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High sensitive fluorescent sensing and photocatalytic degradation performance of two-dimensional Tb-organic network. J RARE EARTH 2023. [DOI: 10.1016/j.jre.2022.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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He J, Hu J, Hu Y, Guo S, Huang Q, Li Y, Zhou G, Gui T, Hu N, Chen X. Hierarchical S-Scheme Heterostructure of CdIn 2S 4@UiO-66-NH 2 toward Synchronously Boosting Photocatalytic Removal of Cr(VI) and Tetracycline. Inorg Chem 2022; 61:19961-19973. [PMID: 36417671 DOI: 10.1021/acs.inorgchem.2c03240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Developing highly efficient photocatalysts toward synchronously removing heavy metals and organic pollutants is still a serious challenge. Herein, we depict hierarchical S-scheme heterostructured photocatalysts prepared via in situ anchoring UiO-66-NH2 nanoparticles onto the CdIn2S4 porous microsphere structures assembled with numerous nanosheets. In the mixed system of Cr(VI) and tetracycline (TC), the optimal photocatalyst (CIS@U66N-30) shows remarkable photocatalytic activities toward the synchronous removal of Cr(VI) (97.26%) and TC (close to 100% of) under visible-light irradiation for 60 min, being the best removal rates among those of the reported photocatalysts, and sustains the outstanding stability and reusability. Its reaction rate constants of Cr(VI) reduction and TC degradation are about 2.06 and 1.58 folds that in the single Cr(VI) and TC systems, respectively. The enhanced photocatalytic activities of CIS@U66N-30 mainly result from the following synergism: (1) its hierarchical structure offers abundant active sites, and the S-scheme migration mechanism of charge carriers in the heterostructure accelerates the separation and migration of the useful photoinduced electrons and holes with the high redox capability; (2) Cr(VI) and TC can serve as the electron scavenger for TC oxidation degradation and the hole and •OH scavenger for Cr(VI) reduction, respectively, further enhancing the separation and utilization efficiency of photoinduced electrons and holes. Besides, the possible TC degradation pathway and plausible S-scheme photocatalytic mechanism over CIS@U66N-30 for the concurrent elimination of Cr(VI) and TC are proposed.
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Affiliation(s)
- Jiale He
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jianqiang Hu
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.,Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang 330022, P. R. China.,National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Yingfei Hu
- School of Materials Engineering, Jinling Institute of Technology, Nanjing 211169, P. R. China
| | - Shien Guo
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Qingling Huang
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Yuqin Li
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Guobing Zhou
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Tian Gui
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Na Hu
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Xiangshu Chen
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
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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] [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.
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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
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