Removal of Cr(VI) from aqueous solution using amino-modified Fe3O4-SiO2-chitosan magnetic microspheres with high acid resistance and adsorption capacity
Sun, Xitong1,2,3; Yang, Liangrong2; Dong, Tingting2,3; Liu, Zhini2,4; Liu, Huizhou1,2
2016-03-10
发表期刊JOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
卷号133期号:10页码:43078
摘要A novel, bioadsorbent material of polyethylenimine-modified magnetic chitosan microspheres enwrapping magnetic silica nanoparticles (Fe3O4-SiO2-CTS-PEI) was prepared under relatively mild conditions. The characterization results indicated that the adsorbent exhibited high acid resistance and magnetic responsiveness. The Fe3O4 loss of the adsorbent was measured as 0.09% after immersion in pH 2.0 water for 24 h, and the saturated magnetization was 11.7 emu/g. The introduction of PEI obviously improved the adsorption capacity of Cr(VI) onto the adsorbent by approximately 2.5 times. The adsorption isotherms and kinetics preferably fit the Langmuir model and the pseudo-second-order model. The maximum adsorption capacity was determined as 236.4 mg/g at 25 degrees C, which was much improved compared to other magnetic chitosan materials, and the equilibrium was reached within 60 to 120 min. The obtained thermodynamic parameters revealed the spontaneous and endothermic nature of the adsorption process. Furthermore, the Cr(VI)-adsorbed adsorbent could be effectively regenerated using a 0.1 mol/L NaOH solution, and the adsorbent showed a good reusability. Due to the properties of good acid resistance, strong magnetic responsiveness, high adsorption capacity, and relatively rapid adsorption rate, the Fe3O4-SiO2-CTS-PEI microspheres have a potential use in Cr(VI) removal from acidic wastewater. (C) 2015 Wiley Periodicals, Inc.
关键词Applications Adsorption Biomaterials Emulsion Polymerization Magnetism And Magnetic Properties
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1002/APP.43078
收录类别SCI
语种英语
关键词[WOS]HEXAVALENT CHROMIUM REMOVAL ; IRON-OXIDE NANOPARTICLES ; HEAVY-METALS REMOVAL ; RAPID REMOVAL ; WASTE-WATER ; GAMMA-FE2O3 NANOPARTICLES ; CHITOSAN BEADS ; IONS ; ADSORBENT ; COMPOSITE
WOS研究方向Polymer Science
WOS类目Polymer Science
项目资助者National Natural Science Foundation of China(21106162) ; National Key Natural Science Foundation of China(21136009) ; Major Project of National Natural Science Foundation of China(51090382)
WOS记录号WOS:000367852900017
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20256
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Xiangtan Univ, Coll Chem Engn, Xiangtan 411105, Peoples R China
推荐引用方式
GB/T 7714
Sun, Xitong,Yang, Liangrong,Dong, Tingting,et al. Removal of Cr(VI) from aqueous solution using amino-modified Fe3O4-SiO2-chitosan magnetic microspheres with high acid resistance and adsorption capacity[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2016,133(10):43078.
APA Sun, Xitong,Yang, Liangrong,Dong, Tingting,Liu, Zhini,&Liu, Huizhou.(2016).Removal of Cr(VI) from aqueous solution using amino-modified Fe3O4-SiO2-chitosan magnetic microspheres with high acid resistance and adsorption capacity.JOURNAL OF APPLIED POLYMER SCIENCE,133(10),43078.
MLA Sun, Xitong,et al."Removal of Cr(VI) from aqueous solution using amino-modified Fe3O4-SiO2-chitosan magnetic microspheres with high acid resistance and adsorption capacity".JOURNAL OF APPLIED POLYMER SCIENCE 133.10(2016):43078.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Sun_et_al-2016-Journ(1002KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
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
[Sun, Xitong]的文章
[Yang, Liangrong]的文章
[Dong, Tingting]的文章
百度学术
百度学术中相似的文章
[Sun, Xitong]的文章
[Yang, Liangrong]的文章
[Dong, Tingting]的文章
必应学术
必应学术中相似的文章
[Sun, Xitong]的文章
[Yang, Liangrong]的文章
[Dong, Tingting]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Sun_et_al-2016-Journal_of_Applied_Polymer_Science.pdf
格式: Adobe PDF
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。