Title:
PREPARATION METHOD FOR HOLLOW NITROGEN-DOPED CARBON-COATED TITANIUM DIOXIDE PHOTOCATALYST
Document Type and Number:
WIPO Patent Application WO/2023/241152
Kind Code:
A1
Abstract:
Disclosed in the invention is a preparation method for a hollow nitrogen-doped carbon-coated titanium dioxide photocatalyst. The preparation method comprises the following steps: (1) preparing a silicon dioxide sphere; (2) preparing a titanium dioxide-coated silicon dioxide sphere; (3) preparing nitrogen-doped carbon-coated titanium dioxide using a chemical vapor deposition process; (4) preparing a hollow nitrogen-doped carbon-coated titanium dioxide photocatalyst. The method of the present invention for the first time uses a template process and a chemical vapor deposition process (CVD) in combination to prepare a hollow nitrogen-doped carbon-coated titanium dioxide photocatalyst. By means of adjusting a time and temperature of pyridine deposition, the deposition thickness of a nitrogen-doped carbon material can be adjusted and controlled.
Inventors:
PENG WENCHAO (CN)
LIU XIAOMEI (CN)
MA BIAO (CN)
LIU XIAOMEI (CN)
MA BIAO (CN)
Application Number:
PCT/CN2023/082778
Publication Date:
December 21, 2023
Filing Date:
March 21, 2023
Export Citation:
Assignee:
UNIV TIANJIN (CN)
International Classes:
B01J35/08; B01J27/24; B01J37/00; C02F1/72
Foreign References:
| CN104071836A | 2014-10-01 | |||
| CN107452945A | 2017-12-08 | |||
| CN109453799A | 2019-03-12 | |||
| CN114904558A | 2022-08-16 | |||
| US20050003644A1 | 2005-01-06 |
Attorney, Agent or Firm:
BEIJING LINGZHUAN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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