Issue 12, 2017

A 3D titanate aerogel with cellulose as the adsorption-aggregator for highly efficient water purification

Abstract

Making full use of the hydrophilicity, hydroxyl reactivity, high strength and stiffness, low weight and biodegradability of cellulose, a novel cellulose-based adsorption-aggregator is creatively exploited. In this work, a 3D titanate aerogel with cellulose as the adsorption-aggregator has been fabricated for highly efficient water purification. Herein, the polyhydric cellulose not only acts as a crosslinking agent, but also facilitates ion-induced aggregation, which strongly promotes the adsorption efficiency of the titanate and effectively improves its inherent shortcomings as an inorganic adsorbent. The Pb2+, Sr2+, Cu2+, Ra2+, and Cd2+ adsorption capacities surprisingly reach 2.46, 1.43, 2.51, 1.22, and 1.98 mmol g−1, respectively. Moreover, it may be applied in the fields of water purification agents, oxidants, catalysts, disinfectants and photoelectrochemical components, in view of the hydroxyl oxidation, hydroxyl induction, disinfection, and water purification abilities of cellulose. Therefore, the development of cellulose adsorption-aggregating agents is both reasonable and of great value.

Graphical abstract: A 3D titanate aerogel with cellulose as the adsorption-aggregator for highly efficient water purification

Supplementary files

Article information

Article type
Paper
Submitted
11 Dec 2016
Accepted
20 Feb 2017
First published
20 Feb 2017

J. Mater. Chem. A, 2017,5, 5813-5819

A 3D titanate aerogel with cellulose as the adsorption-aggregator for highly efficient water purification

Y. Xiong, C. Wang, H. Wang, Q. Yao, B. Fan, Y. Chen, Q. Sun, C. Jin and X. Xu, J. Mater. Chem. A, 2017, 5, 5813 DOI: 10.1039/C6TA10638B

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