沉积TiO_2膜的成型活性炭的制备及性能研究  

Study on Preparation and Performance of Formed Activated Carbon with Deposited TiO_2 Thin Films

作　　者：余学强[1] 刘莹[1] 张国栋[1] 

机构地区：[1]安徽工业大学化学与化工学院,安徽马鞍山243002

出　　处：《安徽工业大学学报（自然科学版）》2008年第3期279-283,共5页Journal of Anhui University of Technology（Natural Science）

摘　　要：以粉末活性炭为基料,煤焦油为粘结剂,淀粉为造孔剂,添加适量的羧甲基纤维素(CMC),经稳定化、炭化、活化等工艺制备成型活性炭(FAC),并在表面沉积具有光催化活性的TiO2膜。考察原料组成及热处理温度对FAC机械强度、透水性及吸附性能的影响。当成型活性炭原料配比(质量分数)为粉末活性炭60%,焦油28%,淀粉6%,CMC6%,稳定化温度为270℃,炭化温度500℃,活化温度800℃,FAC性能较好。TiO2膜的沉积提高了FAC的强度,吸附性能和透水性变化不大。Formed activated carbon （FAC） was made form powder activated carbon using tar as bonding agents, amylum as aperture-made agents, carboxymethyl cellulose （CMC） as additive. Influence of raw material composition and heat treatment temperature on mechanic intensity, water infiltration adsorption of methylene-blue of FAC was investigated. It is indicated that, preferably performance of FAC was found with the 60% content of powder activated carbon, 28% of tar, 6% of amylum,6% of CMC, stability temperature at 270 ℃, carbonization temperature at 500 ℃, activation temperature at 800 ℃. Deposition of TiO2 enhanced the mechanic intensity of FAC with no influence of adsorption of methylene-blue and water infiltration.

关 键 词：成型活性炭 制备 沉积 TIO2膜 热处理 

分 类 号：TB32[一般工业技术—材料科学与工程]