Title:
PT/TIN HIGH-EFFICIENCY PHOTOTHERMAL SYNERGISTIC CATALYST AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/258596
Kind Code:
A1
Abstract:
The present invention discloses a Pt/TiN high-efficiency photothermal synergistic catalyst and a preparation method therefor and the use thereof. The method comprises the following steps: using TiN as a carrier, a Pt salt as a Pt precursor, adsorbing Pt onto the surface of the TiN by means of an impregnation method; and roasting same to obtain the catalyst. The catalyst is simple to prepare and has a high repeatability, and the surface layer of the TiN particle is oxidized into a defect-rich TiO 2 for anchoring Pt, by means of one-step air roasting. The catalyst couples the photocatalysis of TiO 2 with the plasma resonance of Pt and the photothermal conversion performance of TiN, and exhibits a high efficiency photothermal synergistic catalytic degradation performance with respect to VOCs. When the initial concentration of toluene is 220 ppm, and the mass space velocity is 72,000 mL g -1h -1, the loading amount of Pt is 1%, and after illuminating for 12 min, the temperature of the catalyst spontaneously rises to 100ºC and the degradation rate of toluene reaches 100%, and the catalyst has a good stability and the performance thereof is obviously superior to that of Pt/P25.
Inventors:
QIU YONGCAI (CN)
JIN XIAOJING (CN)
LI ANQI (CN)
WU PENG (CN)
ZHAO SHUAIQI (CN)
JIN XIAOJING (CN)
LI ANQI (CN)
WU PENG (CN)
ZHAO SHUAIQI (CN)
Application Number:
PCT/CN2020/124998
Publication Date:
December 30, 2021
Filing Date:
October 30, 2020
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
B01D53/72; B01J27/24; B01D53/86; B01J37/02; B01J37/08
Domestic Patent References:
| WO2009091809A1 | 2009-07-23 |
Foreign References:
| CN101856618A | 2010-10-13 | |||
| CN101722057A | 2010-06-09 | |||
| CN110398077A | 2019-11-01 | |||
| CN1917966A | 2007-02-21 |
Other References:
FANG JUNFEI;FENG RONG;GOU YUCHUN: "Optical Absorption and Photo-Thermal Conversion Properties of TiO2/TiN Composite Nanofluids", MICRONANOELECTRONIC TECHNOLOGY, vol. 56, no. 1, 13 December 2018 (2018-12-13), pages 20 - 25, XP055882860, ISSN: 1671-4776, DOI: 10.13250/j.cnki.wndz.2019.01.004
Attorney, Agent or Firm:
YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
Download PDF: