研究目的
Investigating the photocatalytic behaviors of activated carbon fibers impregnated with N-doped titania for environmental detoxification and wastewater purification.
研究成果
The study successfully demonstrated that ACFs impregnated with N-doped titania exhibit enhanced photocatalytic activity under simulated solar light, attributed to the synergistic effect between the high adsorption capacity of ACF and the visible light photocatalytic activity of N-doped TiO2. The optimal photocatalytic efficiency was achieved with the nanocomposite sonicated four times, suggesting its suitability for practical applications in wastewater purification.
研究不足
The study is limited by the technical constraints of the sonochemical synthesis method and the potential for optimization in the loading amount of N-doped TiO2 on ACFs to enhance photocatalytic efficiency further.
1：Experimental Design and Method Selection:
The study employed the sol–gel method and sonochemical synthesis to prepare N-doped TiO2/ACF nanocomposites.
2：Sample Selection and Data Sources:
Activated carbon fibers (ACFs) and N-doped titania were used as materials.
3：List of Experimental Equipment and Materials:
Equipment included XRD (D2 PHASER, Bruker), HR-SEM (SU 8010, Hitachi), XPS (K-Alpha, Thermo scientific), and a gas adsorption analyzer (BELSORP, BEL). Materials included NH3·H2O, urea, titanium (IV) isopropoxide (TTIP), ethylene glycol, H2SO4, and rhodamine B (RhB).
4：Experimental Procedures and Operational Workflow:
N-doped TiO2 particles were prepared and then combined with ACFs via sonochemical synthesis. The photocatalytic activity was evaluated by degrading RhB under simulated solar light irradiation.
5：Data Analysis Methods:
The photocatalytic activity was analyzed using UV-Vis absorption spectra, and the rate constants were calculated using the Langmuir-Hinshelwood rate equation.
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