研究目的
To investigate the effect of the acid type used as catalyst (hydrochloric or acetic acid) on the phase transformation of TiO2 synthesized by microwave assisted sol–gel method.
研究成果
A TiO2 synthesis method was developed by microwave assisted sol–gel technique, producing single anatase phase with acetic acid as catalyst after only 15 min, and a mixture of anatase, rutile, and brookite with hydrochloric acid. The method is efficient, with shorter reaction times compared to conventional sol–gel methods.
研究不足
The study focuses on the effect of acid type on TiO2 phase transformation but does not explore the photocatalytic activity of the synthesized TiO2. The reaction conditions are limited to specific pH values and reaction times.
1：Experimental Design and Method Selection:
The synthesis was performed using microwave-assisted sol–gel technique under acidic conditions with either hydrochloric or acetic acid as catalysts.
2：Sample Selection and Data Sources:
Titanium (IV) isopropoxide was used as the precursor, with 2-propanol as the solvent and distilled water for hydrolysis.
3：List of Experimental Equipment and Materials:
Mars digestion microwave equipment, TGA (DL402 DC), XRD (Philips Mod. X’Pert PW3040), FT-IR (Thermo Scientific Nicolet iS5), SEM (Phillips XL30), EDS, BET specific surface area (NOVA 2000e Quantachrome Instruments), XPS (K-ALPHA spectrophotometer).
4：Experimental Procedures and Operational Workflow:
The sol was prepared, kept at room temperature, dried, calcined, and then characterized.
5：Data Analysis Methods:
XRD for phase identification, FT-IR and XPS for chemical composition, SEM for morphology, and BET for surface area.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
