文献类型：期刊文献

英文题名：Preparation of a porous superhydrophobic foam from waste plastic and its application for oil spill cleanup

作者：Yu, Chuanming[1];Lin, Wenyu[1];Jiang, Jine[1];Jing, Zhanxin[1];Hong, Pengzhi[1];Li, Yong[1]

机构：[1]Guangdong Ocean Univ, Fac Chem & Environm Sci, Zhanjiang 524088, Peoples R China

年份：2019

卷号：9

期号：65

起止页码：37759

外文期刊名：RSC ADVANCES

收录：SCI-EXPANDED(收录号：WOS:000501604800009)、、EI(收录号：20194907774666)、Scopus(收录号：2-s2.0-85075753065)、WOS

基金：We acknowledge the funding support from Colleges Innovation Project of Guangdong Province (2017KQNCX093), Science and Technology Plan Project of Zhanjiang City (2017A02016, 2018A01042), Program for Scientific Research Start-up Funds of Guangdong Ocean University (R18018), College Student Innovation and Entrepreneurship Training Program of Guangdong Ocean University (CXXL2018108, CXXL2019300, CXXL2019301).

语种：英文

外文关键词：Emulsification - Oil spills - Reusability - Silica - Silicon - Superhydrophobicity - Water treatment

外文摘要：In order to cope with the increasing oil spill accidents and the intentional discharge of oily wastewater, a new oil-adsorbing material with superhydrophobicity and reusability is needed. In this paper, waste plastic was used to fabricate an alveolate polystyrene (PS) foam to reduce secondary pollution. The PS foam was synthesized from a high internal phase Pickering emulsion (HIPPE) technique in a one-step process. The emulsion was stabilized by a co-Pickering system of Span 80 surfactant and SiO2 particles. To explain the super stability of the HIPPE, a novel model of the water-in-oil droplet was promoted. The obtained SiO2@PS foam exhibited a multi-order-porous structure, and displayed superhydrophobicity and superoleophilicity. It can selectively remove various oily contaminants from water with a high adsorption capacity of 20.4-58.1 g g(-1) at a fast rate. The oil-adsorbed material can be reused by simple centrifugation, and no more than a 1% decline was obtained in the oil adsorption after 10 cycles. Therefore, the SiO2@PS foam has a great potential application in oily water treatment.