Experience in Scaling-Up of Photo-Thermo-Catalytic Purification of Process Gasses from NOx

Lasek, Janusz; Głód, Krzysztof; Fryza, Rafał; Dobras, Szymon; Chwoła, Tadeusz; Supernok, Krzysztof; Wu, Jeffrey C.S.; Wu, Aiming; Huang, Chao‐Wei

doi:10.3390/en16145344

Cited by 2 publications

(1 citation statement)

References 55 publications

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“…Through these integrated approaches, the catalyst's efficiency and selectivity in catalytic conversion or pollutant removal have progressed to some extent, paving the way for more sustainable and effective environmental remediation strategies. Nevertheless, the photocatalytic removal of NO x continues to predominantly reside within the realm of laboratory-scale research [23,24]. This status quo is narrowed down through rigorous exploration of diverse fundamental aspects and the application of an extensive array of materials design strategies.…”

Section: Introductionmentioning

confidence: 99%

Materials Design and Development of Photocatalytic NOx Removal Technology

Bari,

Islam,

Jeong

2024

Metals

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Nitrogen oxide (NOx) pollutants have a significant impact on both the environment and human health. Photocatalytic NOx removal offers a sustainable and eco-friendly approach to combatting these pollutants by harnessing renewable solar energy. Photocatalysis demonstrates remarkable efficiency in removing NOx at sub-scale levels of parts per billion (ppb). The effectiveness of these catalysts depends on various factors, including solar light utilization efficiency, charge separation performance, reactive species adsorption, and catalytic reaction pathway selectivity. Moreover, achieving high stability and efficient photocatalytic activity necessitates a multifaceted materials design strategy. This strategy encompasses techniques such as ion doping, defects engineering, morphology control, heterojunction construction, and metal decoration on metal- or metal oxide-based photocatalysts. To optimize photocatalytic processes, adjustments to band structures, optimization of surface physiochemical states, and implementation of built-in electric field approaches are imperative. By addressing these challenges, researchers aim to develop efficient and stable photocatalysts, thus contributing to the advancement of environmentally friendly NOx removal technologies. This review highlights recent advancements in photocatalytic NOx removal, with a focus on materials design strategies, intrinsic properties, fundamental developmental aspects, and performance validation. This review also presents research gaps, emphasizing the need to understand the comprehensive mechanistic photocatalytic process, favored conditions for generating desired reactive species, the role of water concentration, temperature effects, inhibiting strategies for photocatalyst-deactivating species, and the formation of toxic NO2.

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Section: Introductionmentioning

confidence: 99%