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Chen B, Hou Y, Li H, Gao H, Fu H, Liao F, Zhang J, Liao Y. Self-sacrificed BiOBr template-assisted synthesis of α-Bi 2O 3/Bi 3O 4Br heterojunctions with oxygen vacancies for enhanced photocatalytic nitrogen fixation. J Colloid Interface Sci 2023; 652:1857-1866. [PMID: 37688932 DOI: 10.1016/j.jcis.2023.08.200] [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: 06/29/2023] [Revised: 08/23/2023] [Accepted: 08/31/2023] [Indexed: 09/11/2023]
Abstract
The catalytic conversion of nitrogen to ammonia is one of the most significant processes in nature and the chemical industry. However, the traditional Haber-Bosch process of ammonia synthesis consumes substantial energy and emits a large amount of carbon dioxide. The efficiency of photocatalytic N2 activation is severely limited by the lack of N2 adsorption sites and poor carrier utilization. Herein, an efficient α-Bi2O3/Bi3O4Br heterojunction is proposed with a photocatalytic nitrogen fixation activity of 238.67 μmol·g-1·h-1. Compared with the BiOBr precursor, α-Bi2O3 and Bi3O4Br, the α-Bi2O3/Bi3O4Br heterojunction with oxygen vacancies can improve the adsorption and activation capacity of N2 and promote the separation efficiency of charge carrier pairs by accommodating photogenerated electrons under visible light through the mechanism of N-type semiconductors. Therefore, oxygen vacancies and heterojunction engineering of semiconductive nanomaterials provide a promising method for the rational design of photocatalysts to enhance the rate of ammonia synthesis under mild conditions.
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Affiliation(s)
- Bowen Chen
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
| | - Yuanwen Hou
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
| | - Hanke Li
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Hejun Gao
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
| | - Hongquan Fu
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China.
| | - Fang Liao
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China.
| | - Juan Zhang
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China.
| | - Yunwen Liao
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
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2
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Ma Z, Li X, Fan G, Deng L, He Y. Construction of 3D sheet-packed hierarchical MoS 2/BiOBr heterostructures with remarkably enhanced photocatalytic performance for tetracycline and levofloxacin degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:59737-59748. [PMID: 37016255 DOI: 10.1007/s11356-023-26740-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 03/27/2023] [Indexed: 05/10/2023]
Abstract
In this paper, MoS2 nanosheets were prepared and deposited on BiOBr microflowers through deposition-hydrothermal strategy. MoS2 exhibited a string of nanosheets with wrinkled layer outlook, and MoS2/BiOBr composites displayed a micro-flower morphology with the diameter of 2-3 μm. Visible-light harvesting performance was significantly improved in the region of 400-600 nm for MoS2/BiOBr. The obtained MoS2/BiOBr samples exhibited tremendous enhanced catalytic activity, which could degrade 92.96% of tetracycline and 90.31% of levofloxacin within 70 min. The photo-generated holes and ⋅OH radicals played the dominant roles in the whole photocatalytic decomposition process. Based on the analysis of DRS, BET, PL, and electrochemical results, the remarkably improved photocatalytic performance may be ascribed to the synergistic effect of strong visible-light harvesting ability, enhanced BET surface area, and faster separation or transfer efficiency of photo-generated charges.
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Affiliation(s)
- Zhanying Ma
- Department of Chemistry, Xianyang Normal University, Xianyang, 712000, China
| | - Xiaobo Li
- Department of Chemistry, Xianyang Normal University, Xianyang, 712000, China
| | - Guang Fan
- Department of Chemistry, Xianyang Normal University, Xianyang, 712000, China
| | - Lingjuan Deng
- Department of Chemistry, Xianyang Normal University, Xianyang, 712000, China
| | - Yangqing He
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, 710048, China.
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3
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Arumugam S, Bavani T, Preeyanghaa M, Alaswad SO, Neppolian B, Madhavan J, Murugesan S. A facile synthesis of visible light driven Ni 3V 2O 8 nano-cube/BiVO 4 nanorod composite photocatalyst with enhanced photocatalytic activity towards degradation of acid orange 7. CHEMOSPHERE 2022; 308:136100. [PMID: 36064027 DOI: 10.1016/j.chemosphere.2022.136100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 08/10/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Photocatalysis is one of the promising method to degrade harmful organic pollutants under visible light exposure. In this work, a novel Ni3V2O8/BiVO4 nanocomposite has been prepared by one-pot hydrothermal method, and investigated through X-ray diffraction, FT-IR, UV-visible diffuse reflectance spectroscopy, scanning and transmission electron microscopy and photoluminescence techniques. Subsequently, the photocatalytic performance of Ni3V2O8/BiVO4 nanocomposite has been examined by degrading AO7 under visible light illumination. The photocatalytic efficiency of the optimized 1:2 ratio of Ni3V2O8/BiVO4 nanocomposite photocatalyst is found to be 87% with a rate constant value of 0.03387 min-1 which are higher than those of other prepared photocatalysts. This nanocomposite exhibits excellent stability even after 3 three cycles, and shows 1.135- and 1.17-times higher photocurrent intensity than pure BiVO4 and Ni3V2O8 respectively. The mechanism for the degradation of AO7 over Ni3V2O8/BiVO4 nanocomposite photocatalyst has been proposed.
