Synergistic effect stemming from vertically anchored seamless 2D MoSe2 nanosheets on 1D NiTiO3 nanofibers toward CO2 photoreduction

Khan, Haritham; Charles, Hazina; Lee, Caroline Sunyong

doi:10.1016/j.jcou.2022.102058

Cited by 9 publications

(2 citation statements)

References 41 publications

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“…The NiTiO 3 NF/MoSe 2 (nanofiber/nanosheet) heterojunction prepared by combining an electrospinning technique and a solvothermal approach belongs to this type. [207] Compared with the pristine NiTiO 3 NF and MoSe 2 , the CO yield over the optimal sample was greatly improved by 6.6 and 7.7 times, respectively. The combined effects of NiTiO 3 NF and MoSe 2 semiconductors, which enhanced light absorption, increased the specific surface area, and reduced charge recombination across the interface, was credited with the improved photocatalytic activity.…”

Section: Formation Of Heterojunction With Semiconductormentioning

confidence: 92%

Research Progress on Photocatalytic CO₂ Reduction Based on Perovskite Oxides

Wang

Yuan

et al. 2023

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Photocatalytic CO2 reduction to valuable fuels is a promising way to alleviate anthropogenic CO2 emissions and energy crises. Perovskite oxides have attracted widespread attention as photocatalysts for CO2 reduction by virtue of their high catalytic activity, compositional flexibility, bandgap adjustability, and good stability. In this review, the basic theory of photocatalysis and the mechanism of CO2 reduction over perovskite oxide are first introduced. Then, perovskite oxides' structures, properties, and preparations are presented. In detail, the research progress on perovskite oxides for photocatalytic CO2 reduction is discussed from five aspects: as a photocatalyst in its own right, metal cation doping at A and B sites of perovskite oxides, anion doping at O sites of perovskite oxides and oxygen vacancies, loading cocatalyst on perovskite oxides, and constructing heterojunction with other semiconductors. Finally, the development prospects of perovskite oxides for photocatalytic CO2 reduction are put forward. This article should serve as a useful guide for creating perovskite oxide‐based photocatalysts that are more effective and reasonable.

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Section: Formation Of Heterojunction With Semiconductormentioning

confidence: 92%

Research Progress on Photocatalytic CO₂ Reduction Based on Perovskite Oxides

Wang

Yuan

et al. 2023

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“…Researchers have dedicated significant efforts to address this limitation and enhance its performance. One approach involves coupling NTO with another semiconductor such as MoSe 2 , MoS 2 , and g-C 3 N 4 or carbon materials such as reduced graphene oxide or carbon quantum dots. − These composite systems have demonstrated improved photocatalytic activity owing to enhanced light absorption in the visible region and accelerated separation and migration of photogenerated electron–hole pairs. However, no study has reported incorporation of metal doping and noble metal cocatalysts into NTO for photocatalytic CO 2 RR, to the best of our knowledge.…”

Section: Introductionmentioning

confidence: 99%

Accelerating Charge Separation and CO₂ Photoreduction in Aqueous Phase under Visible Light with Ru Nanoparticles Loaded on Ga-Doped NiTiO₃ in a Batch Photoreactor

Kumar Sahu,

Yadav,

Banerjee

et al. 2024

ACS Appl. Mater. Interfaces

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Titanate perovskite (ATiO 3 ) semiconductors show prospects of being active photocatalysts in the conversion of CO 2 to chemical fuels such as methanol (CH 3 OH) in the aqueous phase. Some of the challenges in using ATiO 3 are limited lightharvesting capability, rapid bulk charge recombination, and the low density of catalytic sites participating in CO 2 reduction. To address these challenges, Ga-doped NiTiO 3 (GNTO) photocatalysts in which Ga ions substitute for Ti ions in the crystal lattice to form electron trap states and oxygen vacancies have been synthesized in this work. The synthesized GNTO was then loaded with Ru nanoparticles to accelerate charge separation and enable excellent CO 2 photoreduction activity under visible light. CO 2 photoreduction was conducted in a batch photoreactor charged with a 0.1 M NaHCO 3 aqueous solution at room temperature and a 3.5 bar pressure using a 1.0 wt % Ru-GNTO photocatalyst to yield methanol at a rate of 84.45 μmol g −1 h −1 . A small amount of methane was produced as a side product at 21.35 μmol g −1 h −1 , which is also a fuel molecule. We attribute this high catalytic activity toward CO 2 photoreduction to a synergistic combination of our novel heterostructured 1.0 wt % Ru-GNTO photocatalyst and the implementation of a pressurized photoreactor. This work demonstrates an effective strategy for metal doping with active nanospecies functionality to improve the performance of ATiO 3 photocatalysts in valorizing CO 2 to solar fuels.

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Photocatalyst Engineering for Water-Based CO2 Reduction Under Visible Light Irradiation to Enhance CO Selectivity: A Review of Recent Advances

Charles

Pawar

Khan

et al. 2023

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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Synergistic effect stemming from vertically anchored seamless 2D MoSe2 nanosheets on 1D NiTiO3 nanofibers toward CO2 photoreduction

Cited by 9 publications

References 41 publications

Research Progress on Photocatalytic CO₂ Reduction Based on Perovskite Oxides

Research Progress on Photocatalytic CO₂ Reduction Based on Perovskite Oxides

Accelerating Charge Separation and CO₂ Photoreduction in Aqueous Phase under Visible Light with Ru Nanoparticles Loaded on Ga-Doped NiTiO₃ in a Batch Photoreactor

Photocatalyst Engineering for Water-Based CO2 Reduction Under Visible Light Irradiation to Enhance CO Selectivity: A Review of Recent Advances

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Synergistic effect stemming from vertically anchored seamless 2D MoSe2 nanosheets on 1D NiTiO3 nanofibers toward CO2 photoreduction

Cited by 9 publications

References 41 publications

Research Progress on Photocatalytic CO2 Reduction Based on Perovskite Oxides

Research Progress on Photocatalytic CO2 Reduction Based on Perovskite Oxides

Accelerating Charge Separation and CO2 Photoreduction in Aqueous Phase under Visible Light with Ru Nanoparticles Loaded on Ga-Doped NiTiO3 in a Batch Photoreactor

Photocatalyst Engineering for Water-Based CO2 Reduction Under Visible Light Irradiation to Enhance CO Selectivity: A Review of Recent Advances

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Product

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Research Progress on Photocatalytic CO₂ Reduction Based on Perovskite Oxides

Research Progress on Photocatalytic CO₂ Reduction Based on Perovskite Oxides

Accelerating Charge Separation and CO₂ Photoreduction in Aqueous Phase under Visible Light with Ru Nanoparticles Loaded on Ga-Doped NiTiO₃ in a Batch Photoreactor