Phosphate-assisted one-pot synthesis of zirconium phosphate-containing mesoporous silica with unique photodegradation ability for rhodamine B†,10.1039/C4RA07021F

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Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Phosphate-assisted one-pot synthesis of zirconium phosphate-containing mesoporous silica with unique photodegradation ability for rhodamine B†

Jiu-Yang Yang,Chun-Ming Zheng,Yan-Qing Wang

RSC Advances Pub Date : 08/26/2014 00:00:00 , DOI:10.1039/C4RA07021F

Abstract

A facile one-pot method for zirconium phosphate-containing mesoporous silica (ZrP–MS) using sodium silicate and zirconium oxychloride was reported under acidic P123 aqueous solution followed by an aid of phosphate. The obtained ZrP–MS material is a new type of mesoporous silica composite, which had a structure similar to SBA-15 but with larger mean pore diameter. Zirconium phosphate was uniformly distributed in the silica, and it was found to be a unique photocatalyst for the degradation of rhodamine B (RhB) by comparison with ZrP–MS, silver-activated ZrP–MS and silver phosphate–mesoporous silica composites on degradation of RhB and methyl orange, in which the reaction kinetics, luminescence properties of the final products of RhB degradation, fluorescence of ZrP–MS-adsorbed RhB, and free radical capture experiment were performed. The formation and photodegradation mechanism of ZrP–MS are discussed.