Preparation of Cu2O Nanoparticles as a Catalyst in
Photocatalyst Activity Using a Simple Electrodeposition
Route
الباحث الأول:
Hayder Khudhair Khattar1
الباحثين الآخرين:
Amer Mousa Jouda1
, Fuad Alsaady2
المجلة:
Nano Biomed. Eng., 2018, Vol. 10, Iss. 4
تاريخ النشر:
None
مختصر البحث:
In order to obtain inexpensive and effective application of catalyst for photodegradation, Cu2O
powder was prepared by the simple and inexpensive electrodeposition method using surfactants
such as glycerin (GLY), polyvinyl alcohol (PVA), poly(N-vi…
In order to obtain inexpensive and effective application of catalyst for photodegradation, Cu2O
powder was prepared by the simple and inexpensive electrodeposition method using surfactants
such as glycerin (GLY), polyvinyl alcohol (PVA), poly(N-vinylpyrrolidone) (PVP) that helped the
growth and nucleation of suspended particles. These particles were distinguished by atomic force
microscopy (AFM), X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM)
and high-resolution transmission electron microscopy (HRTEM). Diameter size of these obtained
particles was found to reach to about 40 nm. In order to demonstrate the photodegradation efficiency
of the copper oxide in the removal of organic malachite green oxalate (MG) dye, the catalyst was
used both in calcination at 300 °C and without calcination. Parameters such as the amount of
catalyst, the concentration of dye, the pH of dye sol, and the temperature were calculated. Pseudo
first order reactions according to Langmuir-Hinshelwood kinetics could be obtained from the result
of photocatalytic reactions. Parameters such as energy activation (Ea), enthalpy of activation (ΔH0
),
entropy of activation (ΔS0
) and free energy of activation (ΔG0
) were calculated. The activation energy
was equal to 11.719 ± 1 and 11.083 ± 1 kJ/mol for MG dye in the presence of Cu2O nanoparticles in
both two cases of calcination and without calcination respectively.
