Glucose and glycidol grafted polyacrylonitrile particles by hydrothermal synthesis for enriched boron from aqueous solution
作者： Qinglong Luo , Zhongfu Cheng , Leilei He , Xueying Wang , Kaihong Li
DOI: 10.1016/J.COLSURFA.2020.125976
关键词:
摘要: Abstract The removal of boron from aqueous solution and the enrichment salt lake have attracted more attention. In this work, ethylenediamine polyethyleneimine were grafted onto polyacrylonitrile with different degree polymerization by hydrothermal method, then reacted glycidol glucose to introduce polyhydroxy structure. chemical composition surface properties four adsorbents characterized IR, SEM, Mapping, TG-DSC-DTG BET. adsorption isotherm kinetics investigated systematically. results showed that maximum capacity PAN85000/150000-EN-PG PAN85000/150000-PEI-GLC 18.43, 15.27, 19.27 20.91 mg/g, respectively. obey Langmuir model pseudo-second-order kinetic model. presence brine ions Na+, Mg2+, Ca2+ Cl− little interference adsorption. These maintained good performance after 5 times adsorption-desorption processes. They are expected be ideal environmentally friendly for lakes.
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