1：Experimental Design and Method Selection:

The study involved the synthesis of Sb2O3 nanoprism arrays via chemical bath deposition followed by post-sul?dation to form Sb2O3/Sb2S3 nanocomposites. The methodology included optimizing annealing temperature, time, and pressure for the sul?dation process.

2：Sample Selection and Data Sources:

Sb2O3 thin films were prepared on FTO glass slides. The samples were characterized using XRD, SEM, Raman spectroscopy, and UV-vis spectroscopy.

3：List of Experimental Equipment and Materials:

X-ray diffractometer (XRD, Rigaku3014), scanning electron microscope (SEM, FEI Quanta-200), Raman spectrometer (Jobin Yvon LabRAM HR800 Horiba), UV-vis spectrometer, potentiostat (Princeton Applied Research PARSTAT 4000).

4：0). Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: The Sb2O3 films were subjected to post-sul?dation in a static argon and sulfur vapor atmosphere at varying temperatures, times, and pressures. The photoelectrochemical performance was measured in a three-electrode system under simulated sunlight.

5：Data Analysis Methods:

The optical band gap was calculated from UV-vis transmittance spectra using Tauc plots. Electrochemical impedance spectroscopy was used to estimate charge-transfer resistance.