Synthesis and tuning of ordering and crystallinity of mesoporous titanium dioxide film |
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Authors: | S Agarwala GW Ho |
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Affiliation: | 1. Construction Technologies Institute, National Research Council of Italy (ITC-CNR), Via Lombardia 49, I-20098 San Giuliano Milanese, MI, Italy;2. Institute of Science and Technology for Ceramics, National Research Council of Italy (ISTEC-CNR), Via Granarolo 64, I-48018 Faenza, RA, Italy |
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Abstract: | Synthesis of well-organized and highly crystalline mesoporous titania (TiO2) film is demonstrated using triblock copolymer (Pluronic P123) as a structure directing template, through the evaporation induced self-assembly (EISA) process. The issue of thermal and structural stability of a mesoporous TiO2 film was addressed via optimization of annealing temperature and time. An anatase phase, high crystallinity TiO2 film with ordered pores was obtained at 430 °C after annealing for 15 min. The synthesized film was crack free with TiO2 nanoparticle size of 10–15 nm, quasi-hexagonal pore diameter in the range of 8–10 nm and film thickness of ~ 150 nm. |
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