化工学报2016，Vol.67Issue(z1)：353-358,6.DOI:10.11949/j.issn.0438-1157.20151656
K2CO3活化空心莲子草制备活性炭及表征
Preparation and characterization of activated carbon from Alternanthera philoxeroides by K2CO3 activation
摘要
Abstract
A series of activated carbons (ACs) were prepared from Alternanthera philoxeroides (AP) by K2CO3 one-step mixing activation.The effects of various process parameters,such as mixing mass ratio of K2CO3 to AP,activation temperature and period,on the adsorptive property and the yield of AC were investigated.The surface morphology of AC were characterized with scanning electron microscopy (SEM).The results indicate that the optimized activation conditions were 1.5 of K2CO3 to AP mixing mass ratio,800℃ of activation temperature,3.0 h of the activation time.The yield,iodine number and methylene blue (MB) number of AC were 13.79％,1477 mg · g 1,384 mg · g-1,respectively.The recovery ratios of K2CO3 were over 80％ when the nitrogen flow rate was no more than 100 ml · min 1.The SEM images of the ACs showed that the activation temperature has obvious effect on the porous structure.关键词
活性炭/空心莲子草/制备/活化/吸附Key words
activated carbon/Alternanthera philoxeroides/preparation/activation/adsorption分类
生物科学引用本文复制引用
陈文婷,冉启成,蔡献宗,黎先发,徐建蓉..K2CO3活化空心莲子草制备活性炭及表征[J].化工学报,2016,67(z1):353-358,6.基金项目
四川省教育厅重点项目(14ZA0092) （14ZA0092）
西南科技大学博士基金项目(14zx7155).supported by the Key Project of Education Department of Sichuan Province (14ZA0092) and the Doctor Foundation of Southwest University of Science and Technology (14zx7155). （14zx7155）
