辽宁石油化工大学学报2024，Vol.44Issue(5)：1-7,7.DOI:10.12422/j.issn.1672-6952.2024.05.001
铜活化木质素活性炭的制备与性能
Preparation and Properties of Copper-Activated Lignin Activated Carbon
摘要
Abstract
Using sodium lignosulfonate and copper chloride dihydrate as raw materials,and activated carbon modified materials under different synthetic conditions were prepared by calcination under N2 atmosphere by impregnation and activation.The structure and surface morphology of the prepared materials were studied by X-ray diffraction(XRD),infrared spectroscopy(FT-IR),X-ray photoelectron spectroscopy(XPS)and other testing methods.Taking K2Cr2O7 solution with mass concentration of 20 mg/L as the research object,the Cr(Ⅵ)content in the solution was detected by Diphenyl carbamide chromogenic method,and the adsorption capacity of the prepared activated carbon modified materials was calculated.According to the experimental results,when the proportion of copper is 20%and the calcination temperature is 700℃,the adsorption performance of the material is the best,and the adsorption capacity is 72.2 mg/g.The adsorption process conforms to the Langmuir monolayer adsorption and Pseudo-second-order kinetics.关键词
煅烧法/木质素/Cr离子/吸附Key words
Calcination method/Lignin/Chromium ions/Adsorb分类
化学化工引用本文复制引用
邱亚茹,兰鲲,陈常东,王芳芳,陆彩云..铜活化木质素活性炭的制备与性能[J].辽宁石油化工大学学报,2024,44(5):1-7,7.基金项目
教育部"春晖计划"合作科研项目(2020703-8) （2020703-8）
国家留学基金委公派访学学者面上项目(CSC202008210025) （CSC202008210025）
辽宁省教育厅项目(LJKMZ20220736,JYTMS20231424). （LJKMZ20220736,JYTMS20231424）
