Co(II/III) Complexes with Benzoxazole and Benzothiazole Ligands as Efficient Heterogenous Photocatalysts for Organic Dyes Degradation

Abstract

The problem of pollution in the current world is growing, however people’s awareness of environmental protection and ecology is also increasing. The aim of the study is to present three new Schiff base compounds with Co(II/III) ions and to assess their photocatalytic activity. The study was supported by cyclic voltammetry technique. In due course the complex 2 revealed as the most effective in AR18 degradation, even more than commercially available TiO2. The search for new photocatalysts able to decompose harmful organic dyes into environmentally friendly basic substances is becoming a new trend in the area of chemistry development.

Crystal structure and cytotoxic activity of Cu(ii) complexes with bis-benzoxazolylhydrazone of 2,6-diacetylpyridine

“…Based on the literature data, it can be assumed that the benzoxazole moiety of compound 1 is involved in the redox process. 79,80 Comparison of cyclic voltammograms of 1 and complexes 2–5 shows that, after coordination, the ligand does not participate in redox processes (Fig. S3, ESI,† panels B–E).…”

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“…The release of these colored wastewaters into ecosystems generates major environmental issues such as aesthetic pollution and eutrophication, as well as the formation of harmful by-products via oxidation, hydrolysis, or other chemical processes in the effluent phase [7,8]. Thus, it is necessary to develop efficient catalysts that can effectively decompose organic dyes and easy to prepare and operate [9]. Schiff base complexes with ligands containing N, O and other donor atoms play a significant role in applied chemistry as they are chemically stable, biologically active [10], and are applicable in different fields such as oxidation catalysis [11], electrochemistry [12], etc.…”