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Yang Y, Guo K, Zhu M, Zhang A, Xing M, Lu Y, Bai X, Ji X, Hu Y, Liu S. Exploring Electron Transfer Mechanism in Synergistic Interactional Reduced Polyoxometalate-Based Cu(I)-Organic Framework for Photocatalytic Removal of U(VI). Inorg Chem 2024; 63:7876-7885. [PMID: 38608259 DOI: 10.1021/acs.inorgchem.4c00597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Photocatalytic reduction of U(VI) is a promising method for removing uranium containing pollutants. However, using polyoxometalate-based metal-organic frameworks (POMOFs) for photoreduction of U(VI) is rare, and the relevant charge transfer pathway is also not yet clear. In this article, we demonstrate a highly efficient strategy and revealed a clearly electron transfer pathway for the photoreduction of U(VI) with 99% removal efficiency by using a novel POMOF, [Cu(4,4'-bipy)]5·{AsMo4VMo6VIV2VO40(VIVO)[VIVO(H2O)]}·2H2O (1), as catalyst. The POMOF catalyst was constructed by the connection of reduced {AsMo10V4} clusters and Cu(I)-MOF chains through Cu-O coordination bonds, which exhibits a broader and stronger light absorption capacity due to the presence of reduced {AsMo10V4} clusters. Significantly, the transition of electrons from Cu(I)-MOF to {AsMo10V4} clusters (Cu → Mo/V) greatly inhibits the recombination of photogenerated carriers, thereby advancing electron transfer. More importantly, the {AsMo10V4} clusters are not only adsorption sites but also catalytically active sites. This causes the fast transfer of photogenerated electrons from Mo/V to UO22+(Mo/V → O → U) via the surface oxygen atoms. The shorter electron transmission distance between catalytic active sites and UO22+ achieves faster and more effective electron transport. All in all, the highly effective photocatalytic removal of U(VI) using the POMOF as a catalyst is predominantly due to the synergistic interaction between Cu(I)-MOFs and reduced {AsMo10V4} clusters.
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Affiliation(s)
- Yanli Yang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
| | - Keke Guo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
| | - Maochun Zhu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
| | - Ange Zhang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
| | - Min Xing
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
| | - Ying Lu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
| | - Xue Bai
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
| | - Xiaoying Ji
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
| | - Yingjie Hu
- Nanjing Key Laboratory of Advanced Functional Materials, Nanjing Xiaozhuang University, Nanjing, Jiangsu 211171, P. R. China
| | - Shuxia Liu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China
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Liu J, Wu J, Duan Y, Zhu K, Zheng Z, Wang J. Efficient removal of U(VI) from aqueous solution by CNN/UiO-66 under simulated sunlight irradiation: the synergy of adsorption and photocatalysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:20999-21011. [PMID: 38379044 DOI: 10.1007/s11356-024-32376-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 02/04/2024] [Indexed: 02/22/2024]
Abstract
The reduction of soluble U(VI) to insoluble and less toxic U(IV) by photocatalysis is an effective method to control uranium contamination. The graphitic carbon nitride nanosheet (CNN)/UiO-66 composites (CNNU) were prepared by thermal polymerization and solvothermal methods for the removal of U(VI). The morphology, crystal structure and optical properties of composites were analyzed by SEM, XRD, BET, UV-DRS, PL and EIS. The results showed the introduction of UiO-66 increased the specific surface of CNN from 9.07 m2/g to 46.24 m2/g, and effectively suppressed the recombination of photogenerated electrons and holes and improved the photocatalytic activity. The U(VI) removal capacity by adsorption and photocatalysis of CNNU was reached 779.47 mg/g, which significantly higher than that of adsorption (478.38 mg/g). The adsorption process was found to conform to the pseudo-second-order kinetic model and the Langmuir isothermal model. Meanwhile, U(VI) adsorbed on the CNNU was reduced to U(IV) via e- and ·O2- generated in the photocatalytic process. Therefore, this outstanding performance of CNNU in U(VI) removal is attributed to the synergistic effect of adsorption and photocatalytic reduction.
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Affiliation(s)
- Jinxiang Liu
- School of Civil Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Jiao Wu
- School of Civil Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Yi Duan
- School of Civil Engineering, University of South China, Hengyang, 421001, Hunan, China.
| | - Kaihao Zhu
- School of Civil Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Zhouhao Zheng
- School of Civil Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Jingsong Wang
- School of Civil Engineering, University of South China, Hengyang, 421001, Hunan, China
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Wang C, Liu N, Liu X, Tian Y, Jiang Q, Chen X, Hou B. Sulfur vacancy-enhanced In 2S 3-x hollow microtubes for photocatalytic Cr (VI) and tetracycline removal. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120173. [PMID: 38280249 DOI: 10.1016/j.jenvman.2024.120173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/04/2024] [Accepted: 01/20/2024] [Indexed: 01/29/2024]
Abstract
Morphological regulation and defect engineering are efficient methods for photocatalytic technology by improving photon absorption and electron dissociation. Herein, In2S3-x hollow microtubes with S-vacancies (MIS) were fabricated via a simple solvothermal reaction using In-based metal-organic frameworks (In-MOFs) as a precursor. Experimental results demonstrate that the hollow structure and optimal S-vacancies can jointly accelerate the photocatalytic reaction, attributed to a larger specific surface area, more active sites, and faster electron transfer efficiency. The champion MIS(2) displayed significantly better photocatalytic activity for Cr(VI) reduction and tetracycline (TC) degradation. The Cr(VI) reduction rate by MIS(2) is 3.67 and 2.82 times higher than those of optimal In2S3 template-free (HIS(2)) and MIS(1) with poor S-vacancies, respectively. The removal efficiency of TC by MIS(2) is 1.37 and 1.15 times higher than those of HIS(2) and MIS(1). Further integration of MIS(2) with aerogel simplifies the recovery process significantly.
