Exploring the potential of graphene oxide as a functional material to produce hydrocarbons via photocatalysis: Theory meets experiment

Celaya, Christian A.; Delesma, Cornelio; Valadés-Pelayo, Patricio J.; Jaramillo-Quintero, Oscar A.; Castillo‐Araiza, Carlos O.; Ramos, L. Alarcon; Sebastián, P.J.; Muñiz, Jesús

doi:10.1016/j.fuel.2020.117616

Cited by 16 publications

(6 citation statements)

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“…The differences in conductivity, catalytic activity, and stability among the facets play a vital role in the path of the CO 2 reduction reaction. [ 150–153 ] By adjusting the geometry of Cu 2 O to expose different facets, the type and selectivity of reduction products can be changed from the adsorption of CO 2 and key intermediates. Liu et al.…”

Section: Characteristics and Modification Strategies Of Cu2o‐based Ca...mentioning

confidence: 99%

“…The differences in conductivity, catalytic activity, and stability among the facets play a vital role in the path of the CO 2 reduction reaction. [150][151][152][153] By adjusting the geometry of Cu 2 O to expose different facets, the type and selectivity of reduction products can be changed from the adsorption of CO 2 and key intermediates. Liu et al synthesized Cu 2 O nanoparticles with different morphologies by hydrothermal method for electrocatalytic reduction of CO 2 into methanol, ethanol, and isopropyl alcohol.…”

Section: Morphology Engineeringmentioning

confidence: 99%

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Converting CO₂ into Value‐Added Products by Cu₂O‐Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis

Zhang

et al. 2023

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Considering the high energy demand in modern society and the widespread acceptance of "carbon neutrality" policies, reducing CO 2 into value-added products through "artificial carbon cycling" seems more reasonable and attractive. [3,4] Among the various methods of CO 2 resource utilization, photocatalysis (PC), electrocatalysis (EC) and photoelectrocatalysis (PEC), which can be operated at room temperature and atmospheric pressure, are considered to be a relatively feasible scheme. [5][6][7][8][9] Photocatalysis based on semiconductor materials can directly absorb solar light and generate charge carriers with redox capability, simultaneously accomplishing energy storage and carbon reduction. [10][11][12][13] Electrocatalysis can be driven by multiple forms of renewable energy (solar energy, water energy, wind energy, biomass energy, wave energy, tidal energy, etc.) to realize the conversion of CO 2 at the suitable negative potential. [14][15][16] Photo electrocatalysis is a special combination of photocatalysis and electrocatalysis, using a semiconductor electrode with light response capability to achieve efficient CO 2 reduction. [17,18] However, CO 2 exhibits chemical inertness due to its linear molecular and high CO bond energy, which is owing to the adoption of sp hybrid orbital when C atoms bond with O atoms. [19][20][21] Therefore, it is challenging to activate CO 2 and convert it into desirable products thermodynamically. [22] In addition, the CO 2 reduction reaction involves multi-step electron transfer, hydrogenation and CC bond coupling, which determines it has a complex and stochastic reaction path. Therefore, developing an ideal catalyst with high activity, stability, and economy for CO 2 reduction is necessary.Since Inoue et al. successfully converted CO 2 into formic acid, formaldehyde, methanol and methane under sunlight irradiation, many semiconductor materials for CO 2 reduction have been developed and evaluated. [23][24][25][26] The n-type semiconductors, including TiO 2 , ZnO 2 and SrTiO 3 , have attracted wide attention due to their low cost, high photostability and environmental harmlessness. [27] However, the excessive band gap limits their light response range, making them unsuitable for the CO 2 conversion systems driven by solar light. [28,29] Cuprous oxide (Cu 2 O), as one of the copper-based semiconductors with abundant reserves on the earth, has a suitable band gap to absorb visible light, which occupies 42-43% of the solar spectrum. More Converting CO 2 into value-added products by photocatalysis, electrocatalysis, and photoelectrocatalysis is a promising method to alleviate the global environmental problems and energy crisis. Among the semiconductor materials applied in CO 2 catalytic reduction, Cu 2 O has the advantages of abundant reserves, low price and environmental friendliness. Moreover, Cu 2 O has unique adsorption and activation properties for CO 2 , which is conducive to the generation of C 2+ products through CC coupling. This review introduces the basic principles of CO...

