Synthesis with microwave-assisted sol-gel method and photocatalytic activity of quantum-sized TiO 2 under solar and ultraviolet irradiation

Shixiang Lu*, Lian Dai, Wenguo Xu, Chengxiang Ma

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Quantum-sized TiO 2 had been prepared by using Ti(n-OC 4H 9) 4 as the raw material via a microwave-assisted sol-gel method. The influence of different processing temperature and time on the size of TiO 2 was researched. The TiO 2 was characterized by transmission electron microscopy (TEM) and X-ray diffraction analysis (XRD). The prepared TiO 2 presents anatase phase structure by TEM and XRD. The photocatalytic activity of TiO 2 was evaluated by the degradation rate of methyl orange in aqueous solution. The particle size of TiO 2 was about 9.10 nm when the processing temperature was 160°C and the processing time was 90 min (160°C-90min), and the photocatalytic performance was the best under this size. When the initial concentration of methyl orange was 10 mg/L and the amount of quantum-sized TiO 2 was 0.6 g/L, the degradation rate of methyl orange under ultraviolet and solar irradiation at room temperature in 60 min were 40% and 86%, respectively.

源语言英语
主期刊名New Materials, Applications and Processes
666-672
页数7
DOI
出版状态已出版 - 2012
活动2011 International Conference on Chemical, Material and Metallurgical Engineering, ICCMME 2011 - Beihai, 中国
期限: 23 12月 201125 12月 2011

出版系列

姓名Advanced Materials Research
399-401
ISSN(印刷版)1022-6680

会议

会议2011 International Conference on Chemical, Material and Metallurgical Engineering, ICCMME 2011
国家/地区中国
Beihai
时期23/12/1125/12/11

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