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Low BQL, Jiang W, Yang J, Zhang M, Wu X, Zhu H, Zhu H, Heng JZX, Tang KY, Wu WY, Cao X, Koh XQ, Chai CHT, Chan CY, Zhu Q, Bosman M, Zhang YW, Zhao M, Li Z, Loh XJ, Xiong Y, Ye E. 2D/2D Heterojunction of BiOBr/BiOI Nanosheets for In Situ H 2 O 2 Production and Activation toward Efficient Photocatalytic Wastewater Treatment. Small Methods 2024; 8:e2301368. [PMID: 38009516 DOI: 10.1002/smtd.202301368] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Indexed: 11/29/2023]
Abstract
The presence of toxic organic pollutants in aquatic environments poses significant threats to human health and global ecosystems. Photocatalysis that enables in situ production and activation of H2 O2 presents a promising approach for pollutant removal; however, the processes of H2 O2 production and activation potentially compete for active sites and charge carriers on the photocatalyst surface, leading to limited catalytic performance. Herein, a hierarchical 2D/2D heterojunction nanosphere composed of ultrathin BiOBr and BiOI nanosheets (BiOBr/BiOI) is developed by a one-pot microwave-assisted synthesis to achieve in situ H2 O2 production and activation for efficient photocatalytic wastewater treatment. Various experimental and characterization results reveal that the BiOBr/BiOI heterojunction facilitates efficient electron transfer from BiOBr to BiOI, enabling the one-step two-electron O2 reduction for H2 O2 production. Moreover, the ultrathin BiOI provides abundant active sites for H2 O2 adsorption, promoting in situ H2 O2 activation for •O2 - generation. As a result, the BiOBr/BiOI hybrid exhibits excellent activity for pollutant degradation with an apparent rate constant of 0.141 min-1 , which is 3.8 and 47.3 times that of pristine BiOBr and BiOI, respectively. This work expands the range of the materials suitable for in situ H2 O2 production and activation, paving the way toward sustainable environmental remediation using solar energy.
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Affiliation(s)
- Beverly Qian Ling Low
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Wenbin Jiang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Jing Yang
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Republic of Singapore
| | - Mingsheng Zhang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Xiao Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore
| | - Hui Zhu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore
| | - Houjuan Zhu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Jerry Zhi Xiong Heng
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
| | - Karen Yuanting Tang
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
| | - Wen-Ya Wu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Xun Cao
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
| | - Xue Qi Koh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Casandra Hui Teng Chai
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Chui Yu Chan
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
| | - Qiang Zhu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
| | - Michel Bosman
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Republic of Singapore
| | - Yong-Wei Zhang
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Republic of Singapore
| | - Ming Zhao
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Republic of Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
| | - Yujie Xiong
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Enyi Ye
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
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Jiang W, Zhu H, Yang J, Low BQL, Wu W, Chen M, Ma J, Long R, Low J, Zhu H, Heng JZX, Tang KY, Chai CHT, Lin M, Zhu Q, Zhang Y, Chi D, Li Z, Loh XJ, Xiong Y, Ye E. Integration of Single-Atom Catalyst with Z-Scheme Heterojunction for Cascade Charge Transfer Enabling Highly Efficient Piezo-Photocatalysis. Adv Sci (Weinh) 2023; 10:e2303448. [PMID: 37544890 PMCID: PMC10558689 DOI: 10.1002/advs.202303448] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 07/06/2023] [Indexed: 08/08/2023]
Abstract
Piezo-assisted photocatalysis (namely, piezo-photocatalysis), which utilizes mechanical energy to modulate spatial and energy distribution of photogenerated charge carriers, presents a promising strategy for molecule activation and reactive oxygen species (ROS) generation toward applications such as environmental remediation. However, similarly to photocatalysis, piezo-photocatalysis also suffers from inferior charge separation and utilization efficiency. Herein, a Z-scheme heterojunction composed of single Ag atoms-anchored polymeric carbon nitride (Ag-PCN) and SnO2- x is developed for efficient charge carrier transfer/separation both within the catalyst and between the catalyst and surface oxygen molecules (O2 ). As revealed by charge dynamics analysis and theoretical simulations, the synergy between the single Ag atoms and the Z-scheme heterojunction initiates a cascade electron transfer from SnO2- x to Ag-PCN and then to O2 adsorbed on Ag. With ultrasound irradiation, the polarization field generated within the piezoelectric hybrid further accelerates charge transfer and regulates the O2 activation pathway. As a result, the Ag-PCN/SnO2- x catalyst efficiently activates O2 into ·O2 - , ·OH, and H2 O2 under co-excitation of visible light and ultrasound, which are consequently utilized to trigger aerobic degradation of refractory antibiotic pollutants. This work provides a promising strategy to maneuver charge transfer dynamics for efficient piezo-photocatalysis by integrating single-atom catalysts (SACs) with Z-scheme heterojunction.
