A facile hydrothermal route to synthesize novel PbI2 nanorods

Kaviyarasu, K.; Sajan, D.; Selvakumar, M.; Thomas, S. Augustine; Anand, D. Prem

doi:10.1016/j.jpcs.2012.06.005

Cited by 79 publications

(24 citation statements)

References 29 publications

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“…Figure 8 illustrates the FTIR spectrum of PbI 2 nanoparticles. All absorption bands can be indexed to vibration modes of inorganic clusters with no organic modes were observed; in good agreement with results reported by Kaviyarasu et al [20]. The absorption band at 1612 cm -1 is indexed to O-H vibration mode.…”

Section: Resultssupporting

confidence: 90%

Synthesis of PbI2 nanoparticles by laser ablation in methanol

Ismail

Mousa

Khashan

et al. 2016

J Mater Sci: Mater Electron

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We report the first synthesis of colloidal lead iodide PbI 2 nanoparticles by pulsed laser ablation in methanol. Structural and optical properties of PbI 2 nanoparticles were investigated. The optical absorption data showed three distinct absorption peaks (Plasmon) at 220, 250 and 302 nm, with a direct optical band gap of 2.82 eV. X-ray diffraction XRD analysis revealed that the synthesized PbI 2 nanoparticles were polycrystalline in nature with hexagonal phase. Transmission electron microscope (TEM) investigation displayed (18-40 nm) spherical PbI 2 nanoparticles. The electrical and photo-response characteristics of PbI 2 nanoparticles/n-Si heterojunction were measured and analyzed.

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Section: Resultssupporting

confidence: 90%

Synthesis of PbI2 nanoparticles by laser ablation in methanol

Ismail

Mousa

Khashan

et al. 2016

J Mater Sci: Mater Electron

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“…The nanocrystals exhibited bands assigned to (Ce-Ti-O) and Ti-O near 544 cm −1 and 798 cm −1 that were from the longitudinal optical mode (LOM). The red shift of the LO mode of amorphous TiO 2 from 870 cm −1 to 798 cm −1 was a consequence of the presence of CeO 2 nanograins27282930. The intensity of the band assigned to the LO mode of the amorphous TiO 2 phase increased with increasing TiO 2 content.…”

Section: Resultsmentioning

confidence: 93%

Photodegradation of organic pollutants RhB dye using UV simulated sunlight on ceria based TiO2 nanomaterials for antibacterial applications

Kaviyarasu

Kennedy

Manikandan

et al. 2016

Sci Rep

388

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To photo-catalytically degrade RhB dye using solar irradiation, CeO 2 doped TiO 2 nanocomposites were synthesized hydrothermally at 700 °C for 9 hrs. All emission spectra showed a prominent band centered at 442 nm that was attributed to oxygen related defects in the CeO 2 -TiO 2 nanocrystals. Two sharp absorption bands at 1418 cm −1 and 3323 cm −1 were attributed to the deformation and stretching vibration, and bending vibration of the OH group of water physisorbed to TiO 2 , respectively. The photocatalytic activities of Ce-TiO 2 nanocrystals were investigated through the degradation of RhB under UV and UV+ visible light over a period of 8 hrs. After 8 hrs, the most intense absorption peak at 579 nm disappeared under the highest photocatalytic activity and 99.89% of RhB degraded under solar irradiation. Visible light-activated TiO 2 could be prepared from metal-ion incorporation, reduction of TiO 2 , non-metal doping or sensitizing of TiO 2 using dyes. Studying the antibacterial activity of Ce-TiO 2 nanocrystals against E. coli revealed significant activity when 10 μg was used, suggesting that it can be used as an antibacterial agent. Its effectiveness is likely related to its strong oxidation activity and superhydrophilicity. This study also discusses the mechanism of heterogeneous photocatalysis in the presence of TiO 2 . Solar energy is uniquely poised to solve major energy and environmental challenges that are being faced by humankind. As such, it is important to develop a suitable environmentally-friendly technology that permits the full range of the solar spectrum to be used for simultaneously solving energy and environmental challenges. It has been proposed that it is possible to address these challenges using nanocomposite materials that are capable of solar photocatalytic conversion 1,2 . Nanocomposite materials have a mixture of different chemical compositions and have received wide interest from fundamental and applied science researchers. The physical properties of these materials can be combined to produce materials that have desirable characteristics. Optical or biological characteristics can change with decreasing particle sizes, which is a major reason for interest in nanocomposite materials 3 . For example, metal oxide nanocomposites have excellent physical properties, such as high hardness and melting points, low densities and coefficients of thermal expansion, high thermal conductivities, good chemical stabilities. They also have improved mechanical properties, such as higher specific strengths, better wear resistance and specific modulus, and have wide potential for various industrial fields 4,5 .

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“…1 The synthesis of silver oxide (AgO) nanoparticles with well-dened size, size distribution, morphology, and crystallinity becomes increasingly important for advances in the eld of nanotechnology, in particular for selective catalysts or selfassembled patterns. [4][5][6][7][8][9] By combining these metals into a single entity, catalytic properties can be further enhanced and localized surface plasmon absorption can be varied continuously between the limits of monometallic MgO and AgO nanoparticles. It also nds tremendous application in catalysis, refractory industries, electronics, cosmetics and waste water remediation.…”

Section: Introductionmentioning

confidence: 99%

A comparative study on the morphological features of highly ordered MgO:AgO nanocube arrays prepared via a hydrothermal method

et al. 2015

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II-VI semiconductor nanotubes are a recently developed class of nanomaterials whose unique photophysical properties are helping to create a new generation of nanomaterials in the field of photonics and microelectronics. In this report, we examine the progress in adapting these nanomaterials for several optoelectronics applications followed by characterization studies. Magnesium oxide and silver oxide (MgO:AgO) nanoparticles were synthesized using a hydrothermal method by taking magnesium nitrate, silver oxide and glycine. X-ray diffraction (XRD) results showed that the peaks are consistent with a pure phase cubic structure of MgO. The XRD pattern also confirmed the crystallinity and phase purity of the sample. Nanocrystal sizes were found to be up to 25 nm as revealed by XRD and HRTEM.Photoluminescence measurement (PL) reveals the systematic shift of the emission band towards lower wavelength thereby ascertaining the quantum confinement effect.

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A facile hydrothermal route to synthesize novel PbI2 nanorods

Cited by 79 publications

References 29 publications

Synthesis of PbI2 nanoparticles by laser ablation in methanol

Synthesis of PbI2 nanoparticles by laser ablation in methanol

Photodegradation of organic pollutants RhB dye using UV simulated sunlight on ceria based TiO2 nanomaterials for antibacterial applications

A comparative study on the morphological features of highly ordered MgO:AgO nanocube arrays prepared via a hydrothermal method

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