1：Experimental Design and Method Selection:

The study involved synthesizing resorcinol-formaldehyde (RF) hydrogels via sol-gel method, converting them to polymer aerogels (RFA) by supercritical drying, and carbon aerogels (RFCA) by pyrolysis. TiO2 layers were deposited using atomic layer deposition (ALD) with TiCl4 and H2O precursors at 80°C (amorphous) and 250°C (crystalline). Characterization techniques included N2 adsorption, TG/DTA-MS, Raman spectroscopy, SEM-EDX, TEM, and photocatalytic testing with methyl orange degradation under UV light.

2：Sample Selection and Data Sources:

Samples included RFA, RFCA, and their TiO2 composites. Data were sourced from laboratory synthesis and measurements using specified equipment.

3：List of Experimental Equipment and Materials:

Equipment included Beneq TFS-200-186 ALD reactor, TA Instruments SDT 2960 TG/DTA, JEOL JSM-5500LV SEM, FEI Morgagni 268 TEM, PANanalytical X'Pert Pro MPD XRD, JASCO V-750 UV-Vis spectrophotometer, and others. Materials included resorcinol, formaldehyde, sodium carbonate, TiCl4, H2O, methyl orange dye, etc.

4：Experimental Procedures and Operational Workflow:

RF hydrogel synthesis, supercritical drying for RFA, pyrolysis for RFCA, ALD deposition of TiO2, characterization via various techniques, and photocatalytic activity tests with UV irradiation and absorbance measurements.

5：Data Analysis Methods:

Data were analyzed using BET model for surface area, Raman spectra for crystallinity, EDX for elemental composition, and UV-Vis for dye degradation kinetics.