Title:
FLUORINE-FREE, WATERPROOF AND MOISTURE-PROOF SUPERHYDROPHOBIC ACTIVATED CARBON, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/103997
Kind Code:
A1
Abstract:
A fluorine-free, waterproof and moisture-proof superhydrophobic activated carbon, and a preparation method therefor and the use thereof, which belong to the technical field of bionic nano-coatings. The method comprises: after activated carbon particles are dried, firstly, soaking same in a mixed pretreatment solution containing polydimethylsiloxane and a hydrophobic silicon dioxide nano-powder, taking out and airing same until there are no obvious liquid drops on the surface, then, placing same in an aqueous superhydrophobic modification solution, loading modified nanoparticles on the activated carbon by means of rotary evaporation, and finally, curing same at a high temperature to obtain a fluorine-free, superhydrophobic and moisture-proof activated carbon. The prepared product can be used in multiple fields such as VOC removal, water purification, industrial wastewater treatment, and factory tail gas catalysis, has a good resistance effect on water vapor, and can maintain good moisture-proof and selective adsorption characteristics under high-humidity conditions. The method has characteristics such as a low cost, a simple process flow, low equipment requirements, and a flexible and changeable design scheme, and is beneficial for industrial large-scale production.
Inventors:
ZHANG YOUFA (CN)
JIAO XUAN (CN)
SU YOURONG (CN)
JIAO XUAN (CN)
SU YOURONG (CN)
Application Number:
PCT/CN2022/136733
Publication Date:
June 15, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
NANJING JIDE ENVIRONMENT TECH CO LTD (CN)
NANJING JIDE ENVIRONMENT TECH CO LTD (CN)
International Classes:
B01J20/20; C01B32/372; B01J20/28; B01J20/32
Foreign References:
| CN114408924A | 2022-04-29 | |||
| CN108341990A | 2018-07-31 | |||
| CN107321304A | 2017-11-07 | |||
| CN113604095A | 2021-11-05 |
Other References:
JIAO XUAN, LI MEITING, CHENG ZHEN, YU XINQUAN, YANG SHU, ZHANG YOUFA: "Recyclable Superhydrophobic, Antimoisture-Activated Carbon Pellets for Air and Water Purification", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 12, no. 22, 3 June 2020 (2020-06-03), US , pages 25345 - 25352, XP093071140, ISSN: 1944-8244, DOI: 10.1021/acsami.0c06274
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD. (CN)
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