Details
| Original language | English |
|---|---|
| Article number | 113037 |
| Journal | Journal of Photochemistry and Photobiology A: Chemistry |
| Volume | 407 |
| Early online date | 12 Nov 2020 |
| Publication status | Published - 15 Feb 2021 |
Abstract
In this contribution, C/N-TiO2 photocatalyst has been synthesized employing the combustion approach of NH2-MIL-125(Ti) at 400 °C in air for H2 production through simulated solar light compared with either NH2-MIL-125(Ti) or commercial P-25. TEM images show well defined shape TiO2 nanocrystalline with 10 nm particles size. The obtained C/N-TiO2 photocatalyst exhibited large surface area 1066 m2 g−1 with high pore volume ∼0.537 cm3 g−1 and pores diameter ∼1.3 nm. The yield of H2 evolution over C-N/TiO2 photocatalyst (339 H2 mmol g−1) exhibited significantly compared with NH2-MIL-125(Ti) (5.7 H2 mmol g−1) and P-25 TiO2 (144.8 H2 mmol g−1) photocatalyst. The yield of H2 evolution over C/N-doped TiO2 was boosted by 60 and 2.35 times after 6 h over NH2-MIL-125(Ti) and P-25 TiO2 photocatalyst. The H2 evolution rate of C/N-TiO2 photocatalyst reached 33.3 mmol g-1 h-1 and it is greater 2.17 and 27.5 times than P-25 TiO2 (15.3 mmol g-1 h−1) and NH2-MIL-125(Ti) (1.212 mmol g-1 h−1). The enhancement of photocatalytic efficiency over C/N-TiO2 photocatalyst was referred to its great mesoporosity, hierarchical structure and large surface area. The recycled C/N-TiO2 photocatalyst showed significant durability through five consecutive runs for 30 h illumination. The C/N-TiO2, synthesized from pyrolysis of NH2-MIL-125(Ti), is proposed as an outstanding material for H2 evolution and potential photocatalysis application under simulated solar Light.
Keywords
- C/N-TiO, H evolution, NH-MIL-125(Ti), Pyrolysis, Simulated solar light
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Chemical Engineering(all)
- General Chemical Engineering
- Physics and Astronomy(all)
- General Physics and Astronomy
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 407, 113037, 15.02.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Pyrolysis conversion of metal organic frameworks to form uniform codoped C/N-Titania photocatalyst for H2 production through simulated solar light
AU - Ismail, Adel A.
AU - Al-Hajji, L. A.
AU - Alsaidi, M.
AU - Nunes, B. N.
AU - Bahnemann, D. W.
N1 - Funding Information: Kuwait Institute for Scientific Research (KISR) is gratefully acknowledged for the instrumental facilities. A. A. Ismail acknowledges the Alexander von Humboldt (AvH) Foundation for granting him a renewed research fellowship.
PY - 2021/2/15
Y1 - 2021/2/15
N2 - In this contribution, C/N-TiO2 photocatalyst has been synthesized employing the combustion approach of NH2-MIL-125(Ti) at 400 °C in air for H2 production through simulated solar light compared with either NH2-MIL-125(Ti) or commercial P-25. TEM images show well defined shape TiO2 nanocrystalline with 10 nm particles size. The obtained C/N-TiO2 photocatalyst exhibited large surface area 1066 m2 g−1 with high pore volume ∼0.537 cm3 g−1 and pores diameter ∼1.3 nm. The yield of H2 evolution over C-N/TiO2 photocatalyst (339 H2 mmol g−1) exhibited significantly compared with NH2-MIL-125(Ti) (5.7 H2 mmol g−1) and P-25 TiO2 (144.8 H2 mmol g−1) photocatalyst. The yield of H2 evolution over C/N-doped TiO2 was boosted by 60 and 2.35 times after 6 h over NH2-MIL-125(Ti) and P-25 TiO2 photocatalyst. The H2 evolution rate of C/N-TiO2 photocatalyst reached 33.3 mmol g-1 h-1 and it is greater 2.17 and 27.5 times than P-25 TiO2 (15.3 mmol g-1 h−1) and NH2-MIL-125(Ti) (1.212 mmol g-1 h−1). The enhancement of photocatalytic efficiency over C/N-TiO2 photocatalyst was referred to its great mesoporosity, hierarchical structure and large surface area. The recycled C/N-TiO2 photocatalyst showed significant durability through five consecutive runs for 30 h illumination. The C/N-TiO2, synthesized from pyrolysis of NH2-MIL-125(Ti), is proposed as an outstanding material for H2 evolution and potential photocatalysis application under simulated solar Light.
AB - In this contribution, C/N-TiO2 photocatalyst has been synthesized employing the combustion approach of NH2-MIL-125(Ti) at 400 °C in air for H2 production through simulated solar light compared with either NH2-MIL-125(Ti) or commercial P-25. TEM images show well defined shape TiO2 nanocrystalline with 10 nm particles size. The obtained C/N-TiO2 photocatalyst exhibited large surface area 1066 m2 g−1 with high pore volume ∼0.537 cm3 g−1 and pores diameter ∼1.3 nm. The yield of H2 evolution over C-N/TiO2 photocatalyst (339 H2 mmol g−1) exhibited significantly compared with NH2-MIL-125(Ti) (5.7 H2 mmol g−1) and P-25 TiO2 (144.8 H2 mmol g−1) photocatalyst. The yield of H2 evolution over C/N-doped TiO2 was boosted by 60 and 2.35 times after 6 h over NH2-MIL-125(Ti) and P-25 TiO2 photocatalyst. The H2 evolution rate of C/N-TiO2 photocatalyst reached 33.3 mmol g-1 h-1 and it is greater 2.17 and 27.5 times than P-25 TiO2 (15.3 mmol g-1 h−1) and NH2-MIL-125(Ti) (1.212 mmol g-1 h−1). The enhancement of photocatalytic efficiency over C/N-TiO2 photocatalyst was referred to its great mesoporosity, hierarchical structure and large surface area. The recycled C/N-TiO2 photocatalyst showed significant durability through five consecutive runs for 30 h illumination. The C/N-TiO2, synthesized from pyrolysis of NH2-MIL-125(Ti), is proposed as an outstanding material for H2 evolution and potential photocatalysis application under simulated solar Light.
KW - C/N-TiO
KW - H evolution
KW - NH-MIL-125(Ti)
KW - Pyrolysis
KW - Simulated solar light
UR - http://www.scopus.com/inward/record.url?scp=85097048845&partnerID=8YFLogxK
U2 - 10.1016/j.jphotochem.2020.113037
DO - 10.1016/j.jphotochem.2020.113037
M3 - Article
AN - SCOPUS:85097048845
VL - 407
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
SN - 1010-6030
M1 - 113037
ER -