1
|
Xu L, Yu JC, Wang Y. Recent advances on bismuth oxyhalides for photocatalytic CO 2 reduction. J Environ Sci (China) 2024; 140:183-203. [PMID: 38331499 DOI: 10.1016/j.jes.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/24/2023] [Accepted: 07/01/2023] [Indexed: 02/10/2024]
Abstract
Photocatalytic conversion of CO2 into fuels such as CO, CH4, and CH3OH, is a promising approach for achieving carbon neutrality. Bismuth oxyhalides (BiOX, where X = Cl, Br, and I) are appropriate photocatalysts for this purpose due to the merits of visible-light-active, efficient charge separation, and easy-to-modify crystal structure and surface properties. For practical applications, multiple strategies have been proposed to develop high-efficiency BiOX-based photocatalysts. This review summarizes the development of different approaches to prepare BiOX-based photocatalysts for efficient CO2 reduction. In the review, the fundamentals of photocatalytic CO2 reduction are introduced. Then, several widely used modification methods for BiOX photocatalysts are systematacially discussed, including heterojunction construction, introducing oxygen vacancies (OVs), Bi-enrichment, heteroatom-doping, and morphology design. Finally, the challenges and prospects in the design of future BiOX-based photocatalysis for efficient CO2 reduction are examined.
Collapse
Affiliation(s)
- Liangpang Xu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
| | - Jimmy C Yu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China.
| | - Ying Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China.
| |
Collapse
|
2
|
Li S, Sun M, Huang X, Chen H, Zhao J, Li Z. In situ sonochemical synthesis of flower-like N-graphyne/BiOCl 0.5Br 0.5 microspheres for efficient removal of levofloxacin. Dalton Trans 2024; 53:917-931. [PMID: 38105741 DOI: 10.1039/d3dt03418f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
In this work, N-graphyne is in situ coupled with BiOCl0.5Br0.5via a facile one-step sonochemical method. To our knowledge, both the synthesis strategy for BiOCl0.5Br0.5 and the N-graphyne/BiOCl0.5Br0.5 photocatalytic system are new developments. A collection of characterization methods is adopted to detect the morphologies, structures, and electronic and optical properties. The results demonstrate that wrinkle-like N-graphyne nanosheets successfully enwind around or on flower-like BiOCl0.5Br0.5 microspheres, which are regularly assembled by BiOCl0.5Br0.5 nanosheets. Compared with pristine BiOCl0.5Br0.5, N-graphyne/BiOCl0.5Br0.5 composites exhibit superior adsorption capacity and visible-light-driven photocatalytic degradation of levofloxacin. In particular, the optimal N-graphyne amount for ameliorating the photocatalytic performance of BiOCl0.5Br0.5 is ascertained. In addition, the good stable performance for photocatalysis is confirmed by four cycling experiments. The dominant active species is confirmed to be O2˙- during photodegradation. The improved photocatalytic activity is attributed to the enhanced visible light response and the accelerated transfer/separation of photogenerated carriers by N-graphyne, which are verified using UV-vis absorption spectra, photocurrents, photopotentials, Nyquist plots, and Mott-Schottky curves. This study develops a new perspective for the synthesis and modification of BiOX solid solution, which can be used as an efficient photocatalyst.
Collapse
Affiliation(s)
- Shuyan Li
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Mingxuan Sun
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Xiangzhi Huang
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Haohao Chen
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Junjie Zhao
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Ziyang Li
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| |
Collapse
|
3
|
Wang K, He T. Plasmon photocatalytic CO 2 reduction reactions over Au particles on various substrates. Nanoscale 2023. [PMID: 37455632 DOI: 10.1039/d3nr02543h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Surface plasmonic effects have been widely used in photocatalytic reactions like CO2 conversion in the past decades. However, owing to the significant controversy in the physical processes of plasmon photocatalytic reactions and difficulty in realizing CO2 reduction, the influence mechanism of the plasmon effect on the CO2 photoreduction is still under debate. In this study, Au particles deposited on various substrates were employed to acquire insights into the plasmon photocatalytic CO2 reduction, including SiO2, n-Si, p-Si, TiO2-SiO2, TiO2-n-Si, and TiO2-p-Si. It was found that the plasmon resonant enhancement (PRE) effect of Au-SiO2 caused by the Au plasmon was stronger than that of Au-TiO2-SiO2 and Au-n-Si (Au-p-Si) in the visible-light range, while it was weaker for Au-n-Si (Au-p-Si) samples than Au-TiO2-n-Si (Au-TiO2-p-Si). The simulation results agree with the experimental conclusions. The photocatalytic results indicated that the catalytic activity of Au-n-Si (Au-p-Si) samples was lower than that of Au-TiO2-n-Si (Au-TiO2-p-Si), and Au-SiO2 was lower than Au-TiO2-SiO2 and Au-n-Si (Au-p-Si) samples, suggesting that the direct electron transfer (DET) mechanism was dominant here compared with the PRE mechanism.
