复合型TiO2/AC光催化剂的制备及表征  

Preparation and characterization of bamboo activated carbon supported TiO_2 photocatalyst

作　　者：卢辛成[1,2] 蒋剑春[1,2] 孙康[1,2] 崔丹丹[1,2] 

机构地区：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室 [2]江苏省生物质能源与材料重点实验室,江苏南京210042

出　　处：《南京林业大学学报（自然科学版）》2010年第6期119-122,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：“十一五”国家科技支撑计划项目(2006BAD18B10,2006BAD19B06);中央级公益性科研院所基本科研业务费专项资金项目(CAFINT2007C16,CAFINT2009K02)

摘　　要：以竹活性炭为载体,采用溶胶-凝胶法实现催化剂的负载制备了复合型TiO2/AC光催化剂,并采用N2等温吸附、扫描电镜(SEM)、X-射线衍射(XRD)、热重-差热分析法(TG-DSC)、傅里叶变换红外光谱法(FT-IR)等分析手段对其结构进行了表征。结果表明:TiO2的负载使得竹活性炭的比表面积、孔容发生了变化,由改性前的1 181.9 m2/g和0.670 cm3/g分别降至979.0 m2/g和0.611cm3/g;TiO2以化学键的方式在竹活性炭表面杂乱分布,并且不易脱落;制备的TiO2/AC为锐钛矿晶型,晶粒尺寸为18.4 nm。Bamboo activated carbon（AC）-supported TiO2 photocatalyst was prepared by sol-gel method.The TiO2/AC was characterized by N2 adsorption isotherm,scanning electron microscopy,X-ray diffraction,TG-DSC,FT-IR and etc..The results showed that the specific surface area and pore volume of AC were reduced from 1 181.9 m2/g and 0.670 cm3/g to 979.0 m2/g and 0.611 cm3/g,respectively after modification.TiO2 was loaded on AC by chemical bond and combined firmly.The average particle diameter of TiO2/AC was 18.4 nm and its crystal form was similar to anatase.

关 键 词：竹活性炭 二氧化钛 TIO2/AC 溶胶-凝胶法 

分 类 号：TQ351.21[化学工程]