中文版 | English
CSpace
Dual-templating synthesis of superhydrophobic Fe3O4/PSt porous composites for highly efficient oil-water separation
Li, Keran1,2,4; Zhang, Qin1; Li, Jing1; Dai, Hui1; Zhou, Dahua3,4
2024-02-15
摘要Fe3O4/PSt porous composites with low density, interconnected network structure and superhydrophobic were prepared successfully by a dual-templating method, including High Internal Phase Emulsion (HIPEs) template method and the introduction of organic template species. It was worth mentioning that a novel amphiphilic di-block copolymers P(DMAEMA-b-St) were prepared as emulsifier by reversible addition fragmentation chain transfer (RAFT) polymerization method. At the same time, the effects of PS block length, emulsifier content, Fe3O4 content, DVB content and dispersed phase proportion on HIPEs droplet size and the corresponding polyHIPEs oil absorption were researched. The results showed that the oil adsorption capacity of 9.43 g/g toward toluene under optimal conditions. Subsequently, adsorption isotherm and adsorption kinetics were investigated. The results were shown that the adsorption of oil on adsorbent followed Freundlich model and pseudo-second-order (PSO) model. In addition, the adsorption experiments on a variety of oils demonstrated the wide applicability of Fe3O4/PSt porous composites. The cycling experiments proved that the Fe3O4/PSt porous composites had excellent cycling ability, were easy to recover and could be reused for multiple times. Finally, the adsorption column experiments showed that Fe3O4/PSt porous composites had powerful potential for industrial applications.
关键词Porous composites Dual-templating method Di-block copolymers Qil absorption Recyclability
DOI10.1016/j.molliq.2023.123922
发表期刊JOURNAL OF MOLECULAR LIQUIDS
ISSN0167-7322
卷号396页码:16
通讯作者Li, Keran(lkkkkr@163.com) ; Zhou, Dahua(zhoudahua@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:001158433000001
语种en