1：Experimental Design and Method Selection:

The study employs a simple hydrothermal synthesis and ultrasonic chemical loading method to construct the ternary heterogeneous material.

2：Sample Selection and Data Sources:

The samples include pure g-C3N4, MoS2, and their composites with AB.

3：List of Experimental Equipment and Materials:

Instruments include X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FT-IR) spectra, UV–vis diffused reflectance spectra (DRS), photoluminescence (PL) spectra, scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray analyzer (EDX), cyclic voltammetry analysis, and BET surface area measurements.

4：Experimental Procedures and Operational Workflow:

The synthesis involves dissolving thiourea and urea in deionized water, drying, heating, and annealing to obtain g-C3N4 nanosheets. MoS2 nanosheets are prepared by dissolving sodium molybdate and thiourea in deionized water, heating, centrifuging, and drying. The ternary composite is prepared by dissolving g-C3N4 in deionized water, adding MoS2 and AB, sonicating, and drying.

5：Data Analysis Methods:

The photocatalytic performance is evaluated by the degradation rate of methyl blue solution under visible light illumination.