UV/VIS spectrometry Articles

  • Study on photocatalytic activity of TiO
    2
    and non–metal doped TiO
    2
    in Rhodamine B degradation under visible light irradiation

    Highly active photocatalytic TiO2 nanotubes were successfully synthesised by hydrothermal treatment in base medium using commercial TiO2 powder as Ti–source. Non–metal doped TiO2 samples were made by post–synthesis using urea, thio–urea, ammonium fluoride and ethylene glycol as N, S F and C source. ...


    By Inderscience Publishers

  • Characteristics of colloidal copper particles prepared by using polyvinyl pyrrolidone and polyethylene glycol in chemical reduction method

    A simple chemical reduction method is used to prepare colloidal copper nanoparticles where polyethylene glycol (PEG) and polyvinyl pyrrolidone (PVP) are used as stabiliser, size controller and capping agents. The main purpose of this paper is to report about the large improvement in replacing PEG by PVP in the reduction synthesis of copper nanoparticles. From the TEM results it was found that ...


    By Inderscience Publishers

  • Preparation and characterisation of CaO–Bi
    2
    O
    3
    complex oxide

    Ca4Bi6O13 powders prepared from a citric acid complex were characterised by X–ray diffraction, UV–vis diffuse reflectance spectra and specific surface area measurements. In a citric acid complex method, the single phase of Ca4Bi6O13 crystal was obtained at 700°C in air. The Ca4Bi6O13 powders calcined ...


    By Inderscience Publishers

  • Wet cation exchange route to semiconductor alloys: the case study of Mg
    x
    Zn
    1–x
    O

    We developed a novel cation exchange method to prepare the alloyed semiconductors. A series of self–assembled magnesium doped zinc oxide (MgxZn1–xO) particles were synthesised by varying the molar ratios of Mg precursor Mg5(CO3)4(OH)2•4H2O to Zn precursor ZnAc2•4H2O from 1:1 to 3:1 at different ...


    By Inderscience Publishers

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