H, Chen G, Xu N, Wang M, Fakhri A. Cr2S3-Co3O4 on polyethylene glycol-chitosan nanocomposites with enhanced ultraviolet light photocatalysis activity, antibacterial and antioxidant studies. Int J Biol Macromol 2020; 148:608-614. [DOI: 10.1016/j.ijbiomac.2019.12.262] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/28/2019] [Accepted: 12/30/2019] [Indexed: 01/31/2023]
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12
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Li S, Bychkov KL, Butenko DS, Terebilenko KV, Zhu Y, Han W, Baumer VN, Slobodyanik MS, Ji H, Klyui NI. Scheelite-related MBi 1-xV 1-xMo xO 4 (M II- Ca, Sr) solid solution-based photoanodes for enhanced photoelectrochemical water oxidation. Dalton Trans 2020; 49:2345-2355. [PMID: 32022074 DOI: 10.1039/c9dt04417e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The photoelectrochemical properties of scheelite-related MBi1-xV1-xMoxO4 (MII = Ca, Sr, x = 0.1 to 0.9) solid solutions deposited on conductive glass (coated with SnO2, F-doped) have been investigated as photoanodes in photoelectrochemical (PEC) water splitting. The variation of the final annealing temperature during the preparation of the conduction electrodes as well as the value of substitution x have been shown to affect the PEC performance. The micropowders of MBi1-xV1-xMoxO4 (MII = Ca, Sr, x = 0.1 to 0.9) samples were first fabricated vi a solid-state method; they were characterised by SEM microscopy and powder and single crystal X-ray diffraction, and the band gap values were estimated using diffusive reflectance data. The value of substitution x = 0.1 in the cases of samples containing calcium and strontium affords the highest PEC performance reported for the whole range of substitution. These results demonstrate a promising approach for the beneficial utilization of BiVO4-substituted scheelite-related solid solutions in photo-electrochemical cells towards efficient and inexpensive photoanodes.
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Affiliation(s)
- Shilin Li
- Sino-Russian International Joint Laboratory for Clean Energy and Energy Conversion Technology, College of Physics, Jilin University, Changchun 130012, P. R. China
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