Cu2O nanoparticles: Radiation synthesis, and photocatalytic activity

LOW ENERGY ACCELERATORS AND RADIATION APPLICATIONS

Cu₂O nanoparticles: Radiation synthesis, and photocatalytic activity

LIN Xiangfeng，

ZHOU Ruimin，

SHENG Xiaohai，

ZHANG Jianqiang

Nuclear Science and Techniques

Vol.21, No.3

pp.146-151

Published in print 20 Jun 2010

DOI：10.13538/j.1001-8042/nst.21.146-151

40000

Cu₂O nanocrystals were synthesized by irradiating an aqueous solution of CuSO₄·5H₂O (1.25g), polyvinyl alcohol (PVA, 0.8 g), and isopropanol (3.1 mL). The products were characterized by powder XRD, TEM and SEM. Methyl orange degradation under visible light using the Cu₂O nanocrystals as catalyst was studied by UV-Vis absorption method. The results show that the products are nanocrystals of pure Cu₂O. Morphology and size of the nanoparticles are affected by the irradiation dose and pH value of the initial solution. Octahedral Cu₂O nanocrystals of 116 nm in size can be obtained at the initial pH of 8.0 and 280-kGy irradiation. The nanocrystals have excellent catalytic activity for photodegradation of the methyl orange solution bubbled at the air-flow rate of 750 mL·min^–1, due to the large {111} facets of octahedral Cu₂O particles.

E-beam irradiationCuprous oxideNanoparticlesPhotodegradation

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