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Yang Z, Lv X, Liu X, Jia S, Zhang Y, Yu Y, Zhang C, Liu D. Sieve-Like CNT Film Coupled with TiO 2 Nanowire for High-Performance Continuous-Flow Photodegradation of Rhodamine B under Visible Light Irradiation. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1335. [PMID: 34069429 PMCID: PMC8159084 DOI: 10.3390/nano11051335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 01/14/2023]
Abstract
Continuous-flow photoreactors hold great promise for the highly efficient photodegradation of pollutants due to their continuity and sustainability. However, how to enable a continuous-flow photoreactor with the combined features of high photodegradation efficiency and durability as well as broad-wavelength light absorption and large-scale processing remains a significant challenge. Herein, we demonstrate a facile and effective strategy to construct a sieve-like carbon nanotube (CNT)/TiO2 nanowire film (SCTF) with superior flexibility (180° bending), high tensile strength (75-82 MPa), good surface wettability, essential light penetration and convenient visible light absorption. Significantly, the unique architecture, featuring abundant, well-ordered and uniform mesopores with ca. 70 µm in diameter, as well as a homogenous distribution of TiO2 nanowires with an average diameter of ca. 500 nm, could act as a "waterway" for efficient solution infiltration through the SCTF, thereby, enabling the photocatalytic degradation of polluted water in a continuous-flow mode. The optimized SCTF-2.5 displayed favorable photocatalytic behavior with 96% degradation of rhodamine B (RhB) within 80 min and a rate constant of 0.0394 min-1. The continuous-flow photodegradation device made using SCTF-2.5 featured exceptional photocatalytic behavior for the continuous degradation of RhB under simulated solar irradiation with a high degradation ratio (99.6%) and long-term stability (99.2% retention after working continuously for 72 h). This work sheds light on new strategies for designing and fabricating high-performance continuous-flow photoreactors toward future uses.
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Affiliation(s)
- Zhengpeng Yang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China; (Z.Y.); (X.L.); (S.J.); (C.Z.)
| | - Xiaoting Lv
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China; (Z.Y.); (X.L.); (S.J.); (C.Z.)
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Xuqing Liu
- Department of Materials, The University of Manchester, Oxford Road, Manchester M13 9PL, UK;
| | - Shengmin Jia
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China; (Z.Y.); (X.L.); (S.J.); (C.Z.)
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yongyi Zhang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Jiangxi Key Lab of Carbonene Materials, Division of Nanomaterials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Nanchang 330200, China
| | - Yingying Yu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Chunjing Zhang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China; (Z.Y.); (X.L.); (S.J.); (C.Z.)
| | - Dandan Liu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
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Layer-by-layer assembled photocatalysts for environmental remediation and solar energy conversion. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.05.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Lu Z, Xiang X, Zou L, Xie J. Fluffy-ball-shaped carbon nanotube–TiO2 nanorod nanocomposites for photocatalytic degradation of methylene blue. RSC Adv 2015. [DOI: 10.1039/c5ra05641a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluffy-ball-shaped multiwalled CNT–TiO2 nanorod composites were fabricated via a facile hydrothermal approach for the photocatalytic degradation of methylene blue.
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Affiliation(s)
- Zhisong Lu
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies
- Southwest University
- Chongqing 400715
- P. R. China
- Institute for Clean Energy & Advanced Materials
| | - Xiutao Xiang
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies
- Southwest University
- Chongqing 400715
- P. R. China
- Institute for Clean Energy & Advanced Materials
| | - Long Zou
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies
- Southwest University
- Chongqing 400715
- P. R. China
- Institute for Clean Energy & Advanced Materials
| | - Jiale Xie
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies
- Southwest University
- Chongqing 400715
- P. R. China
- Institute for Clean Energy & Advanced Materials
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Singh S, Singh BR, Khan W, Naqvi AH. Synthesis and characterization of carbon nanotubes/titanium molybdate nanocomposite and assessment of its photocatalytic activity. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.10.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Liu X, Wang M, Zhang S, Pan B. Application potential of carbon nanotubes in water treatment: A review. J Environ Sci (China) 2013; 25:1263-1280. [PMID: 24218837 DOI: 10.1016/s1001-0742(12)60161-2] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Water treatment is the key to coping with the conflict between people's increasing demand for water and the world-wide water shortage. Owing to their unique and tunable structural, physical, and chemical properties, carbon nanotubes (CNTs) have exhibited great potentials in water treatment. This review makes an attempt to provide an overview of potential solutions to various environmental challenges by using CNTs as adsorbents, catalysts or catalyst support, membranes, and electrodes. The merits of incorporating CNT to conventional water-treatment material are emphasized, and the remaining challenges are discussed.
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Affiliation(s)
- Xitong Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
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Zhang R, Zhang Y, Zhang Q, Xie H, Wang H, Nie J, Wen Q, Wei F. Optical visualization of individual ultralong carbon nanotubes by chemical vapour deposition of titanium dioxide nanoparticles. Nat Commun 2013; 4:1727. [DOI: 10.1038/ncomms2736] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 03/14/2013] [Indexed: 11/09/2022] Open
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Kinetics and mechanisms of charge transfer processes in photocatalytic systems: A review. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2012. [DOI: 10.1016/j.jphotochemrev.2012.07.002] [Citation(s) in RCA: 199] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Liu Y, Jin H, Zhu S, Liu Y, Long M, Zhou Y, Yan D. A facile method for fabricating TiO2@mesoporous carbon and three-layered nanocomposites. NANOTECHNOLOGY 2012; 23:325602. [PMID: 22825396 DOI: 10.1088/0957-4484/23/32/325602] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Herein, we report a new and facile method for fabricating TiO(2)@mesoporous carbon hybrid materials. Uniform polydopamine (PDA) layers were coated onto the surface of titanate nanotubes (TNTs) and TiO(2) nanorods (TNDs) through the spontaneous adhesion and self-polymerization of dopamine during the dipping process. Core-shell mesoporous carbon nanotubes with TiO(2) nanorods or nanoparticles encapsulated inside (TiO(2)@MC) were then obtained by transforming PDA layers into carbonaceous ones through calcination in nitrogen at 800 °C. The thickness of the mesoporous carbon layers is tens of nanometers and can be controlled by adjusting the coated PDA layers through the self-polymerization reaction time. In addition, three-layered nanocomposites of TiO(2)@MC@MO (MO, metal oxide) can be readily prepared by utilizing PDA layers in TNTs@PDA or TNDs@PDA to adsorb the metal ions, followed by the calcination process.
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Affiliation(s)
- Yong Liu
- School of Chemistry and Chemical Technology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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