高锰酸钾改性凹土对钴离子的吸附性能研究  

Study on Adsorption of Cobalt Ions on Modified Concave Soil by Potassium Permanganate

作　　者：田恒[1] 孟肖肖 杨士伟 TIAN Heng;MENG Xiaoxiao;YANG Shiwei(School of Chemical and Pharmaceutical Engineering,Hefei Normal University,Hefei,Anhui 230061,China)

机构地区：[1]合肥师范学院化学与制药工程学院,安徽合肥230061

出　　处：《平顶山学院学报》2024年第2期27-32,共6页Journal of Pingdingshan University

基　　金：安徽省药食同源功能研究工程实验室开放基金项目(YSTY2022020)。

摘　　要：首先,测量了不同浓度下钴离子溶液的吸光度,并通过线性拟合得到了相关系数为0.999的标准曲线.随后,采用酸性高锰酸钾改性法研究了GK-2H型凹土对钴离子的吸附能力.结果表明,经改性后的凹土对钴离子的吸附能力明显优于改性前的凹土吸附能力,特别是在高锰酸钾溶液pH值为2.44、浓度为0.06 mol/L时的吸附效果最佳,高达20.9%.最后,利用XRD、SEM、TEM和IR等方法对其进行检测,发现:改性后的凹土不但结构分散性好,而且表面也更圆润、杂质少.Firstly,the absorbance of Cobalt ion solution at different concentrations was detected in the study,and the standard curve with a correlation coefficient of 0.999 was obtained by the linear fitting.Subsequently,the Attapulgite of GK-2H type was modified by the acidic Potassium Permanganate under different conditions,and the adsorption ability of the above samples on Cobalt ions was investigated.The test results showed that the adsorption ability of the modified Attapulgite on Cobalt ions was significantly better than that of the original Attapulgite.When the pH value and the concentration of Potassium Permanganate solution were 2.44 and 0.06 mol/L,the adsorption rate was nearly up to 20.9%.Finally,the modified Attapulgite was detected by XRD,SEM,TEM,and IR.The results suggested that the modified Attapulgite by acidic Potassium Permanganate had good structure dispersion and a smoother surface with fewer impurities.

关 键 词：高锰酸钾 凹土 吸附 钴离子 

分 类 号：X703.1[环境科学与工程—环境工程]