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Preparation of carboxymethyl cellulose-based macroporous adsorbent by eco-friendly Pickering-MIPEs template for fast removal of Pb2+ and Cd2+

文献类型:期刊论文

作者Zhu YF(朱永峰)3; Xu H(徐慧)2; Wang AQ(王爱勤)3; Wang F(王峰)1,3
刊名Frontiers in Chemistry
出版日期2019-09-10
卷号7期号:0页码:1-15
关键词macroporous materials Pickering emulsions montmorillonite adsorption heavy metal
DOI10.3389/fchem.2019.00603
英文摘要

Recently, Pickering high internal phase emulsions (Pickering HIPEs) have been widely used to fabricate macroporous materials. However, the high usage of poisonous organic solvent in HIPEs not only greatly increases the cost but also is harmful to human health and environment, which leads to limited large-scale applications. In this study, we prepared a novel monolithic macroporous material of carboxymethyl cellulose-g-poly(acrylamide)/montmorillonite (CMC-g-PAM/MMT) by the free radical polymerization via oil-in-water Pickering medium internal phase emulsions (Pickering MIPEs), which used the non-toxic and eco-friendly flaxseed oil as continuous phase, MMT, and Tween-20 (T-20) as stabilizer. The pore structure of the resulting macroporous materials could be tuned easily by adjusting the content of MMT, co-surfactant T-20, and the oil phase volume fraction. The maximal adsorption capacities of the prepared macroporous material for Pb2+ and Cd2+ were 456.05 and 278.11 mg/g, respectively, and the adsorption equilibrium can be reached within 30 min. Otherwise, the macroporous monolith exhibited excellent reusability through five adsorption–desorption cycles. Thus, the eco-friendly Pickering-MIPEs is a potential alternative method to be used to fabricate multi-porous adsorption materials for environmental applications.

语种英语
源URL[http://210.77.64.217/handle/362003/25478]  
专题兰州化学物理研究所_甘肃省黏土矿物应用重点实验室
兰州化学物理研究所_环境材料与生态化学研究发展中心
通讯作者Wang AQ(王爱勤)
作者单位1.北部湾大学
2.兰州理工大学
3.中国科学院兰州化学物理研究所
推荐引用方式
GB/T 7714
Zhu YF,Xu H,Wang AQ,et al. Preparation of carboxymethyl cellulose-based macroporous adsorbent by eco-friendly Pickering-MIPEs template for fast removal of Pb2+ and Cd2+[J]. Frontiers in Chemistry,2019,7(0):1-15.
APA Zhu YF,Xu H,Wang AQ,&Wang F.(2019).Preparation of carboxymethyl cellulose-based macroporous adsorbent by eco-friendly Pickering-MIPEs template for fast removal of Pb2+ and Cd2+.Frontiers in Chemistry,7(0),1-15.
MLA Zhu YF,et al."Preparation of carboxymethyl cellulose-based macroporous adsorbent by eco-friendly Pickering-MIPEs template for fast removal of Pb2+ and Cd2+".Frontiers in Chemistry 7.0(2019):1-15.

入库方式: OAI收割

来源:兰州化学物理研究所

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