成果归属机构：

能源学院

作者：

Zhang, Fengfan ; Yang, Zihao ; Li, Xiaochen ; Guo, Kan ; Lu, Licheng ; Dong, Zhaoxia

单位：

China Univ Petr, Unconvent Petr Res Inst, Beijing 102249, Peoples R China;CNPC Bohai Drilling Engn Co Ltd, Tianjin 300280, Peoples R China;Yanshan Petrochem Co, Sinopec, Beijing 102500, Peoples R China;China Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China

摘要：

Although superhydrophobic aerogels are widely used in oil-water separation, traditional vertical channel aerogels often struggle to achieve flexibility, robustness, and superhydrophobicity simultaneously. Inspired by cork wood, carboxylated nitrile rubber was selected as the soft phase, while a polymethylsiloxane layer served as the rigid phase, resulting in the successful preparation of a robust superhydrophobic aerogel. The aerogel featured a honeycomb-like structure with a multimodal pore size distribution. It exhibited excellent superhydrophobicity, with a contact angle of about 155.5(degrees) and a rolling angle of approximately 2(degrees). Even under various extreme conditions, the aerogel maintained a contact angle exceeding 150(degrees), showcasing excellent stability. Additionally, it showed excellent mechanical properties, with only around 10 % irreversible damage after 1000 compression cycles at 30 % strain. Therefore, the aerogel exhibited excellent adsorption performance, with an absorption capacity of 0.909 mL/cm(3), and an average absorption rate of 0.848 mL/s. Even after 100 cycles, it retained excellent recovery capabilities, proving effective in various practical oil-water separation scenarios. Most importantly, this method was simple, easy to operate, customizable, and cost-effective, laying the foundation for widespread industrial applications.

基金：

National Natural Science Foun-dation of China [52074320]

语种：

英文

DOI：

10.1016/j.seppur.2024.129888

来源：

SEPARATION AND PURIFICATION TECHNOLOGY,2025():.

出版日期：

2025-04-01

提交日期：

2024-10-22

引用参考：

Zhang, Fengfan; Yang, Zihao; Li, Xiaochen; Guo, Kan; Lu, Licheng; Dong, Zhaoxia. Facile fabrication of robust cork-inspired superhydrophobic aerogel for continuous oil spill and emulsion absorption[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2025():.