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Published in: Cellulose 13/2020

06-07-2020 | Original Research

Cellulose hydrogel functionalized titanate microspheres with self-cleaning for efficient purification of heavy metals in oily wastewater

Authors: Ye Xiong, Lulu Xu, Chunde Jin, Qingfeng Sun

Published in: Cellulose | Issue 13/2020

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Abstract

Heavy metal pollution containing large amounts of oil pollutants is becoming one of the major water pollution categories. The presence of oil can seriously hinder the performance of existing heavy metal ion scavengers. In order to change this embarrassment, a self-cleaning titanate hydrogel microsphere is developed and applied to the treatment of oily heavy metal wastewater. Gel functionalized titanate microspheres are prepared by a simple sol–gel process through ionic liquid dissolved cellulose solution as raw materials. As a result, the hybrid hydrogel microspheres inherit and integrate the intrinsic properties of both titanate and cellulose hydrogels, and exhibit an excellent ability to handle this oily wastewater. In detail, the oil contact angle underwater for the THMS is greater than ~ 153°, and its adsorption capacity of Cu(II) ions is up to 176.4 mg/g. Furthermore, it shows a significant improvement in adsorption efficiency, application range, and recycling behavior. More importantly, this easy-to-use self-cleaning method can be extended to a variety of other adsorbents to efficiently treat oily wastewater. In summary, this work may provide a viable and easy way for oily wastewater treatment from multiple sources.

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Metadata
Title
Cellulose hydrogel functionalized titanate microspheres with self-cleaning for efficient purification of heavy metals in oily wastewater
Authors
Ye Xiong
Lulu Xu
Chunde Jin
Qingfeng Sun
Publication date
06-07-2020
Publisher
Springer Netherlands
Published in
Cellulose / Issue 13/2020
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-020-03329-w

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