1：Experimental Design and Method Selection:

The study involved synthesizing Bi2MoO6 nanosheets via hydrothermal method and then converting them to Bi2MoO6 & Bi2S3 heterojunctions through an in situ anion exchange process with sodium sulfide. The design aimed to create core-shell structures for enhanced photocatalytic activity.

2：Sample Selection and Data Sources:

Samples were prepared with varying reaction times (0.5h to 6h) to control Bi2S3 content. Characterization included XRD, SEM, TEM, XPS, BET, UV-vis DRS, PL, EIS, and photocurrent measurements.

3：5h to 6h) to control Bi2S3 content. Characterization included XRD, SEM, TEM, XPS, BET, UV-vis DRS, PL, EIS, and photocurrent measurements. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Chemicals included nitric acid, ammonium hydroxide, bismuth nitrate, sodium molybdate, PVP, sodium sulfide, potassium dichromate, and various dyes. Equipment included autoclaves, centrifuges, XRD diffractometer (Rigaku Ultima IV), FESEM (JSM-7500F), TEM (Tecnai G2 F20 S-TWIN), XPS (ESCALAB 250), BET analyzer (MicrotracBEL BELSORP-max), UV-vis spectrophotometer (Shimadzu UV-vis 2550), PL spectrometer (F97 Pro), electrochemical workstation (CHI 660e), and ICP-AES (Agilent 720).

4：0). Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: Synthesis involved hydrothermal reactions at specific temperatures and times. Photocatalytic tests were conducted under visible light from a 500W Xe lamp with a 420nm cutoff filter. Adsorption and reduction kinetics were monitored using UV-vis spectroscopy.

5：Data Analysis Methods:

Data were analyzed using pseudo-first-order kinetics for reduction rates, BET for surface area, and various spectroscopic and electrochemical techniques for material characterization.