Journal
POWDER TECHNOLOGY
Volume 356, Issue -, Pages 284-294Publisher
ELSEVIER
DOI: 10.1016/j.powtec.2019.08.024
Keywords
Sorption; Magnetic; Bentonite; Amphoteric surfactant; Cationic surfactant; Phenol
Categories
Funding
- National Natural Science Foundation of China [41271244]
- Key Research and Development Program of Shaanxi, China [2017SF-385]
Ask authors/readers for more resources
Magnetic bentonite (MBent) was modified by both amphoteric surfactant (BS) and cationic surfactant (CT). The structural characteristics of BS-CT-MBent were explored along with the factors primarily influencing their effectiveness in phenol sorption. The results indicated that BS-CT-MBent showed high separation potential and good stability. The carbon contents of BS-CT-MBent increased while specific surface areas decreased with increasing the BS and Cr loading level. The sorption capacities of BS-CT-MBent for phenol (198.74-205.81 mmol kg(-1)) were improved compared to MBent (16.34 mmol kg(-1)). The phenol sorption capacities on BS-CT-MBent increased with an increase of BS or CT loading level, while the phenol sorption efficiency decreased at high BS and CT loading level. The phenol sorption capacities decreased with an increase of pH, temperature and with a decrease of background electrolyte concentration. Hydrophobic phases formed by surfactants were the main phenol sorption domains and the hydrophobic partition was the key mechanism. (C) 2019 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available