Solar light-responsive Ag/CdS/TNTs (TiO2 nanotubes) photocatalysts for enhanced CO2 photoreduction and hydrogen evolution

Song, Xiaojie; Wang, Xiufang; Dong, Wen‐Kui; Qu, Qishu; Wang, Haichen; Yang, Fan

doi:10.1016/j.inoche.2022.110228

Cited by 9 publications

(2 citation statements)

References 32 publications

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“…Isotope labeling experiments (Figures d and S9b) further reveal that the CO was obtained from the CO 2 reduction. After comparison, the CO evolution rate over CdS-100 °C is relatively higher than that of other CdS-based semiconductor photocatalysts with experiment conditions as close as possible to this study ,− (Figure e).…”

Section: Resultssupporting

confidence: 73%

Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO₂

Liang,

Wang,

Zhang

et al. 2024

ACS Catal.

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The key to photocatalysis lies in the efficient separation and migration of photogenerated carriers to the surface for participation in the reaction. However, the recombination of electrons and holes is a major hindrance that reduces the photocatalysis activity. Herein, we developed a method to introduce lattice strain by regulating the crystallinity of the material, thus resulting in an intensive polarization internal electric field, which can promote the separation process of electrons and holes and improve the efficiency of photocatalysis. The degree of strain can be controlled by the solvothermal temperature. Compared with CdS-160 °C, CdS-100 °C with a larger lattice strain degree and internal electric field contributed to a 7-fold enhanced photocatalytic CO evolution from CO 2 ; in addition, the CO/H 2 ratio was also increased by 4 times. This study reports the important effects of lattice strain and internal electric field on photogenerated carrier separation and migration, providing valuable insights for designing efficient photocatalysts.

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Section: Resultssupporting

confidence: 73%

Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO₂

Liang,

Wang,

Zhang

et al. 2024

ACS Catal.

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“…The potential for improving the activity of several semiconductor photocatalysts has been extensively studied using Ag, Au, Pt, and Pd nanoclusters. Currently, numerous metal/semiconductor heterostructures, such as Au-Ag/TiO 2 , [15][16][17][18] Ni-Au/CdS, [19] Ag/CdS/TNTs, [20] Ag-CdS@Pr-TiO 2 , [21] and Na 2 Ti 3 O 7 /Ag/CdS, [22] have been investigated to achieve the improved photocatalytic activity. However, the fabrication processes are costive and the contact area in-between semiconductor and metal is rather limited.…”

Section: Introductionmentioning

confidence: 99%

Facile Solution‐Processed Semiconductor/Metal Hybrid Nanoporous Materials; their Highly Photoredox Catalytic Power

Mustaqeem,

Naikoo,

Ahmad

et al. 2023

Adv Materials Technologies

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Designing a photoredox material with highly efficient organic pollutant degradation ability and cost effectiveness is challenging. Conventional photoredox materials have inherent drawbacks, including high cost, low photon‐to‐electron conversion rates, and low effective surface area. Herein, an alternative nanoporous semiconductor/metal hybrid (CuO‐Ag) photoredox catalysis material with all solution processes is developed to circumvent these shortcomings. The obtained results evidently indicate that the loading of Ag onto the CuO nanoporous material leads to improving the Brunauer–Emmett–Teller (BET) specific surface area (48.369 m2 g−1) with pore size (36.436 nm) and pore's volume (0.301 cm3 g−1) of CuO‐Ag nanoporsity. The improved semiconductor/metal hybrid surface area and porosity significantly enhance the photocatalytic efficiency (i.e., ≈99% degradation of RhB and 4‐NP), owing to the synergy effect. Additionally, the decoration of metal nanostructure enables to enhance photo‐absorption and the semiconductor/metal heterojunction is useful to enhance photo‐excited electron and hole charge carriers separation. Such structure‐designed CuO‐Ag nanoporous materials maintain high photostability during long light irradiation conditions. The photocatalytic efficiency is better than all published reports. This strategy using hybrid semiconductor/metal nanoporous material with high surface area and greater porosity improved activity significantly offers a facile guideline for targeting photoredox catalysis applications.

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Shuttling of photo excitons in 1D TiO2-based nanostructures for photocatalytic H2 production and environmental applications

Lakshmi,

Nagaveni,

Subba Rao

et al. 2024

Nanotechnology for Hydrogen Production and Storage

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Solar light-responsive Ag/CdS/TNTs (TiO2 nanotubes) photocatalysts for enhanced CO2 photoreduction and hydrogen evolution

Cited by 9 publications

References 32 publications

Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO₂

Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO₂

Facile Solution‐Processed Semiconductor/Metal Hybrid Nanoporous Materials; their Highly Photoredox Catalytic Power

Shuttling of photo excitons in 1D TiO2-based nanostructures for photocatalytic H2 production and environmental applications

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Solar light-responsive Ag/CdS/TNTs (TiO2 nanotubes) photocatalysts for enhanced CO2 photoreduction and hydrogen evolution

Cited by 9 publications

References 32 publications

Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO2

Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO2

Facile Solution‐Processed Semiconductor/Metal Hybrid Nanoporous Materials; their Highly Photoredox Catalytic Power

Shuttling of photo excitons in 1D TiO2-based nanostructures for photocatalytic H2 production and environmental applications

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Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO₂

Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO₂