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Highly Efficient Co-removal of Heavy Metals in Wastewater from Chemical Oxygen Demand Testing Instrument by Cysteine-functionalized Magnetic Nanoparticles
Cai Botai; Gu Pei; Zeng Lixi; Zhou Ying; Liu Qingju; Li Xun; Yuan Longfei; He Yujian
2014
发表期刊CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
ISSN1005-9040
卷号30期号:3页码:472-479
摘要Wastewater discharged from chemical oxygen demand(COD) testing instrument was generally difficult to treat due to its high content of heavy metals and very low pH. In this study, a kind of cysteine-functionalized magnetic narioparticles(MNPs-Cys) was synthesized and used to treat the wastewater. The synthesized MNPs-Cys as the adsorbent for heavy metal removal from aqueous solutions were systematically investigated. The adsorption dynamic process fit the Langmuir isotherms well with a maximum adsorption capacity of 76.92 mg/g for Cu(II). The adsorbent could be easily regenerated by 0.1 mol/L HNO3, which exhibited a high adsorption performance within 10 cycles. This adsorbent, combined with a developed pretreatment approach, could make Cr(III), Hg(II) and Ag(I) in the wastewater discharged from COD testing instrument effectively removed and the removal efficiency is more than 99%. This work gave a new insight into the design and synthesis of high-performance materials for treating wastewater with heavy metals.
关键词Magnetic Nanoparticle Heavy Metal Adsorption Magnetic Separation Wastewater
DOI10.1007/s40242-014-3484-5
收录类别SCI
WOS记录号WOS:000337653300026
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/3778
专题环境科学与技术研究室
作者单位Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China;Peking Univ, State Key Lab Nat & Biomimet Drugs, Beijing 100191, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
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Cai Botai,Gu Pei,Zeng Lixi,et al. Highly Efficient Co-removal of Heavy Metals in Wastewater from Chemical Oxygen Demand Testing Instrument by Cysteine-functionalized Magnetic Nanoparticles[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2014,30(3):472-479.
APA Cai Botai.,Gu Pei.,Zeng Lixi.,Zhou Ying.,Liu Qingju.,...&He Yujian.(2014).Highly Efficient Co-removal of Heavy Metals in Wastewater from Chemical Oxygen Demand Testing Instrument by Cysteine-functionalized Magnetic Nanoparticles.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,30(3),472-479.
MLA Cai Botai,et al."Highly Efficient Co-removal of Heavy Metals in Wastewater from Chemical Oxygen Demand Testing Instrument by Cysteine-functionalized Magnetic Nanoparticles".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 30.3(2014):472-479.
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