1：Experimental Design and Method Selection:

The study involved doping bismuth silicate glass (60SiO2-40Bi2O3) with BiVO4 at concentrations of 0.25, 0.5, and 1.0 mol%. BiVO4 powder was synthesized via solid-state reaction of Bi2O3 and V2O5, calcined at 800°C for 8 hours. Glass samples were prepared by melting mixed powders in an alumina crucible at 1200°C for 1 hour, followed by annealing at 400°C for 12 minutes and natural cooling. Optical properties were analyzed using UV-VIS spectrometry in transmission mode, and color was interpreted using the CIELab system with OceanView software. Photocatalytic activity was tested by decoloration of methylene blue (MB) under visible light exposure for up to 5 hours, with concentration changes monitored by UV-VIS spectrometry.

2：25, 5, and 0 mol%. BiVO4 powder was synthesized via solid-state reaction of Bi2O3 and V2O5, calcined at 800°C for 8 hours. Glass samples were prepared by melting mixed powders in an alumina crucible at 1200°C for 1 hour, followed by annealing at 400°C for 12 minutes and natural cooling. Optical properties were analyzed using UV-VIS spectrometry in transmission mode, and color was interpreted using the CIELab system with OceanView software. Photocatalytic activity was tested by decoloration of methylene blue (MB) under visible light exposure for up to 5 hours, with concentration changes monitored by UV-VIS spectrometry. Sample Selection and Data Sources:

2. Sample Selection and Data Sources: Bismuth silicate glass samples doped with 0, 0.25, 0.5, and 1.0 mol% BiVO4 were used. BiVO4 powder was characterized by X-ray diffraction (XRD) to confirm monoclinic phase purity (JCPDS no.14-0688).

3：25, 5, and 0 mol% BiVO4 were used. BiVO4 powder was characterized by X-ray diffraction (XRD) to confirm monoclinic phase purity (JCPDS no.14-0688). List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Equipment included an electric furnace for melting and annealing, alumina crucible, UV-VIS spectrometer (Ocean Optics USB4000, USA), fiber optic spectrometer, OceanView software for CIELab analysis, and X-ray diffractometer (Rigaku Miniflex II, Japan). Materials included SiO2, Bi2O3, V2O5, and methylene blue.

4：Experimental Procedures and Operational Workflow:

BiVO4 powder synthesis via solid-state reaction and calcination. Glass preparation by mixing powders, melting at 1200°C, annealing, and polishing. Optical measurements using UV-VIS spectrometry. Photocatalytic testing with MB degradation under visible light, with periodic concentration measurements.

5：Data Analysis Methods:

Optical spectra analyzed for transmission, absorption, and band gap energy using Tauc plots. CIELab values used for color analysis. Photocatalytic activity assessed by MB concentration changes, with reaction rates analyzed using pseudo-first order kinetics.