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Vigneshwaran S, Kim DG, Ko SO. Tuning of interfacial HGO@CLS nanohybrid S-scheme heterojunction with improved carrier separation and photocatalytic activity towards RhB degradation. CHEMOSPHERE 2023; 340:139914. [PMID: 37633616 DOI: 10.1016/j.chemosphere.2023.139914] [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: 07/18/2023] [Revised: 08/14/2023] [Accepted: 08/19/2023] [Indexed: 08/28/2023]
Abstract
Herein, we premeditated and invented the innovative hybrid photocatalyst 2D/2D CuLa2S4 on holey graphene oxide (HGO) (HGO@CLS) via the hydrothermal method. Electrochemical techniques demonstrate the action of HGO in the HGO@CLS photocatalyst as an effective medium for electron transfer. Combining bimetallic sulfides on porous HGO synergistically provides a higher negative conduction band edge (-0.141 V), greater photo response (10.8 mA/cm2), smaller charge transfer resistance (Rct = 1.79Ω), and lower photoluminescence (PL) spectral intensity. According to our research, the catalytic recitals are sped up when HGO is assimilated into CLS photocatalyst hetero-junction. Additionally, it lowers the reassimilation rate due to the combined mesh nanostructures and functionality of CLS and HGO. UV-Vis DRS, Mott-Schottky, PL, and Electrochemical impedance spectra (EIS) results manifested that the CuLa2S4/HGO makes the spatial separation competent and transference of charge carriers due to the photon irradiation and exhibits superior photocatalytic ability. Electron spin resonance (ESR) analysis confirmed that •OH and h+ were the predominant radical species responsible for Rhodamine B(RhB) degradation. Moreover, conceivable degradation ways of RhB were deduced according to the identified intermediates which are responsible for the degradation of recalcitrant products. To check the stability of the photocatalyst, revival tests were also carried out. Similarly, the oxidative byproducts created in the deprivation courses were looked at, and a thorough explanation for the mechanism of degradation was given.
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Affiliation(s)
- Sivakumar Vigneshwaran
- Environmental System Laboratory, Department of Civil Engineering, Kyung Hee University-Global Campus, 1732 Deogyong-daero, Giheung-Gu, Yongin-Si, Gyeonggi-Do 16705, Republic of Korea
| | - Do-Gun Kim
- Department of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Suncheon, Jellanam-do, 57922, Republic of Korea
| | - Seok-Oh Ko
- Environmental System Laboratory, Department of Civil Engineering, Kyung Hee University-Global Campus, 1732 Deogyong-daero, Giheung-Gu, Yongin-Si, Gyeonggi-Do 16705, Republic of Korea.
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Solanki K, Sharma S, Yadav S, Kaushik B, Rana P, Dixit R, Sharma RK. Hierarchical 3D Flower-like Metal Oxides Micro/Nanostructures: Fabrication, Surface Modification, Their Crucial Role in Environmental Decontamination, Mechanistic Insights, and Future Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300394. [PMID: 36950767 DOI: 10.1002/smll.202300394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Hierarchical micro/nanostructures are constructed by micro-scaled objects with nanoarchitectures belonging to an interesting class of crystalline materials that has significant applications in diverse fields. Featured with a large surface-to-volume ratio, facile mass transportation, high stability against aggregation, structurally enhanced adsorption, and catalytical performances, three dimenisional (3D) hierarchical metal oxides have been considered as versatile functional materials for waste-water treatment. Due to the ineffectiveness of traditional water purification protocols for reclamation of water, lately, the use of hierarchical metal oxides has emerged as an appealing platform for the remediation of water pollution owing to their fascinating and tailorable physiochemical properties. The present review highlights various approaches to the tunable synthesis of hierarchical structures along with their surface modification strategies to enhance their efficiencies for the removal of different noxious substances. Besides, their applications for the eradication of organic and inorganic contaminants have been discussed comprehensively with their plausible mechanistic pathways. Finally, overlooked aspects in this field as well as the major roadblocks to the implementation of these metal oxide architectures for large-scale treatment of wastewater are provided here. Moreover, the potential ways to tackle these issues are also presented which may be useful for the transformation of current water treatment technologies.
