研究目的
Investigating the synthesis and characterization of mesoporous Cu and N co-doped TiO2 crystals through solvothermal treatment in different alcohols and evaluating their photocatalytic activity in the oxidation of acetone under visible light.
研究成果
The study demonstrated that solvothermal treatment in ethyl alcohol resulted in Cu and N co-doped TiO2 with enhanced photocatalytic activity due to bandgap narrowing, good dispersibility, smaller pores, and larger specific surface area. This method provides a facile route for synthesizing efficient photocatalysts for environmental applications.
研究不足
The study focused on the solvothermal synthesis in different alcohols and its effect on the photocatalytic activity of Cu and N co-doped TiO2, but did not explore the potential for scaling up the synthesis process or the long-term stability of the photocatalysts under operational conditions.
1：Experimental Design and Method Selection:
The study involved the synthesis of Cu and N co-doped TiO2 crystals via solvothermal treatment in different alcohols (ethyl alcohol, isopropyl alcohol, and n-butyl alcohol) to investigate their photocatalytic properties.
2：Sample Selection and Data Sources:
The samples were characterized using XRD, SEM, UV-vis, and N2 sorption analysis to determine their structural and optical properties.
3：List of Experimental Equipment and Materials:
Equipment included a magnetic stirrer, Teflon stainless steel autoclave, S-4800 electron microscope, NOVA-2000E for BET surface area analysis, and UV-3600 UV-vis apparatus. Materials included tetrabutyl titanate, copper nitrate, urea, and different alcohols.
4：Experimental Procedures and Operational Workflow:
The synthesis involved the preparation of a gel from a mixture of nitric acid, alcohol, water, copper nitrate, and urea, which was then dried to form xerogel. The xerogel was subjected to solvothermal treatment in different alcohols, followed by washing and drying.
5：Data Analysis Methods:
The photocatalytic activity was evaluated by the degradation rate of acetone under visible light, analyzed using a pseudo-first-order model.
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