Abstract:

The montmorillonite-supported cupric(Ⅱ)-salieylidene-β-lactamine complex material[Cu(Ⅱ)-L/MMT] has been synthesized by ion exchange and complexation action,and the complex material is characterized by XRD and FT-IR. The adsorption capacity for crystal violet and the influential factors are investigated. The results show that cupric(Ⅱ) complex has successfully been inserted into montmorillonite interlayers. Moreover,the pHof aqueous solution,complex material dosage,adsorption time,and the initial concentration of crystal violet have greater influences on the removal of crystal violet by the complex material adsorption. Compared with original soil,the crystal violet removal effect by [Cu(Ⅱ)-L/MMT] is improved significantly. The adsorption isotherm complies with Langmuir model,and the adsorption behavior well conforms to pseudo second order kinetics model.

Key words: montmorillonite, salieylidene-β-lactamine, complex, crystal violet, adsorption

摘要：

通过离子交换和络合作用合成蒙脱石负载铜（Ⅱ）-水杨醛缩-β-丙氨酸复合材料[Cu（Ⅱ）-L/MMT]。采用XRD和FT-IR对该复合材料进行了表征，并考察了其对结晶紫的吸附性能及影响因素。结果表明，铜（Ⅱ）配合物已成功插入蒙脱石层间；溶液pH、复合材料投加量、吸附时间及结晶紫的初始浓度对复合材料吸附去除结晶紫有较大影响。与原土相比，[Cu（Ⅱ）-L/MMT]对结晶紫的去除效果明显提高。该复合材料对结晶紫的吸附等温线符合Langmuir模型，吸附行为符合拟二级动力学模型。

关键词: 蒙脱石, 水杨醛缩-β-丙氨酸, 配合物, 结晶紫, 吸附

CLC Number: 

• X703