Photocatalytic Conversion of Carbon Dioxide and Nitrogen Dioxide: Current Developments, Challenges, and Perspectives

Ojha, Niwesh; Pant, Kamal Kishore; Coy, Emerson

doi:10.1021/acs.iecr.3c03426

Ind. Eng. Chem. Res.

2023

DOI: 10.1021/acs.iecr.3c03426

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Photocatalytic Conversion of Carbon Dioxide and Nitrogen Dioxide: Current Developments, Challenges, and Perspectives

Niwesh Ojha,

Kamal Kishore Pant,

Emerson Coy

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2024

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Cited by 2 publications

References 155 publications

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Photocatalytic Synergy Between α‐Bi₂O₃ Nanosphere and Spindle MIL‐88A for Gas‐Phase CO₂ Reduction

Ojha,

Kishore Pant

2024

ChemSusChem

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Visible light‐active photocatalysts play a crucial role in gas‐phase photocatalytic CO2 reduction, offering significant potential for sustainable energy conversion. Herein, we present the synthesis of spindle‐shaped Iron (Fe)‐based metal‐organic framework (MOF) MIL‐88A, coupled with distinct α‐Bi2O3 nanospheres. The α‐Bi2O3/MIL88A heterostructure is formed by interacting opposite surface charges, enhancing visible‐light absorption and efficient interfacial charge‐carrier separation. Such low‐cost photocatalysts have a 1.75 eV band gap and demonstrate enhanced efficacy in converting CO2 to CO, CH4, and H2 in water without using any sacrificial agents or noble metals compared to pristine MIL88A. In addition, in situ Electron Spin Resonance (ESR) analyses revealed that these unique catalysts combination promoted enhanced interfacial charge dynamics, creating efficient trapping sites for photogenerated carriers. Further, in‐situ Diffuse Reflectance Infrared Fourier Transfer Spectroscopy (DRIFTS) investigation elucidates the plausible reaction mechanism and provides an effective methodology for catalyst screening for CO2 photoreduction. This study offers an effective approach for synthesizing the earth‐abundant heterostructure from metal oxide and low‐cost MOFs, enhancing photocatalytic activity for sustainable carbon dioxide conversion into invaluable chemicals.

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Photocatalytic Synergy Between α‐Bi₂O₃ Nanosphere and Spindle MIL‐88A for Gas‐Phase CO₂ Reduction

Ojha,

Kishore Pant

2024

ChemSusChem

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Fundamentals of Flexoelectricity, Materials and Emerging Opportunities Toward Strain‐Driven Nanocatalysts

Kołodziej,

Ojha,

Budziałowski

et al. 2024

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Flexoelectricity, an intrinsic property observed in materials under nonuniform deformation, entails a coupling between polarization and strain gradients. Recent catalyst advancements have reignited interest in flexoelectricity, particularly at the nanoscale, where pronounced strain gradients promote robust flexoelectric effects. This paper comprehensively examines flexoelectricity, encompassing methodologies for precise measurement, elucidating its distinctions from related phenomena, and exploring its potential applications in augmenting catalytic properties. So far, the greatest potentials are based on lead strontium titanate (PST) and other metallic titanates such as titania (TiO2), strontium titanate (STO), barium strontium titanate (BST) sulfates (MoS2, ZnS) and halide perovskites (with archetype XPbI3). This review explores the promise of flexoelectric properties in addressing material and photocatalytic challenges, such as charge carrier recombination and ineffective surface charge separation. Additionally, it sheds light on the synergy with emerging paradigms like photo‐flexo catalysis and synergistic flexo‐piezo catalysis, specifically focusing on selective chemical transformations like green hydrogen production. Current limitations related to the usage of photoflexoelectricity for photocatalysis are mostly the stability of the used substance (susceptibility to photodegradation) or the voltage values, which represent the inferior potential for specific practical applications. This work underscores the indispensable role of flexoelectricity in catalysis and its capacity to steer future research and technological advancement.

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Photocatalytic Conversion of Carbon Dioxide and Nitrogen Dioxide: Current Developments, Challenges, and Perspectives

Cited by 2 publications

References 155 publications

Photocatalytic Synergy Between α‐Bi₂O₃ Nanosphere and Spindle MIL‐88A for Gas‐Phase CO₂ Reduction

Photocatalytic Synergy Between α‐Bi₂O₃ Nanosphere and Spindle MIL‐88A for Gas‐Phase CO₂ Reduction

Fundamentals of Flexoelectricity, Materials and Emerging Opportunities Toward Strain‐Driven Nanocatalysts

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Product

Resources

About

Photocatalytic Conversion of Carbon Dioxide and Nitrogen Dioxide: Current Developments, Challenges, and Perspectives

Cited by 2 publications

References 155 publications

Photocatalytic Synergy Between α‐Bi2O3 Nanosphere and Spindle MIL‐88A for Gas‐Phase CO2 Reduction

Photocatalytic Synergy Between α‐Bi2O3 Nanosphere and Spindle MIL‐88A for Gas‐Phase CO2 Reduction

Fundamentals of Flexoelectricity, Materials and Emerging Opportunities Toward Strain‐Driven Nanocatalysts

Contact Info

Product

Resources

About

Photocatalytic Synergy Between α‐Bi₂O₃ Nanosphere and Spindle MIL‐88A for Gas‐Phase CO₂ Reduction

Photocatalytic Synergy Between α‐Bi₂O₃ Nanosphere and Spindle MIL‐88A for Gas‐Phase CO₂ Reduction