Photocatalytic back-conversion of CO 2 into oxygenate fuels using an efficient ZnO/CuO/carbon nanotube solar-energy-material: Artificial photosynthesis

Lashgari, Mohsen; Soodi, Sanaz; Zeinalkhani, Parisa

doi:10.1016/j.jcou.2017.01.017

Cited by 27 publications

(12 citation statements)

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“…Articial photosynthesis of methanol using CO 2 upon semiconductor materials in aqueous medium, is a modern/ green strategy, 9 in which H atoms (radicals) are transiently generated on the photocatalyst surface (H + + e cb À / H 10 ) and subsequently utilized in CO 2 conversion (hydrogenation) to methanol.…”

Section: Introductionmentioning

confidence: 99%

“…4,13,14 We also employed carbon nanotube (CNT), because it has been reported as an effective component for photocatalytic conversion of CO 2 into solar fuels, particularly alcohols. 9,15,16 Furthermore, it is worth noting that CNT has the capacity of hydrogen storage. 17 Therefore, on the resulting CNT/NiO composite material, the hydrogenation of CO 2 could occur effectively, and an appreciable amount of methanol is anticipated to be produced upon this binary nanocomposite photocatalyst.…”

Section: Introductionmentioning

confidence: 99%

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CO₂ conversion into methanol under ambient conditions using efficient nanocomposite photocatalyst/solar-energy materials in aqueous medium

Lashgari

Soodi

2020

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CO₂ conversion into methanol under ambient conditions using efficient nanocomposite photocatalyst/solar-energy materials in aqueous medium

Lashgari

Soodi

2020

RSC Adv.

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“…Besides the improvements in photocatalytic activity, it is also of great significance to tune the selectivity of highly reduced hydrocarbons in the products . Although different products, such as CO, CH 4 , CH 3 OH, HCOOH, and even C 2 H 4 , have been obtained by using carbon cocatalysts, few of these research works paid attention to the product selectivity and thus the understanding of the catalytic selectivity and mechanism remains unclear. In our case, we interestingly find that a higher CH 4 selectivity is achieved by using a lower proportion of RGO.…”

Section: Introductionmentioning

confidence: 99%

In Situ‐Fabricated 2D/2D Heterojunctions of Ultrathin SiC/Reduced Graphene Oxide Nanosheets for Efficient CO₂ Photoreduction with High CH₄ Selectivity

Han

Lei²,

Wang

et al. 2018

ChemSusChem

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Photoreduction of CO2 into fuel molecules such as CH4 represents a promising route to simultaneously explore renewable energy and alleviate global warming. However, the implementation of such a process is hampered by low product yields and poor selectivity. A 2D/2D heterojunction of ultrathin SiC and reduced graphene oxide (RGO) nanosheets was fabricated in situ for efficient and selective photoreduction of CO2. Ultrathin SiC suppresses significant charge recombination in the bulk phase, thus providing more energetic electrons. The robust 2D/2D heterojunction allows fast transfer of energetic electrons from SiC to RGO. Combining the vital role of RGO in facilitating CO2 activation, the optimized SiC/RGO exhibits an electron‐transfer rate of 58.17 μmol h−1 g−1 towards CO2 reduction, 2.7 times that of pure SiC (20.25 μmol h−1 g−1). About 92 % of the transferred electrons from SiC are devoted to generating CH4 (6.72 μmol h−1 g−1). Such high efficiency and selectivity are mainly a result of the densely accumulated energetic electrons within RGO, which facilitate the eight‐electron process to produce CH4. This work will inspire the design of catalyst/cocatalyst systems for efficient and selective photoreduction of CO2.

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“…156,157 As heteroestruturas de óxidos metálicos/nanotubos de carbono foram recentemente relatadas como catalisadores efetivos para a geração de H 2 a partir da quebra de água, para a fotorredução de CO 2 e para a degradação de poluentes orgânicos. [158][159][160][161] Assim como o CO 2 , o H 2 também é considerado um combustível com alto potencial para aplicações energéticas. 162 O H 2 também é considerado um combustível "verde" visto que o seu produto final de combustão é a água.…”

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Semicondutores Heteroestruturados: Uma Abordagem Sobre Os Principais Desafios Para a Obtenção E Aplicação Em Processos Fotoquímicos Ambientais E Energéticos

Bueno¹,

Lopes²,

Carvalho³

et al. 2019

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The study of the heterostructures aim the development of physico-chemical and photocatalytic properties higher than their isolated phases, which makes it possible to obtain higher efficiency and lower cost in several technological processes. Recently the heterostructured materials have been extensively used in the development of alternative technologies either for environmental pollution control or for renewable energy production, among other applications. However, the obtaining of a heterostructure with suitable features is not trivial. In this way, this review article presents a broad discussion about methods of obtaining heterostructures formed by semiconductors and their applications in the photochemical processes, mainly in the environmental field. It will be addressed the use of the heterostructures in photocatalytic application for the organic pollutants degradation, heavy metals removal, the inactivation of pathogenic microorganisms, beyond of the volatile organic compounds (VOC's) photooxidation and the photocatalytic abatement of nitrogen oxide (NO x) in gaseous phase. Finally, a discussion about the carbon dioxide (CO 2) photoreduction and hydrogen (H 2) production focusing mainly in the chemical energy production will be presented.

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Photocatalytic back-conversion of CO 2 into oxygenate fuels using an efficient ZnO/CuO/carbon nanotube solar-energy-material: Artificial photosynthesis

Cited by 27 publications

References 59 publications

CO₂ conversion into methanol under ambient conditions using efficient nanocomposite photocatalyst/solar-energy materials in aqueous medium

CO₂ conversion into methanol under ambient conditions using efficient nanocomposite photocatalyst/solar-energy materials in aqueous medium

In Situ‐Fabricated 2D/2D Heterojunctions of Ultrathin SiC/Reduced Graphene Oxide Nanosheets for Efficient CO₂ Photoreduction with High CH₄ Selectivity

Semicondutores Heteroestruturados: Uma Abordagem Sobre Os Principais Desafios Para a Obtenção E Aplicação Em Processos Fotoquímicos Ambientais E Energéticos

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Photocatalytic back-conversion of CO 2 into oxygenate fuels using an efficient ZnO/CuO/carbon nanotube solar-energy-material: Artificial photosynthesis

Cited by 27 publications

References 59 publications

CO2 conversion into methanol under ambient conditions using efficient nanocomposite photocatalyst/solar-energy materials in aqueous medium

CO2 conversion into methanol under ambient conditions using efficient nanocomposite photocatalyst/solar-energy materials in aqueous medium

In Situ‐Fabricated 2D/2D Heterojunctions of Ultrathin SiC/Reduced Graphene Oxide Nanosheets for Efficient CO2 Photoreduction with High CH4 Selectivity

Semicondutores Heteroestruturados: Uma Abordagem Sobre Os Principais Desafios Para a Obtenção E Aplicação Em Processos Fotoquímicos Ambientais E Energéticos

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CO₂ conversion into methanol under ambient conditions using efficient nanocomposite photocatalyst/solar-energy materials in aqueous medium

CO₂ conversion into methanol under ambient conditions using efficient nanocomposite photocatalyst/solar-energy materials in aqueous medium

In Situ‐Fabricated 2D/2D Heterojunctions of Ultrathin SiC/Reduced Graphene Oxide Nanosheets for Efficient CO₂ Photoreduction with High CH₄ Selectivity