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Wu X, Yan L, Qin R, Zhang Q, Yang W, Wang X, Zhang Y, Luo M, Hou J. Enhanced photocatalytic performance of Bi 2O 2CO 3/Bi 4O 5Br 2/reduced graphene oxide Z-schemehe terojunction via a one-pot room-temperature synthesis. J Environ Sci (China) 2024; 138:418-427. [PMID: 38135407 DOI: 10.1016/j.jes.2023.03.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 12/24/2023]
Abstract
Bi2O2CO3(BOC)/Bi4O5Br2(BOB)/reduced graphene oxide (rGO) Z-scheme heterojunction with promising photocatalytic properties was synthesized via a facile one-pot room-temperature method. Ultra-thin nanosheets of BOC and BOB were grown in situ on rGO. The formed 2D/2D direct Z-scheme heterojunction of BOC/BOB with oxygen vacancies (OVs) effectively leads to lower negative electron reduction potential of BOB as well as higher positive hole oxidation potential of BOC, showing improved reduction/oxidation ability. Particularly, rGO is an acceptor of the electrons from the conduction band of BOC. Its dual roles significantly improve the transfer performance of photo-induced charge carriers and accelerate their separation. With layered nanosheet structure, rich OVs, high specific surface area, and increased utilization efficiency of visible light, the multiple synergistic effects of BOC/BOB/rGO can achieve effective generation and separation of the electron-holes, thereby generating more •O2- and h+. The photocatalytic reduction efficiency of CO2 to CO (12.91 µmol/(g·hr)) is three times higher than that of BOC (4.18 µmol/(g·hr)). Moreover, it also achieved almost 100% removal of Rhodamine B and cyanobacterial cells within 2 hours.
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Affiliation(s)
- Xiaoge Wu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China
| | - Lei Yan
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Rongrong Qin
- Beijing Xinfeng Aerospace Equipment Co., Ltd., Beijing 100854, China
| | - Qikai Zhang
- Beijing Xinfeng Aerospace Equipment Co., Ltd., Beijing 100854, China
| | - Wei Yang
- Beijing System Design Institute of Electro-Mechanic Engineering, Beijing 100005, China
| | - Xiaozhi Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Yongcai Zhang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Min Luo
- College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Jianhua Hou
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China.
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Zong K, Chu T, Liu D, Mehmood A, Fan T, Raza W, Hussain A, Deng Y, Liu W, Saad A, Zhao J, Li Y, Aurbach D, Cai X. Bridging 1D Inorganic and Organic Synthesis to Fabricate Ultrathin Bismuth-Based Nanotubes with Controllable Size as Anode Materials for Secondary Li Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204236. [PMID: 35988142 DOI: 10.1002/smll.202204236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Indexed: 06/15/2023]
Abstract
The growth of ultrathin 1D inorganic nanomaterials with controlled diameters remains challenging by current synthetic approaches. A polymer chain templated method is developed to synthesize ultrathin Bi2 O2 CO3 nanotubes. This formation of nanotubes is a consequence of registry between the electrostatic absorption of functional groups on polymer template and the growth habit of Bi2 O2 CO3 . The bulk bismuth precursor is broken into nanoparticles and anchored onto the polymer chain periodically. These nanoparticles react with the functional groups and gradually evolve into Bi2 O2 CO3 nanotubes along the chain. 5.0 and 3.0 nm tubes with narrow diameter deviation are synthesized by using branched polyethyleneimine and polyvinylpyrrolidone as the templates, respectively. Such Bi2 O2 CO3 nanotubes show a decent lithium-ion storage capacity of around 600 mA h g-1 at 0.1 A g-1 after 500 cycles, higher than other reported bismuth oxide anode materials. More interestingly, the Bi materials developed herein still show decent capacity at very low temperatures, that is, around 330 mA h g-1 (-22 °C) and 170 mA h g-1 (-35 °C) after 75 cycles at 0.1 A g-1 , demonstrating their promising potential for practical application in extreme conditions.
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Affiliation(s)
- Kai Zong
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Tianzhi Chu
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Dongqing Liu
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Andleeb Mehmood
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Tianju Fan
- Department of Chemistry and BINA, BIU Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Waseem Raza
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Arshad Hussain
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yonggui Deng
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Wei Liu
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Ali Saad
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jie Zhao
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Ying Li
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Doron Aurbach
- Department of Chemistry and BINA, BIU Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Xingke Cai
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
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He R, Xu D, Cheng B, Yu J, Ho W. Review on nanoscale Bi-based photocatalysts. NANOSCALE HORIZONS 2018; 3:464-504. [PMID: 32254135 DOI: 10.1039/c8nh00062j] [Citation(s) in RCA: 180] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nanoscale Bi-based photocatalysts are promising candidates for visible-light-driven photocatalytic environmental remediation and energy conversion. However, the performance of bulk bismuthal semiconductors is unsatisfactory. Increasing efforts have been focused on enhancing the performance of this photocatalyst family. Many studies have reported on component adjustment, morphology control, heterojunction construction, and surface modification. Herein, recent topics in these fields, including doping, changing stoichiometry, solid solutions, ultrathin nanosheets, hierarchical and hollow architectures, conventional heterojunctions, direct Z-scheme junctions, and surface modification of conductive materials and semiconductors, are reviewed. The progress in the enhancement mechanism involving light absorption, band structure tailoring, and separation and utilization of excited carriers, is also introduced. The challenges and tendencies in the studies of nanoscale Bi-based photocatalysts are discussed and summarized.
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Affiliation(s)
- Rongan He
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
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Duan Y, Li S, Lei S, Xu Y, Zou L, Ye B. A new voltammetric sensor based on reduced graphene oxide loaded flower-like Bi 2 O 2 CO 3 film for sensitive determination of urapidil. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.04.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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