A Modified Porous Sponge with Selective Ability for Oil Removal from Oil-Water Mixtures. (12th April 2022)

• Record Type: Journal Article
• Authors: Cheng, Junjie; Hu, Jie; Wang, Jiawei; Huang, Zefei; Ye, Baoqian
• Other Names: Salvestrini Stefano Academic Editor.
• Is Part Of: Adsorption science & technology. Volume 2022(2022)
• Publication Date: 2022-04-12
• Subjects: Adsorption -- Periodicals; Adsorption; Periodicals; 541.33505
• DOI: 10.1155/2022/4790592
• Languages: English
• ISSNs: 0263-6174

Abstract

Abstract : As oil and chemical spills pose a significant threat to the water environment, the need to develop efficient sorbent materials to remove oil and organic pollutants from water has arisen. This study aimed to develop a simple modification scheme to impart oil and water selective absorption capacity to a common three-dimensional porous material. Commercially available polyurethane sponges were used as the base material, and vinyl silica aerogel particles were loaded onto the sponges using polydimethylsiloxane as an adhesion agent. As a result, the water contact angle of the modified sponge increased from 118° to 149.2°, and the water absorption decreased from 106.5 g/g to 0.2 g/g; it could absorb oil in oil-water mixtures without absorbing water and maintain an excellent level of selective absorption ability after 20 cycles. This modification scheme is easy to operate and robust and is a scheme of practical application.