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Spin selection in atomic-level chiral metal oxide for photocatalysis

Chemistry

Spin selection in atomic-level chiral metal oxide for photocatalysis

M. Ai, L. Pan, et al.

Discover how chiral structures in ZnO enhance photocatalytic performance by acting as spin filters and increasing O2 production and contaminant photodegradation activity. This groundbreaking research was conducted by Minhua Ai, Lun Pan, Chengxiang Shi, Zhen-Feng Huang, Xiangwen Zhang, Wenbo Mi, and Ji-Jun Zou.

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Playback language: English
Abstract
This study demonstrates that chiral structure in ZnO can induce spin selectivity to enhance photocatalytic performance. Chiral ZnO crystals, synthesized using chiral methionine molecules, exhibit hierarchical chirality and act as spin filters, polarizing photoinduced carriers. This polarization extends carrier lifetime and increases triplet species, leading to 1.9-2.0 times higher O2 production and 2.0-2.5 times higher contaminant photodegradation activity compared to achiral ZnO. This work provides a strategy to manipulate spin properties in metal oxides for spin-related redox catalysis.
Publisher
Nature Communications
Published On
Jul 28, 2023
Authors
Minhua Ai, Lun Pan, Chengxiang Shi, Zhen-Feng Huang, Xiangwen Zhang, Wenbo Mi, Ji-Jun Zou
Tags
chiral structure
ZnO
photocatalysis
spin selectivity
O2 production
photodegradation
redox catalysis

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