Article ID Journal Published Year Pages File Type
47156 Applied Catalysis B: Environmental 2010 6 Pages PDF
Abstract

ZnWO4 photocatalysts with various morphologies were synthesized by a template-free hydrothermal synthesis process. The morphologies had a significant influence on the photocatalytic activity for methylene blue and Rhodamine B degradation. ZnWO4 nanorods with a highly [1 0 0] preferred orientation, obtained at pH 10, exhibited the highest photocatalytic activity among all the samples. This kind of nanorods had the most planes along the [1 0 0] direction—(0 1 0) and (0 1 1) planes, which meant most (0 1 0) and (0 1 1) planes exposed in ZnWO4 phase. Basis on the analysis of crystal plane and hydrogen-related defects, the (0 1 0) and (0 1 1) planes could speculate to be more active for photodegradation.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights▶ ZnWO4 with various morphologies were synthesized by a hydrothermal process. ▶ The morphologies had a significant influence on the photocatalytic activity. ▶ ZnWO4 nanorods with a highly [1 0 0] orientation exhibited the highest activity. ▶ The (0 1 0) and (0 1 1) planes could be more active for photodegradation.

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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