Collapse
Affiliation(s)
- Kai Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tao He
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
4
|
Sun Z, Qin S, Oka D, Zhang H, Fukumura T, Matsumoto Y, Mei B. Near-Ultraviolet Light-Driven Photocathodic Activity for (001)-Oriented BiOCl Thin Films Synthesized by Mist Chemical Vapor Deposition. Inorg Chem 2023. [PMID: 37257003 DOI: 10.1021/acs.inorgchem.3c00466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Semitransparent and homogeneous bismuth oxychloride (BiOCl) thin films with (001) preferred orientation were synthesized on polycrystalline Sn:In2O3-glass substrates by mist chemical vapor deposition. The films showed photocathodic activity even under near-ultraviolet light within the band gap due to the in-gap states induced by oxygen vacancies. Higher synthesis temperatures resulted in a significant increase of photocurrent density under ultraviolet light. While the longer lifetime of photocarriers led to an increase of internal quantum efficiency, the larger band-edge absorption significantly contributed to the higher external quantum efficiency.
Collapse
Affiliation(s)
- Zaichun Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Shaoyong Qin
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China
| | - Daichi Oka
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Huijuan Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Tomoteru Fukumura
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
- Advanced Institute for Materials Research and Core Research Cluster, Tohoku University, Sendai 980-8577, Japan
| | - Yuji Matsumoto
- Department of Applied Chemistry, School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Bingchu Mei
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| |
Collapse
|
5
|
Zhao W, Wang H, Wang H, Zhang D, Wang Q, Zhong Q, Shang D. Construction of a TiO 2/BiOCl heterojunction for enhanced solar photocatalytic oxidation of nitric oxide. Dalton Trans 2023; 52:4862-4872. [PMID: 36942463 DOI: 10.1039/d3dt00082f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
TiO2/BiOCl heterojunction photocatalysts with different molar ratios (Ti : Bi) were synthesized by a simple solvothermal method. Various spectroscopic techniques including X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), nitrogen adsorption-desorption, X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) and UV-Vis diffuse reflectance spectroscopy (UV-vis DRS) were used to characterize the prepared photocatalysts. The photocatalytic activity of the catalysts was investigated by removing low concentrations of nitrogen oxides. The characterization results show that the TiO2/BiOCl composite photocatalyst exhibits superior visible light response performance than pure BiOCl and TiO2. The optimized TiO2/BiOCl heterojunction with a Ti : Bi molar ratio of 4 : 1 has the best photocatalytic performance. The removal rate of nitrogen oxides of the composite photocatalyst can reach 75%, which is 2.34 times higher than that of pure BiOCl. The observed photocatalytic degradation activity of nitrogen oxides outperforms current state-of-the-art functional photocatalysts. The TiO2/BiOCl composite photocatalyst has a larger specific surface area, stronger visible light absorption and higher charge separation efficiency compared to other control samples, which contribute to the enhanced photocatalytic activity. The experimental results indicate that the combination of TiO2 with BiOCl is a promising technique to design visible light-responsive photocatalysts.
