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Zhong H, Zhang J, Tang X, et al. Mass spectrometric monitoring of interfacial photoelectron transfer and imaging of active crystalline facets of semiconductors. Nat Commun. 2017;8:14524doi: 10.1038/ncomms14524.
Zhong, H., Zhang, J., Tang, X., Zhang, W., Jiang, R., Li, R., Chen, D., Wang, P., & Yuan, Z. (2017). Mass spectrometric monitoring of interfacial photoelectron transfer and imaging of active crystalline facets of semiconductors. Nature communications, 814524. https://doi.org/10.1038/ncomms14524
Zhong, Hongying, et al. "Mass spectrometric monitoring of interfacial photoelectron transfer and imaging of active crystalline facets of semiconductors." Nature communications vol. 8 (2017): 14524. doi: https://doi.org/10.1038/ncomms14524
Zhong H, Zhang J, Tang X, Zhang W, Jiang R, Li R, Chen D, Wang P, Yuan Z. Mass spectrometric monitoring of interfacial photoelectron transfer and imaging of active crystalline facets of semiconductors. Nat Commun. 2017 Feb 22;8:14524. doi: 10.1038/ncomms14524. PMID: 28224986; PMCID: PMC5322523.
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Nat Commun. 2017 Feb 22;8:14524. doi: 10.1038/ncomms14524.

Mass spectrometric monitoring of interfacial photoelectron transfer and imaging of active crystalline facets of semiconductors.

Nature communications

Hongying Zhong, Juan Zhang, Xuemei Tang, Wenyang Zhang, Ruowei Jiang, Rui Li, Disong Chen, Peng Wang, Zhiwei Yuan

Affiliations

  1. Mass Spectrometry Center for Structural Identification of Biological Molecules and Precision Medicine, Institute of Public Health and Molecular Medicine Analysis, Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China.

PMID: 28224986 PMCID: PMC5322523 DOI: 10.1038/ncomms14524

Abstract

Monitoring of interfacial electron transfer (ET) in situ is important to understand the ET mechanism and designing efficient photocatalysts. We describe herein a mass spectrometric approach to investigate the ultrafast transfer of photoelectrons that are generated by ultraviolet irradiation on surfaces of semiconductor nanoparticles or crystalline facets. The mass spectrometric approach can not only untargetedly detect various intermediates but also monitor their reactivity through associative or dissociative photoelectron capture dissociation, as well as electron detachment dissociation of adsorbed molecules. Proton-coupled electron transfer and proton-uncoupled electron transfer with radical initiated polymerization or hydroxyl radical abstraction have been unambiguously demonstrated with the mass spectrometric approach. Active crystalline facets of titanium dioxide for photocatalytic degradation of juglone and organochlorine dichlorodiphenyltrichloroethane are visualized with mass spectrometry imaging based on ion scanning and spectral reconstruction. This work provides a new technique for studying photo-electric properties of various materials.

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