NDLI: Highly efficient co-removal of heavy metals in wastewater from chemical oxygen demand testing instrument by cysteine-functionalized magnetic nanoparticles

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Highly efficient co-removal of heavy metals in wastewater from chemical oxygen demand testing instrument by cysteine-functionalized magnetic nanoparticles

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Chemical Research in Chinese Universities : Volume 30, Issue 2, April 2014

Chemical Research in Chinese Universities : Volume 30, Issue 1, February 2014

Chemical Research in Chinese Universities : Volume 29

Highly efficient co-removal of heavy metals in wastewater from chemical oxygen demand testing instrument by cysteine-functionalized magnetic nanoparticles

Content Provider	Springer Nature Link
Author	Liu, Qingju Li, Xun Cai, Botai Zeng, Lixi Zhou, Ying He, Yujian Gu, Pei Yuan, Longfei
Copyright Year	2014
Abstract	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 nanoparticles(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 HNO$_{3}$, 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.
Starting Page	472
Ending Page	479
Page Count	8
File Format	PDF
ISSN	10059040
Journal	Chemical Research in Chinese Universities
Volume Number	30
Issue Number	3
e-ISSN	22103171
Language	English
Publisher	Jilin University and The Editorial Department of Chemical Research in Chinese Universities
Publisher Date	2014-05-29
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Magnetic nanoparticle Chemistry/Food Science Analytical Chemistry Adsorption Magnetic separation Physical Chemistry Inorganic Chemistry Wastewater Heavy metal Organic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Education

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