Collapse
Affiliation(s)
- Wei Zhao
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang 212013, P.R. China.
| | - Huixian Wang
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang 212013, P.R. China.
| | - Haiwen Wang
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang 212013, P.R. China.
| | - Dingwen Zhang
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang 212013, P.R. China.
| | - Qian Wang
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang 212013, P.R. China.
| | - Qin Zhong
- Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Danhong Shang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212013, PR China
| |
Collapse
|
6
|
Liao H, Ran Y, Zhong J, Li J, Li M, Yang H. Panax notoginseng powder -assisted preparation of carbon-quantum-dots/BiOCl with enriched oxygen vacancies and boosted photocatalytic performance. Environ Res 2022; 215:114366. [PMID: 36155155 DOI: 10.1016/j.envres.2022.114366] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/03/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Low activity of photocatalysts is a serious bottleneck to the practical application of photocatalytic technology. In this paper, a series of BiOCl composite photocatalysts containing carbon quantum dots (CQDs) were successfully prepared by adding Panax notoginseng powder (PNP) to the solvothermal synthesis system of BiOCl as a template agent and a raw material for 0D CQDs. CQDs/BiOCl exhibit 2D flake structures and 3D flower-like microspheres self-assembled from thin flakes, holding rich oxygen vacancies (OVs). After detailed characterization, it was found that the amount of OVs on BiOCl could be regulated according to the amount of PNP added. The CQDs/OVs-BiOCl photocatalysts exhibit higher photogenerated charge separation efficiency and photocatalytic activity than the bare BiOCl. When the mass ratio of PNP/BiOCl is 1.0%, the photocatalyst demonstrates the maximum degradation activity for rhodamine B (RhB) and perfluorooctanoic acid (PFOA). In view of the solid observations, a photocatalytic enhancement mechanism of CQDs/BiOCl was elucidated.
Collapse
Affiliation(s)
- Hongru Liao
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Yu Ran
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Junbo Zhong
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China.
| | - Jianzhang Li
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Minjiao Li
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Hao Yang
- Sichuan Tianren Chemical Engineering Co. Ltd., Chengdu, 610031, PR China
| |
Collapse
|
7
|
Liu G, Wang L, Wang B, Zhu X, Yang J, Liu P, Zhu W, Chen Z, Xia J. Synchronous activation of Ag nanoparticles and BiOBr for boosting solar-driven CO2 reduction. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
8
|
Su C, Cheng M, Tian F, Chen F, Chen R. Anti-oil-fouling Au/BiOCl coating for visible light-driven photocatalytic inactivation of bacteria. J Colloid Interface Sci 2022; 628:955-967. [PMID: 36037717 DOI: 10.1016/j.jcis.2022.08.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/03/2022] [Accepted: 08/13/2022] [Indexed: 11/18/2022]
Abstract
In this work, gold/bismuth oxychloride (Au/BiOCl) nanocomposites with different morphologies were successfully prepared by simple solvothermal method and sodium borohydride reduction method, which exhibited significantly efficient visible-light-driven photocatalytic disinfection for Staphylococcus aureus (S.aureus). Particularly, the flower-like Au/BiOCl nanocomposite showed the highest photocatalytic bactericidal performance among the prepared Au/BiOCl samples. The radical trapping experiments revealed that the hole was the main reactive species responsible for the inactivation of S.aureus over Au/BiOCl composite. The enhanced photocatalytic bactericidal effect could be attributed to the enhanced adsorption intensity of visible light that originated from the surface plasmon resonance (SPR) effect of Au, rapid transfer and space transport of hot electrons caused by the hierarchical structure of BiOCl layered compound. Furthermore, the Au/BiOCl coating prepared on stainless steel wire mesh via in-situ synthesis method exhibited excellent superhydrophilic/underwater superoleophobic performance, which endowed the coating with anti-oil-fouling in water. More importantly, compared with Au/BiOCl powder catalyst, the prepared Au/BiOCl coating with anti-oil-fouling also possessed high photocatalytic bactericidal activity and stable recycling performance.
