Microwave-Assisted Synthesis and Photocatalytic Activity of Quantum-Sized ZnO

Abstract:

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ZnO was prepared using zinc acetate dehydrate (Zn(CH3COO)2·2H2O) and lithium hydroxide monohydrate (LiOH·H2O) as raw material through a microwave-assisted sol-gel method. The prepared ZnO presents the wurtzite structure. The influence of different reaction temperature and heating time to the size of ZnO was researched. The photocatalytic activity of ZnO was evaluated by the degradation rate of C.I. Reactive Blue 4 in aqueous solution. The particle size of ZnO is about 4.33 nm at the reaction condition of 50°C for 10 min and the photocatalytic performance is the best. The degradation rate of C.I. Reactive Blue 4 could exceed 75% in 30 min at room temperature when the initial concentration of C.I. Reactive Blue 4 was 40 mg/L and the concentration of the quantum-sized ZnO was 0.1 g/L.

Info:

Periodical:

Advanced Materials Research (Volumes 284-286)

Main Theme:

Edited by:

Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu

Pages:

866-870

DOI:

10.4028/www.scientific.net/AMR.284-286.866

Citation:

W. G. Xu et al., "Microwave-Assisted Synthesis and Photocatalytic Activity of Quantum-Sized ZnO", Advanced Materials Research, Vols. 284-286, pp. 866-870, 2011

Online since:

July 2011

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Price:

$35.00

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