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Affiliation(s)
- Chunli Wang
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Nazhen Liu
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.
| | - Xiangju Liu
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Yong Tian
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China
| | - Quantong Jiang
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.
| | - Xuwei Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Baorong Hou
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
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Yang L, Gao T, Yuan S, Dong Y, Chen Y, Wang X, Chen C, Tang L, Ohno T. Spatial charge separated two-dimensional/two-dimensional Cu-In 2S 3/CdS heterojunction for boosting photocatalytic hydrogen production. J Colloid Interface Sci 2023; 652:1503-1511. [PMID: 37659318 DOI: 10.1016/j.jcis.2023.08.149] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/11/2023] [Accepted: 08/23/2023] [Indexed: 09/04/2023]
Abstract
Two-dimensional (2D) beta indium sulfide (β-In2S3) shows great potential in photocatalytic hydrogen production due to its broad-spectrum response, relatively negative conduction band edge, high carrier mobility and low toxicity. However, the high charge recombination rate limits the application of In2S3. Here, we in-situ grew 2D cadmium sulfide (CdS) on the surface of In2S3 doped with copper ions (Cu2+) to construct a heterojunction photocatalyst that suppresses charge recombination. The in-situ grown method and shared sulfur composition were conducive to forming the efficient interface contact between In2S3 and CdS, promoting charge transfer and showing the high spatial charge separation rate, resulting in a hydrogen production rate of 868 µmol g-1h-1. The induced Cu2+ extended the light absorption range and stabilized the photocatalyst. By creating stable 2D/2D heterojunction photocatalysts with high charge separation efficiency, this work opens new possibilities for applying In2S3 materials in photocatalytic hydrogen production.
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Affiliation(s)
- Lei Yang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Tengyang Gao
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Saisai Yuan
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
| | - Ying Dong
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Yiming Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Xijuan Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Chuanxiang Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
| | - Liang Tang
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
| | - Teruhisa Ohno
- Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
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5
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Zhu W, Li X, Wang D, Fu F, Liang Y. Advanced Photocatalytic Uranium Extraction Strategies: Progress, Challenges, and Prospects. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2005. [PMID: 37446529 DOI: 10.3390/nano13132005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023]
Abstract
Nuclear energy with low carbon emission and high-energy density is considered as one of the most promising future energy sources for human beings. However, the use of nuclear energy will inevitably lead to the discharge of nuclear waste and the consumption of uranium resources. Therefore, the development of simple, efficient, and economical uranium extraction methods is of great significance for the sustainable development of nuclear energy and the restoration of the ecological environment. Photocatalytic U(VI) extraction technology as a simple, highly efficient, and low-cost strategy, received increasing attention from researchers. In this review, the development background of photocatalytic U(VI) extraction and several photocatalytic U(VI) reduction mechanisms are briefly described and the identification methods of uranium species after photocatalytic reduction are addressed. Subsequently, the modification strategies of several catalysts used for U(VI) extraction are summarized and the advantages and disadvantages of photocatalytic U(VI) extraction are compared. Additionally, the research progress of photocatalytic technology for U(VI) extraction in actual uranium-containing wastewater and seawater are evaluated. Finally, the current challenges and the developments of photocatalytic U(VI) extraction technology in the future are prospected.
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Affiliation(s)
- Wangchuan Zhu
- Research Institute of Comprehensive Energy Industry Technology, School of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, China
| | - Xiang Li
- Research Institute of Comprehensive Energy Industry Technology, School of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, China
| | - Danjun Wang
- Research Institute of Comprehensive Energy Industry Technology, School of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, China
| | - Feng Fu
- Research Institute of Comprehensive Energy Industry Technology, School of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, China
| | - Yucang Liang
- Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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Zhu J, Zeng L, Song Y, Peng F, Wang Y, He T, Deng L, Zhang P. High performance sulfur/carbon cathode for Na-S battery enabled by electrocatalytic effect of Sn-doped In 2S 3. J Colloid Interface Sci 2023:S0021-9797(23)00943-8. [PMID: 37248161 DOI: 10.1016/j.jcis.2023.05.142] [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: 03/07/2023] [Revised: 05/14/2023] [Accepted: 05/21/2023] [Indexed: 05/31/2023]
Abstract
Room-temperature sodium-sulfur (RT Na-S) batteries have been attracting enormous interests due to their low-cost, high capacity and environmental benignity. However, the shuttle effect and the sluggish electrochemical reaction activity of sodium polysulfides (NaPSs) seriously restrict their practical application. To solve these issues, we rationally designed an advanced Sn-doped In2S3/S/C cathode for RT Na-S batteries by magnetron sputtering in this work, which exhibited a high reversible capacity (1663.5 mAh g-1 at 0.1 A g-1) and excellent cycling performance (902.9 mAh g-1 after 50 cycles). The in situ electrochemical impedance spectroscopy indicated that the Sn-doped In2S3 coating can accelerate charge-transfer kinetics and facilitate the diffusion of Na+. Furthermore, theoretical calculation revealed that doping of Sn into In2S3 can reduce the energy band gap, thus accelerating the electron transfer and promoting the electrochemical conversion of active species. It is demonstrated that adjusting the electronic structure is a reliable method to improve the electrocatalytic effect of catalyst and significantly improve the performance of S cathode in RT Na-S batteries.
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Affiliation(s)
- Jianhui Zhu
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China; College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Linchao Zeng
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Yumin Song
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China
| | - Feng Peng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yanyi Wang
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China; College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Tingshu He
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China
| | - Libo Deng
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China.
| | - Peixin Zhang
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China; College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China.
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Wu Z, Wang B, Zhu Y, Xue J, Nie Y, Xie Z, Le Z. Synthesis of crystalline carbon nitride with molten salt thermal treatment for efficient photocatalytic reduction and removal of U(VI). RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-023-04993-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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8
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Ma H, Shen M, Tong Y, Wang X. Radioactive Wastewater Treatment Technologies: A Review. Molecules 2023; 28:molecules28041935. [PMID: 36838922 PMCID: PMC9965242 DOI: 10.3390/molecules28041935] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/21/2023] [Accepted: 01/28/2023] [Indexed: 02/22/2023] Open
Abstract
With the wide application of nuclear energy, the problem of radioactive pollution has attracted worldwide attention, and the research on the treatment of radioactive wastewater is imminent. How to treat radioactive wastewater deeply and efficiently has become the most critical issue in the development of nuclear energy technology. The radioactive wastewater produced after using nuclear technology has the characteristics of many kinds, high concentration, and large quantity. Therefore, it is of great significance to study the treatment technology of radioactive wastewater in reprocessing plants. The process flow and waste liquid types of the post-treatment plant are reviewed. The commonly used evaporation concentration, adsorption, precipitation, ion exchange, biotechnology, membrane separation, and photocatalysis are summarized. The basic principles and technological characteristics of them are introduced. The advantages and disadvantages of different single and combined processes are compared, and the development trend of future processing technology is prospected.