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Section: Characteristics and Modification Strategies Of Cu2o‐based Ca...mentioning

confidence: 99%

Section: Morphology Engineeringmentioning

confidence: 99%

Converting CO₂ into Value‐Added Products by Cu₂O‐Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis

Zhang

et al. 2023

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“…However, it has been reported that their presence significantly improved the photocatalytic removal efficiency. This can be attributed to the role played in adsorbing the pollutant, acting as an electron acceptor, surfactant and support for the semiconductor [127][128][129]. Graphene oxide can be reduced to form reduced graphene oxide [130,131].…”

Section: Graphene Oxide-based Photocatalyst For Pesticide Degradationmentioning

confidence: 99%

Recent Strategies for Environmental Remediation of Organochlorine Pesticides

2020

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The amount of organochlorine pesticides in soil and water continues to increase; their presence has surpassed maximum acceptable concentrations. Thus, the development of different removal strategies has stimulated a new research drive in environmental remediation. Different techniques such as adsorption, bioremediation, phytoremediation and ozonation have been explored. These techniques aim at either degrading or removal of the organochlorine pesticides from the environment but have different drawbacks. Heterogeneous photocatalysis is a relatively new technique that has become popular due to its ability to completely degrade different toxic pollutants—instead of transferring them from one medium to another. The process is driven by a renewable energy source, and semiconductor nanomaterials are used to construct the light energy harvesting assemblies due to their rich surface states, large surface areas and different morphologies compared to their corresponding bulk materials. These make it a green alternative that is cost-effective for organochlorine pesticides degradation. This has also opened up new ways to utilize semiconductors and solar energy for environmental remediation. Herein, the focus of this review is on environmental remediation of organochlorine pesticides, the different techniques of their removal from the environment, the advantages and disadvantages of the different techniques and the use of specific semiconductors as photocatalysts.

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“…Metal doped ZnO thin film structures were also utilized to degrade toxic contaminants from the water [6,7]. Theoretical and experimental studies regarding the photocatalytic activity of graphene derivatives have also been studied and they were proven to be good photocatalysts [8,9]. Further modifications have been made by incorporating two dimensional (2D) structures like graphene or graphene oxide (GO) or reduced graphene oxide (rGO) to the nanocomposite catalysts [10,11].…”

Section: Introductionmentioning

confidence: 99%

Photodegradation of methylene blue dye using graphene oxide incorporated, post-transition metal doped zinc oxide thin films by spray pyrolysis

Paul,

Dhivyaprasath,

Ashok

et al. 2024

Phys. Scr.

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Photocatalytic activity of graphene oxide incorporated pure and metal doped zinc oxide thin films were studied against methylene blue dye under simulated solar irradiation. Thin films were deposited on a glass substrate using an automated spray pyrolysis technique at a temperature of 425 ºC. Aluminium, gallium, and indium were the post-transition metals used for doping. Graphene oxide content in the precursor solution was fixed at 0.00375 g/L. The formation of the wurtzite structure of zinc oxide has been confirmed using structural analysis. The average crystallite size of all the thin film samples was found to be in the range of 45 - 55 nm. The morphology and elemental composition of the films were studied using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The energy band gap of the material was determined from UV-Vis-NIR spectroscopic measurements using Tauc’s plot and it is in the range of 3.25 – 3.28 eV. Photoluminescence spectra of the as-deposited films were recorded. Intensity of the near band emission at 395 nm was found to decrease upon metal doping, indicating a better photocatalytic property. All the films were used for heterogeneous photocatalysis and the indium doped zinc oxide thin film incorporated with graphene oxide was found to be a better catalyst with an efficiency of 94.9% for degrading methylene blue dye in 180 minutes.

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Exploring the potential of graphene oxide as a functional material to produce hydrocarbons via photocatalysis: Theory meets experiment

Cited by 16 publications

References 44 publications

Converting CO₂ into Value‐Added Products by Cu₂O‐Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis

Converting CO₂ into Value‐Added Products by Cu₂O‐Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis

Recent Strategies for Environmental Remediation of Organochlorine Pesticides

Photodegradation of methylene blue dye using graphene oxide incorporated, post-transition metal doped zinc oxide thin films by spray pyrolysis

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Exploring the potential of graphene oxide as a functional material to produce hydrocarbons via photocatalysis: Theory meets experiment

Cited by 16 publications

References 44 publications

Converting CO2 into Value‐Added Products by Cu2O‐Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis

Converting CO2 into Value‐Added Products by Cu2O‐Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis

Recent Strategies for Environmental Remediation of Organochlorine Pesticides

Photodegradation of methylene blue dye using graphene oxide incorporated, post-transition metal doped zinc oxide thin films by spray pyrolysis

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Product

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Converting CO₂ into Value‐Added Products by Cu₂O‐Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis

Converting CO₂ into Value‐Added Products by Cu₂O‐Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis