Journal
COMPOSITES COMMUNICATIONS
Volume 25, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.coco.2021.100763
Keywords
Plant fiber; Hexamethyldisilazane; Hydrophobicity; Oil/water separation
Categories
Funding
- Scientific Research Foundation of Fujian University of Technology [E0600366]
- National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials [2020KFJJ04]
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A hydrophobic plant fiber sponge (PFS) modified with hexamethyldisilazane (HMDS) shows high oil absorptive capacity and selectivity, demonstrating potential in oil/water separation and organic solvents removal.
Increasing environmental problems caused by the emission of crude oil, petroleum products, and toxic organic solvents have threatened ecosystems and human health. Renewable and eco-friendly natural materials are considered as the most promising absorbents for removing oils and organic solvents from water. In this work, a hydrophobic plant fiber sponge (PFS) is successfully prepared via a simple vapor treatment strategy with hexamethyldisilazane (HMDS) (defined as PFS@HMDS). The as-prepared PFS@HMDS with high porosity, high mechanical durability, and excellent hydrophobicity with a water contact angle of 145 degrees exhibits high oil absorptive capacity (15-40 g/g) and selectivity. It also shows the excellent structural stability, durability, and high reusability in the repeated absorption/desorption cyclic testing. More importantly, it can achieve continuous oil/water separation with the assistance of a miniature diaphragm pump. Owing to these favorable advantages, the PFS@HMDS demonstrates its potential application in oil/water separation and organic solvents removal.
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