1：Experimental Design and Method Selection:

The study involved synthesizing N-doped and undoped TiO2 and Bi2MoO6 catalysts via chemical coprecipitation and reflux methods, followed by characterization and photocatalytic testing under UV and visible light.

2：Sample Selection and Data Sources:

Catalysts were prepared from Ti(OCH2CH2CH3)4, Bi(NO3)3·5H2O, and (NH4)6Mo7O24 reagents. Methylene blue and lignin were used as model pollutants.

3：List of Experimental Equipment and Materials:

Equipment included SEM (JSM-6400 JEOL Noran Instruments), XRD (Siemens D-5000), FTIR, XPS, UV-visible spectrophotometer (AvaSpec-2048), BET surface area analyzer (Micrometrics Gemini 2060 RIG-100), UV light lamp (365 nm), visible light source (Xe arc lamp, Oriel), and UV-VIS spectrophotometer (Hach Dr/4000u). Materials included ethylene diamine, 1-hexanol, and chemicals for catalyst synthesis.

4：Experimental Procedures and Operational Workflow:

Catalysts were synthesized, characterized, and tested in a batch micro reactor with oxygen flow. Photocatalytic degradation was monitored by sampling at intervals, centrifuging, and measuring absorbance.

5：Data Analysis Methods:

Data were analyzed using techniques like the Scherrer equation for crystallite size, Kubelka-Munk function for band gap, and integration of XPS peaks for elemental quantification.