MXene@CS复合絮凝剂的制备及其对刚果红去除的研究

doi:10.11962/1006-4990.2020-0044

Abstract

Abstract:

Chitosan（CS） has a large number of hydroxyl and amino groups,which can provide more active sites for adsorption of pigment pollutants,but it was easy to dissolve in acidic conditions.MXene could provide support sites for CS,thereby constructing a new type of MXene@CS composite material.A new type of Ti₃C₂T_X@CS organic-inorganic composite was synt-hesized and applied in the removal of Congo red（CR）.The Ti₃C₂T_X@CS composite was proven to be physically compounded through the micromorphology,crystal structure and surface functional group analysis data.The experimental results showed that the decolorization rate of CR solution（500 mg/L） by synthesized Ti₃C₂T_X@CS could exceed 99% at Ti₃C₂T_X@CS dose of 30 mg,pH of 9,and reaction time of 30 min and the temperature range at 25~60 ℃.The experimental results and the change of Ti₃C₂T_X@CS potential before and after the reaction were used to infer the Ti₃C₂T_X@CS to Congo red.The removal mecha-anism is the action of electrical neutralization and adsorption bridging.

Key words: Ti₃C₂T_X@CS, Congo red（CR）, flocculant, decolorization rate

CLC Number:

TB33

Nan Lan,Lian Chaoqun,Geng Huikai,Zhang Wei,Wan Hongyou. Synthesis of MXene@CS composite flocculant and its application in removal of Congo red dye from aqueous solution[J]. Inorganic Chemicals Industry, 2020, 52(12): 59-63.

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Inorganic Acid-Base-Salt Committee of CIESC

Synthesis of MXene@CS composite flocculant and its application in removal of Congo red dye from aqueous solution

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