RSC Advances p. 73947 - 73952 (2016)
Update date:2022-08-11
Topics:
Maneechakr, Panya
Karnjanakom, Surachai
Samerjit, Jittima
In this study, ZnO particles with different morphologies were synthesized by a novel co-solvothermal method using benzene. The prepared samples were characterized by Brunauer-Emmett-Teller (BET) measurements, X-ray diffractometry (XRD), scanning electron microscopy coupled with an energy dispersive X-ray detector (SEM-EDX), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectrometry (XPS), and H2-temperature programmed reduction (H2-TPR). The results showed that the molecular sizes and carbon numbers of the alcohols used in the reaction and the addition of benzene had a great effect on the morphologies, textural properties, and crystalline structures of the material products in our reaction system. Different ZnO morphologies, such as spherical coral-like, carnation-like, rose-like, and plate-like structures, were obtained using methanol, ethanol, propanol, and butanol, respectively. Moreover, Cu particles loaded on ZnO with different morphologies were also investigated for the hydrogenation of CO2 to CH3OH. High catalytic activity and selectivity (82.8%) for CH3OH formation were obtained using ZnO prepared from methanol with Cu doping (Cu/ZnO-Me).
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