A new stable porous Pr-organic framework constructed by multi-iodine-substituted aromatic polycarboxylates: Synthesis, characterization, and selective adsorption of dyes Ying Sun Feng Ying Bai Xue Min Wang Yu Wang Li Xian Sun Yong Heng Xing 10.6084/m9.figshare.7931270.v2 https://tandf.figshare.com/articles/journal_contribution/A_new_stable_porous_Pr-organic_framework_constructed_by_multi-iodine-substituted_aromatic_polycarboxylates_Synthesis_characterization_and_selective_adsorption_of_dyes/7931270 <p>Poly[tris(dimethylformamide)(μ3-2,4,6-triiodol-1,3,5-benzene tricarboxylic acid)-praseodymium (III)] {Pr(TIBTC)(DMF)<sub>3</sub>}<sub>n</sub> (<b>1</b>) (H<sub>3</sub>TIBTC = 2,4,6-triiodo-1,3,5-benzene tricarboxylic acid) was synthesized by the reaction of Pr(NO<sub>3</sub>)<sub>3</sub>·6H<sub>2</sub>O and H<sub>3</sub>TIBTC at 85°C in a pyrex vial. <b>1</b> was characterized by elemental analysis, IR, UV–vis, TGA, PXRD, and atomic force microscopy analytical means. Each of the central Pr ions and the three carboxyl groups from the same ligand constitute a SBU, which is then joined by a carboxyl group to form a building block. In order to further explore the functional properties of <b>1</b>, we used this compound for adsorption experiments. It is found that <b>1</b> can effectively adsorb anionic dyes in aqueous solutions. In particular, there is a good adsorption efficiency for coomassie brilliant blue R-250. Therefore, <b>1</b> shows good prospects for selective adsorption of anionic dyes from wastewater solution.</p> 2019-04-23 11:41:06 Rare earth metal polyiodine trigonal carboxylic acid crystal selectivity