Strain-Induced Tribocatalytic Activity of 2D ZnO Quantum Dots

Title

Strain-Induced Tribocatalytic Activity of 2D ZnO Quantum Dots

Creator

Kumbhakar P.; Mishra S.; Kumbhakar P.; Barik R.K.; Tiwary C.S.; Singh A.K.

Description

The use of low-frequency vibration or high-frequency ultrasound waves to create polarization and an inherent electric field in piezo-tribocatalysts has recently been shown to be a novel advanced oxidation process. In this study, we have demonstrated the synthesis of two-dimensional (2D) ZnO quantum dots (QDs) and their strain-induced tribocatalytic effect, where the triboelectric charges generated under the influence of friction and strain are used to facilitate the decomposition of organic dye molecules. The catalytic performance of 2D QD catalysts can be tuned by modulation of the strain-induced band-gap variation, which are typically regarded as the active sites. The underlying mechanism for the strain-induced catalytic performance is due to the presence of defective dipole moments. Detailed theoretical investigations reveal strain-induced charge-transfer-dependent catalytic properties of the 2D ZnO QD-polymer interface. We believe that the present work provides a fundamental understanding of the design of high-performance catalysis applications for water cleaning and emerging technologies. 2024 American Chemical Society.

Source

Journal of Physical Chemistry C, Vol-128, No. 25, pp. 10733-10741.

Date

2024-01-01

Publisher

American Chemical Society

Coverage

Kumbhakar P., Department of Physics and Electronics, CHRIST (Deemed to be University), Bangalore, 560029, India; Mishra S., Materials Research Centre, Indian Institute of Science, Bangalore, 560012, India; Kumbhakar P., Nanoscience Laboratory, Department of Physics, National Institute of Technology, West Bengal, Durgapur, 713209, India; Barik R.K., Materials Research Centre, Indian Institute of Science, Bangalore, 560012, India; Tiwary C.S., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, West Bengal, Kharagpur, 721302, India; Singh A.K., Materials Research Centre, Indian Institute of Science, Bangalore, 560012, India

Rights

Restricted Access

Relation

ISSN: 19327447

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1021/acs.jpcc.4c02798

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