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Affiliation(s)
- Swaminathan Arumugam
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Thirugnanam Bavani
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Mani Preeyanghaa
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, Chennai, India
| | - Saleh O Alaswad
- Nuclear Science Research Institute (NSRI), King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Bernaurdshaw Neppolian
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, 603203, Chennai, India
| | - Jagannathan Madhavan
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India.
| | - Sepperumal Murugesan
- Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625021, India
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Vahabirad S, Nezamzadeh-Ejhieh A, Mirmohammadi M. The coupled BiOI/(BiO)2CO3 catalyst: Brief characterization, and study of its photocatalytic kinetics. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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5
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Lu C, Yin Y, Zhou H. Construction of oxygen vacancy enriched Bi2MoO6/BiFeWO6 heterojunction for efficient degradation of organic pollutants. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Zhao H, Yu Z, Wu R, Yi M, Zhang G, Zhou Y, Han Z, Li X, Ma F. Enhanced performance for Rhodamine B degradation over
SnO
2
/
BiOBr
photocatalyst. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hong‐jian Zhao
- Department of Chemistry and Chemical Engineering NingXia Normal University Guyuan People's Republic of China
| | - Zhe Yu
- Department of Chemistry and Chemical Engineering NingXia Normal University Guyuan People's Republic of China
| | - Ren‐Jang Wu
- Department of Applied Chemistry Providence University Taichung City Taiwan, ROC
| | - Ming Yi
- Department of Chemistry and Chemical Engineering NingXia Normal University Guyuan People's Republic of China
| | - Guang‐hong Zhang
- Department of Chemistry and Chemical Engineering NingXia Normal University Guyuan People's Republic of China
| | - Yan Zhou
- Department of Chemistry and Chemical Engineering NingXia Normal University Guyuan People's Republic of China
| | - Zheng‐bing Han
- Department of Chemistry and Chemical Engineering NingXia Normal University Guyuan People's Republic of China
| | - Xu Li
- Department of Chemistry and Chemical Engineering NingXia Normal University Guyuan People's Republic of China
| | - Fu Ma
- Department of Chemistry and Chemical Engineering NingXia Normal University Guyuan People's Republic of China
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Kokilavani S, Syed A, Elgorban AM, Bahkali AH, Al-Shwaiman HA, Varma RS, Das A, Khan SS. Designing Z-scheme AgIO 4 nanorod embedded with Bi 2S 3 nanoflakes for expeditious visible light photodegradation of congo red and rhodamine B. CHEMOSPHERE 2022; 294:133755. [PMID: 35090849 DOI: 10.1016/j.chemosphere.2022.133755] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/11/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
The present study describes the enhanced photodegradation of organic pollutant dyes, congo red (CR) and rhodamine B (RhB) dyes under visible light irradiation. AgIO4 nanorods decorated on Bi2S3 nanoflakes in various proportions were synthesized via sono-chemical route wherein the deposition of varying amounts of AgIO4 on Bi2S3 plays a pivotal role in improving the photodegradation ability. The characterization of the as-synthesized nanohybrids was assessed by XRD, UV-vis DRS, PL, EIS, ESR, FT-IR, XPS, HR-TEM, FE-SEM, N2 adsorption and desorption techniques. The effect of initial CR and RhB dye concentration, reaction pH and usage of nanohybrid concentration were investigated where 30%-AgIO4/Bi2S3 exhibited excellent visible light photodegradation of 95.58% for CR and 96.11% for RhB dyes at 140 min and 100 min respectively. The superoxide (•O2-) and hydroxyl radicals (•OH) played predominant role in the photodegradation of CR and RhB which is experimentally confirmed by radical trapping experiments. Also, the photocatalysts exhibited good photo stability and excellent reusability. The TOC analysis confirmed the complete mineralization of CR and RhB dyes by the nanohybrid and the formation of possible intermediate and degradation pathway was delineated based on GC/MS analysis. The outstanding photodegradation performance were ascribed to the Z-scheme charge transfer path, which effectively promotes the separation and transfer of e-/h+ pairs, resulting in a strong redox activity of the accumulated charge to decompose organic dyes during the degradation reaction. The study suggested that the nanohybrid can be utilized for the removal of organic pollutants from the contaminated water bodies.
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Affiliation(s)
- S Kokilavani
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - Asad Syed
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ali H Bahkali
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hind A Al-Shwaiman
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Rajender S Varma
- Regional Center of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University in Olomouc, Slechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Arunava Das
- Faculty of Life Sciences, Mandsaur University, SH-31, Mhow - Neemuch By-pass Square, Rewas-Dewda Road, Mandsaur, Madhya Pradesh, India
| | - S Sudheer Khan
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
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Lu C, Zhou H. The Ag-based SPR effect drives effective degradation of organic pollutants by BiOCOOH/AgBr composites. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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