Aminopropyl-containing ionic liquid based organosilica as a novel and efficient adsorbent for removal of crystal violet from wastewaters  

作　　者：Frood Shojaeipoor Bakhshali Masoumi Mohammad Hossain Banakar Javad Rastegar 

机构地区：[1]Department of Chemistry, Payame Noor University [2]Department of Chemistry, Yasouj University

出　　处：《Chinese Journal of Chemical Engineering》2017年第9期1294-1302,共9页中国化学工程学报（英文版）

基　　金：Supported by the National Science Foundation of Iran

摘　　要：Herein a novel aminopropyl-containing ionic liquid based organosilica(ILOS-NH_2) is prepared, characterized and applied as effective adsorbent for removal of crystal violet(CV) dye from wastewater. The ILOS-NH2 material was synthesized by hydrolysis and co-condensation of 1,3-bis-(3-trimethoxysilylpropyl)-imidazolium chloride(BTMSPIC) under acidic conditions followed by treatment with 3-aminopropyl-trimethoxysilane in toluene under reflux conditions. This material was characterized using scanning electron microscopy(SEM), diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS), thermal gravimetric analysis(TGA) and energy dispersive X-ray analysis(EDAX). The material was effectively used in the removal of crystal violet at ambient temperature and showed high capacity and stability under applied conditions. The efficacy of p H, contact time, adsorbent dose, initial dye concentration, temperature, and isotherm studies and the applicability of pseudo-first, second order and Elovich kinetic models have also been investigated.Herein a novel aminopropyl-containing ionic liquid based organosilica（ILOS-NH_2） is prepared, characterized and applied as effective adsorbent for removal of crystal violet（CV） dye from wastewater. The ILOS-NH2 material was synthesized by hydrolysis and co-condensation of 1,3-bis-（3-trimethoxysilylpropyl）-imidazolium chloride（BTMSPIC） under acidic conditions followed by treatment with 3-aminopropyl-trimethoxysilane in toluene under reflux conditions. This material was characterized using scanning electron microscopy（SEM）, diffuse reflectance infrared Fourier transform spectroscopy（DRIFTS）, thermal gravimetric analysis（TGA） and energy dispersive X-ray analysis（EDAX）. The material was effectively used in the removal of crystal violet at ambient temperature and showed high capacity and stability under applied conditions. The efficacy of p H, contact time, adsorbent dose, initial dye concentration, temperature, and isotherm studies and the applicability of pseudo-first, second order and Elovich kinetic models have also been investigated.

关 键 词：Ionic liquid based organosilica Aminopropyl-functionalized Crystal violet（CV） Isotherm Kinetic 

分 类 号：TQ424[化学工程] X703[环境科学与工程—环境工程]