Preparation of TiO2/Black Talc Composite Photocatalyst and the Research on Its Adsorption-Degradation Coupling Effects

Huan Shuai; Yuxin Wang; Jiao Wang; Gaoxiang Du; Daimei Chen; Yu Liang

doi:10.3390/ma14206038

Preparation of TiO₂/Black Talc Composite Photocatalyst and the Research on Its Adsorption-Degradation Coupling Effects

Materials (Basel). 2021 Oct 13;14(20):6038. doi: 10.3390/ma14206038.

Authors

Huan Shuai^{1

2}, Yuxin Wang¹, Jiao Wang³, Gaoxiang Du^{1

2}, Daimei Chen¹, Yu Liang⁴

Affiliations

¹ School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
² Beijing Yiyi Star Technology Co., Ltd., Beijing 100089, China.
³ School of Basic Education, Beijing Polytechnic College, Beijing 100042, China.
⁴ School of Materials Science and Technology, Shenyang University of Chemical Technology, Shenyang 110142, China.

Abstract

In this paper, a TiO₂/black talc composite photocatalyst was prepared by the sol-gel method using TBOT as titanium source and black talc as carrier. Rhodamine B was used as the targeted pollutant to study the adsorption role of carbon in black talc. The results showed that with the adsorption-degradation cycles, the illumination time can be reduced by 40%. The adsorption rate and degradation rate of the composite photocatalyst was also increased. The degradation rate of Rhodamine B reached more than 95%, which fully shows the synergistic effect between TiO₂ nanoparticles and black talc. In this way, the adsorption-degradation coupling of the photocatalyst could be realized.

Keywords: black talc; characteristic adsorption; nano-TiO2 particles; photodegradation; synergistic effect.

Grants and funding

No. KZ201910853043 and No. 2021-MS-260/the Beijing Municipal Education Commission Science and Technology Plan Key Project (No. KZ201910853043) and Liaoning Provincial Natural Science Foundation (No. 2021-MS-260).