煤基多孔碳的制备及其对对硝基苯酚吸附性能的研究  

Preparation of Coal-based Porous Carbon and Its Adsorption of p-Nitrophenol

作　　者：杨晓霞[1] 李博 李文超 李家乐 廖语晨 YANG Xiao-xia;LI BO;LI Wen-chao;LI Jia-le;LIAO Yu-chen(School of Chemistry and Chemical Engineering,Shaanxi Key Laboratory of Chemical Reaction Engineering,Yan′an University,Yan′an 716000,China)

机构地区：[1]延安大学化学与化工学院,陕西省化学反应工程重点实验室,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2020年第2期49-52,共4页Journal of Yan'an University：Natural Science Edition

基　　金：2018年校级大学生创新创业训练计划项目(D2018032);陕西省延安市科技项目(2017WZZ-10)。

摘　　要：采用KOH活化法制备了禾草沟煤基多孔碳,并用于吸附对硝基苯酚研究。考察了对硝基苯酚溶液初始浓度、吸附时间、吸附温度、多孔碳投放量、溶液pH值等因素对对硝基苯酚吸附量的影响。结果表明,该吸附是一个快速吸附过程;吸附量随溶液初始浓度的增加先快速增加后趋于平缓,随多孔碳投放量的增加而增加。在25℃、溶液的pH值为7时,吸附效果最佳。The coal-based activated carbon was prepared by KOH activation and used for the adsorption of p-nitrophenol.The effects of initial concentration of p-nitrophenol solution,adsorption time,adsorption temperature,dosage of porous carbon and pH value of nitrophenol solution on the equilibrium adsorption capacity of p-nitrophenol were investigated.The results show that the adsorption process reaches equilibrium quickly.The adsorption capacity increases with initial concentration of p-nitrophenol solution rapidly firstly and then slowes down,and increases with dosage of porous carbon.The adsorption effect is the best when the temperature is 25℃and the pH value of the solution is 7.

关 键 词：煤基多孔碳 吸附 对硝基苯酚 

分 类 号：TQ536.1[化学工程—煤化学工程]