林产化学与工业2024，Vol.44Issue(6)：47-56,10.DOI:10.3969/j.issn.0253-2417.2024.06.006
季铵型松香基酰胺树脂吸附单宁酸及其机理
Adsorption of Tannic Acid by Quaternary Ammonium Rosin Based Amide Resin and Its Mechanism
摘要
Abstract
Rosin based amide resin(RBR)was prepared by suspension polymerization using hydrogenated rosin ethylene glycol acrylate as monome,and quaternary ammonium rosin based amide resin(QARBR)was prepared by modification of RBR.QARBR was characterized to study its removal performance and adsorption mechanism for the simulated and real systems of tannic acid(TA).The results showed that the specific surface area,pore volume,average pore size,and average particle size of QARBR were 19.21 m2/g,0.13 cm3/g,26.62 nm,and 329 µm,respectively.Under the conditions of TA initial mass concentration of 100 mg/L,a dosage of 3.0 g/L,a temperature of 303 K,a pH value of 7,and an adsorption time of 120 min,QARBR had an adsorption capacity of 28.92 mg/g for TA and a removal rate of 94.60％.After 5 cycles of use,the removal rate of TA by QARBR was 87.62％.The adsorption isotherms and thermodynamic results showed that QARBR adsorption of TA was a spontaneous and exothermic multi-layer adsorption process.The theoretical calculation of quantum chemistry theory calculations showed that TA adsorption by QARBR was mainly achieved through electrostatic attraction between quaternary ammonium groups and phenolic hydroxyl groups.关键词
季铵型松香基酰胺树脂/单宁酸/吸附/量子化学Key words
quaternary ammonium rosin based amide resin/tannic acid/adsorption/quantum chemistry分类
化学化工引用本文复制引用
唐小松,韦伟,陆玉欢,李浩,李文,雷福厚..季铵型松香基酰胺树脂吸附单宁酸及其机理[J].林产化学与工业,2024,44(6):47-56,10.基金项目
国家自然科学基金资助项目(32060325) （32060325）
广西民族大学科研基金资助项目(2022KJQD16) （2022KJQD16）
