Catalytic activity of a new Cd (II) complex in the peroxidation of cyclohexane and the resulting CdO nanoparticles in the removal of Congo red

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Publikace nespadá pod Lékařskou fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
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RAZMARA Zohreh KARIMI Pouya SHAHRAKI Somaye SHIRI Fereshteh NEČAS Marek

Rok publikování 2023
Druh Článek v odborném periodiku
Časopis / Zdroj Applied Organometallic Chemistry
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://doi.org/10.1002/aoc.7079
Doi http://dx.doi.org/10.1002/aoc.7079
Klíčová slova adsorption; Cd (II) complex; CdO nanoparticles; Congo red; peroxidative oxidation
Popis A new coordination complex of [Cd (2,2'-bipyridine)(dipic) (H2O)2]. 7H2O (dipic2- =?pyridine 2,6-dicarboxylate) was synthesized under hydrothermal conditions. The crystal structure of Cd complex was characterized by X-ray diffraction. The results confirmed that the coordination geometry of Cd2+ is a distorted pentagonal bipyramid. The complex was evaluated as a catalyst for the peroxidation of cyclohexane. The oxidation reaction was performed under mild conditions by hydrogen peroxide at room temperature. In the absence of HNO3, Cd complex exhibits a maximum yield of 31%. CdO nanoparticles were synthesized through thermal analysis of Cd complex and identified by various techniques. The ability of CdO nanoparticles was investigated for the removal of Congo red (CR). The effects of contact time, adsorbent dosage, and pH were evaluated using batch method. Studies have shown that the uptake process is pseudo-second order. Also, the adsorption isotherm can be well fitted by the Langmuir model, while this process is spontaneous.
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