废旧棉织物活性炭的制备与性能  

Preparation and properties of activated carbon from waste cotton fabrics

作　　者：许巧丽[1] 王淑花[1] 李芬[1] 武琳婷 史晟[1] 戴晋明[1] 

机构地区：[1]太原理工大学轻纺工程学院,山西太原030024

出　　处：《纺织学报》2015年第10期73-79,共7页Journal of Textile Research

基　　金：山西省自然科学基金项目(2014011016-5);太原理工大学研究生创新基金项目(2013 B031)

摘　　要：以日常生活中废旧棉织物(WCF)为原料,采用氯化锌法活化制备了废旧棉织物活性炭(AC-WCF),考察了氯化锌质量分数、氯化锌浸渍时间、活化温度和活化时间4个因素对AC-WCF吸附性能的影响。采用比表面积及微孔/中孔分析仪、扫描电镜(SEM)和红外光谱仪(FT-IR)对AC-WCF样品进行表征。结果表明,AC-WCF各项吸附性能良好,该条件下制备的AC-WCF的比表面积高达1 462 m2/g,总孔容积为0.78 cm3/g,平均孔径为2.1 nm,碘吸附值为1 193.8 mg/g,亚甲基蓝吸附值为25 m L/0.1 g,苯酚吸附值为160.7 mg/g,且对模拟染料废水具有良好的脱色效果。Waste cotton fabric activated carbon （AC-WCF） was prepared from waste cotton fabrics （WCF） by zinc chloride activation. The mass fraction, impregnation time, activation temperature and activation time on the adsorption properties of AC-WCF were investigated by the orthogonal experiment method. The obtained AC-WCF was characterized by specific area and micropore/mesopore analysis, scanning electron microscopy （SEM） and FT-IR spectroscopy. Results show that all adsorption properties of AC-WCF are good; the optimum preparation conditions are as follows： mass fraction 45%, impregnation time 16 h, activation temperature 700 ℃ and activation time 30 min. And the prepared AC- WCF has large apparent surface area （ 1 462 m^2/g） and high adsorption pore volume （0.78 cm^3/g） with average pore size diameter of 2.1 nm. The adsorption values of the AC-WCF to iodine, methylene blue and phenol are 1 193.8 mg/g, 25 mL/0.1 g, and 160.7 mg/g, respectively. Meanwhile, AC-WCF shows high decolorization effect on dye wastewater.

关 键 词：废旧棉织物 活性炭 氯化锌活化法 吸附 染料 

分 类 号：TS102.9[轻工技术与工程—纺织工程] TQ424.1[轻工技术与工程—纺织科学与工程]