Preparation, characterization and application in deep catalytic ODS of the mesoporous silica pillared clay incorporated with phosphotungstic acid

Baoshan Li; Zhenxing Liu; Jianjun Liu; Zhiyuan Zhou; Xiaohui Gao; Xinmei Pang; Huiting Sheng

doi:10.1016/j.jcis.2011.07.025

Preparation, characterization and application in deep catalytic ODS of the mesoporous silica pillared clay incorporated with phosphotungstic acid

J Colloid Interface Sci. 2011 Oct 15;362(2):450-6. doi: 10.1016/j.jcis.2011.07.025. Epub 2011 Jul 20.

Authors

Baoshan Li¹, Zhenxing Liu, Jianjun Liu, Zhiyuan Zhou, Xiaohui Gao, Xinmei Pang, Huiting Sheng

Affiliation

¹ State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China. bsli@mail.buct.edu.cn

PMID: 21807374
DOI: 10.1016/j.jcis.2011.07.025

Abstract

Mesoporous silica pillared clay (SPC) materials with different contents of H(3)PW(12)O(40) (HPW) heteropoly acid were synthesized by introducing HPW into clay interlayer template in an acidic suspension using sol-gel method. Samples with similar HPW loadings were also prepared by impregnation method using SPC as the support. The results of the characterizations showed that HPW was dispersed more homogeneously in the encapsulated samples than in the impregnated samples. The encapsulated materials exhibited better catalytic performance than the impregnated samples in oxidative desulfurization of dibenzothiophene-containing model oil. The sulfur removal reached up to 98.6% for the model oil under the experiential conditions.