Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 358, Issue 1, Pages 102-108Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2011.02.052
Keywords
Sphere-like; Zinc ferrite; Template-free; Photocatalytic; Hydroxyl radicals
Categories
Funding
- National Nature Science Foundation of China [20837001, 20877013, NSFC-RGC 21061160495]
- National High Technology Research and Development Program of China (863 Program) [2007AA061402]
- Major State Basic Research Development Program of China (973 Program) [2007CB613306]
Ask authors/readers for more resources
Spinel zinc ferrite nanospheres with diameters of about 212 nm were synthesized in high yield via a general, one-step and template-free solvothermal route. The prepared nanospheres had cubic spinel structure and exhibited good size uniformity and regularity. The absorption edge of ZnFe2O4 nanospheres shifted to a higher energy in the UV-Vis absorption spectrum compared with that of ZnFe2O4 nanopartides. The ZnFe2O4 nanospheres exhibited remarkably high surface photovoltage response in the UV and visible region, suggesting the enhanced separation ability of photogenerated electrons and holes. The dramatically enhanced photocatalytic activity of the ZnFe2O4 nanospheres was evaluated in the decomposition of rhodamine B under Xe lamp irradiation. Hydroxyl radicals on the surface of photoilluminated ZnFe2O4 nanospheres were detected by the photoluminescence technique, which suggested that hydroxyl radicals played an important role in the photocatalytic reaction. This study provided new insight into the design and preparation of functional nanomaterials with sphere structure in high yield, and the as-grown architectures demonstrated an excellent ability to remove organic pollutants in wastewater. (c) 2011 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available