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Affiliation(s)
- Hailing Ma
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Shenzhen 518055, China
- Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield S1 3JD, UK
| | - Minghai Shen
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yao Tong
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Shenzhen 518055, China
- Correspondence: (Y.T.); (X.W.)
| | - Xiao Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
- Correspondence: (Y.T.); (X.W.)
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Co-doped zinc oxide microspheres as photocatalysts for enhanced uranium extraction. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-023-08772-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Xu T, Su X, Zhu Y, Khan S, Chen DL, Guo C, Ning J, Zhong Y, Hu Y. One-pot solvothermal synthesis of flower-like Fe-doped In 2S 3/Fe 3S 4 S-scheme hetero-microspheres with enhanced interfacial electric field and boosted visible-light-driven CO 2 reduction. J Colloid Interface Sci 2023; 629:1027-1038. [PMID: 36209566 DOI: 10.1016/j.jcis.2022.09.132] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/24/2022] [Accepted: 09/25/2022] [Indexed: 11/23/2022]
Abstract
S-scheme heterojunctions hold great potential for CO2 photoreduction into solar fuels, but their activities are severely limited by the low efficiency of interfacial charge transfer. In this work, a facile one-pot solvothermal reaction has been developed to dope Fe into flower-like In2S3/Fe3S4 hetero-microspheres (Fe-In2S3/Fe3S4 HMSs), which are demonstrated as an efficient S-scheme photocatalyst for visible-light-driven CO2 photoreduction. The doping of Fe not only reduces the bandgap of In2S3 and thus extends the optical response to the visible-light region, but also increases the densities of donors and sulfur vacancies, which leads to an elevated Fermi level (Ef). The difference of Ef between In2S3 and Fe3S4 is enlarged and their band bending at the interface is therefore enhanced, which results in promoted carriers transfer in the S-scheme pathway due to the reinforced interfacial electric field. Moreover, Fe-doped In2S3 reduces the formation energy of the *CO intermediate, which thermodynamically favors the CO evolution at the surface. As a result, the Fe-In2S3/Fe3S4 HMSs exhibit a significantly boosted CO2 photoreduction activity in comparison with bare In2S3 and Fe-In2S3 samples. This work demonstrates the great potential of heteroatom-engineered S-scheme photocatalysts for CO2 photoreduction.
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Affiliation(s)
- Tongfei Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Xiaoxuan Su
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Yijia Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Shahid Khan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - De-Li Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Changfa Guo
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China.
| | - Jiqiang Ning
- Department of Optical Science and Engineering, Fudan University, Shanghai 200438, China
| | - Yijun Zhong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China.
| | - Yong Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China; Hangzhou Institute of Advanced Studies, Zhejiang Normal University, Hangzhou 311231, China.
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11
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Alhindawy IG, Mira HI, Youssef AO, Abdelwahab SM, Zaher AA, El-Said WA, Elshehy EA, Abdelkader AM. Cobalt doped titania-carbon nanosheets with induced oxygen vacancies for photocatalytic degradation of uranium complexes in radioactive wastes. NANOSCALE ADVANCES 2022; 4:5330-5342. [PMID: 36540120 PMCID: PMC9724698 DOI: 10.1039/d2na00467d] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/05/2022] [Indexed: 06/03/2023]
Abstract
The photocatalytic degradation of uranium complexes is considered among the most efficient techniques for the efficient removal of uranium ions/complexes from radioactive wastewater. Described here is a nanostructured photocatalyst based on a cobalt-doped TiO2 composite with induced oxygen vacancies (Co@TiO2-C) for the photocatalytic removal of uranium complexes from contaminated water. The synergy between oxygen vacancies and Co-doping produced a material with a 1.7 eV bandgap, while the carbon network facilitates electron movement and hinders the e-h recombination. As a result, the new photocatalyst enables the decomposition of uranium-arsenazo iii complexes (U-ARZ3), followed by photocatalytic reduction of hexavalent uranium to insoluble tetravalent uranium. Combined with the nanosheet structure's high surface area, the photocatalytic decomposition, reduction efficiency, and kinetics were significantly enhanced, achieving almost complete U(vi) removal in less than 20 minutes from solution with a concentration as high as 1000 mL g-1. Moreover, the designed photocatalyst exhibits excellent stability and reusability without decreasing the photocatalytic performance after 5 cycles.
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Affiliation(s)
| | - Hamed I Mira
- Nuclear Materials Authority El Maadi Cairo Egypt
| | - Ahmed O Youssef
- Department of Chemistry, Faculty of Science, Ain Shams University Cairo Egypt
| | - Saad M Abdelwahab
- Department of Chemistry, Faculty of Science, Ain Shams University Cairo Egypt
| | - Ahmed A Zaher
- Department of Chemistry, Faculty of Science, Mansoura University Elmansoura Egypt
| | - Waleed A El-Said
- Department of Chemistry, Faculty of Science, Assiut University Assiut 71516 Egypt
- University of Jeddah, College of Science, Department of Chemistry PO Box 80327 Jeddah 21589 Saudi Arabia
| | | | - Amr M Abdelkader
- Department of Engineering, Bournemouth University Talbot Campus, Fern Barrow Poole BH12 5BB UK
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12
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Su Y, Dong Y, Bao L, Dai C, Liu X, Liu C, Ma D, Jia Y, Jia Y, Zeng C. Increasing electron density by surface plasmon resonance for enhanced photocatalytic CO 2 reduction. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 323:116236. [PMID: 36150351 DOI: 10.1016/j.jenvman.2022.116236] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
The photocatalytic CO2 reduction reaction is a multi-electron process, which is greatly affected by the surface electron density. In this work, we synthesize Ag clusters supported on In2O3 plasmonic photocatalysts. The Ag-In2O3 compounds show remarkedly enhanced photocatalytic activity for CO2 conversion to CO compared to pristine In2O3. In the absence of any co-catalyst or sacrificial agent, the CO evolution rate of optimal Ag-In2O3-10 is 1.56 μmol/g/h, achieving 5.38-folds higher than that of In2O3 (0.29 μmol/g/h). Experimental verification and DFT calculation demonstrate that electrons transfer from Ag clusters to In2O3 on Ag-In2O3 compounds. In Ag-In2O3 compounds, Ag clusters serving as electron donators owing to the SPR behaviour are not helpful to decline photo-induced charge recomnation rate, but can provide more electron for photocatalytic reaction. Overall, the Ag clusters promote visible-light absorption and accelerate photocatalytic reaction kinetic for In2O3, resulting in the photocatalytic activity enhancement of Ag-In2O3 compounds. This work puts insight into the function of plasmonic metal on enhancing photocatalysis performance, and provides a feasible strategy to design and fabricate efficient plasmonic photocatalysts.
