摘要
以Zn-Al-NO_3^--类水滑石为前体,采用返混沉淀法制备了丙烯酸柱撑类水滑石,将其用于吸附废水中的Cu^(2+)。实验结果表明:当初始Cu^(2+)质量浓度为80 mg/L、丙烯酸柱撑类水滑石加入量为40g/L、废水pH为6、吸附时间为2.0 h时,丙烯酸柱撑类水滑石对Cu^(2+)有较好的吸附效果,在此条件下废水中Cu^(2+)的吸附率高达95.31%;丙烯酸柱撑类水滑石对Cu^(2+)的吸附符合Freundlich等温吸附模型。
The acrylate-pillared hydrotalcite-like compound was prepared by reprecipitation process using Zn-Al-NO3-HTLC as precursor, and was used for Cu^2＋ adsorption from wastewater. The experimental results show that： When the initial Cu^2＋ mass concentration is 80 mg/L, the acrylate-pillared HTLC dosage is 40 g/L, the wastewater pH is 6, and the adsorption time is 2.0 h, the adsorption effect of acrylatepillared HTLC to Cu^2＋ is good with 95.31% of Cu^2＋ absorption rate; The adsorption isotherm accords with Freundlich model.
出处
《化工环保》
CAS
CSCD
北大核心
2012年第6期557-560,共4页
Environmental Protection of Chemical Industry
基金
山东省自然科学基金资助项目(ZR2010BL007)
枣庄市科技计划项目(200923-1)
关键词
丙烯酸柱撑类水滑石
制备
吸附性能
铜离子
废水处理
acrylate-pillared hydrotalcite-like compound
preparation
absorption capability
copper ion
wastewater treatment
