摘要
采用比表面积及孔径分析技术,测定了浸渍法制备的TiO2/竹炭复合体光催化材料的氮吸附等温线,进而运用BET理论计算了其比表面积、总孔容积和平均孔径分别为359.81m2/g、0.3172cm3/g和3.526nm。同时,依据BJH模型分析了其中孔的孔隙结构参数和孔径分布。结果表明:经过纳米TiO2改性的竹炭不仅保留了竹炭固有的孔隙结构,而且其比表面积、孔容积、孔径都有所增加。经纳米TiO2改性制备的光催化材料的中孔孔容积比竹炭提高了65.86%。
An TiO2 /bamboo charcoal composite photocatalyst was prepared by solved-dipping method and its physical properties,such as surface area（359. 81 m2 /g）,total pore volume （0. 317 2 cm3 /g）,and average pore diameter （3. 526 nm）,were calculated with BET method in accordance with N2 adsorption isotherm,which were investigated with the surface area and porosimetry analyzer. Meanwhile,the mesopore structural parameters and mesopore diameter distribution curves of the photocatalyst were derived from the Barret-Joyner-Halenda （BJH） model. The results showed that TiO2-loaded bamboo charcoal retained the inherent porous structure of bamboo charcoal,meanwhile,the surface area,porous volume and pore diameter were increased slightly. The photocatalyst had more cumulative volume of pores than bamboo charcoal by 65. 86 % .
出处
《南京林业大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第3期117-120,共4页
Journal of Nanjing Forestry University：Natural Sciences Edition
基金
江苏省科技支撑计划(BE2006348)
"十一五"国家科技支撑计划(2006BAD19B0505)
关键词
纳米TIO2
竹炭
纳米改性竹炭
比表面积
孔隙结构
nano-TiO2
bamboo charcoal
TiO2-loaded bamboo charcoal
surface area
porous structure
