光催化还原法制备铜基二氧化钛(Cu/TiO_2)  

Preparation of Copper-Based Photocatalytic Reduction of Titanium Dioxide(Cu/TiO_2)

作　　者：罗俊旋[1] 曾伟华[1,2] 徐游[1] 汤皎宁[1] 胡军辉[2,3] 

机构地区：[1]深圳大学深圳市特种功能材料重点实验室,广东深圳518060 [2]深圳华中科技大学研究院特种材料应用开发实验室,广东深圳518116 [3]广州门德纳米科技有限公司,广东广州511400

出　　处：《广东化工》2011年第6期11-13,共3页Guangdong Chemical Industry

基　　金：广东省科技计划项目(2008A010500001)

摘　　要：文章通过以胶体二氧化钛以及二水合氯化铜为主要原料,采用不同配方,利用光催化还原的方法制备出纳米铜基二氧化钛(Cu/TiO2)。采用紫外线分光光度计、激光粒度仪、XRF等对Cu/TiO2复合材料的吸光度、平均粒径以及含铜量进行表征,选择最优的制备方案。同时使用TEM、SEM等,观察合成材料的微观形貌,初步研究光催化还原法的合成机理,探究复合材料的结合方式。结果表明,采用光催化还原法是制备Cu/TiO2的有效方法,其中加入30 mL 8℅TiO2胶体,0.3 gCuCl2.2H2O和40 mL37%甲醛溶液为最佳合成Cu/TiO2配方,其铜含量可达到19.58%,平均粒径21.2 nm。合成材料两组分分布均匀,无团聚现象出现。In the paper,colloidal titanium dioxide and copper chloride dihydrate as the main raw material,different formulations,methods of use of photocatalytic reduction of titanium dioxide and nano copper（Cu/TiO2）.Using UV spectrophotometer,laser particle size analyzer,XRF and other composite materials on the Cu/TiO2 absorbance,the average particle size and to characterize the copper content,choose the best preparation program.At the same time using TEM,SEM,was observed morphology of synthetic materials,a preliminary study of the synthesis of photocatalytic reduction mechanism to explore the binding mode of composite materials.The results show that the photocatalytic reduction method was an effective way to prepare Cu/TiO2,which joined the 30 mL 8 ℅ TiO2 colloid,0.3 gCuCl2？2H2O and 40 mL 37 % formaldehyde solution as the best synthesis Cu/TiO2 formula,the copper content of up to 19.58 %,the average size of 21.2 nm.Composites two points distribution,no reunion phenomenon.

关 键 词：关催化 制备 纳米 铜基二氧化钛 

分 类 号：TQ426.6[化学工程]