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Controllable TiO 2 phase transformation between rutile and anatase: the case of FF– and Cl Cl–

DAPENG LI1, SUXIANG GE1,* , CAIFENG ZHAO1, JINGRAN HUANG1, BAOJUN HUANG1, YANGE ZHANG1, ZHI ZHENG1

Affiliation

  1. Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Henan 461000, China

Abstract

Although many literatures have reported that F– and Cl– ions could influence the phase formation of TiO2, the specific role of F– and Cl– in the phase transformation between rutile and anatase has still not been clarified. In this study, for the first time we demonstrate that Cl– could adjust the phase transformation between rutile and anatase mainly by controlling the hydrolysis rate of Ti 4+4+. T he F– could control the trans formation from rutile to anatase phase at room temperature, which should be ascribed to its strong coordination effect with Ti 4+ This find ing provide s a simple route for controlling TiO 2 phase transformation between rutile and anatase..

Keywords

F, Cl, TiO2, Phase transformation, Rutile, Anatase.

Citation

DAPENG LI, SUXIANG GE, CAIFENG ZHAO, JINGRAN HUANG, BAOJUN HUANG, YANGE ZHANG, ZHI ZHENG, Controllable TiO 2 phase transformation between rutile and anatase: the case of FF– and Cl Cl–, Optoelectronics and Advanced Materials - Rapid Communications, 10, 9-10, September-October 2016, pp.765-768 (2016).

Submitted at: July 12, 2015

Accepted at: Sept. 29, 2016