TiO2–reduced graphene oxide for the removal of gas-phase unsymmetrical dimethylhydrazine

Unsymmetrical dimethylhydrazine (UDMH) contaminated waste gas and related intermediates pose a great threat to human health. TiO2–reduced graphene oxide aerogel (rGA) samples with different graphene content levels were synthetized and characterized for the degradation of UDMH. The effects of GO cont...

Full description

Saved in:
Bibliographic Details
Published in:New journal of chemistry 2021-01, Vol.45 (1), p.394-402
Main Authors: Hou Ruomeng, Jia, Ying, Huang Yuanzheng, Shen Keke, Zhu, Huixin
Format: Article
Language:English
Subjects:
Aerogels
Conversion
Degradation
Dimethylhydrazines
Exhaust gases
Graphene
Photolysis
Titanium dioxide
Ultraviolet radiation
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Unsymmetrical dimethylhydrazine (UDMH) contaminated waste gas and related intermediates pose a great threat to human health. TiO2–reduced graphene oxide aerogel (rGA) samples with different graphene content levels were synthetized and characterized for the degradation of UDMH. The effects of GO content, humidity, and temperature were investigated under UV and VUV light, with highest UDMH conversion values of 68% and 95%, respectively. Compared with pure TiO2, the enhanced degradation activity of TiO2–rGA under UV light can be attributed to a synergetic effect between absorption and photocatalysis, while the high UDMH conversion under VUV light relies on photolysis and ozonation. The high oxygen-containing group content, rather than a high SSA, and electron trapping by graphene are key factors determining the outstanding performance of TiO2–rGA with 80 mg of GO. The prepared TiO2–graphene aerogels are promising for the degradation of gas-phase UDMH.
ISSN:1144-0546
1369-9261
DOI:10.1039/d0nj04617e