1：Experimental Design and Method Selection:

The study employs an ethanothermal solvothermal synthesis method to fabricate amorphous carbon dots (CDs) by reacting phenols with oxidants in ethanol at 180°C for 4 hours. The method is designed to control emission colors by varying phenol and oxidant combinations.

2：Sample Selection and Data Sources:

Phenols such as naphthalenediols (1,3-DHN, 2,7-DHN) and dihydroxybenzenes (o-, m-, p-DHB) are used as precursors, along with oxidants like K2S2O8, DDQ, NBS, etc. Samples are synthesized and purified via silica column chromatography.

3：List of Experimental Equipment and Materials:

Equipment includes a Teflon-equipped stainless-steel autoclave, silica column for chromatography, vortex mixers, molds for composites, and various characterization instruments (AFM, TEM, XPS, FT-IR, NMR, UV-vis, PL spectrophotometer). Materials include phenols, oxidants, solvents (ethanol, methanol, dichloromethane, DMF), epoxy resin (CYD-128), curing agent (D230), and UV-LED chips (Led World, 365 nm, 1 W).

4：Experimental Procedures and Operational Workflow:

Dissolve phenol and oxidant in ethanol, heat in autoclave at 180°C for 4 hours, cool, purify via column chromatography, collect emissive parts. For composites, mix CDs with epoxy and curing agent, cure at 100°C for 4 hours. For LEDs, coat mixture on UV-LED chips and cure.

5：Data Analysis Methods:

Use AFM and TEM for morphology, XPS for composition, FT-IR and NMR for chemical structure, UV-vis for absorption, PL spectra for emission and quantum yields, and transient decay curves for lifetime analysis. Statistical fitting (e.g., exponential functions) is applied to decay data.