Details
| Original language | English |
|---|---|
| Pages (from-to) | 117-127 |
| Number of pages | 11 |
| Journal | Optical materials |
| Volume | 88 |
| Early online date | 27 Nov 2018 |
| Publication status | Published - Feb 2019 |
Abstract
Pure anatase, pure brookite, and anatase/brookite heterojunction (ABH) TiO 2 with tunable anatase/brookite ratios were prepared via a facile hydrothermal process using Titanium (III) sulfate, as precursor and different glycine/NaOH ratios, as pH adjusting reagents. The obtained samples were characterized by XRD, Raman, FT-IR, FE-SEM, TEM, EDX, BET surface area, UV-vis-DRS, XPS, and PL. The photocatalytic performance of as-synthesized catalysts was evaluated by photodegradation of ibuprofen under simulated solar light. The photodegradation rate of A/B heterojunction TiO 2 photocatalysts was greater 12.5, 8.5 and 1.6 times than that the pure brookite, pure anatase, and the commercial P-25, respectively. The complete ibuprofen mineralization (100%) was performed under simulated solar light within 5 h using the photocatalyst obtained at pH 10 (i.e. 1:3 glycine/NaOH volume ratio), however, the commercial P-25 is 75%. The optimum sample containing 61.8%A/38.2%B exhibits the best photocatalytic activity due to it has a mesoporous structure, high surface area, and the low PL intensity.
Keywords
- Anatase-brookiteTiO, Ibuprofen, Photocatalyst, Photodegradation, Solar light
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Computer Science(all)
- General Computer Science
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Chemistry(all)
- Spectroscopy
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemistry(all)
- Organic Chemistry
- Chemistry(all)
- Inorganic Chemistry
- Engineering(all)
- Electrical and Electronic Engineering
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In: Optical materials, Vol. 88, 02.2019, p. 117-127.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Highly efficient solar light-assisted TiO2 nanocrystalline for photodegradation of ibuprofen drug
AU - Khedr, T.M.
AU - El-Sheikh, Said M.
AU - Ismail, Adel A.
AU - Bahnemann, D.W.
N1 - Funding Information: This work was supported by Science and Technological Development Fund (STDF), Academy of Scientific Research and Technology, Cairo, Egypt, under Grant No. ID 25503.
PY - 2019/2
Y1 - 2019/2
N2 - Pure anatase, pure brookite, and anatase/brookite heterojunction (ABH) TiO 2 with tunable anatase/brookite ratios were prepared via a facile hydrothermal process using Titanium (III) sulfate, as precursor and different glycine/NaOH ratios, as pH adjusting reagents. The obtained samples were characterized by XRD, Raman, FT-IR, FE-SEM, TEM, EDX, BET surface area, UV-vis-DRS, XPS, and PL. The photocatalytic performance of as-synthesized catalysts was evaluated by photodegradation of ibuprofen under simulated solar light. The photodegradation rate of A/B heterojunction TiO 2 photocatalysts was greater 12.5, 8.5 and 1.6 times than that the pure brookite, pure anatase, and the commercial P-25, respectively. The complete ibuprofen mineralization (100%) was performed under simulated solar light within 5 h using the photocatalyst obtained at pH 10 (i.e. 1:3 glycine/NaOH volume ratio), however, the commercial P-25 is 75%. The optimum sample containing 61.8%A/38.2%B exhibits the best photocatalytic activity due to it has a mesoporous structure, high surface area, and the low PL intensity.
AB - Pure anatase, pure brookite, and anatase/brookite heterojunction (ABH) TiO 2 with tunable anatase/brookite ratios were prepared via a facile hydrothermal process using Titanium (III) sulfate, as precursor and different glycine/NaOH ratios, as pH adjusting reagents. The obtained samples were characterized by XRD, Raman, FT-IR, FE-SEM, TEM, EDX, BET surface area, UV-vis-DRS, XPS, and PL. The photocatalytic performance of as-synthesized catalysts was evaluated by photodegradation of ibuprofen under simulated solar light. The photodegradation rate of A/B heterojunction TiO 2 photocatalysts was greater 12.5, 8.5 and 1.6 times than that the pure brookite, pure anatase, and the commercial P-25, respectively. The complete ibuprofen mineralization (100%) was performed under simulated solar light within 5 h using the photocatalyst obtained at pH 10 (i.e. 1:3 glycine/NaOH volume ratio), however, the commercial P-25 is 75%. The optimum sample containing 61.8%A/38.2%B exhibits the best photocatalytic activity due to it has a mesoporous structure, high surface area, and the low PL intensity.
KW - Anatase-brookiteTiO
KW - Ibuprofen
KW - Photocatalyst
KW - Photodegradation
KW - Solar light
UR - http://www.scopus.com/inward/record.url?scp=85057153332&partnerID=8YFLogxK
U2 - 10.1016/j.optmat.2018.11.027
DO - 10.1016/j.optmat.2018.11.027
M3 - Article
VL - 88
SP - 117
EP - 127
JO - Optical materials
JF - Optical materials
SN - 0925-3467
ER -