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Affiliation(s)
- Yujing Su
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Yujing Dong
- Key Laboratory for Special Functional Materials of Ministry of Education, and School of Materials Science and Engineering, Henan University, Kaifeng, 475004, China
| | - Linping Bao
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Chunhui Dai
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Xin Liu
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China.
| | - Chengyin Liu
- School of Environmental and Material Engineering, Yantai University, Yantai ,264005, China
| | - Dongwei Ma
- Key Laboratory for Special Functional Materials of Ministry of Education, and School of Materials Science and Engineering, Henan University, Kaifeng, 475004, China.
| | - Yushuai Jia
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Yu Jia
- Key Laboratory for Special Functional Materials of Ministry of Education, and School of Materials Science and Engineering, Henan University, Kaifeng, 475004, China
| | - Chao Zeng
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China.
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13
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Guo Y, Li S, Yang F, Li C, Guo Y, Xuan K, Wang G, Liu Y, Li J. Efficient charge separation in sulfur doped AgFeO 2 photocatalyst for enhanced photocatalytic U(VI) reduction: The role of doping and mechanism insights. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129734. [PMID: 35988487 DOI: 10.1016/j.jhazmat.2022.129734] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/31/2022] [Accepted: 08/07/2022] [Indexed: 06/15/2023]
Abstract
Photocatalytic reduction of U(VI) in aqueous solutions has been considered as an efficient and promising technology to solve radioactive U pollution. In this work, density functional theory (DFT) calculations were firstly employed to optimize and compare the adsorption configurations combined uranium with four given photocatalysts, then their adsorption energies were - 0.97 eV for AgFeO2, - 1.15 eV for Zn doped AgFeO2, - 1.73 eV for Cu doped AgFeO2 and - 2.66 eV for S doped AgFeO2, respectively, indicating the sulfur doping plays a major role in U(VI) photoreduction. Herein, a visible light responsive efficient sulfur doped AgFeO2 photocatalyst (S doped AgFeO2) was synthesized and utilized to photocatalytic reduction of U(VI) in aqueous solutions. According to XRD, XPS and TEM analysis, the sulfur was successfully doped in AgFeO2 via the hydrothermal method. The batch experimental showed that S doping enhanced the U(VI) photoreduction activity of AgFeO2, and the S-AFO-3 photocatalyst exhibited the highest photocatalytic activity (92.57%), which was 1.5 times than that of pure AgFeO2. ESR, PL and DFT results demonstrated that the enhancement of adsorbed U(VI) photoreduction was attributed to the own unique effect of oxygen vacancy defects and efficient charge separation of S doped AgFeO2 photocatalyst. Due to its higher adsorption energies, fast-U(VI) photoreduction rate and superior chemical stability, the sulfur doped AgFeO2 photocatalyst is hoped for water remediation containing U(VI) wastewater.
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Affiliation(s)
- Yadan Guo
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China; School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Shuaihang Li
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China; School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Fan Yang
- School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Chenxi Li
- School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Yaoping Guo
- School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Keng Xuan
- School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Guanghui Wang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China; School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Yunhai Liu
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China.
| | - Jun Li
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, China.
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14
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Wang F, Liao Y, Li T, Xia L. Coupling of CdS and g-C3N4 decorated dendritic fibrous nano-silica for efficient photocatalytic reduction of uranium (VI). Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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15
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Chen T, Yu K, Dong C, Yuan X, Gong X, Lian J, Cao X, Li M, Zhou L, Hu B, He R, Zhu W, Wang X. Advanced photocatalysts for uranium extraction: Elaborate design and future perspectives. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214615] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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He Y, Bao W, Li B, Fu X, Na B, Yuan D. Highly efficient removal of uranium from aqueous solution by a novel robust phosphonic acid functionalized aromatic-based hyper-crosslinked porous polymer. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08395-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Gandhi TP, Sampath PV, Maliyekkal SM. A critical review of uranium contamination in groundwater: Treatment and sludge disposal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 825:153947. [PMID: 35189244 DOI: 10.1016/j.scitotenv.2022.153947] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/24/2022] [Accepted: 02/13/2022] [Indexed: 06/14/2023]
Abstract
Dissolved uranium in groundwater at high concentrations is an emerging global threat to human and ecological health due to its radioactivity and chemical toxicity. Uranium can enter groundwater by geochemical reactions, natural deposition from minerals, mining, uranium ore processing, and spent fuel disposal. Although much progress has been made in uranium remediation in recent years, most published reviews on uranium treatment have focused on specific methods, particularly adsorption. This article systematically reviews the major treatment technologies, explains their mechanism and progress of uranium removal, and compares their performance under various environmental conditions. Of all treatment methods, adsorption has received much attention due to its ease of use and adaptability under various conditions. However, salinity and competition from other ions limit its application in actual field conditions. Biosorption and bioremediation are also promising methods due to their low-cost and chemical-free operation. Strong base anion exchange resins are more effective at typical groundwater pH conditions. Advanced oxidation processes like photocatalysis produce less sludge and are effective even at low uranium concentrations. Electrocoagulation shows significantly improved performance when organic ligands are added prior to treatment. The significant advantages of membrane filtration are high removal efficiency and the ability to recover uranium. While each technology has its merits and demerits, no single technology is entirely suitable under all conditions. One major area of concern with all technologies is the need to dispose of liquid and solid waste generated after treatment safely. Future research must focus on developing hybrid and state-of-the-art technologies for effective and sustainable uranium removal from groundwater. Developing holistic management strategies for uranium removal will hinge on understanding its speciation, mechanisms of fate and transport, and socio-economic conditions of the affected areas.
