1
|
Chen H, Meng F, Feng X, Zhao Y, Xie T, Wang D, Lin Y. Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO 4 for Rapid Tetracycline Degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12778-12791. [PMID: 38843811 DOI: 10.1021/acs.langmuir.4c01421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2024]
Abstract
In this work, cobalt-doped oxygen-vacancies-rich BiVO4 (Co/BiVO4-Vo) was successfully synthesized for the degradation of tetracycline (TC) by activated peroxymonosulfate (PMS) under visible light. The morphologies, microstructures, and optical properties of the photocatalysts were analyzed in detail. Co/BiVO4-Vo exhibited significantly enhanced degradation, removing 92.3% of TC within 10 min, which was greater than those of pure BiVO4 (62.2%) and oxygen-vacancies-rich BiVO4 (BiVO4-Vo) (72.0%), respectively. The photogenerated charge separation and transport properties were explored through surface photovoltage (SPV), photoluminescence spectrum (PL), and UV-vis diffuse reflectance spectroscopy (UV-vis DRS) measurements. Additionally, an in-depth investigation was conducted on the photocatalytically assisted advanced oxidation processes based on SO4•- (SR-AOPs) for the degradation of organic pollutants. The experimental results showed that the introduction of oxygen vacancies and Co doping achieved an effective separation of photogenerated carriers, which could accelerate the cycling between Co3+ and Co2+ and further activate PMS. The results of free radical capture experiments and electron spin resonance (ESR) experiments showed that reactive oxygen species (ROSs) such as 1O2, •O2-, and SO4•- played a dominant role in the removal of pollutants. This work provides a novel insight into the further development of efficient and rapid PMS photoactivators for environmental remediation of water bodies.
Collapse
Affiliation(s)
- Hao Chen
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Fanyu Meng
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Xiao Feng
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Yunhong Zhao
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Tengfeng Xie
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Dejun Wang
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Yanhong Lin
- College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| |
Collapse
|
2
|
Zhang J, Chen K, Bai Y, Wang L, Huang J, She H, Wang Q. An MgO passivation layer and hydrotalcite derived spinel Co 2AlO 4 synergically promote photoelectrochemical water oxidation conducted using BiVO 4-based photoanodes. NANOSCALE 2024; 16:10038-10047. [PMID: 38712536 DOI: 10.1039/d4nr00815d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
MxCo3-xO4 co-catalysed photoanodes with high potential for improvement in PEC water-oxidizing properties are reported. However, it is difficult to control the recombination of photogenerated carriers at the interface between the catalyst and cocatalyst. Here, an ultra-thin MgO passivation layer was introduced into the MxCo3-xO4/BiVO4 coupling system to construct a ternary composite photoanode Co2AlO4/MgO/BiVO4. The photocurrent density of the electrode is 3.52 mA cm-2, which is 3.2 times that of BiVO4 (at 1.23 V vs. RHE). The photocurrent is practically increased by 0.86 mA cm-2 and 1.56 mA cm-2 in comparison with that of Co2AlO4/BiVO4 and MgO/BiVO4 electrodes, respectively. Meanwhile, the Co2AlO4/MgO/BiVO4 electrode has the highest charge separation efficiency, the lowest charge transfer resistance (Rct) and best stability. The excellent PEC performance could be attributed to the inhibitive effect provided by the MgO passivation layer that efficaciously suppresses the electron-hole recombination at the interface and drives the hole transfer outward, which is induced by Co2AlO4 to capture the electrode/electrolyte interface for efficient water oxidation reaction. In order to understand the origin of this improvement, first-principles calculations with density functional theory (DFT) were performed. The theoretical investigation converges to our experimental results. This work proposes a novel idea for restraining the recombination of photogenerated carriers between interfaces and the rational design of efficient photoanodes.
