DBD plasma assisted synthesis of MO@Fe/Ce-MOFs with rich oxygen defects as efficient photocatalysts for nitrogen fixation

Huang, Liang; Kong, Xiaowen; Chang, KangLu; Yu, Zhixin; Tao, Xumei; Tang, Tao; Xu, Yan

doi:10.1016/j.jece.2023.109836

Cited by 7 publications

(2 citation statements)

References 40 publications

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“…These defects in photocatalytic hybrid materials might be point defects, volume defects, or the terminations of line defects and planar defects, similar to the surface defects 44 . Defect‐engineered photocatalysts have been widely used in various photocatalytic applications such as organic pollutants' degradation, 56,57 pharmaceutical degradation, 58,59 CO 2 reduction, 60,61 H 2 evolution, 62,63 N 2 reduction, 64,65 etc. which directly focus on environmental remediation and sustainability, providing a large scope of development of defect engineering in materials.…”

Section: Defects: Basic Understanding and Characterizationsmentioning

confidence: 99%

Recent progress in defect‐engineered metal oxides for photocatalytic environmental remediation

Sharma,

Sajwan,

Gouda

et al. 2024

Photochem & Photobiology

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Rapid industrial advancement over the last few decades has led to an alarming increase in pollution levels in the ecosystem. Among the primary pollutants, harmful organic dyes and pharmaceutical drugs are directly released by industries into the water bodies which serves as a major cause of environmental deterioration. This warns of a severe need to find some sustainable strategies to overcome these increasing levels of water pollution and eliminate the pollutants before being exposed to the environment. Photocatalysis is a well‐established strategy in the field of pollutant degradation and various metal oxides have been proven to exhibit excellent physicochemical properties which makes them a potential candidate for environmental remediation. Further, with the aim of rapid industrialization of photocatalytic pollutant degradation technology, constant efforts have been made to increase the photocatalytic activity of various metal oxides. One such strategy is the introduction of defects into the lattice of the parent catalyst through doping or vacancy which plays a major role in enhancing the catalytic activity and achieving excellent degradation rates. This review provides a comprehensive analysis of defects and their role in altering the photocatalytic activity of the material. Various defect‐rich metal oxides like binary oxides, perovskite oxides, and spinel oxides have been summarized for their application in pollutant degradation. Finally, a summary of existing research, followed by the existing challenges along with the potential countermeasures has been provided to pave a path for the future studies and industrialization of this promising field.

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Section: Defects: Basic Understanding and Characterizationsmentioning

confidence: 99%

Recent progress in defect‐engineered metal oxides for photocatalytic environmental remediation

Sharma,

Sajwan,

Gouda

et al. 2024

Photochem & Photobiology

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“…The stable structure formed by linking the tetracarboxylic acid to the metal cluster and the presence of N@N in the ligand is crucial to the sustainability of the photocatalytic reaction. Huang et al [137] greatly promoted the photocatalytic nitrogen fixation reaction using oxygen-deficient MO@Fe/Ce-MOFs synthesized via dielectric barrier discharge (DBD) plasma. Their work provided a detailed description of the critical role played by oxygen defects in nitrogen fixation reactions (Figure 10a,b).…”

Section: No X Removal and Nitrogen Fixationmentioning

confidence: 99%

Application of Fe-MOFs in Photodegradation and Removal of Air and Water Pollutants: A Review

Cai,

Peng,

Jiang

et al. 2023

Molecules

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Photocatalytic technology has received increasing attention in recent years. A pivotal facet of photocatalytic technology lies in the development of photocatalysts. Porous metal–organic framework (MOF) materials, distinguished by their unique properties and structural characteristics, have emerged as a focal point of research in the field, finding widespread application in the photo-treatment and conversion of various substances. Fe-based MOFs have attained particular prominence. This review explores recent advances in the photocatalytic degradation of aqueous and gaseous substances. Furthermore, it delves into the interaction between the active sites of Fe-MOFs and pollutants, offering deeper insights into their mechanism of action. Fe-MOFs, as photocatalysts, predominantly facilitate pollutant removal through redox processes, interaction with acid sites, the formation of complexes with composite metal elements, binding to unsaturated metal ligands (CUSs), and hydrogen bonding to modulate their respiratory behavior. This review also highlights the focal points of future research, elucidating the challenges and opportunities that lie ahead in harnessing the characteristics and advantages of Fe-MOF composite catalysts. In essence, this review provides a comprehensive summary of research progress on Fe-MOF-based catalysts, aiming to serve as a guiding reference for other catalytic processes.

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Oxygen vacancy and Z-scheme heterojunction cooperate to promote visible light nitrogen photofixation

Kong,

Chang,

Tao

et al. 2023

Chemical Engineering Journal

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DBD plasma assisted synthesis of MO@Fe/Ce-MOFs with rich oxygen defects as efficient photocatalysts for nitrogen fixation

Cited by 7 publications

References 40 publications

Recent progress in defect‐engineered metal oxides for photocatalytic environmental remediation

Recent progress in defect‐engineered metal oxides for photocatalytic environmental remediation

Application of Fe-MOFs in Photodegradation and Removal of Air and Water Pollutants: A Review

Oxygen vacancy and Z-scheme heterojunction cooperate to promote visible light nitrogen photofixation

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