当前位置: 首页 > 文章 > 盐酸改性凹凸棒土对铜离子的吸附性能 湖北农业科学 2013,52 (2) 74-76
Position: Home > Articles > Adsorption Property of Attapulgite Modified by Hydrochloric Acid on Cu2+ Hubei Agricultural Sciences 2013,52 (2) 74-76

盐酸改性凹凸棒土对铜离子的吸附性能

作  者:
龚安华;孙岳玲
单  位:
扬州工业职业技术学院化学工程系
关键词:
凹凸棒土;盐酸;Cu2+;吸附性能
摘  要:
采用不同浓度盐酸对凹凸棒土进行改性,研究其对Cu2+的吸附性能,同时研究了水样中Cu2+的初始浓度、水样pH、吸附振荡时间及投加量对其吸附性能的影响。结果表明,6 mol/L盐酸处理的凹凸棒土对Cu2+吸附能力最佳;Cu2+的初始浓度越高吸附率越低;在Cu2+初始浓度20 mg/L、水样pH 8、改性凹凸棒土加入量为50 g/L、振荡时间50 min时Cu2+的吸附率为93.85%;盐酸改性凹凸棒土对Cu2+的吸附行为符合Langmuir吸附等温方程,饱和吸附量约为20.0 mg/g。
译  名:
Adsorption Property of Attapulgite Modified by Hydrochloric Acid on Cu2+
作  者:
GONG An-hua,SUN Yue-ling(Department of Chemical Engineering,Yangzhou Polytechnic Institute,Yangzhou 225127,Jiangsu,China)
关键词:
attapulgite;hydrochloric acid;Cu2+;adsorption property
摘  要:
The adsorption of Cu2+ on attapulgite modified by different concentration of hydrochloric acid was studied.The results showed that the adsorption property of attapulgite modified by 6 mol / L hydrochloric acid was the best.Then the effects of initial concentration of Cu2+,pH,the adsorption time and attapulgite input on adsorption rate were studied.The results showed the higher the initial concentration of Cu2+ was,the lower the adsorption rate of attapulgite was.When the concentration of Cu2+ was 20 mg / L,pH was 8,the attapulgite input was 50 g / L,and the adsorption time was 50 min,the absorption rate of attapulgite reached 93.85%.Adsorption isotherms of attapulgite modified by hydrochloric acid conformed to Langmuir adsorptin isotherms,the saturated adsorption amount was 20.0 mg / g.

相似文章

计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