A comparative study for oil-absorbing performance of octadecyltrichlorosilane treated Calotropis gigantea fiber and kapok fiber

被引：35
作者：
Zheng, Yian [1 ,2 ]
Cao, Enjuan [1 ]
Tu, Lixin [1 ]
Wang, Aiqin [3 ]
Hu, Huimin [4 ]
机构：
[1] Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Zhongwei High Tech Inst, Zhongwei 755000, Peoples R China
[3] Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China
[4] Shanghai Mag Tree Biotechnol Co Ltd, Shanghai 201203, Peoples R China
来源：
CELLULOSE | 2017年 / 24卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Calotropis gigantea fiber; Kapok fiber; Octadecyltrichlorosilane; Oil-absorbing performance; Oil-water separation; HYDROPHOBIC COTTON FIBERS; SPILL CLEANUP; OIL/WATER SEPARATION; SORPTION PROPERTIES; SORBENT MATERIALS; WATER SEPARATION; NATURAL SORBENTS; REMOVAL; SPONGES; CARBON;
D O I：
10.1007/s10570-016-1155-z
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
A hydrophobic layer was formed on smooth surfaces of Calotropis gigantea fiber (CGF) and kapok fiber (KF) by adsorption of octadecyltrichlorosilane (OTS) from a toluene solution and then a comparative study was carried out on the basis of various characterizations and oil-absorbing performances for the two natural plant fibers. The resulting OTS-CGF and OTS-KF exhibit outstanding hydrophobic-oleophilic property and an enhancement in the oil-absorbing capacity for engine oil, soybean oil and kerosene. Moreover, the fibers can be utilized for rapid and selective removal of oil spills on the water surface. Compared to KF, CGF seems to be acid-resistant during the hydrolysis process of OTS, with the result that the oil-absorbing capacity exhibits no significant decrease after ten cycles. Eventually, CGF-based material can be further developed for oil-water separation, demonstrating its potential as a promising alternative for treatment of oil-containing wastewaters.
引用
收藏
页码：989 / 1000
页数：12
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