研究目的
To synthesize 3D hierarchical structure TiO2 via a solvothermal method and evaluate its photocatalytic activity under the condition of methyl orange (MO) simulating wastewater.
研究成果
The study successfully synthesized 3D hierarchical structure TiO2 via a solvothermal method, demonstrating that morphology and structure can be regulated by reaction time. The 3D hierarchical structure TiO2 exhibited superior surface area and excellent photocatalytic activities, making it a promising material for environmental pollution treatment and solar energy conversion.
研究不足
The study focuses on the synthesis and photocatalytic activity of 3D hierarchical structure TiO2 under specific conditions. The potential for optimization in terms of reaction conditions and scalability for industrial applications is not explored.
1：Experimental Design and Method Selection:
The synthesis involved a solvothermal method using butyl titanate as precursor and acetic acid as solvent, with the addition of surfactants (CTAB), urea, and polyethylene glycol to control hydrolysis of titanium source.
2：Sample Selection and Data Sources:
The samples were characterized by XRD, SEM, TEM, XPS, PL, UV-Vis, and N2 adsorption-desorption isotherms.
3：List of Experimental Equipment and Materials:
Equipment included a Bruke AXS D8 Advance multi crystal X ray diffraction, Zeiss Merlin scanning electron microscope (SEM), transmission electron microscopy (JEOL, JEM-2010, Japan), HITACHI UV-3900 spectrophotometer, thermal scientific (Escalab 250 Xi) for XPS, and ASAP2460 fluorescence spectrophotometer for PL spectra. Materials included TBT, urea, acetic acid (HAc), PEG, and cetyltrimethyl ammonium bromide.
4：Experimental Procedures and Operational Workflow:
The synthesis involved adding TBT into HAc with PEG, CTAB, and urea under vigorous stirring, transferring the suspension to an autoclave, heating at 150℃ for different times, and then collecting the product by centrifugation.
5：Data Analysis Methods:
The photocatalytic activity was evaluated by measuring the degradation percent of MO under ultraviolet light irradiation.
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