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Affiliation(s)
- T Pushparaj Gandhi
- Department of Civil and Environmental Engineering, Indian Institute of Technology Tirupati, Yerpedu, 517619, India
| | - Prasanna Venkatesh Sampath
- Department of Civil and Environmental Engineering, Indian Institute of Technology Tirupati, Yerpedu, 517619, India
| | - Shihabudheen M Maliyekkal
- Department of Civil and Environmental Engineering, Indian Institute of Technology Tirupati, Yerpedu, 517619, India.
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18
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Hollow multi-shelled In2S3 hierarchical nanotubes for enhanced photocatalytic oxidative coupling of benzylamine. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Jiang F, Liu S, Dong H, Shang Q, Zhang X, Li Y, Wang S, Li Y. Ultrasensitive photoelectrochemical immunosensor based on Dual-Photosensitive electrodes. Bioelectrochemistry 2022; 147:108169. [PMID: 35687983 DOI: 10.1016/j.bioelechem.2022.108169] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/18/2022] [Accepted: 05/18/2022] [Indexed: 11/27/2022]
Abstract
In the study, a photoelectrochemical (PEC) immunosensor based on dual-photosensitive electrodes was developed for cardiac troponin I (cTnI) detection. The sensing photocathode with biometric functions was prepared by CuInS2 and narrow band gap semiconductor In2S3 as the counter electrode. In this way, the separation of photoanode and biometric events was realized, and the ability of stability of the immunosensor could be effectively improved. Moreover, the attraction to the photogenerated electrons (e-) from photoanode would be increased by the abundant holes (h+) of photocathode, under the radiation of light. This tremendously improves the photoelectric response, which further improves the sensitivity of the immunosensor. The controllable-synthesis uncomplicated photoelectric material not only accords with the principle of simplicity of electrode modification but also makes the immunosensor more conducive to the practical application. Additionally, even in the case of zero bias voltage, the constructed PEC immunosensor can operate with high efficiency, namely, self-powered. The immunosensor could provide the quantitative readout photocurrent to a concentration of cTnI in the range of 0.10 pg/mL to 1.00 μg/mL and the detection limit was 0.0113 pg/mL under the optimal experimental conditions. With favorable performance in terms of anti-interference, stability, specificity and reproducibility, this immunosensor will provide new prospects for general PEC bioanalysis development.
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Affiliation(s)
- Feng Jiang
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Shanghua Liu
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Hui Dong
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Qing Shang
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Xuelin Zhang
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Yueyuan Li
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Shujun Wang
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Yueyun Li
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China.
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20
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Photocatalytic degradation of methyl orange by Ca doped β-In2S3 with varying Ca concentration. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04699-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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21
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Chen B, Zhang G, Chen L, Kang J, Wang Y, Chen S, Jin Y, Yan H, Xia C. Visible light driven photocatalytic removal of uranium(VI) in strongly acidic solution. JOURNAL OF HAZARDOUS MATERIALS 2022; 426:127851. [PMID: 34838353 DOI: 10.1016/j.jhazmat.2021.127851] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/31/2021] [Accepted: 11/17/2021] [Indexed: 06/13/2023]
Abstract
Photocatalytic reduction and removal of toxic uranium(VI) from aqueous solution is a highly economic, non-pollutant and efficient strategy. However, most uranium containing waste waters are highly acidic, but current photocatalysts are still restricted in slightly acidic or neutral media (pH ≥ 4). Herein, a conjugated microporous polymer (CMP), pTTT-Ben, was used for visible light driven photocatalytic reduction of U(VI) in highly acidic condition (pH = 1). A high uranium removal capacity (4710 mg/g) was achieved. The structural information of reduced uranium was investigated by X-ray photoelectron spectroscopy (XPS) and extended X-ray absorption fine structure (EXAFS), revealing the amorphous U(IV) hydrate complex, with an additional interaction between U(IV) and nitrogen atoms on pTTT-Ben. In addition, pTTT-Ben also showed excellent photocatalytic U(VI) reduction performance under natural sunlight irradiation.
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Affiliation(s)
- Bo Chen
- College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Guikai Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lang Chen
- College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Jinyang Kang
- College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Yuanhua Wang
- College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Shanyong Chen
- College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Yongdong Jin
- College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Hongjian Yan
- College of Chemistry, Sichuan University, Chengdu 610064, PR China.
| | - Chuanqin Xia
- College of Chemistry, Sichuan University, Chengdu 610064, PR China.
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22
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A facile synthesis of g-C3N4/WS2 heterojunctions with enhanced photocatalytic reduction activity of U(VI). J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-021-08118-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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23
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Wang X, Chen T, Yu K, Dong C, Yuan X, Gong X, Lian J, Cao X, Li M, Zhou L, Hu B, He R, Zhu W. Advanced Photocatalysts for Uranium Extraction: Elaborate Design and Future Perspectives. SSRN ELECTRONIC JOURNAL 2022. [DOI: doi.org/10.2139/ssrn.4048706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
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24
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Zhang Z, Li Z, Dong Z, Yu F, Wang Y, Wang Y, Cao X, Liu Y, Liu Y. Synergy of photocatalytic reduction and adsorption for boosting uranium removal with PMo12/UiO-66 heterojunction. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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26
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Zheng X, Fan Y, Peng H, Wen J. S-defected In2S3/ZnS nanospheres for enhancing solar-light photocatalytic capacity. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127126] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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27
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Huang X, Xiao J, Mei P, Wang H, Ishag A, Sun Y. The Synthesis of Z-Scheme MoS2/g-C3N4 Heterojunction for Enhanced Visible-Light-Driven Photoreduction of Uranium. Catal Letters 2021. [DOI: 10.1007/s10562-021-03814-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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28
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Zheng X, Liu T, Wen J, Liu X. Flower-like Bi 2S 3-In 2S 3 heterojunction for efficient solar light induced photoreduction of Cr(VI). CHEMOSPHERE 2021; 278:130422. [PMID: 33819890 DOI: 10.1016/j.chemosphere.2021.130422] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/21/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
To develop Bi2S3-based heterojunction for efficient solar light induced photoreduction of Cr(VI), flower-like Bi2S3-In2S3 composites consisted of nanorods were prepared via a microwave-assisted hydrothermal route. In contrast with pure Bi2S3, Bi2S3-In2S3 composites exhibited the enhanced photoreduction activity while the decreased adsorption capacity for Cr(VI) removal. The best removal efficiency of 70 mg L-1 Cr(VI) solution (99.86%) was achieved by the optimal 3-Bi2S3-In2S3 with a Bi/In molar ratio of 4:1 within 140 min. It's ascribed to the narrow band gap for strengthened visible-light response, the tight interface between Bi2S3 and In2S3 for rapid transfer and separation of charge carriers, and the enough S vacancies for highly-efficient active sites of adsorption-photoreduction. However, the long-term photo-corrosion resulted in the slightly inferior reusability of 3-Bi2S3-In2S3 under solar light irradiation after five cycles.
