1：Experimental Design and Method Selection:

The study involved preparing a ZrP/AgBr composite through ion exchange and precipitation reactions, followed by characterization using XRD, SEM, and DRS to analyze structure and optical properties. Photocatalytic tests were conducted under visible light irradiation to degrade RhB, with UV-Vis spectroscopy used to monitor degradation kinetics and pathways.

2：Sample Selection and Data Sources:

Nanocrystalline zirconium phosphate was used as the support material. Rhodamine B dye solution (1×10^{-5} M) served as the model pollutant. Data were derived from experimental measurements of absorbance changes over time.

3：List of Experimental Equipment and Materials:

Equipment included an ICP-OES Varian Liberty spectrometer, Philips X'Pert PRO MPD diffractometer, Zeiss LEO 1525 FE SEM, Avantes portable spectrophotometer with integrating sphere and CCD detector, and a UV-Vis spectrometer. Materials involved zirconyl propionate, orthophosphoric acid, propanol, silver acetate, HBr, and Rhodamine B.

4：Experimental Procedures and Operational Workflow:

The composite was synthesized by reacting silver-exchanged ZrP with HBr. Photocatalytic tests involved suspending the catalyst in RhB solution, equilibrating in the dark, irradiating with a halogen lamp (λ ≥ 350 nm), sampling at intervals, centrifuging, and analyzing supernatant UV-Vis spectra to calculate concentrations of RhB and degradation products.

5：Data Analysis Methods:

Data were analyzed using the Scherrer equation for crystalline size, Kubelka-Munk transformation for reflectance spectra, and a system of linear equations based on molar extinction coefficients to quantify de-ethylated and cleaved species concentrations over time.