1：Experimental Design and Method Selection:

The study involved the synthesis of IO/CdS CSNCs using a sequential one-pot method with TDP as a bridge, followed by characterization using XRD, TEM, UV-vis, and PL spectroscopy.

2：Sample Selection and Data Sources:

Samples included IO/CdS CSNCs, CdS QDs, and IONPs, with data acquired through various spectroscopic and microscopic techniques.

3：List of Experimental Equipment and Materials:

Equipment included a Philips X-ray diffractometer, Shimadzu UV-1650 PC UV/Vis spectrophotometer, Perkin-Elmer LS-55 and Edinburgh FLS-920 fluorescence spectrometers, and a scanning transmission microscope. Materials included FeCl3·6H2O, FeCl2·4H2O, ammonia solution, TDP, Cd(II), and H2S gas.

4：Experimental Procedures and Operational Workflow:

The synthesis involved the preparation of IONPs, followed by the synthesis of IO/CdS CSNCs. Photocatalytic and antibacterial activities were evaluated under solar light.

5：Data Analysis Methods:

Data were analyzed using Langmuir-Hinshelwood kinetics model for photocatalytic degradation and various spectroscopic methods for antibacterial activity assessment.