Collapse
Affiliation(s)
- Jing Zhang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Kaiyi Chen
- School of Water and Environment, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Yan Bai
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
| | - Lei Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Jingwei Huang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Houde She
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Qizhao Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
- School of Water and Environment, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Chang'an University, Xi'an 710054, China
| |
Collapse
|
3
|
Wang H, Wang S, Oo MT, Yang Y, Zhou J, Huang M, Zhang RQ. Boosting the photoelectrochemical performance of bismuth vanadate photoanode through homojunction construction. J Colloid Interface Sci 2023; 646:687-694. [PMID: 37229986 DOI: 10.1016/j.jcis.2023.05.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/03/2023] [Accepted: 05/14/2023] [Indexed: 05/27/2023]
Abstract
The photoelectrochemical (PEC) performance of bismuth vanadate (BiVO4) suffers from sluggish charge mobility and substantial charge recombination losses due to its intrinsic defect. To rectify the problem, we developed a novel approach to prepare an n-n+ type II BVOac-BVOal homojunction with staggered band alignment. This architecture involves a built-in electric field that facilitating the electron-hole separation at the BVOac/BVOal interface. As a result, the BVOac-BVOal homojunction shows superior photocurrent density up to 3.6 mA/cm2 at 1.23 V vs. reversible hydrogen electrode (RHE) with 0.1 M sodium sulfite as the hole scavenger, which is 3 times higher than that of the single-layer BiVO4 photoanode. Unlike the previous efforts that modifying the PEC performance of BiVO4 photoanodes through incorporating heteroatoms, the highly-efficient BVOac-BVOal homojunction was achieved without incorporating any heteroatoms in this work. The remarkable PEC activity of the BVOac-BVOal homojunction highlights the tremendous importance of reducing the charge recombination rate at the interface by constructing the homojunction and offers an effective strategy to form the heteroatoms-free BiVO4 thin film as an efficient photoanode material for practical PEC applications.
Collapse
Affiliation(s)
- Haipeng Wang
- Department of Physics, City University of Hong Kong, 999077, Hong Kong Special Administrative Region
| | - Shuyun Wang
- Department of Material and Science Engineering, City University of Hong Kong, 999077, Hong Kong Special Administrative Region
| | - May Thawda Oo
- Department of Physics, City University of Hong Kong, 999077, Hong Kong Special Administrative Region
| | - Yuewen Yang
- Department of Physics, City University of Hong Kong, 999077, Hong Kong Special Administrative Region
| | - Jiasheng Zhou
- Department of Physics, City University of Hong Kong, 999077, Hong Kong Special Administrative Region
| | - Miaoyan Huang
- Shenzhen JL Computational Science and Applied Research Institute, Shenzhen 518000, China.
| | - Rui-Qin Zhang
- Department of Physics, City University of Hong Kong, 999077, Hong Kong Special Administrative Region; Shenzhen JL Computational Science and Applied Research Institute, Shenzhen 518000, China.
| |
Collapse
|
4
|
Mo Z, Miao Z, Yan P, Sun P, Wu G, Zhu X, Ding C, Zhu Q, Lei Y, Xu H. Electronic and energy level structural engineering of graphitic carbon nitride nanotubes with B and S co-doping for photocatalytic hydrogen evolution. J Colloid Interface Sci 2023; 645:525-532. [PMID: 37159994 DOI: 10.1016/j.jcis.2023.04.123] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/19/2023] [Accepted: 04/23/2023] [Indexed: 05/11/2023]
Abstract
The ideal photocatalyst used for photocatalytic water splitting requires strong light absorption, fast charge separation/transfer ability and abundant active sites. Heteroatom doping offers a promising and rational approach to optimize the photocatalytic activity. However, achieving high photocatalytic performance remains challenging if just relying on single-element doping. Herein, Boron (B) and sulfur (S) dopants are simultaneously introduced into graphitic carbon nitride (g-C3N4) nanotubes by supramolecular self-assembly strategy. The developed B and S co-doped g-C3N4 nanotubes (B,S-TCN) exhibited an outstanding photocatalytic performance in the conversion of H2O into H2 (9.321 mmol g-1h-1), and the corresponding external quantum efficiency (EQE) reached 5.3% under the irradiation of λ = 420 nm. It is well evidenced by the closely combined experimental and (density functional theory) DFT calculations: (1) the introduction of B dopants can facilitate H2O adsorption and drive interatomic electron transfer, leading to efficient water splitting reaction. (2) S dopants can stretch the VB position to promote the oxidation ability of g-C3N4, which can accelerate the consumption of holes and thus inhibit the recombination with electrons. (3) the simultaneous introduction of B and S can engineer the electronic and energy level structural of g-C3N4 for optimizing interior charge transfer. Finally, the purpose of maximizing photocatalytic performance is achieved.
