Superelastic and Photothermal RGO/Zr-Doped TiO2 Nanofibrous Aerogels Enable the Rapid Decomposition of Chemical Warfare Agents

被引：26

作者：

Liao, Yalong ^{[1
]}

Song, Jun ^{[1
]}

Si, Yang ^{[1
,2
]}

Yu, Jianyong ^{[1
,2
]}

Ding, Bin ^{[1
,2
]}

机构：

[1] Donghua Univ, Coll Text, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

[2] Donghua Univ, Innovat Ctr Text Sci & Technol, Shanghai 200051, Peoples R China

来源：

NANO LETTERS | 2022年 / 22卷 / 11期

基金：

中国国家自然科学基金;

关键词：

photothermal catalysis; reduced graphene oxide; titanium dioxide; aerogels; chemical warfare agents; COMPOSITE AEROGELS; DEGRADATION; SARIN; OXIDE;

D O I：

10.1021/acs.nanolett.2c00776

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To date, the reckless use of deadly chemical warfare agents (CWAs) has posed serious risks to humanity, property, and ecological environment. Therefore, necessary materials able to rapidly adsorb and securely decompose these hazardous toxics are in urgent demand. Herein, three-dimensional (3D) reduced graphene oxide/Zr-doped TiO2 nanofibrous aerogels (RGO/ZT NAs) are synthesized by feasibly combining sol-gel electrospinning technology and a unidirectional freeze-drying approach. Benefiting from the synergetic coassembly of flexible ZT nanofibers and pliable RGO nanosheets, the hierarchically entangled fibrous frameworks feature ultralow density, superior elasticity, and robust fatigue resistance over 10(6) compressive cycles. In particular, the RGO incorporation is attributed to the achieved increased surface area, stronger light absorption, and decreased recombination of charge-carriers for photocatalysis. The highly porous 3D RGO/ZT NAs deliver enhanced photothermal catalytic activity for CWA degradation as well as excellent recyclability and good photostability. This work opens fresh horizons for developing advanced 3D aerogel-based photocatalysts in a controlled fashion.

引用

页码：4368 / 4375

页数：8

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