Synthesis and photoluminescence of ZnAl2O4:Eu3+ hollow nanophosphors using carbon nanospheres as hard templates

Chen, Xiang Ying; Ma, Chao; Bao, Shi; Li, Zhao

doi:10.1016/j.jcis.2010.02.038

Cited by 31 publications

(6 citation statements)

References 21 publications

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“…Chen et al successfully used CNS, prepared by hydrothermal synthesis, as hard templates for ZnAl 2 O 4 : Eu 3+ hollow nanophosphors, describing a simple and novel synthetic strategy. 103 Sobkowicz et al used cellulose-derived CNS as nucleating agents of polylactide and polypropylene, obtaining competitive crystallization rates in comparison with the commonly used mineral talc nucleating agents. 104 Zubizarreta et al used Ni-loaded highly porous CNS for hydrogen storage, standing as promising materials in that application.…”

Section: Applicationsmentioning

confidence: 99%

Carbon nanospheres: synthesis, physicochemical properties and applications

et al. 2011

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The discovery of carbon nanostructures, essentially carbon nanotubes (CNT) and carbon nanofibres (CNF) has led to a big effort devoted to their synthesis, characterization, surface modification and use. Indeed, these structures have encountered application in a wide range of technological fields, such as adsorption, catalysis, hydrogen storage or electronics. Apart from the filamentous arrange of graphene sheets conducting to CNT or CNF, carbon can bond in other different ways to create structures with dissimilar properties. The pairing of pentagonal and heptagonal carbon rings can result in the formation of carbon nanospheres (CNS). This novel nanostructure has only now started to attract significant research activity. In its spherical arrangement, the graphite sheets are not closed shells but rather waving flakes that follow the curvature of the sphere, creating many open edges at the surface. Contrary to the chemically inert C 60 , the unclosed graphitic flakes provide reactive ''dangling bonds'' that are proposed to enhance surface reactions, establishing CNS as good candidates for catalytic and adsorption applications. Despite the embryonic stage of the field and the existing data being too scattered, this work is aimed to provide a comprehensive review of the existing literature related to CNS, exploring the different preparation routes employed, the critical characterization results as well as the applications studied so far.

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Section: Applicationsmentioning

confidence: 99%

Carbon nanospheres: synthesis, physicochemical properties and applications

et al. 2011

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“…It has been found that nano-scaled materials exhibit promising properties that are quite different from those of bulk materials [2]. Especially, nanomaterials with sphere structure show a lower density, higher surface area and distinct optical property, which have resulted in various applications in photonic crystals, catalysts, sensors, nanoscale chemical reactors and drug-delivery carriers [3][4][5]. Up to now, among the methods employed for the preparation of nanomaterials with sphere structure, hard or soft templateassisted synthetic route has been proved to be the most effective and multifunctional strategy to fabricate inorganic sphere-like nanostructures, and various types of hard templates (PS, carbon, silica spheres, etc.…”

Section: Introductionmentioning

confidence: 99%

A general, one-step and template-free synthesis of sphere-like zinc ferrite nanostructures with enhanced photocatalytic activity for dye degradation

Hou

Zhao

et al. 2011

Journal of Colloid and Interface Science

267

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“…From the beginning, diffrent approaches have been used in the synthesis of ZnAl 2 O 4 , including hydrothermal, sol-gel, combustion, and co-precipitation method, solid state reaction etc. (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23). Recently, the microwave combustion method (MCM) has developed as a potential technique for the synthesis of spinel aluminate nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

A Facile Green Synthesis and Optical Characterization of Nano Zinc Aluminate Phosphor

et al. 2022

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This study presents a facile green synthesis of zinc aluminate nanophosphor by the microwave combustion method. Natural Piper nigrum seeds extract was used as a combustion agent. To study the effect of annealing temperature on structural, compositional, and optical properties of nano zinc aluminate, as-synthesized sample was further annealed at temperatures 700⁰C and 900⁰C. The structural and optical characterizations were carried out using XRD, UV-Vis DRS, FTIR, and PL spectroscopy. The XRD and FTIR confirmed the formation of nano zinc aluminate. The calculated average crystallite sizes were between 5-20 nm. The effective energy bandgap of prepared nano zinc aluminate was found to be 4.48 eV, larger than the bulk bandgap of zinc aluminate. Further, the effective band gap was increased with higher annealing temperatures. The PL spectra exhibited intense emission in the UV and blue region with weak emission in the red region.

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Synthesis and photoluminescence of ZnAl2O4:Eu3+ hollow nanophosphors using carbon nanospheres as hard templates

Cited by 31 publications

References 21 publications

Carbon nanospheres: synthesis, physicochemical properties and applications

Carbon nanospheres: synthesis, physicochemical properties and applications

A general, one-step and template-free synthesis of sphere-like zinc ferrite nanostructures with enhanced photocatalytic activity for dye degradation

A Facile Green Synthesis and Optical Characterization of Nano Zinc Aluminate Phosphor

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