Heterostructured Tin oxide-pillared tetratitanate with enhanced photocatalytic activity

Bin Li; Bi-Zhou Lin; Ou Zhang; Li-Mei Fu; Hong Liu; Yi-Lin Chen; Bi-Fen Gao

doi:10.1016/j.jcis.2012.07.003

Heterostructured Tin oxide-pillared tetratitanate with enhanced photocatalytic activity

J Colloid Interface Sci. 2012 Nov 15;386(1):1-8. doi: 10.1016/j.jcis.2012.07.003. Epub 2012 Jul 16.

Authors

Bin Li¹, Bi-Zhou Lin, Ou Zhang, Li-Mei Fu, Hong Liu, Yi-Lin Chen, Bi-Fen Gao

Affiliation

¹ Key Laboratory for Functional Materials of Fujian Higher Education, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, PR China.

PMID: 22858048
DOI: 10.1016/j.jcis.2012.07.003

Abstract

An effective active heterostructured photocatalyst of porous SnO(2)-pillared tetratitanate nanocomposite is synthesized by assembling tetratitanate nanosheets with SnO(2) nanoparticles via an exfoliation-restacking route. The nanocomposite was characterized by powder X-ray diffraction, high-resolution transmission electron microscope, thermogravimetric analysis, UV-vis DRS, X-ray photoelectron spectroscopy, and N(2) adsorption-desorption measurements. It was found that the pillared nanaocomposite is mesoporous with a gallery height of about 2 nm and a specific surface area of 154 m(2)/g. The pillared nanaocomposite exhibited enhanced photocatalytic activity in the photodegradation of Rhodamine B under UV light irradiation. The improved performance is attributed to the electronic coupling between the host and the guest components, as well as its high surface area and mesoporosity.