Cadmium sulfide quantum dots/poly(acrylic acid-co-acrylic amide) composite hydrogel synthesized by gamma irradiation. (April 2018)

• Record Type: Journal Article
• Authors: Yang, Tao; Li, Qing; Wen, Wanxin; Hu, Liang; He, Weiwei; Liu, Hanzhou
• Is Part Of: Radiation physics and chemistry. Volume 145(2018:Apr.)
• Page Start: 130
• Page End: 134
• Publication Date: 2018-04
• Subjects: Gamma irradiation -- CdS quantum dot -- Composite hydrogel -- Photoluminescence; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2017.10.012
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: To improve the durability and stability of quantum dots (QDs) in the composite hydrogel, an irradiation induced reduction and polymerization-crosslinking method was reported herein where CdS QDs could be synthesized in situ and fastened to polymer chains due to the coordination forces between amino groups and CdS nanoparticles. The morphology and photoluminescence (PL) property of the composite hydrogel were studied. The result indicated that the CdS QDs with uniform size were dispersed evenly in the composite hydrogel, and the introduced CdS QDs had no obvious effect on the hydrogel structure. With the increases of reagent concentrations, PL intensity of the composite hydrogel was enhanced; however, the emission wavelength had no change. Highlights: CdS QDs composite hydrogel was synthesized by γ irradiation. Morphology, thermal stability and chemical structure were examined by SEM, TEM and XPS. Cds QDs are fastened to polymer chains because of the coordination between Cd and N elements. CdS QDs composite hydrogel has photoluminescence property.