生物质化学工程2018，Vol.52Issue(3)：29-34,6.DOI:10.3969/j.issn.1673-5854.2018.03.005
机械力预处理磷酸法与传统磷酸法制备活性炭
Activated Carbon Prepared with Phosphoric Acid Activation by Mechanical Force Pretreatment Method and Conventional Method
摘要
Abstract
The activated carbon was prepared from kenaf rod core by mechanical force pretreatment process and conventional process with phosphoric acid as activator.The effects of activation time on the yield, adsorption performance of the kenaf rod based-activated carbon were discussed.The pore structure characteristics were characterized by specific surface area and pore size analyzer and the surface functional groups were characterized by Fourier transform infrared spectroscopy.The results showed that compared with the conventional process, the mechanical force pretreatment process made phosphoric acid permeate into the inner layer of raw material to strengthen the activation efficiency, which improved the yield, adsorption performance, BET specific surface area and pore volume of kenaf rod based-activated carbon.Under the activation time 90 min, the yield, iodine adsorption value, methylene blue adsorption value, BET specific surface area and total pore volume of the activated carbon prepared by mechanical force pretreatment process were 50.24％, 1024 mg/g, 275 mg/g, 1625.42 m2/g and 0.762 cm3/g, respectively. According to pore size analysis, activated carbons prepared by the two methods were mainly microporous and contained a certain number of mesopores.It was known from infrared spectrum analysis that the mechanical force pretreatment process didn't destroy the basic structure of activated carbon.The surface of kenaf rod based-activated carbon prepared by the two methods contained oxygen-containing functional groups, such as -OH,C-O and C O groups.关键词
红麻秆芯/活性炭/机械力作用/预处理/吸附性能Key words
kenaf rod core/activated carbon/mechanochemical process/pretreatment/adsorption performance分类
化学化工引用本文复制引用
林星,杨旋,蔡政汉,林冠烽,李玉华,黄彪..机械力预处理磷酸法与传统磷酸法制备活性炭[J].生物质化学工程,2018,52(3):29-34,6.基金项目
福建省科技重大专项基金(2014NZ0003) （2014NZ0003）
福建省教育厅中青年科研项目(JAT160684) （JAT160684）
福建省高校杰出青年科研人才培育计划(无编号) （无编号）
