Coupled sorptive and oxidative antimony(III) removal by iron-modified biochar: Mechanisms of electron-donating capacity and reactive Fe species

Gao, Yurong; Chen, Hanbo; Fang, Zheng; Niazi, Nabeel Khan; Adusei-Fosu, Kwasi; Li, Jianhong; Yang, Xing; Liu, Zhongzhen; Bolan, Nanthi S.; Gao, Bin; Hou, Deyi; Sun, Chenghua; Meng, Jun; Chen, Wenfu; Quin, Bert F.; Wang, Hailong

doi:10.1016/j.envpol.2023.122637

Cited by 8 publications

(1 citation statement)

References 49 publications

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“…In the MCC, the Fe-O bond shifts from 562 cm −1 to 565 cm −1 . To produce the adsorption action, Fe-O and Sb chelate to form Fe-O-Sb [30,50].…”

Section: Ftirmentioning

confidence: 99%

Facile Preparation of Magnetic Chitosan Carbon Based on Recycling of Iron Sludge for Sb(III) Removal

Zeng,

Xu,

Zeng

et al. 2024

Sustainability

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In this study, following the concept of “treating waste with waste”, magnetic chitosan carbon (MCC) was developed through the pyrolysis of chitosan/iron sludge (CHS) beads created using an embedding method in a closed environment for antimony removal. The results indicate MCC has a good magnetic recovery rate and that its magnetic saturation strength can reach 33.243 emu/g. The iron proportion and acid resistance of MCC were all better than those of CHS, and at 25 °C, its adsorption saturation capacity improved from 24.956 mg/g to 38.234 mg/g. MCC has a quick adsorption equilibrium time, and in about 20 min, 90% of the final equilibrium capacity can be achieved. The primary mechanism of Sb adsorption by MCC is the formation of an inner sphere complex between Fe-O and Sb, while surface complexation, hydrogen bonding, and interaction also play a function. Thus, MCC, a lower-cost and greener adsorbent for Sb removal, has been made using iron sludge. This enabled it to utilize iron sludge as a resource and served as a reference for the sustainable management of water treatment residuals.

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“…In the MCC, the Fe-O bond shifts from 562 cm −1 to 565 cm −1 . To produce the adsorption action, Fe-O and Sb chelate to form Fe-O-Sb [30,50].…”

Section: Ftirmentioning

confidence: 99%

Facile Preparation of Magnetic Chitosan Carbon Based on Recycling of Iron Sludge for Sb(III) Removal

Zeng,

Xu,

Zeng

et al. 2024

Sustainability

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show abstract

Efficient adsorptive removal of Sb(Ⅲ) and Sb(V) from printing and dyeing wastewater by TiCl4

Huang,

Xiang,

Huang

et al. 2024

Chemical Engineering Journal

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Mechanisms and valorization of selective adsorption of Sb(III) by amino-functionalized lignin-based porous biochar

Huang,

Yang,

et al. 2024

Chemical Engineering Journal

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Coupled sorptive and oxidative antimony(III) removal by iron-modified biochar: Mechanisms of electron-donating capacity and reactive Fe species

Cited by 8 publications

References 49 publications

Facile Preparation of Magnetic Chitosan Carbon Based on Recycling of Iron Sludge for Sb(III) Removal

Facile Preparation of Magnetic Chitosan Carbon Based on Recycling of Iron Sludge for Sb(III) Removal

Efficient adsorptive removal of Sb(Ⅲ) and Sb(V) from printing and dyeing wastewater by TiCl4

Mechanisms and valorization of selective adsorption of Sb(III) by amino-functionalized lignin-based porous biochar

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