环境工程学报2017，Vol.11Issue(9)：4917-4922,6.DOI:10.12030/j.cjee.201610171
铁源对碳热合成磁性碳质吸附剂的影响
Influence of iron precursor in carbothermal synthesis of magnetic carbonaceous adsorbents
摘要
Abstract
In this work,the influence of the iron precursor for carbothermal synthesis of magnetic carbonaceous adsorbents towards trichloroethylene removal was evaluated.Three iron salts were used to get three kinds of magnetic carbonaceous adsorbents: ferric chloride, ferric nitrate and ferrous sulfate.All adsorbents were prepared at different temperatures of 600, 700, 800 ℃ using sucrose as carbon source.The characterization of prepared adsorbents was done by different techniques such as nitrogen adsorption, scanning electron microscopy, X-ray diffraction and so on.The three kinds of adsorbents presented different textural properties, iron dispersion and composition, thus leading to quite different abilities of trichloroethylene adsorption.The adsorption kinetics of the prepared adsorbents for trichloroethylene removal was performed and pseudo-second order kinetics equation was used to fit the data.In present study, ferric chloride was the best option of the precursor to synthesize magnetic carbonaceous adsorbents for trichloroethylene removal.关键词
三氯乙烯/吸附/铁源/碳热合成Key words
trichloroethylene/adsorption/iron precursor/carbothermal synthesis分类
资源环境引用本文复制引用
柯杭,张芳,李广贺,张旭..铁源对碳热合成磁性碳质吸附剂的影响[J].环境工程学报,2017,11(9):4917-4922,6.基金项目
国家高技术研究发展计划(863)项目(2013AA06A207) （863）
