Author(s)

Xiaoyan Huang¹, Yan Xue^1,2, Xin Gao¹, Baojun Li¹, Yiqiang Wen^1*, Xiangyu Wang^1*

¹Institute of Industrial Catalysis, College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.
²Biological and Chemical Engineering College, Nanyang Institute of Technology, Nanyang 473004, China.

A simple, quick, sensitive, accurate and precise method has been developed for evaluating the catalytic active sites of titanium silicalite-1 (TS-1). The catalytic active sites of titanium silicalite zeolite depend on the effectively active species (EAS) in TS-1 which react with specific substrates quickly. However, the EAS was hard to be evaluated with conventional instruments and techniques in the past. In this paper, the EAS was formed in TS-1 upon interaction with H2O2, and its presence could be confirmed by UV-vis spectroscopy which has an absorption peak at 385 nm. The absorbance at 385 nm was found to be linearly related to time, and when the absorbance and the increasing rate of absorbance (k) increased, the catalytic performance of TS-1 enhanced.

Effectively Active Species (EAS), Titanium Silicalite Zeolite, UV-Vis Spectrum, Absorbance

Huang, X. , Xue, Y. , Gao, X. , Li, B. , Wen, Y. and Wang, X. (2015) Development of an Analytical Method for Evaluating the Catalytic Active Sites of Titanium Silicalite Zeolite. Journal of Materials Science and Chemical Engineering, 3, 1-6. doi: 10.4236/msce.2015.36001.