标题：One-step synthesis and assembly of one-dimensional parallel chains of CdS nanoparticles at the air–water interface templated by 10,12-pentacosadiynoic acid supermolecules
作者：Zheng Zhang;Lei Wang;Sanxia Kou;Yong-Ill Lee;Jingcheng Hao;Hong-Guo Liu
作者机构：Key Laboratory for Colloid and Interface Chemistry of Education Ministry, Shandong University, Jinan 250100, PR China;Key Labora
来源：Journal of Colloid and Interface Science
关键词：Langmuir monolayer;Air–water interface;CdS nanoparticles;One-dimensional chains
摘要：Regular one-dimensional (1D) parallel chains composed of CdS nanoparticles with cubic zinc blende crystal structure were prepared at the air/water interface via one-step synthesis and assembly process. These nanostructures were produced through an interfacial reaction between Cd~(2+) ions in the aqueous solution of cadmium acetate and H_2S in the gaseous phase under Langmuir monolayers of 10,12-pentacosadiynoic acid (PDA). It was demonstrated that PDA molecules self-assembled into parallelly aligned linear supermolecules at the air/water interface with the aid of p–p interactions and acted as templates for the formation of the superstructures. The experimental conditions including temperature and reaction time have great influences on the superstructure formation and the parameters of the parallel chains.