盐酸酸洗水活化法一步制备磁性活性炭（英文）  

Fabrication of magnetic activated carbons from corn cobs using the pickle liquor from the surface treatment of iron and steel

作　　者：王芳[1] 党艳秋[1] 田勋 Steven Harrington 马雷 马彦青 WANG Fang;DANG Yan-qiu;TIAN Xun;Steven Harrington;MA Lei;MA Yan-qing(Key Laboratory of Materials Chemistry in Binzhou City,Department of Chemical Engineering and Safiy Binzhou University,Binzhou 256600,China;School of Precision Instrument ＆ Opto-Electronics Engineering,Tianjin University,Tianjin 300072,China;Tianjin International Center for Nanoparticles and Nanosystems,Tianjin University,Tianjin 300072,China)

机构地区：[1]滨州学院化学与安全学院、滨州市材料重点实验室,山东滨州256600 [2]天津大学精密仪器与光电子工程学院,天津300072 [3]天津大学天津纳米颗粒与纳米系统国际研究中心,天津300072

出　　处：《新型炭材料》2018年第4期303-309,共7页New Carbon Materials

基　　金：山东省自然科学基金项目(ZR2014BL014,ZR2015BL012);山东省高等学校科技发展计划项目(J14LC54);滨州市科技计划发展项目(2014ZC0212,2014ZC0321);滨州学院科研基金项((BZXYHZ20161010,BZXYL1801,201610449035);石河子大学基金项目(SRP2015118,201510759021,2015BTRC002).

摘　　要：以盐酸酸洗水为活化剂,玉米芯为为碳源,通过简单一步法制备出一种新型磁性活性炭。详细研究了该材料不同条件下甲基橙的吸附性能。结果表明,973 K活化1 h所得磁性活性炭具有较大的比表面积(784.76 m^2/g),298 K甲基橙的吸附量高达555.56 mg/g。此外,磁性活性炭含有赤铁矿和磁铁矿易于从染料废水中分离。Corn cobs were impregnated with the pickle liquor from the surface treatment of iron and steel at ambient temperature for 24 h,dried at 393 K for 12 h and carbonized at 573,773 and 973 K for 1 h to obtain magnetic activated carbons（ MACs）. The adsorption of methyl orange（ MO） onto the MACs was investigated under different conditions. Results show that the surface area of the MACs increases with carbonization temperature from 423. 5 to 784. 76 m2g（-1）. The MACs consist of hematite（ Fe2O3） and magnetite（ Fe3O4）. The MAC obtained at 973 K has the highest MO monolayer adsorption capacity of 555. 56 mg g（-1） at 298 K in a water sample containing MO dye. The adsorption is endothermic and obeys pseudo-first-order kinetics. The MACs can be easily separated from the dye water by an external magnet.

关 键 词：玉米芯 碳质材料 酸洗水 甲基橙 

分 类 号：TQ127.11[化学工程—无机化工]