Low-temperature synthesis and photocatalytic activity of TiO2 pillared montmorillonite

Langmuir : the ACS Journal of Surfaces and Colloids
Gao K ZhangJun W Xie

Abstract

TiO2 pillared montmorillonite (PILM) was synthesized by hydrolyzing TiO2 sol into the interlayers of montmorillonite (MMT) at low temperatures. It is novel that all the as-prepared catalysts without calcination show a high photocatalytic activity for the degradation of acid red G (ARG) under UV light irradiation. The as-prepared powders were characterized by XRD, TEM, UV-vis diffuse reflectance spectroscopy, BET, and FT-IR. The X-ray diffraction analysis indicated that the (001) plane of MMT in the composites disappeared and that the layered structure became disordered, which also was confirmed by the TEM photographs. The UV absorption edge of the composites shows a red-shift in comparison to that of pure TiO2 particles. The obtained catalyst has the highest photocatalytic activity when the composite temperature is 70 degrees C, which could be attributed to the synergetic effects of the adsorbability of MMT and the photocatalytic property of TiO2 in it.

References

Jan 8, 1999·Journal of Colloid and Interface Science·Z DingP F Greenfield
Jun 1, 1985·Environmental Science & Technology·D F Ollis

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Citations

Mar 25, 2014·Physical Chemistry Chemical Physics : PCCP·Jin Liu, Gaoke Zhang
Apr 5, 2013·Angewandte Chemie·Gang WangMyung-Hwan Whangbo
Jun 5, 2015·Journal of Environmental Sciences (China)·Tingting ZhangJiang Yu
Mar 31, 2012·Journal of Colloid and Interface Science·Yanqing YangWei Xu
Jul 24, 2012·Journal of Colloid and Interface Science·Chengli Huo, Huaming Yang
Jun 19, 2013·International Journal of Molecular Sciences·Qingqing WangQufu Wei
Apr 18, 2017·Proceedings. Mathematical, Physical, and Engineering Sciences·Yixian WangMichael V Mirkin
Jul 14, 2013·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Ana C FernandesJoão Pires
Dec 4, 2020·Food Chemistry·Qian ZhangNailiang Liu
Jan 29, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Hefeng ChengXiaoyang Zhang

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