Leaching of Pb2+ and Te4+ in Yb3+ doped lead tellurite glasses in aqueous solution

• Main Authors: Hamzah, Khaidzir, Mohd. Yassin, M. Abdullah Izat, Sahar, Md. Rahim, Ghoshal, Sib Krishna
• Format: Article
• Language: English
• Published: Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia 2012
• Subjects: QC Physics
• Online Access: http://eprints.utm.my/id/eprint/29090/1/KhaidzirHamzah2012_LeachingofPb2%2BandTe4%2BinYb3.pdf; http://eprints.utm.my/id/eprint/29090/

A series of Yb doped lead oxychloride tellurite glasses with composition of (80-x)TeO2-10PbO-10PbCl2-xYb2O3 were prepared using conventional melt quenching technique. These glasses were then immersed in distilled water (pH 4 and pH 9) for 10 days. The quantitative analysis of Pb2+ and Te4+ were made using induced coupled plasma-mass spectrometer (ICP-MS). The results showed that Te4+ and Pb2+ were highly leached in acidic solution or at lower pH compared to alkaline solution and the addition of Yb3+ in the glass system had reduced or maintained the leaching of Te4+ and Pb2+ from the glasses.