1：Experimental Design and Method Selection:

The study involved the synthesis of sphere-like AgCl by stirring in the presence of sodium oleate and loading it on the surface of reduced graphene oxide (rGO) to form sphere-like AgCl/ rGO composite. The photocatalytic activity was evaluated under simulated and natural sunlight irradiation.

2：Sample Selection and Data Sources:

Tetracycline (TC) was used as the model pollutant. The photocatalytic degradation efficiency was monitored using a UV visible spectrophotometer.

3：List of Experimental Equipment and Materials:

Equipment included a Shimadzu XRD-6000 X-ray diffractometer, JEM-2010 field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), Hitachi U-3010 UV–vis spectrophotometer, F-4500 FL luminescence spectrophotometer, Kratos Axis Ultra system for XPS, Fourier infrared spectrometer (EDUINOX55, Bruker, Germany), LabRAM HR Evolution Raman spectrometer. Materials included potassium chloride (KCl), silver nitrate (AgNO3), sodium oleate (C17H33CO2Na), hexyl alcohol (C6H14O), ethanol (C2H5OH), aminopropyltrimethoxysilane (APTMS), tetracycline (TC).

4：Experimental Procedures and Operational Workflow:

The synthesis involved stirring AgNO3 and sodium oleate in distilled water, adding APTMS, refluxing, and then combining with GO under hydrothermal conditions. Photocatalytic measurements were conducted under simulated and natural sunlight irradiation.

5：Data Analysis Methods:

The photocatalytic activity was analyzed using pseudo-first-order kinetics. The separation and transfer of photo-induced charge carriers were investigated through electrochemical impedance spectroscopy (EIS) and transient photocurrent responses.