The motivation of our current study is to carry out photocatalytic degradation experiments of methylene blue in the presence of Fe doped MgZnO/AC (Fe:MgZnO/AC) and MgZnO/AC catalysts and thus to examine the effect of the Fe-dopant metal on the photocatalytic activity of the catalysts. In this context, both catalysts (MgZnO/AC and Fe:MgZnO/AC) are synthesized by hydrothermal technique. Structural (XRD analysis) and optical (UV-Vis) properties of the synthesized catalysts are discussed. How the Fedopant metal affects the crystallite size and energy band gap of the MgZnO/AC catalyst is examined and the experimental data obtained are interpreted.
In this study, hydrochar was obtained from chickpea stalk by hydrothermal method. Then, activated carbon was synthesized by chemical activation method using ZnCl2 activator in the presence of this hydrochar. The effects of parameters such as impragnation rate (hydrochar/ZnCl2), impragnation rate, activation temperature and activation time on activated carbon synthesis were investigated. The iodine number of the obtained activated carbon was determined and its characterization was performed by SEM, BET, FTIR measurements. It was determined that the highest iodine number of synthesized activated carbon was 734 mg/g under conditions of impragnation time (24 hour), impragnation rate (1/2), activation temperature (400 oC), and activation time (45 minutes). The BET surface area of the activated carbon with the highest iodine number was determined as 572 m2 /g. The methylene blue number of synthesized activated carbon and hydrochar were found as 105 mg/g and 45 mg/g, respectively.
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