期刊
ACS NANO
卷 13, 期 1, 页码 295-304出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.8b06136
关键词
MXene; hydrogel; graphene oxide; self-convergence; redox catalysis
类别
资金
- National Natural Science Foundation of China [U1463204, 20903023, 51802040, 21872029, 21173045]
- Award Program for Minjiang Scholar Professorship
- Independent Research Project of State Key Laboratory of Photocatalysis on Energy and Environment [2014A05]
- first Program of Fujian Province for Top Creative Young Talents
- Natural Science Foundation (NSF) of Fujian Province [2017J07002]
- Program for Returned High Level Overseas Chinese Scholars of Fujian province
- China Postdoctoral Science Foundation [2018M630727]
Assembly of two-dimensional (2D) layered structures into three-dimensional (3D) macroscopic hydrogel has been an enduring attracting research theme. However, the anisotropic intersheet cross -linking to form Ti3C2Tx MXene-based hydrogel remains intrinsically challenging because of the superior hydrophilic nature of 2D Ti3C2Tx. Herein, Ti3C2Tx MXene is ingeniously assembled into the 3D macroscopic hydrogel under mild conditions by a graphene oxide (GO)-assisted self-convergence process. During the process, GO is reduced to reduced graphene oxide (RGO) by virtue of the reduction ability of Ti3C2Tx, leading to the partial removal of hydrophilic oxygen-containing groups and an increase of the hydrophobicity and the pi-conjugated structures of RGO, which enables the assembly of RGO into a 3D RGO framework. Simultaneously, Ti3C2Tx is self-converged to be incorporated into the RGO framework by intimate interfacial interactions, thereby generating Ti3C2Tx-based hydrogel. The hydrogel with interconnected porous structure holds great potential as a promising material platform for photoredox catalysis. With the incorporation of Eosin Y photosensitizer, the functional Ti3C2Tx-based hydrogel exhibits enhanced photoactivity compared to the powder counterpart and features easy operability. This work enriches the rational utilization of GO/MXene colloid chemistry to design Ti3C2Tx MXene-based hydrogels with improved overall efficacy in practical applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据