Feasibility of sugarcane bagasse/polydopamine as sustainable adsorbents for Cr(VI) with reusability in cement composition

Mário A.B.S. Nunes,Dairon P. Fuentes, José A.F.S. Mesquita, Roberto C.O. Romano, Rafael G. Pileggi,Pedro V. Oliveira,Denise F.S. Petri

Journal of Hazardous Materials Advances（2023）

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摘要

•Polydopamine/sugarcane bagasse showed adsorption capacity of 141.7 mg/g for Cr(VI).•Breakthrough curves were determined online by direct coupling of the column to ICP OES.•Electrostatic interactions favored the adsorption of Cr(VI) on polydopamine/sugarcane bagasse.•The successful addition of spent adsorbents to cement paste provided a circular process.

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关键词

Sugarcane bagasse,Polydopamine,Cr(VI) ions,Adsorption,Cement,Circular economy

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