科研之友
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摘要
A novel interfacial reaction nucleation mechanism forthe preparation of water-soluble Ag-In-S quantum dots (AIS QDs)was proposed in which interfacial acid regulates the concentration ofhydroxide ions outside the complex and sulfur sources attack cations atthe interface of the complex, covalent bonds between cations and sulfursources are formed at the interface of the complex, and the nucleationand growth of crystals isfinished at room temperature. By bypassingthe heating process normally necessary for crystal nucleation andgrowth, AIS QDs can be produced on a large scale under simple, mildconditions. At the same time, the characteristics of this mechanismenable AIS QDs to be directly synthesized in an organic pollutantsolution. This study represents a significant advance in the mechanismof crystal synthesis and contributes to the photocatalytic decom-position of organic pollutants from theory to practice.
