Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 254, Issue -, Pages -Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2019.109784
Keywords
Coordination polymer; Dye adsorption; Epoxidation; Heterogeneous catalyst; Molybdenum; Zinc
Categories
Funding
- Kharazmi University [4/8571]
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A new water-insoluble bi-metallic coordination polymer was simply prepared via polymerization-precipitation of molybdenum complex building blocks with Zn2+ cation. The linker was a di-carboxylic acid consisting of two coordination sites i.e. N,O and COO- suitable for coordinating to MoO2 unit and Zn2+, respectively. Characterization of the prepared coordination polymer was carried out with various physicochemical methods which confirmed the proposed structure. The prepared coordination polymer preferentially adsorbed methylene blue (more than 92% of methylene blue after 2 min) relative to methyl orange and can be reused at least four times without any loss of adsorption efficiency. The adsorption process of both dyes followed the pseudo-second order kinetic equation. Additionally, the obtained coordination polymer catalyzed epoxidation of olefins with tert-butyl hydroperoxide (TBHP) quantitatively with excellent selectivity (>99%) under mild reaction conditions.
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