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Affiliation(s)
- Kanika Solanki
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Shivani Sharma
- Department of Chemistry, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - Sneha Yadav
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Bhawna Kaushik
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Pooja Rana
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Ranjana Dixit
- Department of Chemistry, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - R K Sharma
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
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Chen Q, Gao M, Yu M, Zhang T, Wang J, Bi J, Dong F. Efficient photo-degradation of antibiotics by waste eggshells derived AgBr-CaCO3 heterostructure under visible light. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Miao X, Zhao L, Ren G, Pang Y, Xin H, Ge B, Liu C. Design of an interface heating device based on polydivinylbenzene/SiO 2/Bi 2WO 6 and its visible light response performance for water purification. Phys Chem Chem Phys 2023; 25:4332-4339. [PMID: 36689259 DOI: 10.1039/d2cp04877a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Environmental pollution and the shortage of drinking water are the challenges that mankind is facing. Solar interface evaporation technology has been demonstrated as an important method for producing clean water, but its application to sewage still faces problems, mainly manifested in solubility and oily pollutants. Therefore, an evaporator device contains a superhydrophobic Bi2WO6 felt floating layer, a filter paper hydrophilic layer, and a copper foam/CuO photothermal layer, of which the water contact angle of the superhydrophobic felt can reach 159°. The floating layer not only has the ability to adsorb n-hexane but the Rh B degradation can also be realized under indoor/outdoor light conditions. The carrier life of Bi2WO6 is 28.8 ns. A copper foam/CuO photothermal layer prepared through a low-temperature treatment is combined with the floating and hydrophilic layer to obtain an evaporation rate of 1.53 kg m-2 h-1.
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Affiliation(s)
- Xiao Miao
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Ling Zhao
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Guina Ren
- School of Environmental and Material Engineering, Yantai University, Yantai, 264405, China
| | - Yunlong Pang
- School of Materials Science and Engineering, Liaocheng University, Liaocheng, 252000, China.
| | - Hui Xin
- School of Materials Science and Engineering, Liaocheng University, Liaocheng, 252000, China.
| | - Bo Ge
- School of Materials Science and Engineering, Liaocheng University, Liaocheng, 252000, China.
| | - Cancan Liu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
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FeOx nanoclusters decorated TiO2 for boosting white LED driven photocatalytic Fenton-like norfloxacin degradation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Liu JP, Fu YX, Wang ZH, Ma XY, Wu XF, Li HY, Kang YW, Wang H, Ci LJ. Synthesis, characterization and photocatalytic properties of In 2.77S 4/Ti 3C 2 composites. APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING 2022; 128:1065. [PMID: 36406017 PMCID: PMC9660147 DOI: 10.1007/s00339-022-06228-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Recently, the problem of water pollution, caused by antibiotics, is becoming more and more serious. Photocatalysis is one of the promising technologies for removing antibiotics from water. Herein, the In2.77S4/Ti3C2 composites were prepared by an in-situ hydrothermal growth method for photocatalytic degradation of tetracycline (TC). The as-developed composites were characterized by various methods. The UV-Vis DRS spectra reveals that the introduction of Ti3C2 makes the bandgap of the as-prepared composites smaller and the visible light absorption ability improved. The photocatalytic degradation efficiency of the as-prepared composite is enhanced under visible light illumination. It is shown as first increasing and then decreasing with increasing the content of Ti3C2 in the composite and reaches to the maximum of 89.3% in 90 min, which is higher than 75.1% of In2.77S4 and 6.7% of Ti3C2. The reason of improvement is the interface between In2.77S4 and Ti3C2 is tightly combined to form a heterojunction. Moreover, the photocurrent intensity of the as-obtained composite is improved, while its Nyquist arc radius is decreased. In addition, holes are the main active species and ·OH and ·O2 - play an auxiliary role during the degradation of TC.
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Affiliation(s)
- Jin-Peng Liu
- School of Materials Science and Engineering, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang, 050043 China
| | - Yun-Xuan Fu
- School of Materials Science and Engineering, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang, 050043 China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin, 300384 China
| | - Ze-Hong Wang
- School of Materials Science and Engineering, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang, 050043 China
| | - Xiao-Ye Ma
- School of Materials Science and Engineering, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang, 050043 China
| | - Xiang-Feng Wu
- School of Materials Science and Engineering, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang, 050043 China
| | - Hong-Yang Li
- School of Materials Science and Engineering, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang, 050043 China
| | - Ye-Wei Kang
- School of Materials Science and Engineering, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang, 050043 China
| | - Hui Wang
- School of Materials Science and Engineering, Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang, 050043 China
| | - Li-Jie Ci
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang, 050035 China
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Tailoring Structure: Current Design Strategies and Emerging Trends to Hierarchical Catalysts. Catalysts 2022. [DOI: 10.3390/catal12101152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Nature mimicking implies the design of nanostructured materials, which can be assembled into a hierarchical structure, thus outperforming the features of the neat components because of their multiple length scale organization. This approach can be effectively exploited for the design of advanced photocatalysts with superior catalytic activity for energy and environment applications with considerable development in the recent six years. In this context, we propose a review on the state of the art for hierarchical photocatalyst production. Particularly, different synthesis strategies are presented, including template-free structuring, and organic, inorganic, and hybrid templating. Furthermore, emerging approaches based on hybrid and bio-waste templating are also highlighted. Finally, a critical comparison among available methods is carried out based on the envisaged application.
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