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A novel polyarylidene ketone was synthesized using simple condensation polymerization of terephthaldehyde and 2,5-hexane dione (PAK) The physicochemical properties of the resulting polymer were evaluated using Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, UV-Visible absorbance, fluorescence, and SEM investigations. The findings show that the polymer is amorphous, has good thermal stability, and emits red light. It can also be used as a dye adsorbent in aqueous solutions, with high selectivity for the cationic dye methylene blue (MB). The adsorbent efficiency of PAK was measured as a function of pH, dosage, and initial dye concentration; the greatest dye removal of 96\u00a0% was obtained at pH 10, 50\u00a0mg dosage, and initial dye concentration of 20\u00a0ppm. Kinetics and isotherms were studied, showing that the pseudo-second-order model described kinetic data better than Freundlich and Langmuir and revealed a satisfactory chemisorption process. This study suggests that PAK can purify MB dyeing wastewater, remove Zn<jats:sup>2+<\/jats:sup>, Cu<jats:sup>2+<\/jats:sup>, Ni<jats:sup>2+<\/jats:sup>, Co<jats:sup>2+<\/jats:sup>, Cd<jats:sup>2+<\/jats:sup>, Fe<jats:sup>3+<\/jats:sup> metal ions well, and is selective for Fe<jats:sup>3+<\/jats:sup> and Cu<jats:sup>2+<\/jats:sup>; ion adsorption is chelating-based.<\/jats:p>","DOI":"10.1038\/s41598-022-20686-7","type":"journal-article","created":{"date-parts":[[2022,9,29]],"date-time":"2022-09-29T17:04:35Z","timestamp":1664471075000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Synthesis, characterization and application of high adsorption performance of novel 1,4-polyketone"],"prefix":"10.1038","volume":"12","author":[{"given":"Marwa M.","family":"Sayed","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Islam S.","family":"Abd El-Hamid","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haitham","family":"M. 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