In situ construction of elemental phosphorus nanorod-modified TiO2 photocatalysts for efficient visible-light-driven H2 generation

Li, Shuang; Ng, Yun Hau; Zhu, Ruixue; Lv, Sijie; Wu, Chunxiao; Liu, Yuxi; Jing, Lin; Deng, Jiguang; Dai, Hongxing

doi:10.1016/j.apcatb.2021.120412

Cited by 39 publications

(19 citation statements)

References 44 publications

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“…In a long-range test of 850 s, the 0.39Pt 1 /CuO-CeO 2 electrode exhibited much higher and stable instantaneous current responses to each illumination on or off recycles. 42 The EIS Nyquist plots of the CuO-CeO 2 and 0.39Pt 1 /CuO-CeO 2 samples are illustrated in Figure S21. The smaller semicircles of the 0.39Pt 1 /CuO-CeO 2 sample further indicate that a strong chemical bond was formed between single-atom Pt and CuO-CeO 2 .…”

Section: Resultsmentioning

confidence: 99%

Photothermal Synergistic Effect of Pt₁/CuO-CeO₂ Single-Atom Catalysts Significantly Improving Toluene Removal

Feng

Dai

Wang

et al. 2022

Environ. Sci. Technol.

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Photothermal synergistic catalytic oxidation of toluene over single-atom Pt catalysts was investigated. Compared with the conventional thermocatalytic oxidation in the dark, toluene conversion and CO 2 yield over 0.39Pt 1 /CuO-CeO 2 under simulated solar irradiation (λ = 320−2500 nm, optical power density = 200 mW cm −2 ) at 180 °C could be increased about 48%. An amount of CuO was added to CeO 2 to disperse single-atom Pt with a maximal Pt loading of 0.83 wt %. The synergistic effect between photo-and thermocatalysis is very important for the development of new pollutant treatment technology with high efficiency and low energy consumption. Both light and heat played an important role in the present photothermal synergistic catalytic oxidation. 0.39Pt 1 /CuO-CeO 2 showed good redox performance and excellent optical properties and utilized the full-spectrum solar energy. Light illumination induced the generation of reactive oxygen species ( • OH and • O 2 − ), which accelerated the transformation of intermediates, promoted the release of active sites on the catalyst surface, and improved the oxidation reaction.

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Section: Resultsmentioning

confidence: 99%

Photothermal Synergistic Effect of Pt₁/CuO-CeO₂ Single-Atom Catalysts Significantly Improving Toluene Removal

Feng

Dai

Wang

et al. 2022

Environ. Sci. Technol.

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“…The band gap of Hittorf's RP was estimated to be 1.7 eV. 20 Compared with amorphous RP (1.8 eV), 126 the hydrogen production rate of crystalline RP was doubled under visible light irradiation and methanol as a sacrificial reagent. In the absence of methanol, H 2 and O 2 were produced stably under illumination, and the molar ratio of H 2 to O 2 was close to 2 : 1 (Fig.…”

Section: H 2 Production By Photocatalytic Water Splittingmentioning

confidence: 99%

Elemental phosphorus for recent sustainable processes: rules and strategies in preparation and applications

Duan

Liu

et al. 2022

Green Chem.

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“…However, doping provides limited room for carrier lifetime improvement, since excess P in bulk TiO 2 develops recombination centers that damage the photocatalytic activity. , Therefore, establishing synergistic heterojunctions between TiO 2 and elemental phosphorus has been a blooming topic recently. As a family of p-type semiconductors with narrow band gaps, elemental phosphorus, especially the less flammable and commercially available red phosphorus (RP), could absorb light with long wavelengths and transport photoexcited charge carriers in time, effectively amending the disadvantages of TiO 2 . Nevertheless, the formation of efficient bonds between TiO 2 and RP appears to be challenging.…”

Section: Introductionmentioning

confidence: 99%

“…These complex syntheses escalate operating costs and are likely to be impractical for large-scale applications, hindering the broad utilization of TiO 2 /RP composite catalysts. To the best of our knowledge, these composites until now have only been employed in limited chemical reactions such as the hydrogen evolution reaction , and pollution photodegradation . Green, energy-saving, and industry-ready synthesis methods are the premise for their application in CO 2 RR to guarantee net CO 2 consumption.…”

Section: Introductionmentioning

confidence: 99%

Green and Facile Fabrication of Metal Oxide/Red Phosphorus Composite Catalysts for CO₂Photoreduction

Batur

Bian

et al. 2022

ACS Sustainable Chem. Eng.

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Photocatalyzed CO 2 reduction (CO 2 RR) transfers CO 2 into valuable products using renewable energy, attracting widespread attention. Composite catalysts fabricated with TiO 2 and red phosphorus (RP) might exhibit competitive advantages, but effective interphase binding is difficult to forge. The composites therefore require complex and energy-consuming syntheses, severely hindering their application in CO 2 RR. In this work, TiO 2 /RP composites with hyperefficient interphase contact, which outperform various elaborately designed catalysts, are directly prepared from commercially available materials via a green and facile hydrothermal approach. The low heating temperature and sole solvent of water diminish the energy input for synthesis and imply a potential opportunity to propel CO 2 RR with industrial waste heat and cooling water. Experimental and computational analyses reveal that hydrothermal synthesis reduces the interfering oxidized species on the exterior surface of RP, facilitating the relatively less favored interphase contact between TiO 2 and nonoxidized RP. Photoelectron transfer and catalytic performance of the composites are hence drastically enhanced. Further improvement of activity is feasible by slightly elevating the heating temperature, time, or solution acidity. Attributing to the universal applicability of this green approach, different metal oxide/RP composites (e.g., WO 3 /RP) are similarly prepared, consistently boosting the reaction rate multiple times.

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In situ construction of elemental phosphorus nanorod-modified TiO2 photocatalysts for efficient visible-light-driven H2 generation

Cited by 39 publications

References 44 publications

Photothermal Synergistic Effect of Pt₁/CuO-CeO₂ Single-Atom Catalysts Significantly Improving Toluene Removal

Photothermal Synergistic Effect of Pt₁/CuO-CeO₂ Single-Atom Catalysts Significantly Improving Toluene Removal

Elemental phosphorus for recent sustainable processes: rules and strategies in preparation and applications

Green and Facile Fabrication of Metal Oxide/Red Phosphorus Composite Catalysts for CO₂Photoreduction

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In situ construction of elemental phosphorus nanorod-modified TiO2 photocatalysts for efficient visible-light-driven H2 generation

Cited by 39 publications

References 44 publications

Photothermal Synergistic Effect of Pt1/CuO-CeO2 Single-Atom Catalysts Significantly Improving Toluene Removal

Photothermal Synergistic Effect of Pt1/CuO-CeO2 Single-Atom Catalysts Significantly Improving Toluene Removal

Elemental phosphorus for recent sustainable processes: rules and strategies in preparation and applications

Green and Facile Fabrication of Metal Oxide/Red Phosphorus Composite Catalysts for CO2Photoreduction

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Product

Resources

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Photothermal Synergistic Effect of Pt₁/CuO-CeO₂ Single-Atom Catalysts Significantly Improving Toluene Removal

Photothermal Synergistic Effect of Pt₁/CuO-CeO₂ Single-Atom Catalysts Significantly Improving Toluene Removal

Green and Facile Fabrication of Metal Oxide/Red Phosphorus Composite Catalysts for CO₂Photoreduction