Title:
DETERMINATION METHOD FOR INTERFACE PHOTOELECTRON MIGRATION AND MATERIAL PHOTOCATALYTIC ACTIVITY AND FOUR-DIMENSIONAL MICRO-IMAGING ANALYZER
Document Type and Number:
WIPO Patent Application WO/2018/059346
Kind Code:
A1
Abstract:
A determination method for interface photoelectron migration and material photocatalytic activity and a four-dimensional micro-imaging analyzer are provided. The four-dimensional micro-imaging analyzer comprises a sample target (1), a laser device (2), a slit (3), an extraction electrode (4), a hexapole (5), a quadrupole (6), a time-of-flight mass analyzer (7), a detector (8), and a device (9) for supplying voltage to the sample target (1), the slit (3), the extraction electrode (4), and the hexapole (5). The method exploits the tunneling effect generated on photogenerated electrons by a semiconductor material under laser irradiation, as well as the capture principle for electron acceptor modules, to determine the mass-to-charge ratio and ion signal intensity of interface migration photogenerated electrons captured by the electron acceptor modules, or of the product of a photochemical reaction induced by the electron acceptor modules capturing interface migration photogenerated electrons, thus obtaining photocatalytically active sites, and, via image reconstruction, obtaining microscopic imaging of the photocatalytically active sites. In the present invention photocatalytically active sites of semiconductor materials can be determined, while at the same time, the degree of difficulty of a photochemical reaction occurring on electron acceptor modules and the product of such a photochemical reaction can be determined.
Inventors:
ZHONG HONGYING (CN)
ZHANG JUAN (CN)
JIANG RUOWEI (CN)
ZHANG WENYANG (CN)
TANG XUEMEI (CN)
ZHANG JUAN (CN)
JIANG RUOWEI (CN)
ZHANG WENYANG (CN)
TANG XUEMEI (CN)
Application Number:
PCT/CN2017/103142
Publication Date:
April 05, 2018
Filing Date:
September 25, 2017
Export Citation:
Assignee:
UNIV CENTRAL CHINA NORMAL (CN)
International Classes:
G01N21/63
Foreign References:
| CN103227096A | 2013-07-31 | |||
| CN106323921A | 2017-01-11 | |||
| CN104597114A | 2015-05-06 | |||
| CN101520432A | 2009-09-02 | |||
| US5808300A | 1998-09-15 |
Other References:
XU, JING ET AL.: "Analysis of Rabies Virus Location in Mouse Brain Tissue by MALDI Imaging Mass Spectrometry", CHINESE JOURNAL OF IMMUNOLOGY, vol. 28, no. 6, 13 June 2012 (2012-06-13), pages 540 - 543, ISSN: 1000-484X
Attorney, Agent or Firm:
HUBEI WUHAN YONGJIA PATENT AGENCY CO., LTD (CN)
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