硫脲甲醛树脂吸附银离子的实验研究与理论模拟  

Experimental Analysis and Theoretical Study on the Adsorption of Silver Ions by Polythiourea Resin

作　　者：和芹[1] 张青[1] 陈伟[1] 李繁林 He Qin;Zhang Qing;Chen Wei;Li Fanlin(Department of Chemistry,Tangshan Normal University,Tangshan 063000,China)

机构地区：[1]唐山师范学院化学系,河北唐山063000

出　　处：《南开大学学报（自然科学版）》2020年第6期97-104,共8页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：Supported by the Foundation of Tangshan Normal University(2020c05)。

摘　　要：以硫脲和甲醛为原料制备硫脲甲醛树脂然后进行红外表征.将制备树脂应用于银离子静态吸附,研究吸附时间、浓度、吸附温度和p H对树脂吸附量的影响,同时进行等温拟合.为进一步研究该吸附特征,在B3LYP水平上对树脂有效官能团与Ag(I)作用特点进行理论分析.Polythiourea resin was synthesised with thiourea and formaldehyde and characterized by Fourier transform infrared spectroscopy(FT-IR). The effects of temperature, time, p H and initial concentration on the properties of polythiourea resin adsorption influence to silver ions were discussed by static adsorption method. In addition, experiments have also been carried out on the study of adsorption isotherm. In order to further understand the adsorption characteristics of polythiourea resin, the adsorption functional characteristics of Ag(Ⅰ) were studied by density functional B3 LYP method.

关 键 词：低聚硫脲树脂 银离子 静态吸附 B3LYP 

分 类 号：TQ041.8[化学工程]