Journal
ULTRASONICS SONOCHEMISTRY
Volume 58, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2019.104636
Keywords
Cu/Cu2O/ZnO/Al2O3; Nanocomposite; Sonochemical; Photocatalyst; MB
Categories
Funding
- University of Semnan
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This paper reports on the synthesis of Cu/ZnO/Al2O3 nanocomposites via a facile sonochemical-assisted approach using new starting reactants. This study was conducted to synthesis and photocatalytic evaluation of the Cu/ZnO/Al2O3 nanocomposite in vacuum conditions. The XRD results showed that Cu/ZnO/Al2O3 and CuO/ZnO/Al2O3 nanocomposites could be obtained after annealing at 600 degrees C for 3 h in vacuum conditions and in the air, respectively. The effects of Cu:Zn:Al ratio, ultrasonic irradiation, power, time, and capping agent on the product composition and morphology were also studied. Finally, the efficiency of various as-synthesized Cu/ZnO/Al2O3 nanocomposites for decolorization of methylene blue were evaluated. According to the results, using ultrasonic irradiation and annealing under vacuum, the efficiency is improved up to 100%. Because in this situation Cu/Cu2O/ZnO/Al2O3 is formed, which has a better absorption (due to Cu2O) and conductivity (due to Cu) than CuO/ZnO/Al2O3 for the photocatalysis process.
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