A simple solution route to ZnS nanotubes and hollow nanospheres and their optical properties

Zhang, Hua; Zhang, Shuyuan; Pan, Shuan; Li, Gongpu; Hou, J. G.

doi:10.1088/0957-4484/15/8/012

Cited by 73 publications

(57 citation statements)

References 41 publications

(37 reference statements)

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“…Recently, chains of Co hollow sub-microspheres have been synthesized via aggregation of PVP-stabilized primary nanoparticles presumably assisted by the gas bubbles liberated from the reaction. [255] Gas bubble templating has also been suggested as a means for preparing hollow spheres of sulfides (ZnS, [256] CuS [257] ), oxides (SnO 2 , [258] TiO 2 , [259] Fe 3 O 4 [260] ). It should be pointed out that the gas bubble templating mechanism remains highly speculative, especially in systems involving highly soluble gases (CO 2 , NH 3 ) resulting from decomposition of organic molecules such as urea and thiourea.…”

Section: Gas Bubblesmentioning

confidence: 99%

Hollow Micro‐/Nanostructures: Synthesis and Applications

2008

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Hollow micro‐/nanostructures are of great interest in many current and emerging areas of technology. Perhaps the best‐known example of the former is the use of fly‐ash hollow particles generated from coal power plants as partial replacement for Portland cement, to produce concrete with enhanced strength and durability. This review is devoted to the progress made in the last decade in synthesis and applications of hollow micro‐/nanostructures. We present a comprehensive overview of synthetic strategies for hollow structures. These strategies are broadly categorized into four themes, which include well‐established approaches, such as conventional hard‐templating and soft‐templating methods, as well as newly emerging methods based on sacrificial templating and template‐free synthesis. Success in each has inspired multiple variations that continue to drive the rapid evolution of the field. The Review therefore focuses on the fundamentals of each process, pointing out advantages and disadvantages where appropriate. Strategies for generating more complex hollow structures, such as rattle‐type and nonspherical hollow structures, are also discussed. Applications of hollow structures in lithium batteries, catalysis and sensing, and biomedical applications are reviewed.

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Section: Gas Bubblesmentioning

confidence: 99%

Hollow Micro‐/Nanostructures: Synthesis and Applications

2008

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“…Due to its non-toxicity, zinc sulphide is now used in waste water treatment as a photocatalyst in the degradation of organic pollutants such as dyes, halogenated derivatives, and pnitrophenol [15][16][17][18]. ZnS can be prepared in various dimensions, such as isotropic dots, spheres, and anisotropic sheets, platelets, and diskettes [19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Laser-assisted synthesis, and structural and thermal properties of ZnS nanoparticles stabilised in polyvinylpyrrolidone

Onwudiwe

Krüger

Jordaan

et al. 2014

Applied Surface Science

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Research Highlights-Zinc sulphide (ZnS) nanoparticles were synthesised by laser irradiation -The structural and morphological properties of the prepared samples were analysed -Larger particles were obtained by using Na 2 S instead of TAA as the sulphur source.-Phonon softening and line broadening of the peaks were observed -Size reduction occurred in the samples obtained from both sources Graphical Abstract AbstractZinc sulphide (ZnS) nanoparticles have been synthesised by a green approach involving laser irradiation of an aqueous solution of zinc acetate (Znac 2 ) and sodium sulphide (Na 2 S·9H 2 O) or thioacetamide (TAA) in polyvinylpyrrolidone (PVP). The structural and morphological properties of the prepared samples were analysed using a transmission electron microscope, TEM, a high resolution transmission electron microscope, HRTEM, X-ray diffraction, and Raman spectroscopy.The thermal properties were studied using a simultaneous thermal analyser (SDTA). Better dispersed and larger particles were obtained by using sodium sulphide (Na 2 S) instead of TAA as the sulphur source. X-ray diffraction (XRD) analyses and Raman measurement show that the particles have a cubic structure, which is usually a low temperature phase of ZnS. There were phonon softening and line broadening of the peaks which are attributed to the phonon confinement effect. The average crystallite size of the ZnS nanoparticles estimated from the XRD showed a reduction in size from 13.62 to 10.42 nm for samples obtained from Na 2 S, and 9.13 to The absorption spectra showed that the nanoparticles exhibit quantum confinement effects.

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“…1 [10][11][12] nitrides (GaN, B 24 N 24 ), [13][14] Si, Te, noble-metal nanotubes (Ag, Au, Pt, Pd), [15][16][17] titanate nanotubes 18 and copolymer nanotubes, 19 but reports on the synthesis of ZnS nanotubes are scarce. 20,21 Most nanotubes that have been synthesized are open-ended linear tubes. There are many methods to prepare nanotubes, e.g.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of ZnS nanotubes with crossed-channels

Chen

Ding

2007

J. Braz. Chem. Soc.

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Nanotubos de ZnS em forma de X foram sintetizados usando um método hidrotérmico. Uma nova reação hidrotérmica envolvendo hidrólise e oxidação simultâneas do solvente foi desenvolvido usando zinco em pó, água e NH 2 CSNH 2 como reagentes. As imagens de microscopia de transmissão eletrônica mostram que cada segmento dos canais tem cerca de 400 a 500 nm de comprimento. O diâmetro interno é 50 nm e o externo 70 nm e o espaço entre as camadas é cerca de 7 nm. Dados de difração de raios (XRD) mostram que o nanotubo obtido apresenta boa cristalização na fase Esfalerita cúbica. A banda em 293 nm no espectro de absorção no ultravioleta-visível encontra-se deslocado para o azul em cerca de 50 mm em relação ao ZnS bulk. O espectro de fotoluminescência dos nanotubos de ZnS mostra que o pico de emissão ocorre em 409 nm quando excitado a 365 nm.ZnS nanotubes with crossed-channels have been synthesized successfully using a hydrothermal method. A novel hydrothermal reaction of simultaneous solvent-oxidationhydrolysis has been developed using Zn powder, H 2 O and NH 2 CSNH 2 as reagents. TEM images show that each branch of the channels is about 400-500 nm long. The inner diameter is 55 nm, the outer diameter is 70 nm, and the interlayer spacing is about 7 nm. XRD data show that the product is well-crystallized in the cubic Sphalerite phase. The peak appears at 293 nm in the UV-Vis absorption spectrum, which is about 50 nm blue shifted from the bulk counterpart. The photoluminescence spectrum of ZnS nanotubes shows that the emission peak occurs at 409 nm when excited at 365 nm.

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A simple solution route to ZnS nanotubes and hollow nanospheres and their optical properties

Cited by 73 publications

References 41 publications

Hollow Micro‐/Nanostructures: Synthesis and Applications

Hollow Micro‐/Nanostructures: Synthesis and Applications

Laser-assisted synthesis, and structural and thermal properties of ZnS nanoparticles stabilised in polyvinylpyrrolidone

Synthesis and characterization of ZnS nanotubes with crossed-channels

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