Near-visible-light-driven noble metal-free of reduced graphene oxide nanosheets over CeO2 nanowires for hydrogen production

Liu, Fang; Wang, Xinhong; Zhang, Linus; Persson, Kenneth M; Chen, Bor Yann; Hsu, Yang; Chang, Chang Tang

doi:10.1016/j.jtice.2019.12.008

Cited by 12 publications

(5 citation statements)

References 78 publications

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“…photocatalyst is comparable to the work done by Hager et al[42] but better than that prepared by Fang Liu et al[53]. This discrepancy is due to the different preparation techniques and different experimental parameters.…”

supporting

confidence: 70%

Synthesis of rGO-like materials from local agricultural wastes by microwave treatment followed by pyrolysis

Rizk,

Mahmoud,

Elzahid

et al. 2024

Journal of Advanced Engineering Trends

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supporting

confidence: 70%

Synthesis of rGO-like materials from local agricultural wastes by microwave treatment followed by pyrolysis

Rizk,

Mahmoud,

Elzahid

et al. 2024

Journal of Advanced Engineering Trends

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“…To enhance the H 2 production with the CeO 2 -based materials, chemical and/or structural modifications are necessary. The addition of carbonaceous materials, such as graphene oxide (GO) or reduced graphene oxide (rGO), can increase the separation between the photoproduced e − /h + charge carriers and the absorption of the visible part of the solar radiation [ 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

CeO2-rGO Composites for Photocatalytic H2 Evolution by Glycerol Photoreforming

et al. 2023

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The interaction between CeO2-GO or CeO2-rGO and gold as co-catalysts were here investigated for solar H2 production by photoreforming of glycerol. The materials were prepared by a solar photoreduction/deposition method, where in addition to the activation of CeO2 the excited electrons were able to reduce the gold precursor to metallic gold and the GO into rGO. The presence of gold was fundamental to boost the H2 production, whereas the GO or the rGO extended the visible-light activity of cerium oxide (as confirmed by UV-DRS). Furthermore, the strong interaction between CeO2 and Au (verified by XPS and TEM) led to good stability of the CeO2-rGO-Au sample with the evolved H2 that increased during five consecutive runs of glycerol photoreforming. This catalytic behaviour was ascribed to the progressive reduction of GO into rGO, as shown by Raman measurements of the photocatalytic runs. The good charge carrier separation obtained with the CeO2-rGO-Au system allowed the simultaneous production of H2 and reduction of GO in the course of the photoreforming reaction. These peculiar features exhibited by these unconventional photocatalysts are promising to propose new solar-light-driven photocatalysts for green hydrogen production.

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“…Moreover, it is used in many fields such as low-temperature oxidation, absorption, alcohol-to-oxygen conversion, solid fuel cells and wastewater treatment [4]. Furthermore, photocatalytic activity can be synergistically enhanced by doping cerium, as the redox couple Ce 3+ /Ce 4+ can be transferred between Ce 2 O 3 and CeO 2 through either oxidation or reduction [4,10]. CeO 2 is a material that can be used in various catalytic reactions [3].…”

Section: Introductionmentioning

confidence: 99%

“…There are some examples in the literature in which CeO 2 particles were combined with reduced graphene oxide or graphene for different applications [3,10,[18][19][20][21][22]. Even though it can be a potential composite for CO 2 adsorption and a possible photocatalyst for its reuse, the synthesis of monolithic structures of rGO with CeO 2 is not well studied, especially in terms of functionalization and its effect on the interactions with CO 2 .…”

Section: Introductionmentioning

confidence: 99%

“…These monolithic composite structures will add a high specific surface area, low pressure drops and excellent mechanical and thermal stability compared with those of the corresponding particulate catalysts [4,12]. There are some examples in the literature in which CeO2 particles were combined with reduced graphene oxide or graphene for different applications [3,10,[18][19][20][21][22]. Even though it can be a potential composite for CO2 adsorption and a possible photocatalyst for its reuse, the synthesis of monolithic structures of rGO with CeO2 is not well studied, especially in terms of functionalization and its effect on the interactions with CO2.…”

Section: Introductionmentioning

confidence: 99%

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CO2 Capture by Reduced Graphene Oxide Monoliths with Incorporated CeO2 Grafted with Functionalized Polymer Brushes

et al. 2021

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The monolithic materials of reduced graphene oxide (rGO) can be used successfully in CO2 adsorption. Here, the incorporation of CeO2 particles with and without polymer brushes grafted from the particles showed that the structural properties could be changed, affecting the adsorption of CO2. Polymer brushes of (1) poly(acrylic acid) (PAA), (2) poly(vinyl caprolactam) (PVCL) and (3) poly[(2-(methacryloyloxy)ethyl) trimethylammonium chloride] (PMETAC) were grafted from CeO2 via reversible addition−fragmentation chain transfer (RAFT) polymerization. The preparation of monoliths of rGO with different modified CeO2 particles led to different thermal properties (TGA), structural changes (BET isotherms) and CO2 adsorption. The responsive character of the CeO2@polymer was proven by the DLS and UV results. The responsive character of the particles incorporated into the rGO monolith affected not only the adsorption capacity but also the microstructure and values of the surface volume of the pores of the monolith. Monoliths with porosity values for better adsorption were affected by the responsive character of the polymer.

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Near-visible-light-driven noble metal-free of reduced graphene oxide nanosheets over CeO2 nanowires for hydrogen production

Cited by 12 publications

References 78 publications

Synthesis of rGO-like materials from local agricultural wastes by microwave treatment followed by pyrolysis

Synthesis of rGO-like materials from local agricultural wastes by microwave treatment followed by pyrolysis

CeO2-rGO Composites for Photocatalytic H2 Evolution by Glycerol Photoreforming

CO2 Capture by Reduced Graphene Oxide Monoliths with Incorporated CeO2 Grafted with Functionalized Polymer Brushes

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