Title:
CARBON NITRIDE-MODIFIED TITANIUM DIOXIDE SUPER-HYDROPHILIC POROUS FILM AND PREPARATION METHOD AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2015/196738
Kind Code:
A1
Abstract:
A carbon nitride-modified titanium dioxide super-hydrophilic porous film and a preparation method and use thereof. The method comprises the following steps: calcining dicyandiamide or tripolycyanamide as a precursor, to prepare a carbon nitride nanosheet; ultrasonically dispersing the carbon nitride nanosheet in anhydrous ethanol so as to obtain a carbon nitride dispersion liquid, then adding a titanium dioxide precursor, diacetone and an alcohol amine, uniformly stirring to obtain a uniform solution, dropwise adding a mixed liquid prepared from the anhydrous ethanol, water and an acid into the uniform solution so as to obtain a carbon nitride/titanium dioxide composite sol, aging for a period of time, applying the carbon nitride/titanium dioxide composite sol on a preprocessed substrate, drying and irradiating using ultraviolet, so as to obtain a carbon nitride-modified titanium dioxide super-hydrophilic porous film. The film is prepared from the raw materials which are cheap and easily available, the preparation condition is easy to realize, and the film can be obtained without calcining at a high temperature, so that the preparation cost of a super-hydrophilic film article is reduced, facilitating the popularization and application of the technique.
Inventors:
HUANG HONG (CN)
CHEN YANFENG (CN)
SITU YUE (CN)
CHEN YANFENG (CN)
SITU YUE (CN)
Application Number:
PCT/CN2014/093047
Publication Date:
December 30, 2015
Filing Date:
December 04, 2014
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
B01J27/24; B01J37/34; C09K3/18
Foreign References:
| CN104084229A | 2014-10-08 | |||
| CN101844077A | 2010-09-29 | |||
| CN101591769A | 2009-12-02 | |||
| US20060247125A1 | 2006-11-02 | |||
| CN102277609A | 2011-12-14 | |||
| JP3829183B2 | 2006-10-04 |
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
广州市华学知识产权代理有限公司 (CN)
广州市华学知识产权代理有限公司 (CN)
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