Synthesizing and Evaluating the Photocatalytic and Antibacterial Ability of TiO2/SiO2 Nanocomposite for Silicate Coating
| Autor: | Quang-Dat Nguyen, Thanh-Huyen Bui Thi, Minh-Nguyet Tran Thi, Manh-Cuong Le, Thanh-Ha Do Thi, Thu-Huong Le |
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| Rok vydání: | 2021 |
| Předmět: |
Nanocomposite
Materials science nanocomposite Photocatalytic reaction General Chemistry engineering.material photocatalytic Silicate antibacterial Chemistry chemistry.chemical_compound Coating chemistry engineering Photocatalysis sol-gel Absorption (chemistry) QD1-999 silicate coating Nuclear chemistry Sol-gel |
| Zdroj: | Frontiers in Chemistry, Vol 9 (2021) |
| ISSN: | 2296-2646 |
| Popis: | The TiO2/SiO2 nanocomposite has been synthesized by a sol-gel method and investigated the effect of the SiO2 content (0, 5, 10, 15, 20, and 50%) on the rutile-to-anatase phase transition of TiO2 NPs. In order to increase the photocatalytic efficiency of the nanocomposite and decrease the price of material, the TiO2/SiO2 Nc with content SiO2 of 15% sample is chosen for preparing silicate coating. The efficiency of photocatalytic MB and antibacterial ability in the air of W silicate coating (adding TiO2/SiO2 Nc (15%)) achieve almost 100% for 60 h and 94.35% for 3 h, respectively. While the efficiency of photocatalytic MB and antibacterial ability of WO silicate coating (adding commercial TiO2/SiO2) is about 25–30% for 60 h and 6.02% for 3 h, respectively. The presence of TiO2/SiO2 Nc (15%) with a larger surface area in W silicate coating can provide increased centers for absorption, photocatalytic reaction, and the contact between sample and bacteria lead to enhance the photocatalytic and antibacterial ability of W silicate coating. |
| Databáze: | OpenAIRE |
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