1：Experimental Design and Method Selection:

The study involved the aqueous synthesis of glutathione-capped CuInS2/ZnS quantum dots-graphene oxide nanocomposite. The methodology included the use of UV–Vis spectroscopy, PL spectroscopy, HR-TEM, FT-IR, XRD, and Raman scattering for characterization.

2：Sample Selection and Data Sources:

The samples were synthesized using chemicals purchased from Sigma Aldrich, including zinc acetate, copper chloride, indium chloride, sodium citrate, thiourea, L-glutathione, sodium sulphide, sodium hydroxide, and ethanol.

3：List of Experimental Equipment and Materials:

Equipment used included a Perkin Elmer UV–Vis Lambda 25 spectrometer, RF-6000 Shimadzu PL spectrometer, Spectrum two UATR FTIR spectrometer, and Transmission electron microscopy.

4：Experimental Procedures and Operational Workflow:

The synthesis involved the preparation of graphene oxide, followed by the in-situ aqueous synthesis of CIS/ZnS-GO nanocomposite. The detection of TNP was carried out by mixing the nanocomposite solution with different concentrations of TNP and recording the fluorescence spectra.

5：Data Analysis Methods:

The fluorescence quenching mechanism was analyzed based on the decrease in PL intensity upon addition of TNP, indicating charge transfer from the nanocomposite to TNP.