Preparation of spherical and dendritic CdS@TiO₂ hollow double-shelled nanoparticles for photocatalysis

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• 作者：Guanhua Sun^a ; ^b ; Chaosheng Zhu^a ; Jingtang Zheng^a ; ^{jtzheng03@163.com" class="auth_mail" title="E-mail the corresponding author} ; Bo Jiang^a ; Huacheng Yin^a ; Han Wang^a ; Shi Qiu^a ; Jianjun Yuan^a ; ^b ; Mingbo Wu^a ; Wenting Wu^a ; Qingzhong Xue^a
• 关键词：Crystal growth ; Nanoparticles ; Core&ndash ; shell ; Photocatalysis
• 刊名：Materials Letters
• 出版年：2016
• 出版时间：1 March 2016
• 年：2016
• 卷：166
• 期：Complete
• 页码：113-115
• 全文大小：1540 K

文摘

Spherical and dendritic CdS@TiO₂ hollow double-shelled nanoparticles (HDNPs) with visible light photocatalytic activity were synthesized via sol–gel and wet-chemical approach respectively. The morphology, composition, size of the nanoparticles and crystal structure of the synthesized CdS@TiO₂ HDNPs were characterized by XRD, TEM, and SAED. The results showed that morphologies and crystalline phases of as-prepared CdS@TiO₂ HDNPs mainly depended on the synthesis conditions such as temperature and pressure. Compared with the typical core–shell of PS@TiO₂ and PS@CdS, CdS@TiO₂ HDNPs, their photocatalytic activity was obviously enhanced with maximum degradation efficiency of RhB as high as 99.9%.