The Iodoargentate Framework as a High-Performance “Sweeper” for Specific Dye Pollutant

Abstract

With the assistance of solvated aluminum cation as the template, a novel iodoargentate was successfully constructed. The two-dimensional anionic framework displays high performance on cationic dye methylene blue (MB + ) capture with good efficiency and selectivity via ion exchange. Moreover, the adsorbed MB + can be readily and easily released in the presence of Na + .

An Imide-Decorated Indium-Organic Framework for Efficient and Selective Capture of Carcinogenic Dyes with Diverse Adsorption Interactions

“…Due to their predesigned architectures, − functional surface areas, − tunable pore metrics, − variable topologies, and high porosity, − metal–organic frameworks (MOFs), as a new class of porous hybrid materials, have recently received abundant interest for the diverse applications in gas storage and separation, − contaminant detection and removal, − catalysis, − luminescence, etc. − …”

A Series of Iodoargentates Directed by Solvated Metal Cations Featuring Uptake and Photocatalytic Degradation of Organic Dye Pollutants

“…Take samples 1 as an example, if solids 1 were immersed into the solution containing anionic (Fuchsin Acid, FA) or neutral (sudan I, SD) dyes, it shows neglected adsorption capacity and the intensity of characteristic abs peaks after 6 hours are as strong as those of the initial solution (Figure S10, S11). Thus the uptake process could be attributed to the resultant of cation exchange, as the charge‐matching guests can readily enter the pores while the mismatching dyes are unable to come into the interior of iodoargentate structures effectively . The possible reason for a larger absorption amount of MB over MV may be due to the different molecular sizes of the two cationic dyes.…”

“…Thus the uptake process could be attributed to the resultant of cation exchange, as the charge-matching guests can readily enter the pores while the mismatching dyes are unablet o come into the interior of iodoargentate structures effectively. [49][50][51] The possible reason for al arger absorption amount of MB over MV may be due to the different molecular sizes of the two cationic dyes. MB with as mall size (D x,y,z = 16.6 7.8 4.4 )c ould easily enter the space of 1-3 while MV with ar elatively large size (D x,y,z = 15.3 15.5 6.2 )c ould be hardly incorporated into the whole structures.…”

Pure Inorganic Iodocuprate Framework Embedding In Situ Generated [Pb4(OH)4]4+ Cubic Template

“…For example, the introduction of solvated lanthanide cations into iodoargentates endows the target materials with good luminescent properties . With a solvated aluminum cation as the template, an anionic Ag–I-based framework displaying excellent dye sorption properties was constructed . The cationic mononuclear complexes [M­(solvent) n ] m + aforementioned are mainly derived from the solvated role of the corresponding metal ions.…”

“…16 With a solvated aluminum cation as the template, an anionic Ag−I-based framework displaying excellent dye sorption properties was constructed. 17 The cationic mononuclear complexes [M(solvent) n ] m+ aforementioned are mainly derived from the solvated role of the corresponding metal ions. Thinking out of the box, we turned our focus to the employment of a hydrolysis role of specific metal ions to in situ generate discrete cationic metal hydroxide clusters [M x (OH) y ] n+ as inorganic templates to direct the formation of novel halometallates in terms of structure and property.…”