Self-fibering growth in the soot-templated CVD coating of silica on mesh for efficient oil/water separation. (15th September 2018)

• Record Type: Journal Article
• Authors: Zhang, Feng; Shi, Zhenwu; Xu, Chengyun; Huo, Dayun; Zhang, Wei; Peng, Changsi
• Is Part Of: Materials & design. Volume 154(2018)
• Page Start: 370
• Page End: 377
• Publication Date: 2018-09-15
• Subjects: Superhydrophobic -- Oil/water separation -- Silica nano-fibered network -- Flow-guided dehydration -- Tube separation; Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2018.05.038
• Languages: English
• ISSNs: 0264-1275

Abstract

Abstract: A comprehensive study of SiO2 grown by chemical vapor deposition is conducted on soot coated copper mesh, from which an excellent superhydrophobic-superoleophilic filter mesh is demonstrated using the structure of nano-fibered network. A dynamical model of "flow-guided dehydration" including the microscopic interplay between "flow-induced diffusion" and dehydration is presented. Furthermore, we present a device based on tubular separator to purify oily wastewater that is very much like tap-water delivering in daily life, which does not cause the problem of water blockage. Graphical abstract: Unlabelled Image Highlights: A comprehensive study of SiO2 grown by chemical vapor deposition is conducted on soot-coated porous mesh. Silica nano-fibred network mesh with good mechanical abrasion and durability is fabricated using chemical vapor deposition. The mesh shows excellent superhydrophobic and superoleophilic properties which can effectively separate oil-water mixtures. Tubular separator is presented to avoid the effect of water blockage on oil-penetration in most-used filter system.