Flame spray pyrolysis synthesized ZnO/CeO 2 nanocomposites for enhanced CO 2 photocatalytic reduction under UV–Vis light irradiation

Xiong, Zhuo; Lei, Ze; Xu, Zuwei; Chen, Xiaoxiang; Gong, Bengen; Zhao, Yongchun; Zhao, Haibo; Zhang, Junying; Chen, Zheng

doi:10.1016/j.jcou.2017.01.013

Cited by 96 publications

(37 citation statements)

References 56 publications

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“…This can be substantiated by the BiVO 4 synthesis, where, at relatively low temperature, scheelite-monoclinic phase was observed, while, at higher temperature, the phase changed to tetragonal [144]. It is generally used for synthesizing crystal-modified CuS, classical non-metaldoped photocatalysts, and heterojunction composite with higher surface area [145][146][147][148].…”

Section: Flame Spray Pyrolysismentioning

confidence: 92%

A review on the progress of nanostructure materials for energy harnessing and environmental remediation

et al. 2018

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The nanostructured materials offer various advantages as they provide more flexible space for ease reconstruction, as their nanosize expands the limits and results in confinement effect, enhanced mechanical stability, and large surface area, and make them suitable for photocatalytic activities. The advancement in synthesis techniques provides the freedom to alter its physical properties as per the demand. This article provides a 360° view point on the nanomaterials which are used for solar energy harnessing with respect to environmental and energy application. The discussion emphasizes on various synthesis methods of nanostructured materials, their mechanistic features, usage in demanding applications such as photosplitting of water for hydrogen production, artificial photosynthesis, and water and wastewater treatment with an endnote highlighting the future scope of nanomaterials for real-world applications.

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Section: Flame Spray Pyrolysismentioning

confidence: 92%

A review on the progress of nanostructure materials for energy harnessing and environmental remediation

et al. 2018

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“…In this regard, a spray process will be an excellent alternative for the fast and facile synthesis of such heterojunctions. For instance, ZnO/CeO 2 nanocomposites prepared by a flame spray pyrolysis were reported by Xiong et al (Xiong Z. et al, 2017). The nanocomposites exhibited enhanced CO 2 photoreduction efficiency, mainly attributed to the existence of heterojunction and the co-existence of Ce 4+ /Ce 3+ pairs.…”

Section: Semiconductor Heterojunctionsmentioning

confidence: 97%

Rational Design of Efficient Semiconductor-based Photocatalysts via Microdroplets: A Review

Wang

2019

KONA

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Semiconductor-based photocatalysis is regarded as an effective approach to harness solar energy to address the critical energy and environmental issues, such as fossil fuel shortage and climate change. The overall efficiency of the semiconductor-based photocatalysts can be further improved by creating nanocomposites with the incorporation of other functional materials, including metals, graphene, and metal-organic frameworks (MOFs). This critical review highlights the recent progress on the rational design of semiconductor-based photocatalysts via microdroplets, where the synthesis can be completed in a fast and controlled manner. Particular emphasis is given to three typical semiconductor-based composites, including semiconductor heterojunctions, crumpled graphene oxide/semiconductor composites, and MOF/semiconductor composites. The rationale behind the nanocomposite design, photocatalytic performance, and fundamental mechanisms are systematically discussed.

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“…CeO 2 is an effective catalyst for the removal of organic dyes from effluents because ceria also hops between Ce 3+ and Ce 4+ valence states containing oxygen vacancies that allow NCs to act as regenerative catalysts 32 . Various methods have been reported in the literature for the synthesis of ceria 33–37 , including sol-gel 38 , microwave combustion 39 , flame spray pyrolysis 40 , solvothermal 41 , microemulsion 42 , spray drying system 43 , hydrothermal 44 , and thermal decomposition 45 . Among these, the hydrothermal method is simple, which can produce high product yields 46 .…”

Section: Introductionmentioning

confidence: 99%

Urea assisted ceria nanocubes for efficient removal of malachite green organic dye from aqueous system

Sreekanth

Nagajyothi

Raju

et al. 2019

Sci Rep

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This study describes a simple, high-yield, rapid, and inexpensive route for the synthesis of cubic shape-like cerium oxide nanocubes (CeO2 NCs) using different urea concentrations (0.5, 1.0, and 2.0 g) by the hydrothermal method. The synthesized nanocubes (NCs) are labeled as CeO2 NCs-0.5, CeO2 NCs-1.0, and CeO2 NCs-2.0, corresponding to 0.5, 1.0, and 2.0 g of urea, respectively. The synthesized NCs were characterized by FT-IR, UV-visible, XRD, XPS, SEM and HR-TEM analysis. The synthesized NCs were cubic in shape with average sizes of 12, 12, and 13 nm for the CeO2 NCs-0.5, CeO2 NCs-1.0, and CeO2 NCs-2.0, respectively, obtained by the XRD analysis. The catalytic activity of the CeO2 NCs was studied for the purpose of obtaining the reduction of malachite green (MG) in the presence of sodium borohydride (NaBH4) at room temperature.

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Flame spray pyrolysis synthesized ZnO/CeO 2 nanocomposites for enhanced CO 2 photocatalytic reduction under UV–Vis light irradiation

Cited by 96 publications

References 56 publications

A review on the progress of nanostructure materials for energy harnessing and environmental remediation

A review on the progress of nanostructure materials for energy harnessing and environmental remediation

Rational Design of Efficient Semiconductor-based Photocatalysts via Microdroplets: A Review

Urea assisted ceria nanocubes for efficient removal of malachite green organic dye from aqueous system

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