Remarkably enhanced ion-exchange capacity of H2O2-intercalated layered titanate

Xing Wang; Wei Wei; Jiaqiao Hu; Sen Li; Yong Wang; Lixiong Yin; Xingang Kong; Qi Feng

doi:10.1039/D1CC01387D

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Remarkably enhanced ion-exchange capacity of H₂O₂-intercalated layered titanate†

Xing Wang,

^ab Wei Wei,^c Jiaqiao Hu,^b Sen Li,

^b Yong Wang,^a Lixiong Yin,^a Xingang Kong

*^a and Qi Feng

*^a

Author affiliations

* Corresponding authors

^a School of Materials Science and Engineering, Shaanxi University of Science and Technology, Weiyang, Xi’an, Shaanxi 710021, P. R. China
E-mail: yezhu_1983@163.com

^b Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, Hayashi-cho 2217-20, Takamatsu-Shi, Japan

^c Oil and Gas Technology Research Institute Changqing Oilfield Branch Company of PetroChina, National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gasfields, Weiyang, Xi’an, Shaanxi 710018, P. R. China

Abstract

H₂O₂-intercalated layered titanate H_1.07Ti_1.73O₄ (H₂O₂-HTO) exhibits a dramatically enhanced ion-exchange capacity and remarkably improved reaction rate with various divalent cations. The intercalation can increase the negative charge density of the TiO₆ octahedral layer and the number of ion-exchangeable H⁺ by forming a Ti(IV)–O–O–H bond that is the driving force to change the ion exchange performance.

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Article information

DOI: https://doi.org/10.1039/D1CC01387D
Article type: Communication
Submitted: 15 Mar 2021
Accepted: 23 Jun 2021
First published: 24 Jun 2021

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Chem. Commun., 2021,57, 7394-7397

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Remarkably enhanced ion-exchange capacity of H₂O₂-intercalated layered titanate

X. Wang, W. Wei, J. Hu, S. Li, Y. Wang, L. Yin, X. Kong and Q. Feng, Chem. Commun., 2021, 57, 7394 DOI: 10.1039/D1CC01387D

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Chemical Communications