Developing of buffer-precipitation method for lead metaborate (Pb(BO2)2 H2O) nanostructures

Amorphous lead metaborate (Pb(BO H O) nanostructures were synthesized by a simpl and cost-effective synthesis method which is based on precipitation of lead ions using boric acid/sodium hydroxide buffer (pH 9.2) in the presence of polyethylene glycol (PEG). Scanning electron microscopy images showed...

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Bibliographic Details
Published inMaterials science--Poland Vol. 38; no. 1; pp. 138 - 142
Main Authors Bulbul, Berna, Beyaz, Seda
Format Journal Article
LanguageEnglish
Published Sciendo 01.03.2020
Subjects
chemical synthesis
lead metaborate
nanomaterials
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Summary:Amorphous lead metaborate (Pb(BO H O) nanostructures were synthesized by a simpl and cost-effective synthesis method which is based on precipitation of lead ions using boric acid/sodium hydroxide buffer (pH 9.2) in the presence of polyethylene glycol (PEG). Scanning electron microscopy images showed that the average particle size is 30±9 nm and the particle shape is mostly spherical. The chemical formulation of Pb(BO H O was confirmed by infrared spectroscopy, inductively coupled plasma and thermal gravimetric analysis (TGA). The percentage of PEG molecules on the particle surface equal to 2.5 % was determined by TGA. Optical reflectance measurement was performed by UV-Vis spectroscopy. Based on the Kubelka-Munk function, it was calculated that the Pb(BO H O nanostructures have a direct band gap of 4.6 eV.
ISSN:2083-134X
DOI:10.2478/msp-2019-0092