您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Removal of roxarsone from aqueous solution by Fe/La-modified montmorillonite

文献类型： 外文期刊

作者： Wang, Ya-Jiao 1 ; Ji, Feng 2 ; Wang, Wei 1 ; Yuan, Shou-Jun 1 ; Hu, Zhen-Hu 1 ;

作者机构： 1.Hefei Univ Technol, Sch Civil Engn, Hefei 230009, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Anim Husb & Vet Med, Beijing 100097, Peoples R China

3.Hefei Univ Technol, Inst Water Treatment & Wastes Reutilizat, Sch Civil Engn, Hefei 230009, Peoples R China

关键词： Adsorption;Fe;La-modified montmorillonite;Removal;Roxarsone

期刊名称：DESALINATION AND WATER TREATMENT （ 影响因子：1.254； 五年影响因子：1.553 ）

ISSN： 1944-3994

年卷期： 2016 年 57 卷 43 期

页码：

收录情况： SCI

摘要： Roxarsone is an organoarsenical compound widely used as a feed additive in animal husbandry and might result in the contamination of inorganic arsenic in aquatic environment. Montmorillonite is an economical adsorbent with many advantages. In this study, Fe/La-modified montmorillonite (Fe/La-Mt) was prepared, characterized, and investigated for the removal of roxarsone from aqueous solutions. Brunauer-Emmett-Teller (BET) analysis confirmed the increase in specific surface area and pore volume of montmorillonite after modification. FESEM analysis showed that Fe/La-Mt formed flake structure and the structure was collapsed after being calcined (C-Fe/La-Mt). The adsorption results indicated that the adsorption capacity of Fe/La-Mt onto roxarsone is higher than that of C-Fe/La-Mt. The adsorption process of roxarsone onto Fe/La-Mt and C-Fe/La-Mt can be well described using pseudo-second-order model and interpreted using the Langmuir isotherm. Thermodynamic analysis indicated that the adsorption was a spontaneous and endothermic process. The adsorption capacity reduced slightly when solution pH increased from 2.5 to 8.0. The ion of greatly decreased the adsorption of roxarsone onto Fe/La-Mt. X-ray photoelectron spectroscopy analysis confirmed the loading of arsenic (V) onto the surface of Fe/La-Mt. The high adsorption capacity in a wide pH range demonstrated that Fe/La-Mt can be used potentially for the removal of roxarsone from aqueous solution.

  • 相关文献

[1]Adsorption and photocatalytic decomposition of roxarsone by TiO2 and its mechanism. Lu, Donglei,Wang, Wei,Yuan, Shoujun,Hu, Zhen-Hu,Ji, Feng,Wang, Wei,Yuan, Shoujun,Hu, Zhen-Hu,Chen, Tianhu. 2014

[2]Adsorption characteristics of 4-hydroxy-3-aminophenylarsonic acid (HAPA) onto anaerobic granular sludge. Li, Jun-Chao,Yuan, Shou-Jun,Wang, Wei,Hu, Zhen-Hu,Ji, Feng,Yuan, Shou-Jun,Wang, Wei,Hu, Zhen-Hu. 2016

[3]A comprehensive study on activated carbon prepared from spent shiitake substrate via pyrolysis with ZnCl2. Ma, Yuhui,Wang, Qunhui,Wang, Xiaona,Sun, Xiaohong,Wang, Xiaoqiang. 2015

[4]Factor effects and mechanisms of the adsorption of Hg(II), Cd(II) and Ni(II) on charged liposomes. Gong, Wenwen,Yu, Yanjun,Liu, Xinhui,Cui, Baoshan,Bai, Junhong,Gong, Wenwen,Liang, Gang,Han, Ping. 2018

[5]Density functional investigation of mercury and arsenic adsorption on nitrogen doped graphene decorated with palladium clusters: A promising heavy metal sensing material in farmland. Zhao, Chunjiang,Wu, Huarui,Zhao, Chunjiang,Wu, Huarui,Zhao, Chunjiang,Wu, Huarui.

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台