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Oval cuboid TiO2 particles with mesoporous structure fabricated by using fluorinated block copolymers as templates with photocatalytic performance.
- Source :
-
Ceramics International . Sep2020, Vol. 46 Issue 13, p21275-21283. 9p. - Publication Year :
- 2020
-
Abstract
- In this work, a poly(ethylene glycol)-b-poly(1H,1H,7H-dodecafluoroheptyl methacrylate) (PEG- b -PDFMA) block copolymer was first synthesized by the reversible addition−fragmentation chain transfer (RAFT) polymerization. Then a novel facile approach was developed to fabricate oval cuboid TiO 2 particles with mesoporous structure by using the PEG- b -PDFMA block copolymer as a template and titanium tetrabutoxide (TBOT) as a precursor, followed by evaporation-induced self-assembly (EISA) process and calcination process. The results show that the PEG- b -PDFMA block copolymer can control the oriented assembly of nanoparticles and act as templates for the formation of a mesopore. It is found that the mass ratio of TBOT/PEG- b -PDFMA and water content in the solution have a significant influence on the morphology of TiO 2 particles. When the mass ratio of TBOT/PEG- b -PDFMA is 0.25/1, oval cuboid TiO 2 particles with mesopores are obtained, which exhibits a high photocatalytic activity for the degradation of methylene blue (MB) dye under UV light irradiation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 46
- Issue :
- 13
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 144830768
- Full Text :
- https://doi.org/10.1016/j.ceramint.2020.05.218