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Fabrication and Photocatalytic Activity of Single Crystalline TiO2 Hierarchically Structured Microspheres. Catalysts 2023. [DOI: 10.3390/catal13010201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Single crystalline anatase TiO2 microspheres with co-exposed {001}/{101} facets were prepared by a facile one-pot hydrothermal method using NaF as a morphology controlling agent. The influences of the NaF amount on the morphology and also on the photocatalytic activity were investigated systematically. The obtained microspheres possessed better morphology when the concentration of NaF was chosen at 0.1 mol/L, and the experimental results indicated that the crystal structure and morphology played important roles on the photocatalytic activity, based on the experimental results it was found that the photocatalytic degradation efficiency of TiO2 microspheres on Tetracycline hydrochloride could reach 76.4% in 2 h. Finally, a growth mechanism was proposed by investigating the growth process, i.e., a synergistic effect of F ions modified Ostwald ripening and oriented attachment.
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Lian P, Qin A, Liao L, Zhang K. Progress on the nanoscale spherical TiO
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photocatalysts: Mechanisms, synthesis and degradation applications. NANO SELECT 2020. [DOI: 10.1002/nano.202000091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Peng Lian
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education College of Materials Science and Engineering Guilin University of Technology Guilin P. R. China
| | - Aimiao Qin
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education College of Materials Science and Engineering Guilin University of Technology Guilin P. R. China
| | - Lei Liao
- College of Environmental Science and Engineering Guilin University of Technology Guilin P. R. China
| | - Kaiyou Zhang
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education College of Materials Science and Engineering Guilin University of Technology Guilin P. R. China
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Maimaitizi H, Kadeer K, Reheman A, Talifu D, Tursun Y, Abulizi A. One-pot sonochemical synthesis of 3D flower-like hierarchical AgCl microsphere with enhanced photocatalytic activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:26883-26892. [PMID: 31302891 DOI: 10.1007/s11356-019-05371-z] [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: 11/09/2018] [Accepted: 05/03/2019] [Indexed: 06/10/2023]
Abstract
A highly uniform 3D flower-like hierarchical AgCl microsphere was prepared by sonochemical method with the existence of β-dextrin. The 3D flower-like hierarchical structure can be ascribed to the existence of β-dextrin, which provides nucleation sites for the growth of nanosheets because of the strong interaction between β-dextrin and Ag+. The 3D flower-like hierarchical AgCl microspheres were assembled by numerous interleaving nanosheet petals with small thickness. Benefiting from the unique structural features, the as-prepared 3D flower-like hierarchical AgCl microsphere exhibited higher degradation efficiency with degrading 98.17% of methylene blue (MB) and 88.50% of tetracycline (TC) within 40 min, which were both remarkably higher than those of irregular AgCl under visible light irradiation. Besides, the photocatalytic degradation rate constant of 3D flower-like hierarchical AgCl microsphere (0.063 min-1) for MB was 3.94 times higher than that of irregular AgCl (0.016 min-1). Moreover, a possible mechanism for the formation and excellent photocatalytic performance of 3D flower-like hierarchical AgCl microsphere was also proposed.
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Affiliation(s)
- Hujiabudula Maimaitizi
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
| | - Kuerbangnisha Kadeer
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
| | - Abulajiang Reheman
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
| | - Dilinuer Talifu
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
| | - Yalkunjan Tursun
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
| | - Abulikemu Abulizi
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China.
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