H_2SO_4/H_2O_2改性玉米秸秆活性炭对甲苯吸附性能的影响  

The Effect of Adsorption Behavior of Methylbenzene on to H_2SO_4/H_2O_2 Modify Corn Stalk Activated Carbon

作　　者：刘耀源[1,2] 邹长武[1,2] 刘莎[1,2] 王开鹏[1] 曾毅[1] 陈小芳[1] 唐润芝[1] 

机构地区：[1]成都信息工程学院资源环境学院,成都610225 [2]大气环境模拟与污染控制四川省高校重点实验室,成都610225

出　　处：《科学技术与工程》2014年第23期126-129,共4页Science Technology and Engineering

基　　金：大气环境模拟与污染控制四川省重点实验室开放课题(ZZKT2013004);高原大气与环境四川省重点实验室开放课题(PAEKL-2013-Y4);成都信息工程学院大学生创新创业训练项目(CX201316)资助

摘　　要：利用玉米秸秆制备活性炭,并对其进行H2SO4/H2O2改性;再运用BET模型和Boehm滴定法测定活性炭孔隙结构和表面性质,研究其改性前后对甲苯的吸附性能、脱附性能、表面性质和孔隙结构的变化。结果表明,经H2SO4/H2O2改性后,活性炭表面酸性官能团含量提高150.4%,碱性官能团含量基本不变,比表面积与孔容降低,对甲苯的吸附量降低。Corn stalk was prepared for activated carbon（AC）, then modified it by H2SO4/H202（ACH）. Surface structure and surface property were studied by BET model and Boehm titration. The toluene adsorption, desorption capacity, surface structure and surface property of ACH were studied. The results showed that the content of the surface acid functional group increased by 150. 4% and soda changed volume and saturated absorption of ACH for methylbenzene all reduced. slightly; specific surface area, pore

关 键 词：活性炭 玉米秸秆 甲苯 双氧水 硫酸 改性 

分 类 号：X511[环境科学与工程—环境工程]