Details
| Original language | English |
|---|---|
| Article number | 102797 |
| Journal | Journal of Environmental Chemical Engineering |
| Volume | 7 |
| Issue number | 1 |
| Early online date | 19 Nov 2018 |
| Publication status | Published - Feb 2019 |
Abstract
The non-doped and non-metal tri-doped TiO 2 were prepared and used as photocatalysts activated by low-cost and low powered irradiation sources (LED) for the degradation of 4-aminoantipyrine (4-AAP) for the first time. The nano-spindle-like brookite phase with high-quality was hydrothermally synthesized at 200 °C for 20 h, in the absence of glycine. The nano-spherical-like anatase mixed with nano-rod-like brookite TiO 2 were synthesized using different molarities of glycine. The N-C-S tridoped B/A TiO 2 was synthesized by mixing optimum non-doped TiO 2 with thiourea followed by calcination at 450 °C. The findings exhibited that the absorption edges of the obtained TiO 2 shifted from UV to visible region as a result of non-metal tri-doping. The N-C-S tri-doped/TiO 2 was confirmed by XPS analysis. The effect of pH values, the catalyst loadings and 4-AAP concertation were performed for degradation of 4-AAP employing solar and LED irradiation sources (UV-A and visible light). The complete degradation of 4-AAP (pH 3, 0.02 g L -1 ) under solar, UV-A LED, and visible light sources was achieved using N-C-S-tri-doped B/A TiO 2 photocatalyst (0.4 g L -1 ). PL spectra confirmed that tri-doped TiO 2 hetrojunction reduce the e-/h + recombination.
Keywords
- 4-Aminoantipyrine, Brookite/anatase, Non-metal doped TiO, Photodegradation, Solar-visible light
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemical Engineering (miscellaneous)
- Environmental Science(all)
- Waste Management and Disposal
- Environmental Science(all)
- Pollution
- Chemical Engineering(all)
- Process Chemistry and Technology
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In: Journal of Environmental Chemical Engineering, Vol. 7, No. 1, 102797, 02.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Photodegradation of 4-aminoantipyrine over nano-titania heterojunctions using solar and LED irradiation sources
AU - Khedr, Tamer M.
AU - El-Sheikh, Said M.
AU - Ismail, Adel A.
AU - Bahnemann, Detlef
N1 - Funding Information: This work was supported by Science and Technological Development Fund (STDF) , Academy of Scientific Research & Technology, Cairo, Egypt , under Grant No. ID 25503.
PY - 2019/2
Y1 - 2019/2
N2 - The non-doped and non-metal tri-doped TiO 2 were prepared and used as photocatalysts activated by low-cost and low powered irradiation sources (LED) for the degradation of 4-aminoantipyrine (4-AAP) for the first time. The nano-spindle-like brookite phase with high-quality was hydrothermally synthesized at 200 °C for 20 h, in the absence of glycine. The nano-spherical-like anatase mixed with nano-rod-like brookite TiO 2 were synthesized using different molarities of glycine. The N-C-S tridoped B/A TiO 2 was synthesized by mixing optimum non-doped TiO 2 with thiourea followed by calcination at 450 °C. The findings exhibited that the absorption edges of the obtained TiO 2 shifted from UV to visible region as a result of non-metal tri-doping. The N-C-S tri-doped/TiO 2 was confirmed by XPS analysis. The effect of pH values, the catalyst loadings and 4-AAP concertation were performed for degradation of 4-AAP employing solar and LED irradiation sources (UV-A and visible light). The complete degradation of 4-AAP (pH 3, 0.02 g L -1 ) under solar, UV-A LED, and visible light sources was achieved using N-C-S-tri-doped B/A TiO 2 photocatalyst (0.4 g L -1 ). PL spectra confirmed that tri-doped TiO 2 hetrojunction reduce the e-/h + recombination.
AB - The non-doped and non-metal tri-doped TiO 2 were prepared and used as photocatalysts activated by low-cost and low powered irradiation sources (LED) for the degradation of 4-aminoantipyrine (4-AAP) for the first time. The nano-spindle-like brookite phase with high-quality was hydrothermally synthesized at 200 °C for 20 h, in the absence of glycine. The nano-spherical-like anatase mixed with nano-rod-like brookite TiO 2 were synthesized using different molarities of glycine. The N-C-S tridoped B/A TiO 2 was synthesized by mixing optimum non-doped TiO 2 with thiourea followed by calcination at 450 °C. The findings exhibited that the absorption edges of the obtained TiO 2 shifted from UV to visible region as a result of non-metal tri-doping. The N-C-S tri-doped/TiO 2 was confirmed by XPS analysis. The effect of pH values, the catalyst loadings and 4-AAP concertation were performed for degradation of 4-AAP employing solar and LED irradiation sources (UV-A and visible light). The complete degradation of 4-AAP (pH 3, 0.02 g L -1 ) under solar, UV-A LED, and visible light sources was achieved using N-C-S-tri-doped B/A TiO 2 photocatalyst (0.4 g L -1 ). PL spectra confirmed that tri-doped TiO 2 hetrojunction reduce the e-/h + recombination.
KW - 4-Aminoantipyrine
KW - Brookite/anatase
KW - Non-metal doped TiO
KW - Photodegradation
KW - Solar-visible light
UR - http://www.scopus.com/inward/record.url?scp=85059367365&partnerID=8YFLogxK
U2 - 10.1016/j.jece.2018.11.042
DO - 10.1016/j.jece.2018.11.042
M3 - Article
VL - 7
JO - Journal of Environmental Chemical Engineering
JF - Journal of Environmental Chemical Engineering
IS - 1
M1 - 102797
ER -