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Affiliation(s)
- Xiaogang Zheng
- College of Chemistry and Chemical Engineering, Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, Sichuan, 641100, China
| | - Tingting Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, Sichuan, 641100, China
| | - Jing Wen
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Province Key Laboratory of Resources and Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, Qinghai, 810008, China.
| | - Xinhui Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
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29
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Li S, Hu Y, Shen Z, Cai Y, Ji Z, Tan X, Liu Z, Zhao G, Hu S, Wang X. Rapid and selective uranium extraction from aqueous solution under visible light in the absence of solid photocatalyst. Sci China Chem 2021; 64:1323-1331. [DOI: doi.org/10.1007/s11426-021-9987-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/18/2021] [Indexed: 06/25/2023]
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30
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Li S, Hu Y, Shen Z, Cai Y, Ji Z, Tan X, Liu Z, Zhao G, Hu S, Wang X. Rapid and selective uranium extraction from aqueous solution under visible light in the absence of solid photocatalyst. Sci China Chem 2021. [DOI: 10.1007/s11426-021-9987-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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31
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Chen Y, Duan X, Li J, Liu W, Ren S, Yang J, Liu Q. Hydrothermal synthesis of Ca doped β-In2S3 for effective dyes degradation. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.03.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Anastopoulos I, Milojković JV, Tsigkou K, Zafiri C, Lopičić ZR, Kornaros M, Pashalidis I. A nappies management by-product for the treatment of uranium-contaminated waters. JOURNAL OF HAZARDOUS MATERIALS 2021; 404:124147. [PMID: 33059251 DOI: 10.1016/j.jhazmat.2020.124147] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/22/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
The direct disposal of municipal solid waste such as nappies to the environment may create serious pollution problems. Based on the circular economy and waste management concepts, the conversion of nappies and/or their ingredients (such as super absorbent polymer (SAP)) to high added value products is of great importance. In this work, a modified SAP (MSAP) was examined as an adsorbent for treatment of contaminated waters and uranium recovery. Batch experiments and spectroscopic techniques were used to examine the effect of various parameters (pH, contact time, temperature, initial concentration, and ionic strength), and the mechanism of adsorption U(VI) and desorption process. The U(VI) concentration was determined by alpha spectroscopy after addition of 232U standard tracer solution to account for possible interferences during electrodeposition and alpha particle counting. The maximum adsorption monolayer capacity was found to be 217.4 mg/g at pH 4.0 and at 298 K. The adsorption of U(VI) on MSAP seems to occur mainly via the formation of inner-sphere surface complexes between U(VI) and the carboxylic surface moieties of MSAP. The MSAP could satisfactorily be regenerated with 0.1 M Na2CO3 (>90%) and it also shows a promising applicability to real wastewaters contaminated with U(VI).
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Affiliation(s)
- Ioannis Anastopoulos
- Laboratory of Radioanalytical and Environmental Chemistry, Department of Chemistry, University of Cyprus, P.O. Box 20537, Cy-1678 Nicosia, Cyprus.
| | - Jelena V Milojković
- Institute for Technology of Nuclear and Other Mineral Raw Materials, 86 Franchet d'Esperey St., Belgrade, Serbia
| | - Konstantina Tsigkou
- Laboratory of Biochemical Engineering and Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, University Campus, Patras 26504, Greece
| | | | - Zorica R Lopičić
- Institute for Technology of Nuclear and Other Mineral Raw Materials, 86 Franchet d'Esperey St., Belgrade, Serbia
| | - Michael Kornaros
- Laboratory of Biochemical Engineering and Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, University Campus, Patras 26504, Greece
| | - Ioannis Pashalidis
- Laboratory of Radioanalytical and Environmental Chemistry, Department of Chemistry, University of Cyprus, P.O. Box 20537, Cy-1678 Nicosia, Cyprus
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33
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Liu Y, Wu S, Liu J, Xie S, Liu Y. Synthesis of g-C 3N 4/TiO 2 nanostructures for enhanced photocatalytic reduction of U(vi) in water. RSC Adv 2021; 11:4810-4817. [PMID: 35424421 PMCID: PMC8694511 DOI: 10.1039/d0ra10694a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 01/02/2021] [Indexed: 11/23/2022] Open
Abstract
Photocatalytic technology is a valid solution for the remediation of wastewater containing uranium. In this study, the synthesis of Z-scheme g-C3N4/TiO2 catalysts was made by a thermal synthetic approach for photocatalytic U(vi) reduction. The characterization results revealed the successful synthesis of g-C3N4/TiO2 nanostructures. The g-C3N4 surface was uniformly coated with TiO2 nanoparticles. The depletion of U(vi) in water evaluated the photocatalytic activity of g-C3N4/TiO2 under UV light irradiation. The photocatalytic tests showed that g-C3N4/TiO2 exhibited more effective photocatalytic activity than the raw materials (1.64 and 56.97 times higher than TiO2(P25) and g-C3N4, respectively). Besides, a pseudo-first-order model was followed by the experimental kinetic data for the photocatalytic process. Moreover, g-C3N4/TiO2 still presented high photocatalytic activity after four reacting cycles. Based on these experiment results, the improved photocatalytic activity could be attributed to the Z-scheme mechanism, which decreased the recombination of photo-produced electrons and holes. The synthesis of these g-C3N4/TiO2 nanomaterials provides a facile and inexpensive method for treating wastewater containing U(vi). Photocatalytic technology based on g-C3N4/TiO2 is a valid solution for the remediation of wastewater containing uranium.![]()
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Affiliation(s)
- Yuelin Liu
- Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China Hengyang 421001 China.,School of Civil Engineering, Hunan University of Technology Zhuzhou 412007 China
| | - Shanshan Wu
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China Hengyang 421001 China
| | - Jun Liu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, School of Life Science and Chemistry, Hunan University of Technology Zhuzhou 412007 China
| | - Shuibo Xie
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China Hengyang 421001 China .,School of Civil Engineering, University of South China Hengyang 421001 China
| | - Yingjiu Liu
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China Hengyang 421001 China
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34
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Liao T, Feng T, Li J, Hu J, Yang L, Zhang L. Pilot-scale removal of uranium from uranium plant wastewater using industrial iron powder in the ultrasonic field. ANN NUCL ENERGY 2021. [DOI: 10.1016/j.anucene.2020.107876] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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35
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Li L, Yin D, Xiandi G. Construction of a novel 2D–2D heterojunction by coupling a covalent organic framework and In 2S 3 for photocatalytic removal of organic pollutants with high efficiency. NEW J CHEM 2021. [DOI: 10.1039/d1nj03133c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
TpPa-1 COF was coupled with an inorganic narrow-band gap semiconductor In2S3 to form a novel 2D–2D heterojunction by a facile hydrothermal method.
