TY - GEN
T1 - Effect of metal gradient in nano wall of stratified type photocatalyst
AU - Hayashi, Tsugumi
AU - Baba, Yohei
AU - Taga, Toshiharu
AU - Yokoyama, Shun
AU - Suzuki, Hiroaki
AU - Takahashi, Hideyuki
AU - Niino, Masayuki
AU - Tohji, Kazuyuki
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - CdS
KW - Core-shell
KW - Photocatalyst
KW - ZnS
UR - http://www.scopus.com/inward/record.url?scp=75849159401&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=75849159401&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.631-632.339
DO - 10.4028/www.scientific.net/MSF.631-632.339
M3 - Conference contribution
AN - SCOPUS:75849159401
SN - 0878493077
SN - 9780878493074
T3 - Materials Science Forum
SP - 339
EP - 344
BT - Multiscale, Multifunctional and Functionally Graded Materials
PB - Trans Tech Publications Ltd
T2 - 10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs
Y2 - 22 September 2008 through 25 September 2008
ER -