Tungsten (VI) chloride and 1-octadecanol were purchased from Macklin (Shanghai, China). Oleic acid and 1-octadecene were obtained from Sigma Aldrich. Titanium (IV) ethoxide was purchased from Alfa Aesar (UK). DSPE-PEG5000 was purchased from Shanghai Yudu Biotechnology (China). Acetone, hexane, and chloroform were purchased from Yonghua Chemical Technology (Jiangsu, China). Iopromide injection was purchased from Bayer Pharma AG (Germany). The 4T1 cells were provided by the Shanghai Center for Systems Biomedicine (Shanghai, China). A cell counting kit-8 (CCK-8) kit was obtained from BBI Solution (UK). Female BALB/c nude mice of 5~6 weeks old were obtained from Slac Laboratory Animal Center (Shanghai, China).
Titanium 4 ethoxide
Manufactured by Thermo Fisher Scientific
Sourced in United Kingdom, United States
Titanium (IV) ethoxide is a chemical compound used as a precursor in various applications, including thin-film deposition, catalysis, and organic synthesis. It is a clear, colorless liquid with a characteristic odor. The compound has the chemical formula Ti(OC2H5)4 and is commonly used in the production of titanium-based materials and coatings.
Automatically generated - may contain errors
3 protocols using titanium 4 ethoxide
1
Synthesis and Characterization of Nanomaterials
2
Synthesis of Ti-Containing Ferrierite Zeolites
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Zeolite precursor materials with titanium in the zeolite framework (Ti-PREFER) were synthesized by mixing of 4-amino-2,2,6,6-tetramethylpiperidine (R, Fluka, Germany) used as a structure directing agent, titanium(iv ) ethoxide (98%, Alfa Aesar, Haverhill, MA, USA) as titanium source, silica Aerosil 200 (Evonik Industries AG, Essen, Germany) as silicon source, NH4F (98%, Sigma-Aldrich, St. Louis, MO, USA), HF (49.8%, Sigma-Aldrich, St. Louis, MO, USA) and distilled water. For the synthesis of the zeolitic samples the following reactants with the suitable ratios were used: 1SiO2 : xTiO2 : 1R : 1.5NH4F : 0.5HF : 10H2O, where x = 0.04, 0.02 and 0.01 was for the samples with the Si/Ti intended molar ratios of 25, 50 and 100, respectively. The resulting slurries were placed in autoclaves at 135 °C for 11 days. The solid product was filtrated, washed with distilled water, and dried overnight at 60 °C. The obtained zeolite precursors are denoted as Ti-PREFER-25, Ti-PREFER-50, and Ti-PREFER-100, respectively for the samples with the intended molar Si/Ti ratio of 25, 50, and 100. To produce three dimensional (3D) ferrierite zeolites, Ti-PREFER-25, Ti-PREFER-50 and Ti-PREFER-100 precursors were calcined at 600 °C for 6 hours resulting in the samples denoted as Ti-FER-25, Ti-FER-50 and Ti-FER-100.
3
Synthesis of Al-PREFER and Ti-PREFER Zeolites
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Al-PREFER and Ti-PREFER, the zeolite precursors with aluminum or titanium incorporated in the zeolite framework, were synthesized using fumed silica Aerosil 200 (Evonik Industries AG, Essen, Germany) as silicon source, hydroxy(oxo)alumane Catapal B (Sasol, Johannesburg, South Africa), as aluminum source and titanium (IV) ethoxide (98%, Alfa Aesar, Haverhill, MA, USA) as titanium source. 4-amino-2,2,6,6-tetramethylpiperidine (R, Fluka, München, Germany) was used as structure directing agent. Moreover, NH4F (98%, Sigma-Aldrich, St. Louis, MO, USA), HF (49.8%, Sigma-Aldrich, St. Louis, MO, USA) and distilled water were used for the zeolite synthesis. Molar ratio of components was 1 SiO2: 0.01 Al2O3 (or 0.02 TiO2): 1 R: 1.5 NH4F: 0.5 HF: 10 H2O, resulting in Si/Al or Si/Ti molar ratio of 50. The obtained slurries were agitated in an autoclave at 135 °C for 3 days in the case of Al-PREFER and for 11 days in the case Ti-PREFER. The final steps were filtration, washing with distilled water and drying at 60 °C for 24 h.
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