Design and mechanism of photocatalytic oxidation for the removal of air pollutants: a review

Li, Kanglu; Wang, Hong; Li, Jianjun; Dong, Fan

doi:10.1007/s10311-022-01436-7

Cited by 27 publications

(9 citation statements)

References 148 publications

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“…Photocatalysis offers a promising solution for reducing air pollution that surpasses conventional approaches. It is highly effective, produces minimal secondary products, and has the potential for scalability. − …”

Section: Introductionmentioning

confidence: 99%

V₂O₅ Nanorod-Loaded g-C₃N₄ Sheets for Efficient Photocatalytic Removal of NO and Minimal NO₂ Yield under Visible Light

Pham,

Tran,

Cao

2023

Energy Fuels

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Air pollution, stemming from nitrogen oxides, severely threatens human health and our environment. Although significant progress has been made with g-C 3 N 4 -based photocatalytic materials, an effective strategy to suppress the high generation of toxic NO 2 and rapid recombination of photogenerated electrons and holes remains limited. Here, we show a V 2 O 5 nanorod-loaded g-C 3 N 4 sheet nanocomposite photocatalyst prepared through a straightforward and cost-effective mechanical mixing approach. Our proposed nanocomposite photocatalysts excel at eliminating NO under visible light exposure while generating a strikingly low level of NO 2 . This impressive performance is attributed to the widened band gap of g-C 3 N 4 and the amplified optical properties achieved by pairing with photoactive V 2 O 5 . We also shed light on the underlying photocatalytic mechanism and pinpoint key influencing factors. With excellent availability and recyclability, this V 2 O 5 nanorodloaded g-C 3 N 4 sheet nanocomposite photocatalyst offers substantial practical applicability, promising a brighter future in the fight against air pollution and creating a cleaner, healthier environment.

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Section: Introductionmentioning

confidence: 99%

V₂O₅ Nanorod-Loaded g-C₃N₄ Sheets for Efficient Photocatalytic Removal of NO and Minimal NO₂ Yield under Visible Light

Pham,

Tran,

Cao

2023

Energy Fuels

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“…. Chemical methods include combustion, 10 thermal catalytic oxidation, 11 photocatalytic oxidation 12 and non‐thermal plasma oxidation 13 . Biological methods generally involve biofiltration 14 .…”

Section: Introductionmentioning

confidence: 99%

Absorption performance and mechanism of volatile organic compounds by phosphonium ionic liquids with different anions

Kang,

Lu,

Zhu

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDThe emission of volatile organic compounds (VOCs) seriously harms the environment and human health. The prevention and control of VOCs pollution is a major challenge in the research field. Aiming at VOCs pollution treatment using green solvents, the absorptions of trichloromethane by synthesized tributyl(propyl)phosphonium bis(trifluoromethylsulfonyl)imide ([P4443][Tf2N]), tributyl(propyl)phosphonium tetrafluoroborate ([P4443][BF4]), tributyl(propyl)phosphonium trifluoroacetic acid ([P4443][CF3COO]) and xylene by trioctyl(propyl)phosphonium bis(trifluoromethylsulfonyl)imide ([P8883][Tf2N]) and trioctyl(propyl)phosphonium tetrafluoroborate ([P8883][BF4]) were experimentally measured. The mechanism of trichloromethane and xylene being absorbed by PILs with different anions was further discussed through simulation calculation.RESULTSThe phosphonium‐based ionic liquids (PILs) process excellent absorption capacity, such as [P4443][CF3COO] with the static saturation absorbing capacity up to 2.843 g/g for trichloromethane. PILs have a certain selective absorption ability for xylene, which has the highest absorption for o‐xylene reaching 1.462 g/g. The absorption energy data also prove that [CF3COO]− anion preferentially interacts with trichloromethane. Combine with the most stable structures of VOCs absorbed by PILs, the results of the Mulliken charge and frontier molecular orbitals indicate that PILs anions play a major role in chlorinated alkanes, and form hydrogen bonds with them. In addition, the cation can form C‐H…π bond interaction with xylene.CONCLUSIONThe experimental and calculated results showed that PILs is a promising adsorbent for trichloromethane and xylene. It provides reference for PILs designed to deal with VOCs in the future.This article is protected by copyright. All rights reserved.

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“…There are three main factors affecting the catalytic performance of photocatalytic oxidation: light absorption, charge carrier separation and transfer, and active site construction. 23 Based on these factors, various modication methods were conducted on TiO 2 -based materials, [24][25][26][27] Bi-based materials, [28][29][30] g-C 3 N 4 -based materials, 31,32 and perovskite-type materials. 33 Modication methods include but are not limited to metal/non-metal doping, defects, heterojunctions, and sensitization.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic NO_x removal and recovery: progress, challenges and future perspectives

Xue,

Li,

Chen

et al. 2024

Chem. Sci.

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Design and mechanism of photocatalytic oxidation for the removal of air pollutants: a review

Cited by 27 publications

References 148 publications

V₂O₅ Nanorod-Loaded g-C₃N₄ Sheets for Efficient Photocatalytic Removal of NO and Minimal NO₂ Yield under Visible Light

V₂O₅ Nanorod-Loaded g-C₃N₄ Sheets for Efficient Photocatalytic Removal of NO and Minimal NO₂ Yield under Visible Light

Absorption performance and mechanism of volatile organic compounds by phosphonium ionic liquids with different anions

Photocatalytic NO_x removal and recovery: progress, challenges and future perspectives

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Design and mechanism of photocatalytic oxidation for the removal of air pollutants: a review

Cited by 27 publications

References 148 publications

V2O5 Nanorod-Loaded g-C3N4 Sheets for Efficient Photocatalytic Removal of NO and Minimal NO2 Yield under Visible Light

V2O5 Nanorod-Loaded g-C3N4 Sheets for Efficient Photocatalytic Removal of NO and Minimal NO2 Yield under Visible Light

Absorption performance and mechanism of volatile organic compounds by phosphonium ionic liquids with different anions

Photocatalytic NOx removal and recovery: progress, challenges and future perspectives

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V₂O₅ Nanorod-Loaded g-C₃N₄ Sheets for Efficient Photocatalytic Removal of NO and Minimal NO₂ Yield under Visible Light

V₂O₅ Nanorod-Loaded g-C₃N₄ Sheets for Efficient Photocatalytic Removal of NO and Minimal NO₂ Yield under Visible Light

Photocatalytic NO_x removal and recovery: progress, challenges and future perspectives