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Title:
OIL-SOLUBLE CARBON QUANTUM DOTS AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/072939
Kind Code:
A1
Abstract:
A type of oil-soluble carbon quantum dots and a preparation method therefor. The preparation comprises using a surfactant as a sole carbon source to perform one-step carbonization to obtain oil-soluble carbon quantum dots; the oleophilic end of the surfactant contains 12-30C, and a hydrophilic group thereof has poor structure thermal stability and decomposes easily by heating. The surfactant comprises one among an alkyl anionic series, alkyl cationic series, Tween series, Span series, glycosyl series, betaine series, lecithin series and amino acid series. The one-step carbonization method comprises a solvothermal method and a solvent-free solid phase reaction method. The present method has various types of carbon sources, a broad range of sources, is low-priced and has easy availability; the obtained oil-soluble carbon quantum dots are similar in appearance, uniform in size, and contain nanocrystalline structures. The present method uses surfactants containing different elements as carbon sources to prepare heteroatom-doped oil-soluble carbon quantum dots.

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Inventors:
ZHANG HEFENG (CN)
FANG LAIPING (CN)
Application Number:
PCT/CN2019/123184
Publication Date:
April 22, 2021
Filing Date:
December 05, 2019
Export Citation:
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Assignee:
UNIV SHANTOU (CN)
International Classes:
C01B32/15; C09K11/65
Foreign References:
CN104192827A2014-12-10
CN108441209A2018-08-24
CN107722973A2018-02-23
CN107555417A2018-01-09
CN109652071A2019-04-19
CN108641705A2018-10-12
US20160060121A12016-03-03
Other References:
LI JUNFEN; LI PENGXIA; WANG DONGXIU; DONG CHUAN: "One-pot synthesis of aqueous soluble and organic soluble carbon dots and their multi-functional applications", TALANTA, ELSEVIER, AMSTERDAM, NL, vol. 202, 1 January 1900 (1900-01-01), NL, pages 375 - 383, XP085708037, ISSN: 0039-9140, DOI: 10.1016/j.talanta.2019.05.019
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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