Adsorption difference of sodium alginate on marmatite (1 1 0) and galena (1 0 0): A DFT study

Hongxin Qiu,Jiushuai Deng,Bozeng Wu,Jianhua Chen,Xiaohao Sun,Mingzhen Hu,Jiaozhong Cai,Zherui Chen,Cheng Zheng

Applied Surface Science（2023）

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摘要

•Study on adsorption difference of sodium alginate on galena and marmatite.•Iron atom is the main active site on the surface of marmatite.•The existence of iron enhances the bonding strength between SA and marmatite.•Fe2+ can form π-backbonding with SA by providing a pair of π electrons.•vdW, steric effects and weak covalent interactions dominate the adsorption of SA.

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关键词

Adsorption,Depressant,Sodium alginate,Galena,Marmatite

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