Nitrogen-doped chitosan-Fe(III) composite as a dual-functional material for synergistically enhanced co-removal of Cu(II) and Cr(VI) based on adsorption and redox
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- 作者：Changqing Zhua ; Fuqiang Liua ; b ; jogia@163.com" class="auth_mail" title="E-mail the corresponding author ; Yanhong Zhanga ; Mengmeng Weia ; Xiaopeng Zhanga ; Chen Linga ; Aimin Lia ; b
- 关键词：Nitrogen-doped chitosan-Fe(III) composite ; Synergistic co-removal ; Adsorption ; Redox ; Cu(II) cation ; Cr(VI) anion
- 刊名：Chemical Engineering Journal
- 出版年：2016
- 出版时间：15 December 2016
- 年：2016
- 卷：306
- 期：Complete
- 页码：579-587
- 全文大小：1033 K
文摘
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Co-doped N and Fe(III) improved amphoteric adsorption performance of raw chitosan.
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Coexistent Cu(II) and Cr(VI) enhanced mutual adsorption capacities and speeds.
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Common inorganic anions and heavy-metal cations promoted Cu(II) and Cr(VI) removal.
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Cr(VI) induced H+ consumption and shielding effect to improve Cu(II) adsorption.
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Cu(II) attracted Cr(VI) as cation-bridge and replaced H+ to enhance Cr(VI) redox.