Collapse
Affiliation(s)
- Chunping Su
- School of Chemistry and Environmental Engineering and Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan 430205, PR China
| | - Mengxi Cheng
- School of Chemistry and Environmental Engineering and Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan 430205, PR China
| | - Fan Tian
- School of Chemistry and Environmental Engineering and Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan 430205, PR China
| | - Fengxi Chen
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, PR China
| | - Rong Chen
- School of Chemistry and Environmental Engineering and Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan 430205, PR China; State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, PR China; Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450002, PR China.
| |
Collapse
|
9
|
Fan Y, Wang Z, Ren W, Liu G, Xing J, Xiao T, Li W, Li Y, Yu P, Ning C, Song Z. Space-Confined Synthesis of Thin Polypyrrole Nanosheets in Layered Bismuth Oxychloride for a Photoresponse Antibacterial within the Near-Infrared Window and Accelerated Wound Healing. ACS Appl Mater Interfaces 2022; 14:36966-36979. [PMID: 35921222 DOI: 10.1021/acsami.2c11503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Bacterial infection greatly affects the rate of wound healing. Both photothermal and photodynamic antibacterial therapies activated by near-infrared (NIR) light with semiconductor nanomedicine are two effective approaches to address bacterial infections, but they cannot coexist synergistically to kill bacteria more efficiently because of the limitation of the band structure. Here, inspired by the natural core-shell structure and photosynthesis simultaneously, polypyrrole (PPy) is synthesized in the two-dimensional restricted area of the layered bismuth oxychloride (BiOCl) nanosheets through the in situ ultrasonic recombination method. The atomic-level interface contact and bonding formed in the PPy-BiOCl intercalated nanosheets not only improve the light-to-heat conversion capabilities of PPy but also promote the transmission of PPy photogenerated charge carriers to the BiOCl semiconductor. The nanocomposites take advantage of the deeper tissue penetration under NIR light irradiation and exhibit excellent photothermal and photodynamic synergistic antibacterial activity. In addition, PPy-BiOCl intercalated nanosheets have good biocompatibility and accelerate wound healing through their antimicrobial activity and skin repair function. The space-confined synthesis of thin PPy nanosheets in layered structures offers an efficient NIR photoresponsive nanomedicine for the treatment of pathogen infection, with promising applications in infected wound healing.
Collapse
Affiliation(s)
- Youzhun Fan
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Zhengao Wang
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Weizhou Ren
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Guangyu Liu
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Jun Xing
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Taizhong Xiao
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Wei Li
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Yongjin Li
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Peng Yu
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Chengyun Ning
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
- China-Singapore International Joint Research Institute, Guangzhou 510000, China
| | - Zhiguo Song
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| |
Collapse
|
10
|
Hu L, Ding Z, Yan F, Li K, Feng L, Wang H. Construction of Hexagonal Prism-like Defective BiOCL Hierarchitecture for Photocatalytic Degradation of Tetracycline Hydrochloride. Nanomaterials (Basel) 2022; 12:2700. [PMID: 35957131 PMCID: PMC9370337 DOI: 10.3390/nano12152700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/01/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Oxygen vacancy manipulation and hierarchical morphology construction in oxygen-containing semiconductors have been demonstrated to be effective strategies for developing high efficiency photocatalysts. In most studies of bismuth-based photocatalysts, hierarchical morphology and crystal defects are achieved separately, so the catalysts are not able to benefit from both features. Herein, using boiling ethylene glycol as the treatment solution, we developed an etching-recrystallization method for the fabrication of 3D hierarchical defective BiOCl at ambient pressure. The target hierarchical 3D-BiOCl is composed of self-assembled BiOCl nanosheets, which exhibit a hexagonal prism-like morphology on a micron scale, while simultaneously containing numerous oxygen vacancies within the crystal structure. Consequently, the target catalyst was endowed with a higher specific surface area, greater light harvesting capability, as well as more efficient separation and transfer of photo-excited charges than pristine BiOCl. As a result, 3D-BiOCl presented an impressive photocatalytic activity for the degradation of tetracycline hydrochloride in both visible light and natural white light emitting diode (LED) irradiation. Moreover, an extraordinary recycling property was demonstrated for the target photocatalyst thanks to its hierarchical structure. This study outlines a simple and energy-efficient approach for producing high-performance hierarchically defective BiOCl, which may also open up new possibilities for the morphological and crystal structural defect regulation of other Bi-based photocatalysts.
