Atomic and Electronic Structure of Quaternary CdxZnyS未O纬 Nanoparticles Grown on Mordenite

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• 作者：Oscar E. Jaime-Acu帽a ; Humberto Villavicencio ; Jes煤s A. D铆az-Hern谩ndez ; Vitalii Petranovskii ; Manuel Herrera ; Oscar Raymond-Herrera
• 刊名：Chemistry of Materials
• 出版年：2014
• 出版时间：November 11, 2014
• 年：2014
• 卷：26
• 期：21
• 页码：6152-6159
• 全文大小：578K
• ISSN：1520-5002

文摘

Atomic, electronic, and compositional structure of quaternary Cd_xZn_yS_未O_纬 semiconductor nanoparticles grown on synthesized mordenite-type zeolite (MOR) is discussed in this work. Semiconductor鈥揗OR composites were synthesized using two different methods: by Cd²⁺-Zn²⁺-ion exchange with synthesized sodium-mordenite, and by direct synthesis of zinc/cadmium-mordenite through a variant of the sol鈥揼el technique, both followed by sulfidation treatment in H₂S flow. We show that Cd_xZn_yS_未O_纬 semiconductor nanoparticles grow strongly bonded, revealing a core鈥搒hell-type arrangement with a wide-open (a = 8.33 脜) cubic fcc structure, and constrained by the MOR surface structure. Because of the core鈥搒hell-type nanoparticles and their observed structural and optical properties, these photoactive composites are promising candidates for applications in the fields of photocatalysis and optoelectronics.