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Journal Article
Thermocatalytic hydrogen peroxide generation and environmental disinfection by Bi2Te3 nanoplates
2021
Overview
The highly reactive nature of reactive oxygen species (ROS) is the basis for widespread use in environmental and health-related fields. Conventionally, there are only two kinds of catalysts used for ROS generation: photocatalysts and piezocatalysts. However, their usage has been limited due to various environmental and physical factors. To address this problem, herein, we report thermoelectric materials, such as Bi
2
Te
3
, Sb
2
Te
3
, and PbTe, as thermocatalysts which can produce hydrogen peroxide (H
2
O
2
) under a small surrounding temperature difference. Being the most prevalent environmental factors in daily life, temperature and related thermal effects have tremendous potential for practical applications. To increase the practicality in everyday life, bismuth telluride nanoplates (Bi
2
Te
3
NPs), serving as an efficient thermocatalyst, are coated on a carbon fiber fabric (Bi
2
Te
3
@CFF) to develop a thermocatalytic filter with antibacterial function. Temperature difference induced H
2
O
2
generation by thermocatalysts results in the oxidative damage of bacteria, which makes thermocatalysts highly promising for disinfection applications. Antibacterial activity as high as 95% is achieved only by the treatment of low-temperature difference cycles. The current work highlights the horizon-shifting impacts of thermoelectric materials for real-time purification and antibacterial applications.
Temperature difference induced H
2
O
2
generation by thermoelectric materials is an attractive strategy for environmental remediation purposes. Here the authors demonstrate Bi
2
Te
3
nanoplates based antibacterial filter as an effective candidate for indoor disinfection applications.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