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Affiliation(s)
- Luqiu Li
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Dongguang Yin
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Guo Xiandi
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
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36
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He S, Yang Z, Cui X, Zhang X, Niu X. Fabrication of the novel Ag-doped SnS 2@InVO 4 composite with high adsorption-photocatalysis for the removal of uranium (VI). CHEMOSPHERE 2020; 260:127548. [PMID: 32688312 DOI: 10.1016/j.chemosphere.2020.127548] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 06/19/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
A novel Ag-doped SnS2@InVO4 composite was successfully synthesized for efficient uranium removal from wastewater through a facile hydrothermal method. The structure, morphology and optical property of materials were characterized using various instruments. The results proved that Ag-doped SnS2@InVO4 composite presented as hexangular nanosheets with about 4.87 nm pore size and 101.58 m2/g specific surface area. Further characterization demonstrated that photo-adsorption ability of visible light was enhanced and band gap was narrowed. The adsorption kinetics and isotherm of U(VI) on Ag-doped SnS2@InVO4 composite could be depicted via the Langmuir model and pseudo-second-order mode, and the maximum adsorption capacity of U(VI) reached 167.79 mg/g. The elimination of U(VI) of as-synthesized composites was studied by a synergy of adsorption and visible-light photocatalysis, and the optimal content of InVO4 was found to be 2 wt% with the highest removal efficiency of 97.6%. In addition, compared with pure SnS2 and Ag-doped SnS2, the Ag-doped SnS2@InVO4 composites exhibited superior photocatalytic performance for the conversion of soluble U(VI) to insoluble U(IV) under visible light. The excellent photocatalytic performance was mainly attributed to numerous surface-active sites, strong optical adsorption ability and narrow band gap. Simultaneously, the heterojunction between Ag-doped SnS2 and InVO4 promoted the separation and transfer of photoexcited charges. The cyclic experiments indicated the Ag-doped SnS2@InVO4 composite remained good structural stability and reusability. Finally, the possible mechanism was discussed based on the experimental analysis.
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Affiliation(s)
- Shan He
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Zhiquan Yang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China.
| | - Xiandi Cui
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Xinyi Zhang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Xiaojun Niu
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
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37
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Qiu H, Fang S, Huang G, Bi J. A novel application of In 2S 3 for visible-light-driven photocatalytic inactivation of bacteria: Kinetics, stability, toxicity and mechanism. ENVIRONMENTAL RESEARCH 2020; 190:110018. [PMID: 32810495 DOI: 10.1016/j.envres.2020.110018] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/14/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
Photocatalytic bacterial inactivation under visible light emerges as a new alternative to control microbial contamination by utilizing free and renewable sunlight. However, the exploration of highly effective and safe visible-light-driven (VLD) photocatalysts remains an important step toward accessing this new technology. Herein, an eco-friendly photocatalyst, namely Indium Sulfide (In2S3), was fabricated through a facile hydrothermal method for VLD photocatalytic inactivation of bacteria. The energy band gap of the as-prepared In2S3 was measured as 2.25 eV. As expected, the obtained In2S3 photocatalyst showed remarkable inactivation efficiency toward E. coli under fluorescent tubes irradiation. The photocatalytic inactivation kinetic was perfectly fitted by a mathematical model for bacteria inactivation. In addition, In2S3 exhibited high stability and could be reused. The leakage of In3+ was not significant and showed no toxic effect to the bacteria. Based on the results of scavenger study and ESR technology, the dominant reactive species causing In2S3 VLD photocatalytic bacterial inactivation were proposed as O2-, h+, H2O2 and e-, rather than OH. The SEM study suggested that the damages to the intracellular components occurred prior to the destruction of cell wall. This study provides novel application of In2S3 for VLD photocatalytic inactivation of bacteria as well as comprehensive insight into the inactivation mechanism.
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Affiliation(s)
- Haibo Qiu
- Weihai Municipal Hospital, Weihai, Shandong, 264200, China
| | - Shengqiong Fang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China.
| | - Guocheng Huang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China.
| | - Jinhong Bi
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
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Li H, Sun T, Zhang L, Cao Y. Matching and adjusting energy band structures of Pd-modified sulphides (ZnS, In 2S 3 and CuS) and improving the photocatalytic activity of CO 2 photoreduction. NANOSCALE 2020; 12:18180-18192. [PMID: 32856623 DOI: 10.1039/c9nr10394e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A series of Pd-modified sulphide photocatalysts (ZnS-PdX%, In2S3-PdX% and CuS-PdX%) for the photoreduction of CO2 were synthesised via a simple hydrothermal method. Here, the introduction of the -S-Pd-S- surface species onto the surface of the sulphides extended the visible light absorption, prolonged the lifetime of photogenerated electrons and suppressed the recombination of the photocarriers. Additionally, the match between the band structure and the redox potential for the photoreduction of CO2 was improved. As a result, the photocatalytic activity of ZnS-Pd1.5%, In2S3-Pd1.5% and CuS-Pd1.5% was enhanced when compared with the results from ZnS, In2S3 and CuS photocatalysts. Also, ZnS-Pd1.5%, In2S3-Pd1.5% and CuS-Pd1.5% showed different photocatalytic activities due to differences in the matching relationships between the band structure and the redox potential. In this paper, extensive details on adjusting and matching the energy band structures, as well as viable methods for improving photocatalytic performance, are provided.
