摘要
将香烟过滤嘴在低温和氩气气氛中烧结制得碳材料(记为CFC),采用X-射线衍射(XRD)、扫描电子显微镜(SEM)、比表面积测定等手段对CFC的结构和表面形貌进行表征.将CFC作为废水中亚甲基蓝(记为MB)的吸附剂,采用单因素法研究废水pH值、CFC投加量、MB初始质量浓度、吸附时间、吸附温度等对MB吸附效果的影响规律.结果表明,CFC由多孔的无定形碳颗粒组成,其比表面积高达1 648 m2/g,总孔容达到0.815cm3/g.最佳吸附工艺条件:pH值9.0,CFC投加量0.3g/L,MB的初始质量浓度140mg/L,吸附时间180min,吸附温度35℃.在此条件下,CFC对MB的吸附率达到93.44%,吸附量达到360.06mg/g,说明利用CFC可有效去除废水中MB.
Carbon materials derived from used cigarette filters（CFC） was prepared by caleinating the used cigarette filters at low temperature and in presence of Ar. X-ray diffraction （XRD）, scanning electron mi- croscopy （SEM） and specific surface area measurements were used to characterize the microstructure, pore morphology and surface properties of CFC. The effects of pH of MB solution,adsorbent dose,initial concentration of MB,contact time and reaction temperature on the adsorption of MB were investigated in detail. Results show that the as prepared CFC is composed of porous amorphous carbon with a specific surface area of 1 648 m2/g and total pore volume of 0. 815 cm3/g. The optimal adsorption process was obtained as follows.pH is 9,CFC dose is 0.3 g/L,initial concentration of MB is 140 mg/L,contact time is 180 min and reaction temperature is 35 ℃. Under this condition,the MB removal rate is more than 93. 44% and the adsorption capacity of CFC is more than 360.06 mg/g, suggesting CFC derived from used cigarette filters is a good adsorbent for MB.
出处
《吉首大学学报（自然科学版）》
CAS
2017年第1期70-74,共5页
Journal of Jishou University(Natural Sciences Edition)
基金
国家自然科学基金资助项目(51364009
51262008
51472107
51672104
51662010)
吉首大学校级项目(JGY201641
JDY16013
JDX16016
JDX16017)
吉首大学研究生培养创新基地项目([2015]20号)
生态旅游湖南省重点实验室开放项目(JDSTLY1612)
关键词
香烟过滤嘴
碳材料
亚甲基蓝
废水
吸附
cigarette filters
carbon materials
methylene blue
wastewater
adsorption
