Photocatalytic behaviors of porous ZnO hierarchical structures fabricated via a precursor-pyrolyzing route

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

5 Scopus Citations
View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)89-95
Journal / PublicationJournal of Materials Science: Materials in Electronics
Volume24
Issue number1
Publication statusPublished - Jan 2013

Abstract

It is of significance to develop porous ZnO photocatalysts with high activity. In this paper, three kinds of hierarchical ZnO porous structures were fabricated by a precursor transformation of hierarchical Zn5(CO 3)2(OH)6 structures synthesized in the zinc salts and urea aqueous solution. The microstructure characterization demonstrates that the obtained ZnO materials are porous structure and quasi-single-crystal nature. The solid UV-vis and PL spectra indicate that the porous ZnO with different morphologies have similar photoabsorption ability but different ratioes of green-to-UV emission, respectively. These porous ZnO samples with different structures exhibit different photocatalytic efficiency. More importantly, the photocatalytic activity of porous ZnO fabricated by the precursor-pyrolyzing method is inversely proportional to the content of surface defects under other influence factors comparable. This result inconsistent with references was also discussed. © 2012 Springer Science+Business Media, LLC.

Citation Format(s)

Photocatalytic behaviors of porous ZnO hierarchical structures fabricated via a precursor-pyrolyzing route. / Tong, Yanhua; Cao, Feng; Tang, Peisong; Chen, Haifeng; Chu, Paul K.

In: Journal of Materials Science: Materials in Electronics, Vol. 24, No. 1, 01.2013, p. 89-95.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review