Title:
HIGH-FLUX MODIFIED TITANIUM OXIDE COMPOSITE ULTRAFILTRATION MEMBRANE AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/248900
Kind Code:
A1
Abstract:
Disclosed are a high-flux modified titanium oxide composite ultrafiltration membrane and application thereof; in the present invention, cysteic acid is selected to modify the surface of a membrane layer; the carboxyl group on the cysteic acid reacts with a silane coupling agent on a ceramic membrane, improving the hydrophilicity of the membrane and causing the water surface contact angle of the titanium oxide film to change from 38° to 6–10°; this is because the hydrophilic group of cysteic acid comprises two parts, a sulfonyl group and an amino group, and the hydrophilic part of the cysteic acid can form multiple hydrogen bonds with solvents, causing the surface of the film to be highly hydrophilic, improving anti-pollution performance and water flux.
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Inventors:
CHEN YUNQIANG (CN)
HONG YUBIN (CN)
FANG FULIN (CN)
LAN WEIGUANG (CN)
HONG YUBIN (CN)
FANG FULIN (CN)
LAN WEIGUANG (CN)
Application Number:
PCT/CN2020/142099
Publication Date:
December 16, 2021
Filing Date:
December 31, 2020
Export Citation:
Assignee:
SUNTAR MEMBRANE TECHNOLOGY XIAMEN CO LTD (CN)
International Classes:
B01D71/02; B01D61/14; B01D67/00; B01D69/02; B01D69/12; C02F1/40; C02F1/44
Foreign References:
| CN105960273A | 2016-09-21 | |||
| CN104772044A | 2015-07-15 | |||
| CN106178981A | 2016-12-07 | |||
| US20120261343A1 | 2012-10-18 | |||
| CN1481928A | 2004-03-17 |
Other References:
MAGUIRE-BOYLE SAMUEL J., HUSEMAN JOSEPH E., AINSCOUGH THOMAS J., OATLEY-RADCLIFFE DARREN L., ALABDULKAREM ABDULLAH A., AL-MOJIL SA: "Superhydrophilic Functionalization of Microfiltration Ceramic Membranes Enables Separation of Hydrocarbons from Frac and Produced Water", SCIENTIFIC REPORTS, vol. 7, no. 1, 12267, 1 December 2017 (2017-12-01), pages 1 - 9, XP055879162, DOI: 10.1038/s41598-017-12499-w
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO., LTD.XIAMEN (CN)
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