Ultrasonic desulfurization of amphiphilic magnetic-Janus nanosheets in oil-water mixture system

•Changing Fenton reagent from uniparental to amphiphilic by Amphiphilic Janus material.•Supporting the Production of Hydroxyl Radicals by Ultrasound.•Improving the oxidative desulfurization ability and reusability of Fenton reagent. Fe3O4 was obtained by reacting FeCl2 and FeCl3 with polyethylene gl...

Full description

Saved in:
Bibliographic Details
Published in:Ultrasonics sonochemistry 2021-08, Vol.76, p.105662-105662, Article 105662
Main Authors: Shi, Chunwei, Zhang, Xue, Zhang, Xiaoyan, Chen, Ping, Xu, Lingzi
Format: Article
Language:English
Subjects:
Desulphurization
Iron oxide
Janus
Modification
Original
Ultrasonic wave
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Changing Fenton reagent from uniparental to amphiphilic by Amphiphilic Janus material.•Supporting the Production of Hydroxyl Radicals by Ultrasound.•Improving the oxidative desulfurization ability and reusability of Fenton reagent. Fe3O4 was obtained by reacting FeCl2 and FeCl3 with polyethylene glycol, and labeled onto a amphiphilic Janus nanosheet. It was confirmed by infrared spectroscopy, SEM, AFM and EDS that the Fe3O4 nanoparticles changed from hydrophilic to amphiphilic. The oxidative desulfurization performance of amphiphilic iron oxide was studied. Results showed that the Janus nanosheets labeled with Fe3O4 could significantly improve the removal rate of thiophene sulfide in simulated oil synergistically with ultrasonic waves, and the desulfurization rate could reach 100%. Further, the effect of ultrasound on the sensing ability of the oil–water interface was studied and the ultrasonic attenuation coefficient was calculated. In addition to the desulfurization mechanism of Fe3O4, it was found that although the ultrasonic attenuation coefficient of the amphiphilic nanosheets was high, the number of hydroxyl radicals determined the desulfurization efficiency. The amphiphilic Fe ions were more favorable for the formation of hydroxyl radicals than the single hydrophilic ones.
ISSN:1350-4177
1873-2828
DOI:10.1016/j.ultsonch.2021.105662