Hollow mesoporous TiO2 microspheres for enhanced photocatalytic degradation of acetaminophen in water

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題名:	Hollow mesoporous TiO2 microspheres for enhanced photocatalytic degradation of acetaminophen in water
作者:	林進榮;Lin, Chin Jung;Yang, Wen-Ta;Chou, Chen-Yi;Liou, Sofia Ya Hsuan
貢獻者:	工學院環境工程研究所
關鍵詞:	Acetaminophen;Acetaminophen - chemistry;Catalysis;Light;Mesoporous;microparticles;Microscopy, Electron, Scanning;Microspheres;photocatalysis;photocatalysts;Photocatalytic;Photolysis;pollution;Porosity;porous media;scanning electron microscopy;surface area;TiO2;Titanium - chemistry;Titanium - radiation effects;titanium dioxide;transmission electron microscopy;Water Pollutants, Chemical - chemistry;X-Ray Diffraction
日期:	2016-06-01
上傳時間:	2026-04-23 15:03:17 (UTC+8)
出版者:	Elsevier Ltd.;England: Elsevier Ltd
摘要:	摘要： Hollow core-shell mesoporous TiO2 microspheres were synthesized by a template-free solvothermal route for efficient photocatalytic degradation of acetaminophen. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Barrett–Joyner–Halenda data revealed a micrometer-sized mesoporous anatase TiO2 hollow sphere with large surface area and efficient light harvesting. For the photocatalytic degradation of acetaminophen in 60 min, the conversion fraction of the drug increased from 88% over commercial Degussa P25 TiO2 to 94% over hollow spheres with about 25% increase in the initial reaction rate. Even after 10 repeated runs, the recycled hollow spheres showed good photodegradation activity. The intermediates generated in the photocatalytic reactions were eventually converted into molecules that are easier to handle. The simple fabrication route would facilitate the development of photocatalysts for the decomposition of environmental contaminants. [Display omitted] •Hollow TiO2 spheres were synthesized by a template-free solvothermal route.•TiO2 spheres have high contact area and accessibility for outer light and pollutants.•TiO2 spheres allow easy separation from the solution with good reusable performance. 其他題名： Chemosphere 出版者： England: Elsevier Ltd 出版日期： 2016-06 出處： Chemosphere (Oxford), 2016-06, Vol.152, p.490-495 資源來源： PubMed 版權： 2016 Elsevier Ltd 版權： Copyright © 2016 Elsevier Ltd. All rights reserved. 識別號： ISSN: 0045-6535 識別號： ISSN: 1879-1298 識別號： EISSN: 1879-1298 識別號： DOI: 10.1016/j.chemosphere.2016.03.017 識別號： PMID: 27003371
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