Applied Catalysis2022，Vol.31517.DOI:10.1016/j.apcatb.2022.121532

Solar light induced photocatalytic activation of peroxymonosulfate by ultra-thin Ti3+ self-doped Fe2O3/TiO2 nanoflakes for the degradation of naphthalene

Ismail, Adel A. Dionysiou, Dionysios D. Sayed, Murtaza Ren, Bangxing Ali, Atif Mossad Al-Anazi, Abdulaziz Nadagouda, Mallikarjuna N.
Applied Catalysis2022，Vol.31517.DOI:10.1016/j.apcatb.2022.121532
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  • NSTL
  • Elsevier

Solar light induced photocatalytic activation of peroxymonosulfate by ultra-thin Ti3+ self-doped Fe2O3/TiO2 nanoflakes for the degradation of naphthalene

Ismail, Adel A. 1Dionysiou, Dionysios D. 2Sayed, Murtaza 2Ren, Bangxing 2Ali, Atif Mossad 3Al-Anazi, Abdulaziz 2Nadagouda, Mallikarjuna N.4
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作者信息

  • 1. Kuwait Inst Sci Res KISR
  • 2. Univ Cincinnati
  • 3. King Khalid Univ
  • 4. Wright State Univ
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Abstract

Ti3+ self-doped Fe2O3/TiO2 ultra-thin nanoflakes have been fabricated on Ti-substrate by a facile hydrothermal route. The high solar light harvest by Ti3+ and oxygen vacancies makes Ti3+ self-doped Fe2O3/TiO2 ultra-thin nanoflakes an attractive candidate for photo-activation of peroxymonosulfate (HSO5-) for the degradation of naphthalene (NAP). The Fe2O3/TiO2 ultra-thin nanoflakes synthesized with 0.053 M of FeCl3 (TF3) exhibited high concentrations of Ti(3+ )and oxygen vacancies. TF3/ HSO5- /solar light system showed substantial increases in the degradation of NAP with kapp value of 0.1384 min(-1) compared to 0.057 min(-1) when no HSO5- was added to the system. The proposed system also showed appreciable degradation of NAP in real water samples. Based on scavenger studies, SO4 center dot-, center dot OH, h+ and O-2(center dot-) are generated in the reaction system. Importantly, the toxicity results indicated that the proposed system (TF3/HSO5- /solar light) is an efficient treatment process for detoxifying water contaminated with NAP.

Key words

Charge recombination/Fe2O3/TiO2/Naphthalene/Petroleum wastewater/Photocatalysis/Solar light/Thin films/Ti(3+)states/VISIBLE-LIGHT/001 FACETS/TIO2/WATER/EFFICIENT/BIODEGRADATION/CIPROFLOXACIN/PERFORMANCE/OXIDE

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量33
参考文献量70
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