Collapse
Affiliation(s)
- Zhao Mo
- School of Materials Science & Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhihuan Miao
- School of Materials Science & Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Pengcheng Yan
- School of Materials Science & Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Peipei Sun
- School of Materials Science & Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Guanyu Wu
- School of Materials Science & Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Xingwang Zhu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, PR China.
| | - Cheng Ding
- School of Environmental Science & Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Qiang Zhu
- School of Materials Science & Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Yucheng Lei
- School of Materials Science & Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China
| | - Hui Xu
- School of Materials Science & Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China.
| |
Collapse
|
5
|
Chandra P, Choudhary N, Mobin SM. The game between molecular photoredox catalysis and hydrogen: The golden age of hydrogen budge. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.112921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
6
|
Khosravi M, Mohammadi MR. Trends and progress in application of cobalt-based materials in catalytic, electrocatalytic, photocatalytic, and photoelectrocatalytic water splitting. PHOTOSYNTHESIS RESEARCH 2022; 154:329-352. [PMID: 36195743 DOI: 10.1007/s11120-022-00965-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
There has been a growing interest in water oxidation in recent two decades. Along with that, remarkable discovery of formation of a mysterious catalyst layer upon application of an anodic potential of 1.13 V vs. standard hydrogen electrode (SHE) to an inert indium tin oxide electrode immersed in phosphate buffer containing Co(II) ions by Nocera et.al, has greatly attracted researchers interest. These researches have oriented in two directions; one focuses on obtaining better understanding of the reported mysterious catalyst layer, further modification, and improved performance, and the second approach is about designing coordination complexes of cobalt and investigating their properties toward the application in water splitting. Although there have been critical debates on true catalysts that are responsible for water oxidation in homogeneous systems of coordination complexes of cobalt, and the case is not totally closed, in this short review, our focus will be mainly on recent major progress and developments in the design and the application of cobalt oxide-based materials in catalytic, electrocatalytic, photocatalytic, and photoelectrocatalytic water oxidation reaction, which have been reported since pioneering report of Nocera in 2008 (Kanan Matthew and Nocera Daniel in Science 321:1072-1075, 2008).
Collapse
Affiliation(s)
- Mehdi Khosravi
- Department of Physics, University of Sistan and Baluchestan, Zahedan, 98167-45845, Iran
| | | |
Collapse
|
7
|
Preparation of ZnCo2O4/BiVO4 Z-Scheme heterostructures to enhance photocatalytic performance in organic pollutant and antibiotic removal. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Zhang M, Arif M, Dong Y, Chen X, Liu X. Z-scheme TiO2−x@ZnIn2S4 architectures with oxygen vacancies-mediated electron transfer for enhanced catalytic activity towards degradation of persistent antibiotics. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129530] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
9
|
Wang M, Chen D, Li N, Xu Q, Li H, He J, Lu J. Ni-Co Bimetallic Hydroxide Nanosheet Arrays Anchored on Graphene for Adsorption-Induced Enhanced Photocatalytic CO 2 Reduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202960. [PMID: 35534233 DOI: 10.1002/adma.202202960] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/26/2022] [Indexed: 06/14/2023]
Abstract
Photocatalytic CO2 reduction can be implemented to use CO2 , a greenhouse gas, as a resource in an energy-saving and environmentally friendly way, in which suitable catalytic materials are required to achieve high-efficiency catalysis. Insufficient accessible active sites on the catalyst surface and inhibited electron transfer severely limit the photocatalytic performance. Therefore, porous aerogels are constructed from composites comprising different ratios of Ni-Co bimetallic hydroxide (Nix Coy ) grown on reduced graphene oxide (GR) into a hierarchical nanosheet-array structure using a facile in situ growth method. Detailed characterization shows that this structure exposes numerous active sites for enhanced adsorption-induced photocatalytic CO2 reduction. Moreover, under the synergistic effect of Ni-Co bimetallic hydroxide, the CO2 adsorption capacity as well as charge-carrier separation and transfer are excellent. As a result, the Ni7 Co3 -GR catalyst exhibits highly improved catalytic performance when compared with recently reported values, with a high CO release rate of 941.5 µmol h-1 g-1 and a selectivity of 96.3% during the photocatalytic reduction of CO2 . This work demonstrates a new strategy for designing nanocomposites with abundant active sites structures.
Collapse
Affiliation(s)
- Mengmeng Wang
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Dongyun Chen
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Najun Li
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Qingfeng Xu
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Hua Li
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Jinghui He
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Jianmei Lu
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| |
Collapse
|