Recent Progress of Perovskite Oxide in Emerging Photocatalysis Landscape: Water Splitting, CO&lt;sub&gt;2&lt;/sub&gt; Reduction, and N&lt;sub&gt;2&lt;/sub&gt; Fixation

王则鉴,; 洪佳佳,; Sue-Faye, Ng; 刘雯,; 黄俊杰,; 陈鹏飞,; Wee-Jun, Ong

doi:10.3866/pku.whxb202011033

Cited by 26 publications

(21 citation statements)

References 158 publications

(207 reference statements)

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“…Photocatalysis is considered a green technology, which reduces our energy reliance on unsustainable fossil fuels and alleviates environmental pollution. Tremendous research interest has focused on several crucial photocatalytic reactions, such as hydrogen production by water splitting, [14][15][16] CO 2 reduction, [17][18][19] CH 4 oxidation, degradation of organic compounds, [20] N 2 photofixation, [21] and H 2 O 2 synthesis. Photocatalytic H 2 O 2 production usually takes place on semiconductors, starting with light absorption and excitation of electrons from the valence band (VB) to the conduction band (CB) of the semiconductor if the energy of photons exceeds the bandgap of the semiconductor.…”

Section: Introductionmentioning

confidence: 99%

Inorganic Metal‐Oxide Photocatalyst for H₂O₂ Production

Wang

Zhang

et al. 2021

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Hydrogen peroxide (H 2 O 2 ) is a mild but versatile oxidizing agent with extensive applications in bleaching, wastewater purification, medical treatment, and chemical synthesis. The state-of-art H 2 O 2 production via anthraquinone oxidation is hardly considered a cost-efficient and environment-friendly process because it requires high energy input and generates hazardous organic wastes. Photocatalytic H 2 O 2 production is a green, sustainable, and inexpensive process which only needs water and gaseous dioxygen as the raw materials and sunlight as the power source. Inorganic metal oxide semiconductors are good candidates for photocatalytic H 2 O 2 production due to their abundance in nature, biocompatibility, exceptional stability, and low cost. Progress has been made to enhance the photocatalytic activity toward H 2 O 2 production, however, H 2 O 2 photosynthesis is still in the laboratory research phase since the productivity is far from satisfaction. To inspire innovative ideas for boosting the H 2 O 2 yield in photocatalysis, the most well-studied metal oxide photocatalysts are selected and the modification strategies to improve their activity are listed. The mechanisms for H 2 O 2 production over modified photocatalysts are discussed to highlight the facilitating role of the modification methods. Besides, methods for the quantification of H 2 O 2 and associated radical intermediates are provided to guide future studies in this field.

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Section: Introductionmentioning

confidence: 99%

Inorganic Metal‐Oxide Photocatalyst for H₂O₂ Production

Wang

Zhang

et al. 2021

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“…The selectivity of the reaction depends on many factors, such as the type of photocatalyst, its crystallinity, introduced modifying elements, type of carrier, and others. [6] …”

Section: Introductionmentioning

confidence: 99%

“…The selectivity of the reaction depends on many factors, such as the type of photocatalyst, its crystallinity, introduced modifying elements, type of carrier, and others. [6] In the publication of Soltani et al, [7] selective photocatalysts for hydrogen production with reduction of CO 2 were developed. Obtaining high selectivity to hydrogen is controversial because the hydrogen obtained from the decomposition of water is used immediately to reduce carbon dioxide, and it is challenging to implement in the photocatalytic reduction of CO 2 .…”

Section: Introductionmentioning

confidence: 99%

New Insight on Carbon Dioxide‐Mediated Hydrogen Production**

et al. 2022

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A new approach to hydrogen production from water is described. This simple method is based on carbon dioxide‐mediated water decomposition under UV radiation. The water contained dissolved sodium hydroxide, and the solution was saturated with gaseous carbon dioxide. During saturation, the pH decreased from about 11.5 to 7–8. The formed bicarbonate and carbonate ions acted as scavengers for hydroxyl radicals, preventing the recombination of hydroxyl and hydrogen radicals and prioritizing hydrogen gas formation. In the presented method, not yet reported in the literature, hydrogen production is combined with carbon dioxide. For the best system with alkaline water (0.2 m NaOH) saturated with CO 2 under UV‐C, the hydrogen production amounted to 0.6 μmol h −1 during 24 h of radiation.

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“…However, the CO 2 -reduction reaction (CO 2 RR) still suffers from low faradaic efficiency, low conversion efficiency, sluggish kinetics of the primary side reaction of hydrogen-evolution reaction, and high overpotential, which have greatly hindered its further practical applications. Based on this, transition-metal (TM)-based catalysts have been applied to improve the CO 2 RR performance [ 17 ], as well as waste-originated biorenewables and other catalysts [ 18 , 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Bimetallic Dimer-Embedded TiO2(101) Surface on CO2 Reduction: The First-Principles Calculation

Shang

Zhao

et al. 2022

Materials

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The first-principles calculation was used to explore the effect of a bimetallic dimer-embedded anatase TiO2(101) surface on CO2 reduction behaviors. For the dimer-embedded anatase TiO2(101) surface, Zn-Cu, Zn-Pt, and Zn-Pd dimer interstitials could stably stay on the TiO2(101) surface with a binding energy of about −2.36 eV, as well as the electronic states’ results. Meanwhile, the results of adsorption energy, structure parameters, and electronic states indicated that CO2 was first physically and then chemically adsorbed much more stably on these three kinds of dimer-embedded TiO2(101) substrate with a small barrier energy of 0.03 eV, 0.23 eV, and 0.12 eV. Regarding the reduction process, the highest-energy barriers of the CO2 molecule on the Zn-Cu dimer-embedded TiO2(101) substrate was 0.31 eV, which largely benefited the CO2-reduction reaction (CO2RR) activity and was much lower than that of the other two kinds of Zn-Pt and Cu-Pt dimer-TiO2 systems. Simultaneously, the products CO* and *O* of CO2 reduction were firmly adsorbed on the dimer-embedded TiO2(101) surface. Our results indicated that a non-noble Zn-Cu dimer might be a more suitable and economical choice, which might theoretically promote the designation of high CO2RR performance on TiO2 catalysts.

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Recent Progress of Perovskite Oxide in Emerging Photocatalysis Landscape: Water Splitting, CO<sub>2</sub> Reduction, and N<sub>2</sub> Fixation

Cited by 26 publications

References 158 publications

Inorganic Metal‐Oxide Photocatalyst for H₂O₂ Production

Inorganic Metal‐Oxide Photocatalyst for H₂O₂ Production

New Insight on Carbon Dioxide‐Mediated Hydrogen Production**

Effect of Bimetallic Dimer-Embedded TiO2(101) Surface on CO2 Reduction: The First-Principles Calculation

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Recent Progress of Perovskite Oxide in Emerging Photocatalysis Landscape: Water Splitting, CO<sub>2</sub> Reduction, and N<sub>2</sub> Fixation

Cited by 26 publications

References 158 publications

Inorganic Metal‐Oxide Photocatalyst for H2O2 Production

Inorganic Metal‐Oxide Photocatalyst for H2O2 Production

New Insight on Carbon Dioxide‐Mediated Hydrogen Production**

Effect of Bimetallic Dimer-Embedded TiO2(101) Surface on CO2 Reduction: The First-Principles Calculation

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Product

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Inorganic Metal‐Oxide Photocatalyst for H₂O₂ Production

Inorganic Metal‐Oxide Photocatalyst for H₂O₂ Production