Collapse
Affiliation(s)
- Lijun Hu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, China
| | - Zhichao Ding
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, China
| | - Fei Yan
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, China
| | - Kuan Li
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, China
| | - Li Feng
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Hongqing Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, China
| |
Collapse
|
11
|
Vinoth S, Ong WJ, Pandikumar A. Defect engineering of BiOX (X = Cl, Br, I) based photocatalysts for energy and environmental applications: Current progress and future perspectives. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214541] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
12
|
Wang X, Li X, Wang X, Zhao M, Chen W, Wu H, Jia J. Immobilization of bismuth oxychloride on cellulose nanocrystal for sunlight-driven superior photosensitized degradation. Int J Biol Macromol 2022; 206:398-408. [PMID: 35245571 DOI: 10.1016/j.ijbiomac.2022.02.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/29/2022] [Accepted: 02/25/2022] [Indexed: 11/16/2022]
Abstract
Semiconductor photocatalysis is considered to be an important green technology for sewage treatment. However, most of the pollutant degradation studies used simulated sunlight in a laboratory, which has great energy cost with limited applications in industry. Herein, cellulose nanocrystal (CNC) with rich hydroxyl groups and high specific surface area are used as the matrix to construct composites with BiOCl, which improves the dispersibility with an increased number of oxygen vacancies on BiOCl. The obtained composite photocatalyst, i.e., BiOCl/CNC, showed an excellent performance with good recyclability. Within 30 min, 99% of RhB (20 mg/L) was degraded under simulated visible light and 94% under natural sunlight. The reaction system maintains excellent catalytic performance after being scaled up by 10×. Compared with reported BiOCl-based composites in literature, BiOCl/CNC had excellent photocatalytic activity for the RhB degradation with good recyclability. Subsequently, by identifying the active species, a reasonable photocatalytic mechanism was proposed for RhB degradation. This work developed an economical and effective visible light sensitive photocatalyst for the treatment of organic dyes in water.
Collapse
Affiliation(s)
- Xiaoxia Wang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China; Department of Chemistry, Changzhi University, Changzhi 046011, PR China
| | - Xueting Li
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China
| | - Xinyu Wang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China
| | - Man Zhao
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China
| | - Wenwen Chen
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China.
| | - Haishun Wu
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China
| | - Jianfeng Jia
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China.
| |
Collapse
|
13
|
Wang Y, Zhao J, Liu Y, Liu G, Ding S, Li Y, Xia J, Li H. Synergy between plasmonic and sites on gold nanoparticle-modified bismuth-rich bismuth oxybromide nanotubes for the efficient photocatalytic CC coupling synthesis of ethane. J Colloid Interface Sci 2022; 616:649-658. [PMID: 35245792 DOI: 10.1016/j.jcis.2022.02.109] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 11/16/2022]
Abstract
The photocatalytic reduction of carbon dioxide (CO2) to fossil fuels has attracted widespread attention. However, obtaining the high value-added hydrocarbons, especially C2+ products, remains a considerable challenge. Herein, gold (Au) nanoparticle-modified bismuth-rich bismuth oxybromide Bi12O17Br2 nanotube composites were designed and tested. Au nanoparticles act as electron traps and thermal electron donors that promote the efficient separation and migration of carriers to form the C2+ product. As a result, compared with the pure Bi12O17Br2 nanotubes, Au@Bi12O17Br2 composites can not only produce the carbon monoxide (CO) and methane (CH4), but also covert CO2 into ethane (C2H6). In this study, Au@Bi12O17Br2-700 was used to obtain a C2H6 production rate of 29.26 μmol h-1 g-1. The selectivities during a 5-hour test reached 94.86% for hydrocarbons and 90.81% for C2H6. The proposed approach could be used to design high-performance photocatalysts to convert CO2 into high value-added hydrocarbon products.
