氧化亚铜微/纳米结构的形貌可控制备及光催化和防污性能

Dependence of Micro/Nano-Cu_2O Structures: Controlled Morphology Synthesis, and Photocatalytic and Antifouling Property

利用简便易行的液相法,采用葡萄糖为还原剂,通过调整加料方式、反应温度、NaOH用量等条件,实现具有{110}截面八面体、八面体和短足形等形貌的Cu2O微/纳米结构的可控制备,运用透射电子显微镜、扫描电子显微镜、紫外可见分光光度计等对产物进行组成、结构、形貌和光响应的表征,对Cu2O的形貌结构和生长机理进行研究。对比和优化了具有不同形貌的Cu2O微/纳米结构对甲基橙染料的光催化性能。将不同形貌的微/纳米Cu2O作为防污剂复配的自抛光防污涂料,涂层磨蚀率、接触角与实海挂板实验证明该涂料具有良好的防污性能。

A series of Cu2 O micro/nano-structures were synthesized by a simple liquid phase reduction technique with copper sulfate as a copper source and glucose monohydrate as a reducer. The effect of temperature and feeding manners of reagents on morphology and particle size of Cu2 O was studied. XRD, TEM, SEM and UV-Vis spectroscopy were used to characterize the crystallinity, morphology and light response of the materials. The results show three extraordinary morphologies： short hexapods, {110} truncated octahedron, and octahedron. The photocatalytic behaviors of Cu2 O crystals were evaluated by suing the degradation of methyl orange（MO） as a target reaction. Antifouling paints were prepared by using Cu2 O with different morphologies as the marine antifouling agents, and the results indicate that prepared paints have good antifouling property.