Effect of Metal Gradient In Nano Wall of Stratified Type Photocatalyst

Abstract:

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Objective of study was the development of core-shell type ZnS-CdS photocatalyst with the stratified morphology. To form the stratified morphology, condition of the precursor is extremely important. For this purpose, three types of precursors, thus core-shell type, egg-shell type and uniform type, was tried to synthesize by utilizing the results of the calculation. The size of the synthesized precursor particles was about 40-100 nm. Main phase of the particle was gradually changed from ZnO (pH8.0) to Cd(OH)2 (pH9.5). Detailed analysis of the synthesized precursor was clearly demonstrated that these have the crystalline structure and each metal element was co-existed in one particle. Therefore, it could be concluded that core-shell type or uniform type precursor was successfully synthesized. Core-shell type ZnS-CdS stratified photocatalyst could be successfully synthesized by sulfurization for 1h, and it shows the high photocatalytic activity under visible light irradiation.

Info:

Periodical:

Materials Science Forum (Volumes 631-632)

Edited by:

Akira Kawasaki, Akinaga Kumakawa and Masayuki Niino

Pages:

339-344

DOI:

10.4028/www.scientific.net/MSF.631-632.339

Citation:

T. Hayashi et al., "Effect of Metal Gradient In Nano Wall of Stratified Type Photocatalyst ", Materials Science Forum, Vols. 631-632, pp. 339-344, 2010

Online since:

October 2009

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Price:

$35.00

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