高锰酸钾改性油茶果壳活性炭的Cu^2+吸附性能  

Study on the adsorption performance of Cu^2+through activated carbon from oiltea shell modified by KMnO4

作　　者：黄敏[1] 林玉丽 朱晓慧 范钦臻 程丽华[1] HUANG Min;LIN Yu-li;ZHU Xiao-hui;FAN Qin-zhen;CHENG Li-hua(Guangdong University of Petrochemical Technology,Maoming 525000,China)

机构地区：[1]广东石油化工学院,广东茂名525000

出　　处：《化学工程师》2020年第11期13-17,共5页Chemical Engineer

基　　金：广东省科技计划项目(2016A020228010)。

摘　　要：采用KMnO4氧化改性油茶果壳活性炭。探讨了改性工艺条件对改性油茶果壳活性炭的Cu^2+吸附性能的影响。改性工艺表明:在KMnO4氧化时间2h,KMnO4浓度0.05mol·L^-1、,氧化温度75℃下制备得到的改性油茶果壳活性炭对Cu^2+的去除率可达99.68%。通过静态吸附实验,研究影响改性油茶果壳活性炭的Cu^2+吸附性能的因素。吸附工艺表明:在Cu^2+初始浓度为50mg·L^-1,改性油茶果壳活性炭投加量为0.4g,吸附时间为5h时,改性油茶果壳活性炭对Cu^2+的去除率达99.73%。采用FTIR、SEM、BET分别对改性前后的油茶果壳活性炭进行了表征。Activated carbon was prepared through the oxidation of Oiltea Shell by KMnO4.The effect of modification process conditions on the adsorption performance of Cu^2+for the activated carbon by modified Oiltea Shell was systematic discussed.The research results showed that the removal rate of Cu2+by the activated carbon from modified Oiltea Shell could reach 99.68%under the following condition:the concentration of potassium permanganate was 0.05mol·L^-1,reaction time was 2h and reaction temperature was 75℃.The factors affecting the adsorption of Cu2+on modified Oiltea Shell were investigated through static adsorption experiments,which was shown that the removal rate of Cu^2+reached 99.73%at the following condition:the initial concentration of Cu2+was 50mg·L^-1,the dosage of modified Oiltea Shell was 0.4g,and the adsorption time was 5h.The activated carbon from the Oiltea Shell before and after modification were analyzed through FTIR,SEM and BET.

关 键 词：KMNO4 氧化改性 油茶果壳活性炭 CU^2+ 吸附性能 

分 类 号：X591[环境科学与工程—环境工程]