Evaluation of adsorption differences of DL-cysteine on sphalerite surfaces with different degrees of iron substitution: Experimental and DFT studies

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

Minerals Engineering（2023）

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摘要

•DL adsorption on sphalerite surfaces with different Fe substitutions is analyzed.•Fe substitution enhances the overall acidity and improves the reactivity.•PDOS and charge transfer analyses confirm space matching and orbital matching.•The micro-flotation and contact angle show strong adsorption of DL on marmatite.•DL is a feasible green selective depressant.

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关键词

adsorption differences,sphalerite surfaces,iron substitution,dl-cysteine

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