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One Pot Synthesis and Characterization of Cesium Doped SnO_2 Nanocrystals via a Hydrothermal Process 被引量:1
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作者 k.kaviyarasu Prem Anand Devarajan +2 位作者 S.Stanly John Xavier S.Augustine Thomas S.Selvakumar 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2012年第1期15-20,共6页
The physico-chemical properties of cesium doped SnO2 nanocrystals synthesized by wet chemical method have been investigated. Scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray ana... The physico-chemical properties of cesium doped SnO2 nanocrystals synthesized by wet chemical method have been investigated. Scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDAX), inductively coupled plasma (ICP), atomic absorption spectroscopic (AAS) analyses, UV-vis-NIR spectral studies and dielectric studies were carried out for both pure SnO2 and cesium doped SnO2 nano-samples. All samples of SnO2 did not show any metallic cluster, but the sample containing cesium as a dopant displayed significant activity. The products formed were chloride and water representing a competitive advantage from the stand point of environmental protection. 展开更多
关键词 Wet chemical Tin oxide (SnO2) Cesium doped tin oxide (Cs:SnO2) Inductivelycoupled plasma (ICP) Atomic absorption spectroscopy (AAS)
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Synthesis and characterization of ZnO–CuO nanocomposites powder by modified perfume spray pyrolysis method and its antimicrobial investigation
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作者 D.Saravanakkumar S.Sivaranjani +6 位作者 k.kaviyarasu A.Ayeshamariam B.Ravikumar S.Pandiarajan C.Veeralakshmi M.Jayachandran M.Maaza 《Journal of Semiconductors》 EI CAS CSCD 2018年第3期1-7,共7页
Pure ZnO, ZnO–CuO nanocomposites can be synthesized by using a modified perfume spray pyrolysis method(MSP). The crystallite size of the nanoparticles(NPs) has been observed by X-ray diffraction pattern and is ne... Pure ZnO, ZnO–CuO nanocomposites can be synthesized by using a modified perfume spray pyrolysis method(MSP). The crystallite size of the nanoparticles(NPs) has been observed by X-ray diffraction pattern and is nearly 36 nm. Morphological studies have been analyzed by using Field Emission Scanning Electron Microscopy(FESEM) and its elemental analysis was reported by Elemental X-ray Analysis(EDX); these studies confirmed that ZnO and CuO have hexagonal structure and monoclinic structure respectively. Fourier Transform Infrared(FTIR) spectra revealed that the presence of functional frequencies of ZnO and CuO were observed at 443 and 616 cm-1.The average bandgap value at 3.25 e V using UV–vis spectra for the entitled composite has described a blue shift that has been observed here. The antibacterial study against both gram positive and negative bacteria has been studied by the disc diffusion method. To the best of our knowledge, it is the first report on ZnO–CuO nanocomposite synthesized by a modified perfume spray pyrolysis method. 展开更多
关键词 MSP method XRD FTIR FESEM CuO nanoparticles
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