Gamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogel
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- 作者：Jadranka Ž. Kuljanin-Jakovljević ; Aleksandra N. Radosavljević ; krkljes@vinca.rs" class="auth_mail" title="E-mail the corresponding author ; Jelena P. Spasojević ; Milica V. Carević ; Miodrag N. Mitrić ; Zorica M. Kačarević-Popović
- 关键词：Gamma irradiation ; PbS-PVA hydrogel nanocomposite ; Optical properties ; Structural properties ; Swelling properties ; Thermal properties
- 刊名：Radiation Physics and Chemistry
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：130
- 期：Complete
- 页码：282-290
- 全文大小：1570 K
文摘
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PbS-PVA hydrogel nanocomposite was prepared by gamma irradiation.
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PbS nanoparticles are around 5 nm in diameter, with band-gap energy of 1.84 eV.
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PbS nanoparticles are positively strained and under tensile stress (lattice expansion occurs).
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Hydrogels shows non-Fickian diffusion with typical values for water diffusion in polymers (10−9 cm2/s).
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Thermal stability of PbS-PVA xerogel nanocomposite is slightly enhanced compared to PVA xerogel.