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Affiliation(s)
- Wenbin Jiang
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Hui Zhu
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Republic of Singapore
| | - Jing Yang
- Institute of High Performance Computing (IHPC)Agency for Science, Technology and Research (A*STAR)1 Fusionopolis Way, #16‐16 ConnexisSingapore138632Republic of Singapore
| | - Beverly Qian Ling Low
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Wen‐Ya Wu
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Mingxi Chen
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Jun Ma
- School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhui230026P. R. China
| | - Ran Long
- School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhui230026P. R. China
| | - Jingxiang Low
- School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhui230026P. R. China
| | - Houjuan Zhu
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Jerry Zhi Xiong Heng
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Karen Yuanting Tang
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Casandra Hui Teng Chai
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Ming Lin
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Qiang Zhu
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Yong‐Wei Zhang
- Institute of High Performance Computing (IHPC)Agency for Science, Technology and Research (A*STAR)1 Fusionopolis Way, #16‐16 ConnexisSingapore138632Republic of Singapore
| | - Dongzhi Chi
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2)Agency for Science, Technology and Research (A*STAR)1 Pesek Road, Jurong IslandSingapore627833Republic of Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2)Agency for Science, Technology and Research (A*STAR)1 Pesek Road, Jurong IslandSingapore627833Republic of Singapore
| | - Yujie Xiong
- School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhui230026P. R. China
| | - Enyi Ye
- Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR)2 Fusionopolis Way, Innovis #08‐03Singapore138634Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2)Agency for Science, Technology and Research (A*STAR)1 Pesek Road, Jurong IslandSingapore627833Republic of Singapore
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Jiang W, Low BQL, Long R, Low J, Loh H, Tang KY, Chai CHT, Zhu H, Zhu H, Li Z, Loh XJ, Xiong Y, Ye E. Active Site Engineering on Plasmonic Nanostructures for Efficient Photocatalysis. ACS Nano 2023; 17:4193-4229. [PMID: 36802513 DOI: 10.1021/acsnano.2c12314] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Plasmonic nanostructures have shown immense potential in photocatalysis because of their distinct photochemical properties associated with tunable photoresponses and strong light-matter interactions. The introduction of highly active sites is essential to fully exploit the potential of plasmonic nanostructures in photocatalysis, considering the inferior intrinsic activities of typical plasmonic metals. This review focuses on active site-engineered plasmonic nanostructures with enhanced photocatalytic performance, wherein the active sites are classified into four types (i.e., metallic sites, defect sites, ligand-grafted sites, and interface sites). The synergy between active sites and plasmonic nanostructures in photocatalysis is discussed in detail after briefly introducing the material synthesis and characterization methods. Active sites can promote the coupling of solar energy harvested by plasmonic metal to catalytic reactions in the form of local electromagnetic fields, hot carriers, and photothermal heating. Moreover, efficient energy coupling potentially regulates the reaction pathway by facilitating the excited state formation of reactants, changing the status of active sites, and creating additional active sites using photoexcited plasmonic metals. Afterward, the application of active site-engineered plasmonic nanostructures in emerging photocatalytic reactions is summarized. Finally, a summary and perspective of the existing challenges and future opportunities are presented. This review aims to deliver some insights into plasmonic photocatalysis from the perspective of active sites, expediting the discovery of high-performance plasmonic photocatalysts.
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Affiliation(s)
- Wenbin Jiang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
| | - Beverly Qian Ling Low
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
| | - Ran Long
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jingxiang Low
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hongyi Loh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
| | - Karen Yuanting Tang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
| | - Casandra Hui Teng Chai
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
| | - Houjuan Zhu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
| | - Hui Zhu
- Department of Chemistry, National University of Singapore, Singapore 117543, Republic of Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
| | - Yujie Xiong
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Enyi Ye
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore
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Tang KY, Heng JZX, Chai CHT, Chan CY, Low BQL, Chong SME, Loh HY, Li Z, Ye E, Loh XJ. Modified Bacterial Cellulose for Biomedical Applications. Chem Asian J 2022; 17:e202200598. [DOI: 10.1002/asia.202200598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/30/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Karen Yuanting Tang
- Institute of Materials Research and Engineering Strategic Research Initiative 2 Fusionopolis Way, Innovis, #08-03 138634 Singapore SINGAPORE
| | - Jerry Zhi Xiong Heng
- Institute of Materials Research and Engineering Strategic Research Initiative 2 Fusionopolis Way, Innovis, #08-03 138634 Singapore SINGAPORE
| | - Casandra Hui Teng Chai
- Institute of Materials Research and Engineering Strategic Research Initiative 2 Fusionopolis Way, Innovis, #08-03 138634 Singapore SINGAPORE
| | - Chui Yu Chan
- Institute of Materials Research and Engineering Strategic Research Initiative 2 Fusionopolis Way, Innovis, #08-03 138634 Singapore SINGAPORE
| | - Beverly Qian Ling Low
- National University of Singapore Department of Materials Science and Engineering SINGAPORE
| | - Serene Ming En Chong
- Singapore Institute of Technology Food, Chemical and Biotechnology Cluster SINGAPORE
| | - Hong Yi Loh
- Nanyang Technological University Department of Materials Science and Engineering SINGAPORE
| | - Zibiao Li
- Institute of Materials Research and Engineering Strategic Research Initiative 2 Fusionopolis Way, Innovis, #08-03 138634 Singapore SINGAPORE
| | - Enyi Ye
- Institute of Materials Research and Engineering Strategic Research Initiative 2 Fusionopolis Way, Innovis, #8-03 138634 Singapore SINGAPORE
| | - Xian Jun Loh
- Institute of Materials Research and Engineering Strategic Research Initiative 2 Fusionopolis Way, Innovis, #08-03 138634 Singapore SINGAPORE
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