Title:
BARIUM STRONTIUM TITANATE SOLID SOLUTION NANO CUBIC CRYSTAL, METHOD FOR PREPARING SAME, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/236151
Kind Code:
A1
Abstract:
Provided are a barium strontium titanate solid solution nano cubic crystal, a method for preparing same, and use thereof. Adopting a sol precipitation method, a highly-dispersed barium strontium titanate solid solution nano cubic crystal sol is obtained in a triethylene glycol solvent by means of hydrolysis of tetrabutyl titanate; and then, by adding deionized water into the nano cubic crystal sol, a barium strontium titanate nano cubic crystal precipitate is obtained. The solid solution is constructed by replacing strontium with barium, so that the piezoelectric property of a catalyst can be adjusted, inversion symmetry can be broken by adopting a strain gradient, and piezoelectric polarization is induced by means of a flexoelectric effect, further improving the piezoelectric catalytic activity of the catalyst. Compared with an existing modified strontium titanate catalyst, under a condition of pure ultrasonic vibration, the solid solution nano cubic crystal shows excellent piezoelectric catalytic activity, bisphenol-A is almost completely degraded within 16 min, and the catalytic performance is far higher than that of the existing strontium titanate composite catalyst.
Inventors:
LU JIANMEI (CN)
LI NAJUN (CN)
LI NAJUN (CN)
Application Number:
PCT/CN2022/097930
Publication Date:
December 14, 2023
Filing Date:
June 09, 2022
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
C01G23/00
Foreign References:
| CN103613125A | 2014-03-05 | |||
| CN114505068A | 2022-05-17 | |||
| US20100051903A1 | 2010-03-04 | |||
| JP2005298679A | 2005-10-27 | |||
| JP2007022857A | 2007-02-01 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)
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