Collapse
Affiliation(s)
- Yu Wang
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, P. R. China
| | - Junze Zhao
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, P. R. China
| | - Yunmiao Liu
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, P. R. China
| | - Gaopeng Liu
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, P. R. China
| | - Shunmin Ding
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Yingjie Li
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, P. R. China
| | - Jiexiang Xia
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, P. R. China.
| | - Huaming Li
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, P. R. China.
| |
Collapse
|
14
|
Liao H, Liu C, Zhong J, Li J. Fabrication of BiOCl with adjustable oxygen vacancies and greatly elevated photocatalytic activity by using bamboo fiber surface embellishment. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127892] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
15
|
Xu Z, Zhang C, Zhang Y, Gu Y, An Y. BiOCl-based photocatalysts: synthesis methods, structure, property, application, and perspective. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109277] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
16
|
Wang X, Li X, Tian B, Xiao H, Chen W, Wu H, Jia J. Immobilization of bismuth oxychloride on cellulose nanocrystal for photocatalytic sulfonylation of arylacetylenic acids with sodium sulfinates under visible light. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103708] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
|
17
|
Huang Z, Wu J, Ma M, Wang J, Wu S, Hu X, Yuan C, Zhou Y. The selective production of CH 4via photocatalytic CO 2 reduction over Pd-modified BiOCl. NEW J CHEM 2022. [DOI: 10.1039/d2nj02725a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The selective production of CH4via photocatalytic CO2 reduction was achieved over Pd-modified BiOCl.
Collapse
Affiliation(s)
- Zeai Huang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China
- Institute of Carbon Neutrality & School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Jundao Wu
- Institute of Carbon Neutrality & School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Minzhi Ma
- Institute of Carbon Neutrality & School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Junbu Wang
- Institute of Carbon Neutrality & School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Shuqi Wu
- Institute of Carbon Neutrality & School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Xiaoyun Hu
- Institute of Carbon Neutrality & School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Chengdong Yuan
- Department of Petroleum Engineering, Kazan Federal University, Kazan, 420008, Russia
| | - Ying Zhou
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China
- Institute of Carbon Neutrality & School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| |
Collapse
|
18
|
Lia JH, Liu RH, Ning M, Li YL, Liu Y, Liu X, Khangale P, Hildebrandt D, Wang XJ, Li FT. Insight into the relationship between redox ability and separation efficiency via the case of α-Bi 2O 3/Bi 5NO 3O 7. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00731b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
α-Bi2O3/Bi5NO3O7 heterojunctions are constructed, and show higher separation efficiency but lower photocatalytic activity. The reasons are related to the shift of energy band positions.
Collapse
Affiliation(s)
- Jie-hao Lia
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Rui-hong Liu
- International Joint Laboratory of New Energy, Hebei University of Science and Technology, Shijiazhuang 050018, China
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Meng Ning
- International Joint Laboratory of New Energy, Hebei University of Science and Technology, Shijiazhuang 050018, China
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Yi-lei Li
- International Joint Laboratory of New Energy, Hebei University of Science and Technology, Shijiazhuang 050018, China
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Ying Liu
- International Joint Laboratory of New Energy, Hebei University of Science and Technology, Shijiazhuang 050018, China
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xinying Liu
- Institute for the Development of Energy for African Sustainability (IDEAS), University of South Africa (UNISA), Florida 1710, South Africa
| | - Phathutshedzo Khangale
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Diane Hildebrandt
- African Energy Leadership Centre, WITS Business School & Molecular Science Institute, School of Chemistry, University of Witwatersrand, Johannesburg, 2050, South Africa
| | - Xiao-jing Wang
- International Joint Laboratory of New Energy, Hebei University of Science and Technology, Shijiazhuang 050018, China
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Fa-tang Li
- International Joint Laboratory of New Energy, Hebei University of Science and Technology, Shijiazhuang 050018, China
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
| |
Collapse
|
19
|
Wang M, Wang B, Xie B, Li N, Xu Q, Li H, He J, Chen D, Lu J. Ultrathin Two-Dimensional BiOCl with Oxygen Vacancies Anchored in Three-Dimensional Porous g-C3N4 to Construct a Hierarchical Z-Scheme Heterojunction for the Photocatalytic Degradation of NO. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c04155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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
| | - Beibei 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
| | - Bingke Xie
- 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
| | - 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
| | - 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
|
20
|
Li D, Li L, Zhao M, Yang J, Wang Y, Xu X, Ge S, Fa W, Zheng Z. Exploring the activation pathway of photo-induced electrons in facets-dependent I -doped BiOCl nanosheets for PCPNa degradation. Nanotechnology 2021; 32:495707. [PMID: 34450603 DOI: 10.1088/1361-6528/ac21f3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Electrons can degrade pentachlorphenate sodium (PCPNa) directly or activate molecular oxygen to produce·O2-and ·OH for its degradation. However, less work has been performed to control such two kinds of reaction pathway by modifying BiOCl. Herein, we firstly regulated the reaction pathway between electrons and PCPNa by adjusting the amount of surface oxygen vacancies (OVs) and surface adsorbed hydroxyl groups in I-doped BiOCl exposed with different facets. OVs on (001) facets-exposed I-doped BiOCl enabled large amount of PCPNa to adsorb on its surface and facilitated the direct reaction between electrons and PCPNa. In contrary, more surface adsorbed hydroxyl groups and oxygen on (010) facets-exposed I-doped BiOCl can retard the direct reaction between electrons and PCPNa via lowering the adsorption of PCPNa and increasing the activation of molecular oxygen by electrons. Although more·O2-and ·OH generated in I-doped (010)-facets exposed BiOCl, I-doped (001)-facets exposed BiOCl exhibited better photocatalytic activity. We proposed that the direct reaction between electrons and PCPNa can enhance the utilization efficiency of photogenerated electrons and improve photocatalytic degradation efficiency of PCPNa.
