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题名: Highly Efficient Co-removal of Heavy Metals in Wastewater from Chemical Oxygen Demand Testing Instrument by Cysteine-functionalized Magnetic Nanoparticles
作者: Cai Botai; Gu Pei; Zeng Lixi; Zhou Ying; Liu Qingju; Li Xun; Yuan Longfei; He Yujian
关键词: Magnetic nanoparticle ; Heavy metal ; Adsorption ; Magnetic separation ; Wastewater
刊名: CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
发表日期: 2014
DOI: 10.1007/s40242-014-3484-5
卷: 30, 期:3, 页:472-479
收录类别: SCI
英文摘要: 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.
WOS记录号: WOS:000337653300026
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/3778
Appears in Collections:环境科学与技术研究室_期刊论文

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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

Recommended Citation:
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.
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