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Affiliation(s)
- Hanbo Li
- Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China.
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Li Y, Liu L, Feng J, Ren X, Zhang Y, Yan T, Liu X, Wei Q. A self-powered photoelectrochemical cathodic aptasensor for the detection of 17β-estradiol based on FeOOH/In 2S 3 photoanode. Biosens Bioelectron 2020; 154:112089. [PMID: 32093896 DOI: 10.1016/j.bios.2020.112089] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 02/07/2020] [Accepted: 02/09/2020] [Indexed: 01/08/2023]
Abstract
In this work, a novel self-powered photoelectrochemical (PEC) aptasensor integrated photoanode and photocathode for the accurate and selective detection of 17β-estradiol (E2) was proposed for the first time. FeOOH/In2S3 heterojunction was built initially and used as a substitute for platinum (Pt) counter electrode. The matched band gap edge of FeOOH and In2S3 facilitated the transfer of photo-generate electrons to photoanode, while the holes left in the valence band of photocathode (CuInS2) can be attracted by the electrons flowed from the photoanode, which reduced the recombination of electron-hole pairs and promote the cathodic photocurrent. Under optimal conditions, the constructed cathodic aptasensor of E2 presented linear scope in 10 fg/mL-1 μg/mL with detection limit of 3.65 fg/mL. Besides, the cathodic aptasensor exhibited admiring selectivity, stability and reproducibility. This work verified that the cathodic photocurrent response can be regulated by the corresponding photoanode which provided a new design thought for PEC aptasensor on the basis of p-type semiconductor.
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Affiliation(s)
- Yuewen Li
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, PR China
| | - Lei Liu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Jinhui Feng
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Xiang Ren
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Yong Zhang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Tao Yan
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, PR China
| | - Xuejing Liu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China.
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Li Y, Xu R, Wei D, Feng R, Fan D, Zhang N, Wei Q. A photoelectrochemical aptasensor for the detection of 17β-estradiol based on In 2S 3 and CdS co-sensitized cerium doped TiO 2. NEW J CHEM 2020. [DOI: 10.1039/c9nj05435a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In2S3 and CdS co-sensitized Ce doped TiO2 optimized the transmission path of electrons.
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Affiliation(s)
- Yuewen Li
- School of Water Conservancy and Environment
- University of Jinan
- Jinan 250022
- P. R. China
| | - Rui Xu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Dong Wei
- School of Water Conservancy and Environment
- University of Jinan
- Jinan 250022
- P. R. China
| | - Rui Feng
- School of Water Conservancy and Environment
- University of Jinan
- Jinan 250022
- P. R. China
| | - Dawei Fan
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Nuo Zhang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
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41
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Zhang W, Li L, Gao Y, Zhang D. Graphitic carbon nitride-based materials for photocatalytic reduction of U( vi). NEW J CHEM 2020. [DOI: 10.1039/d0nj04519e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This work reports the photocatalytic reduction of U(vi) using g-C3N4-based materials and discusses the factors affecting the photocatalytic reduction of U(vi).
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Affiliation(s)
- Weizhuo Zhang
- Shaanxi Key Laboratory of Industrial Automation
- School of Mechanical Engineering
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Le Li
- Shaanxi Key Laboratory of Industrial Automation
- School of Mechanical Engineering
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Yanhong Gao
- Shaanxi Province Key Laboratory of Catalytic Foundation and Application
- School of Chemistry and Environment Science
- Shaanxi University of Technology
- Hanzhong 723001
- China
| | - Dan Zhang
- Shaanxi Province Key Laboratory of Catalytic Foundation and Application
- School of Chemistry and Environment Science
- Shaanxi University of Technology
- Hanzhong 723001
- China
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Li P, Wang J, Wang Y, Liang J, Pan D, Qiang S, Fan Q. An overview and recent progress in the heterogeneous photocatalytic reduction of U(VI). JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.100320] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Fang H, Pan Y, Yin M, Xu L, Zhu Y, Pan C. Facile synthesis of ternary Ti3C2–OH/ln2S3/CdS composite with efficient adsorption and photocatalytic performance towards organic dyes. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.120981] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Pulipaka S, Koushik AKS, Deepa M, Meduri P. Enhanced photoelectrochemical activity of Co-doped β-In2S3nanoflakes as photoanodes for water splitting. RSC Adv 2019; 9:1335-1340. [PMID: 35518026 PMCID: PMC9059628 DOI: 10.1039/c8ra09660k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 12/28/2018] [Indexed: 11/21/2022] Open
Abstract
This work is primarily focused on indium sulfide (β-In2S3) and cobalt (Co)-doped β-In2S3 nanoflakes as photoanodes for water oxidation. The incorporation of cobalt introduces new dopant energy levels increasing visible light absorption and leading to improved photo-activity. In addition, cobalt ion centers in β-In2S3 act as potential catalytic sites to promote electro-activity. 5 mol% Co-doped β-In2S3 nanoflakes when tested for photoelectrochemical water splitting exhibited a photocurrent density of 0.69 mA cm−2 at 1.23 V, much higher than that of pure β-In2S3. Doped indium sulfide as an efficient photocatalyst for water oxidation.![]()
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Affiliation(s)
- Supriya Pulipaka
- Department of Chemical Engineering
- Indian Institute of Technology Hyderabad
- India
| | - A. K. S. Koushik
- Department of Chemical Engineering
- Indian Institute of Technology Hyderabad
- India
| | - Melepurath Deepa
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- India
| | - Praveen Meduri
- Department of Chemical Engineering
- Indian Institute of Technology Hyderabad
- India
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