Collapse
Affiliation(s)
- Dapeng Li
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| | - Luqi Li
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| | - Mingyue Zhao
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| | - Jingming Yang
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| | - Yafei Wang
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| | - Xuefeng Xu
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| | - Suxiang Ge
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| | - Wenjun Fa
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| | - Zhi Zheng
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, People's Republic of China
| |
Collapse
|
21
|
Qi R, Liu J, Yuan H, Yu Y. Sulfur-Doped BiOCl with Enhanced Light Absorption and Photocatalytic Water Oxidation Activity. Nanomaterials (Basel) 2021; 11:2221. [PMID: 34578537 PMCID: PMC8472310 DOI: 10.3390/nano11092221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/23/2021] [Accepted: 08/26/2021] [Indexed: 11/17/2022]
Abstract
Photocatalysis is a powerful strategy to address energy and environmental concerns. Sulfur-doped BiOCl was prepared through a facial hydrothermal method to improve the photocatalytic performance. Experimental results and theoretical calculations demonstrated that the band structure of the sulfur-doped BiOCl was optimally regulated and the light absorption range was expanded. It showed excellent visible-light photocatalytic water oxidation properties with a rate of 141.7 μmol h-1 g-1 (almost 44 times of that of the commercial BiOCl) with Pt as co-catalyst.
Collapse
Affiliation(s)
- Ruilian Qi
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China;
| | - Jian Liu
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100090, China;
| | - Huanxiang Yuan
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China;
| | - Yu Yu
- School of Science, Beijing Jiaotong University, Beijing 100044, China
| |
Collapse
|
22
|
Zhou C, Shi X, Li D, Song Q, Zhou Y, Jiang D, Shi W. Oxygen vacancy engineering of BiOBr/HNb 3O 8 Z-scheme hybrid photocatalyst for boosting photocatalytic conversion of CO 2. J Colloid Interface Sci 2021; 599:245-254. [PMID: 33945971 DOI: 10.1016/j.jcis.2021.04.064] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 12/22/2022]
Abstract
Photo-chemical conversion of CO2 into solar fuels by photocatalysts is a promising and sustainable strategy in response to the ever-increasing environmental problems and imminent energy crisis. However, it is unavoidably impeded by the insufficient active site, undesirable inert charge transfer and fast recombination of photogenerated charge carriers on semiconductor photocatalysts. In this work, all these challenges are overcome by construction of a novel defect-engineered Z-scheme hybrid photocatalyst, which is comprised of three-dimensional (3D) BiOBr nanoflowers assembled by nanosheets with abundant oxygen vacancies (BiOBr-VO) and two-dimensional (2D) HNb3O8 nanosheets (HNb3O8 NS). The special 3D-2D architecture structure is beneficial to preventing photocatalyst stacking and providing more active sites, and the introduced oxygen vacancies not only broaden the light absorption range but also enhance the electrical conductivity. More importantly, the constructed Z-scheme photocatalytic system could accelerate the charge carriers transfer and separation. As a result, the optimal BiOBr-VO/HNb3O8 NS (50%-BiOBr-VO/HNb3O8 NS) shows a high CO production yield of 164.6 μmol·g-1 with the selectivity achieves to 98.7% in a mild gas-solid system using water as electron donors. Moreover, the BiOBr-VO/HNb3O8 NS photocatalyst keeps high photocatalytic activity after five cycles under the identical experimental conditions, demonstrating its excellent long-term durability. This work provided an original strategy to design a new hybrid structure photocatalyst involved VOs, thus guiding a new way to further enhance CO2 reduction activity of photocatalyst.
