气凝胶
吸附
化学
氯化铵
糖
化学工程
胺气处理
氯化物
纤维素
精炼(冶金)
铵
氯化胆碱
有机化学
核化学
物理化学
工程类
作者
Li-Shu Zhou,Yan-Shu Xiong,Ran Jia,Mingxing Li,Bo-Huan Fan,Jiayi Tang,Wen Li,Hai‐Qin Lu,Yu-Wei Lan,Kai Li
标识
DOI:10.1016/j.ijbiomac.2022.12.290
摘要
The crucial need for quality refined sugar has led to the development of advanced adsorbents, with a focus on the decolorization of remelt syrup. In this study, (3-chloro-2-hydroxypropyl) trimethylammonium chloride and polyethyleneimine co-modified pomelo peel cellulose-derived aerogel (CP-PPA) was fabricated, and synthetic melanoidins were used as model colorants of remelt syrup to evaluate the validity and practicality of CP-PPA for eliminating colored impurities. Integrating abundant amine-functionalized groups (quaternary ammonium and protonated amine) within the pomelo peel-derived aerogel directionally captured electronegative melanoidins via electrostatic interactions. Furthermore, the active sites, types, and relative strength of the weak interactions between CP-PPA and melanoidins were determined using density functional theory simulations. CP-PPA exhibited an excellent equilibration adsorbing capacity for capturing melanoidins of 749.51 mg/g, and a removal efficiency of 93.69 %. Additionally, the adsorption mechanism was thoroughly examined in an effort to improve the economy of the sugar refinement industry.
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