The photocatalytic properties of nanocrystalline TiO2  in the rutile phase

Acta Chimica Sinica ›› 2001, Vol. 59 ›› Issue (11): 1908-1913. Previous Articles Next Articles

Original Articles

金红石相二氧化钛纳米晶的光催化活性

张青红;高濂;郑珊

中国科学院上海硅酸盐研究所.上海(200050);中国科学院高性能陶瓷和超微结构国家重点实验室

发布日期:2001-11-15

The photocatalytic properties of nanocrystalline TiO2 in the rutile phase

Zhang Qinghong;Gao Lian;Zheng Shan

Shanghai Inst Ceram., CAS.Shanghai(200050)

Published:2001-11-15

Abstract

The photocatalytic properties of rutile-type nanocrystalline TiO2 of different sizes have been investigated using the degradation of phenol and removal of chromate as model reactions. TEM. XRD and BET surface area results show that the particle size of the ultrafine rutile-type is about 7～8nm, with and 11 nm blue shift of the absorption band edge in the UV-vis spectra. The photocatalytic activity of the quantum-siized TiO2(7 nm), which is comparable to that of 6.8 nm anatase-type TiO2, is much higher than that of rutile- type TiO2 of larger sizes in both reactions.

Key words: RUTILE, TITANIUM DIOXIDE, PHENOL

CLC Number:

O643

Cite this article

Zhang Qinghong;Gao Lian;Zheng Shan. The photocatalytic properties of nanocrystalline TiO2 in the rutile phase[J]. Acta Chimica Sinica, 2001, 59(11): 1908-1913.

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金红石相二氧化钛纳米晶的光催化活性

The photocatalytic properties of nanocrystalline TiO2 in the rutile phase

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