Collapse
Affiliation(s)
- Changjian Zhou
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Xiangli Shi
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Di Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China.
| | - Qi Song
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yimeng Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Deli Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Weidong Shi
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| |
Collapse
|
23
|
Zhao J, Miao Z, Zhang Y, Wen G, Liu L, Wang X, Cao X, Wang B. Oxygen vacancy-rich hierarchical BiOBr hollow microspheres with dramatic CO 2 photoreduction activity. J Colloid Interface Sci 2021; 593:231-243. [PMID: 33744533 DOI: 10.1016/j.jcis.2021.02.117] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 11/26/2022]
Abstract
Conversion of carbon dioxide into useful chemicals has attracted great attention. However, the significant bottlenecks facing in the field are the poor conversion efficiency of CO2 and low selectivity of products. Herein, hierarchical BiOBr hollow microspheres are fabricated by a solvothermal method using ethylene glycol (EG) as solvent in presence of polyvinyl pyrrolidone (PVP). The hollow BiOBr microspheres prepared at 120 °C exhibit the best performance for CO2 photoreduction. The evolution rates of product CO and CH4 are up to 88.1 µmol g-1h-1 and 5.8 µmol g-1h-1, which are 8.8 times and 5.8 times higher than that of plate-like BiOBr respectively. The hollow microspheres possess larger specific area and generate multiple reflections of light in the cavity, thus enhancing the utilization efficiency of light. The modulated electronic structure by oxygen vacancy (OVs) is beneficial to the transfer of photogenerated electrons and holes. Especially, the enriched charge density of BiOBr by OVs is conductive to the adsorption and activation of CO2, which could lower the overall activation energy barrier of CO2 photoreduction. In summary, the synergistic effect of the hollow structure with OVs plays a vital role in boosting the photoreduction of CO2 for BiOBr. This work provides a new opportunity for designing the high efficiency catalyst by morphology engineering with defects at the atomic level for CO2 photoreduction.
Collapse
Affiliation(s)
- Jinlin Zhao
- National Experimental Chemistry Teaching Center, Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, PR China
| | - Zerui Miao
- National Experimental Chemistry Teaching Center, Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, PR China
| | - Yanfeng Zhang
- National Experimental Chemistry Teaching Center, Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, PR China.
| | - Guangyu Wen
- College of Physics, Hebei Normal University, Shijiazhuang 050024, PR China
| | - Lihu Liu
- College of Physics, Hebei Normal University, Shijiazhuang 050024, PR China.
| | - Xuxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, Fuzhou 350108, PR China.
| | - Xingzhong Cao
- Multi-discipline Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Baoyi Wang
- Multi-discipline Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
| |
Collapse
|
24
|
Dou X, Li Q, Shi H. Ag nanoparticle-decorated 2D/2D S-scheme g-C 3N 4/Bi 2WO 6 heterostructures for an efficient photocatalytic degradation of tetracycline. CrystEngComm 2021. [DOI: 10.1039/d1ce00439e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The 2D/2D S-scheme Ag–g-C3N4–Bi2WO6 composite with efficient charge transfer, displayed a remarkable degradation activity of tetracycline under visible light irradiation.
Collapse
Affiliation(s)
- Xincheng Dou
- School of Science
- Jiangnan University
- Wuxi
- P. R. China
| | - Qiaoqiao Li
- School of Science
- Jiangnan University
- Wuxi
- P. R. China
| | - Haifeng Shi
- School of Science
- Jiangnan University
- Wuxi
- P. R. China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology
| |
Collapse
|