1：Experimental Design and Method Selection:

The study uses a sol-gel approach to create TiO2/PES nanocomposite nanofibers, involving electrospinning and hydrothermal treatment for in situ formation of TiO2 nanoparticles. Methods include morphological, chemical, thermomechanical characterizations, and MB degradation tests under UV irradiation.

2：Sample Selection and Data Sources:

Samples include neat PES nanofibers and TiO2/PES nanocomposite nanofibers with 5 and 8 wt.% TiO2. Data are sourced from laboratory experiments on MB removal efficiency and material properties.

3：Data are sourced from laboratory experiments on MB removal efficiency and material properties. List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Equipment includes SEM (LEO 1550VP Gemini), TEM (Tecnai G2 F20), ATR-FTIR spectrometer (Bruker Equinox55), contact angle analyzer (Kruess DSA 100), XRD (XRD3000TT), DSC (Netzsch DSC 204 Phoenix), TGA (Netzsch 209 TG), DMA (RSA II), tensile machine (Zwick/Roell Z020-20KN), UV lamp (Labino 35W), and UV-Vis spectrophotometer (Lambda 900). Materials include PES (Ultrason E6020P), DMAc, TFA, TBT, MB, and others from suppliers like BASF, Merck, Aldrich, and Sigma-Aldrich.

4：0). Materials include PES (Ultrason E6020P), DMAc, TFA, TBT, MB, and others from suppliers like BASF, Merck, Aldrich, and Sigma-Aldrich. Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: Synthesis involves preparing PES solution, hydrolyzing TBT, mixing, electrospinning, hydrothermal treatment, and annealing. Characterizations involve SEM, TEM, ATR-FTIR, contact angle, XRD, DSC, TGA, DMA, tensile tests. MB degradation tests involve immersing NFs in MB solutions, UV irradiation, sampling, and UV-Vis analysis.

5：Data Analysis Methods:

Data are analyzed using first- and second-order kinetic models for MB removal, with rate constants and R2 values calculated. Statistical analysis includes linear regression for kinetic fitting.