Bismuth-rich Bi12O17Cl2 nanorods engineered with oxygen vacancy defects for enhanced photocatalytic nitrogen fixation

Kok, Steven Hao Wan; Lee, Jiale; Chong, Wei‐Kean; Ng, Boon‐Junn; Kong, Xin Ying; Ong, Wee‐Jun; Chai, Siang‐Piao; Tan, Lling‐Lling

doi:10.1016/j.jallcom.2023.170015

Cited by 15 publications

(5 citation statements)

References 75 publications

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“…Comparison of photocatalytic N2 reduction activity on Bi-based photocatalysts. References [22,24,36,43,[52][53][54][55][56][57][58][59][60][61][62][63][64][65] are cited in the Supplementary Materials.…”

Section: Supplementary Materialsmentioning

confidence: 99%

“…Theoretical studies by Norskov and coworkers reported the low HER activity of Bi due to the highest hydrogen binding energy (~0.75 eV) [34]. Moreover, it is found that N 2 preferably adsorbs at Bi sites with an end-on bound structure, which suggests favorable N 2 adsorption and activation at Bi sites [35,36]. Recently, many investigations have proved that Bi/semiconductors possess obviously enhanced photocatalytic activity in the NRR [37,38].…”

Section: Introductionmentioning

confidence: 99%

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Schottky Junctions with Bi@Bi2MoO6 Core-Shell Photocatalysts toward High-Efficiency Solar N2-to-Ammonnia Conversion in Aqueous Phase

Wang,

Wei,

et al. 2024

Nanomaterials

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The photocatalytic nitrogen reduction reaction (NRR) in aqueous solution is a green and sustainable strategy for ammonia production. Nonetheless, the efficiency of the process still has a wide gap compared to that of the Haber–Bosch one due to the difficulty of N2 activation and the quick recombination of photo-generated carriers. Herein, a core-shell Bi@Bi2MoO6 microsphere through constructing Schottky junctions has been explored as a robust photocatalyst toward N2 reduction to NH3. Metal Bi self-reduced onto Bi2MoO6 not only spurs the photo-generated electron and hole separation owing to the Schottky junction at the interface of Bi and Bi2MoO6 but also promotes N2 adsorption and activation at Bi active sites synchronously. As a result, the yield of the photocatalytic N2-to-ammonia conversion reaches up to 173.40 μmol g−1 on core-shell Bi@Bi2MoO6 photocatalysts, as much as two times of that of bare Bi2MoO6. This work provides a new design for the decarbonization of the nitrogen reduction reaction by the utilization of renewable energy sources.

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Section: Supplementary Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Schottky Junctions with Bi@Bi2MoO6 Core-Shell Photocatalysts toward High-Efficiency Solar N2-to-Ammonnia Conversion in Aqueous Phase

Wang,

Wei,

et al. 2024

Nanomaterials

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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: Basic Understanding and Types Of Defectsmentioning

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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“…Photocatalytic N 2 fixation, employing semiconductor photocatalysts that harness sunlight as the energy source while utilizing N 2 and H 2 O as reactants, stands out as a sustainable approach for NH 3 production. 7–10 Nonetheless, because of the poor N 2 adsorption–activation and carrier separation in semiconductor photocatalysts, achieving efficient photocatalytic conversion of N 2 to NH 3 remains a scientific challenge. 11–13…”

Section: Introductionmentioning

confidence: 99%

“…Photocatalytic N 2 xation, employing semiconductor photocatalysts that harness sunlight as the energy source while utilizing N 2 and H 2 O as reactants, stands out as a sustainable approach for NH 3 production. [7][8][9][10] Nonetheless, because of the poor N 2 adsorption-activation and carrier separation in semiconductor photocatalysts, achieving efficient photocatalytic conversion of N 2 to NH 3 remains a scientic challenge. [11][12][13] Efficient N 2 adsorption-activation and good light absorption of photocatalysts are the fundamental prerequisites for realizing the efficient photoreduction of N 2 to produce NH 3 .…”

Section: Introductionmentioning

confidence: 99%

Construction of a BiVO₄/V_S-MoS₂ S-scheme heterojunction for efficient photocatalytic nitrogen fixation

Luo,

Liu,

Zhang

et al. 2024

Nanoscale Adv.

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Bismuth-rich Bi12O17Cl2 nanorods engineered with oxygen vacancy defects for enhanced photocatalytic nitrogen fixation

Cited by 15 publications

References 75 publications

Schottky Junctions with Bi@Bi2MoO6 Core-Shell Photocatalysts toward High-Efficiency Solar N2-to-Ammonnia Conversion in Aqueous Phase

Schottky Junctions with Bi@Bi2MoO6 Core-Shell Photocatalysts toward High-Efficiency Solar N2-to-Ammonnia Conversion in Aqueous Phase

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

Construction of a BiVO₄/V_S-MoS₂ S-scheme heterojunction for efficient photocatalytic nitrogen fixation

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Bismuth-rich Bi12O17Cl2 nanorods engineered with oxygen vacancy defects for enhanced photocatalytic nitrogen fixation

Cited by 15 publications

References 75 publications

Schottky Junctions with Bi@Bi2MoO6 Core-Shell Photocatalysts toward High-Efficiency Solar N2-to-Ammonnia Conversion in Aqueous Phase

Schottky Junctions with Bi@Bi2MoO6 Core-Shell Photocatalysts toward High-Efficiency Solar N2-to-Ammonnia Conversion in Aqueous Phase

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

Construction of a BiVO4/VS-MoS2 S-scheme heterojunction for efficient photocatalytic nitrogen fixation

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Construction of a BiVO₄/V_S-MoS₂ S-scheme heterojunction for efficient photocatalytic nitrogen fixation