ISL OpenIR  > 青海盐湖研究所知识仓储
Adsorption kinetics of an organic dye by wet hybrid gel monoliths
Liu, Haining1,2; You, Laijiang3; Ye, Xiushen1,2; Li, Wu1; Wu, Zhijian1,3
2008-03-01
发表期刊JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
卷号45期号:3页码:279-290
文章类型Article
摘要Wet hybrid gel monoliths are prepared with bis(trimethoxysilylpropyl)amine (TSPA) or the mixture of TSPA with n-propyltriethoxysilane (PTES) or bis(trimethoxysilyl)hexane (TSH) or tetraethoxysilane (TEOS) as precursors. The adsorption kinetics of an organic dye (erioglaucine disodium salt, EDS) by the gel monoliths in aqueous solutions is studied comprehensively. The effects of temperature, pH, and ionic strength on the adsorption kinetics are investigated. Kinetic studies show that in general the kinetic data are well described by the pseudo second-order kinetic model. Initial adsorption rate increases with the increase in temperature, but decreases with the increase in solution pH and ionic strength. The adsorption activation energy is found to be 17-51 kJ mol(-1) under our experimental conditions. The internal diffusion of the dye into the hybrid gels appears to be the rate-limiting step of the overall adsorption process. The adsorption is promoted by hydrogen bonding, hydrophobic and electrostatic attractions in acidic or neutral solutions, suppressed by the electrostatic repulsion in basic solutions and by the ionic exchange competition of Cl- with the dye anions in solutions with a high NaCl concentration. After adsorption for 165 h, all the gel monoliths present a linear shrinkage less than 10%.
关键词Hybrid Gel Monolith Erioglaucine Disodium Salt Adsorption Kinetics Internal Diffusion
WOS标题词Science & Technology ; Technology
关键词[WOS]LINKED CHITOSAN BEADS ; BRILLIANT BLUE FCF ; FUNCTIONAL-GROUPS ; METHYLENE-BLUE ; REACTIVE DYES ; EQUILIBRIUM ; REMOVAL ; XEROGEL ; THERMODYNAMICS ; BIOSORPTION
收录类别SCI
语种英语
WOS研究方向Materials Science
WOS类目Materials Science, Ceramics
WOS记录号WOS:000253129300007
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5877
专题青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
盐湖资源与化学实验室
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Huaqiao Univ, Coll Mat Sci & Engn, Quanzhou 362021, Peoples R China
推荐引用方式
GB/T 7714
Liu, Haining,You, Laijiang,Ye, Xiushen,et al. Adsorption kinetics of an organic dye by wet hybrid gel monoliths[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,2008,45(3):279-290.
APA Liu, Haining,You, Laijiang,Ye, Xiushen,Li, Wu,&Wu, Zhijian.(2008).Adsorption kinetics of an organic dye by wet hybrid gel monoliths.JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,45(3),279-290.
MLA Liu, Haining,et al."Adsorption kinetics of an organic dye by wet hybrid gel monoliths".JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY 45.3(2008):279-290.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liu, Haining]的文章
[You, Laijiang]的文章
[Ye, Xiushen]的文章
百度学术
百度学术中相似的文章
[Liu, Haining]的文章
[You, Laijiang]的文章
[Ye, Xiushen]的文章
必应学术
必应学术中相似的文章
[Liu, Haining]的文章
[You, Laijiang]的文章
[Ye, Xiushen]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。