Influence of carbohydrate polymer shaping on organic dye adsorption by a metal–organic framework in water

Abstract

A thorough analysis and comparison was conducted of the Orange II and Rhodamine B dye adsorption properties of unshaped MIL-100(Fe) (MIL) particles and alginate polymer-shaped MIL beads (MIL-alg).

Adsorption of lead ions from wastewater using electrospun zeolite/MWCNT nanofibers: kinetics, thermodynamics and modeling study

“…73,74 The model's fitness reveals that complicated adsorption phenomenon has occurred and there might exist an interaction between the adsorbate and adsorbent. 75,76…”

“…73,74 The model's tness reveals that complicated adsorption phenomenon has occurred and there might exist an interaction between the adsorbate and adsorbent. 75,76 Furthermore, Bangham's model has 0.94 as the value of R 2 , which depicts that the model did not conform well with the experimental data, revealing that the pore diffusion phenomena is not dominating the adsorption process. 77 Further, the Pb 2+ adsorption is likely to be regulated by inter-particle diffusion or mass transfer.…”

Alginic Acid Beads Containing Fluorescent Solvatochromic Dyes Display an Emission Color Response to a Cationic Surfactant

“…Alginate gel beads were prepared using the procedure given in Reference [ 25 ]. Specifically, 200 mL of an aqueous solution of sodium alginate (2 g corresponding to 0.01 mol of carboxylic acid groups) was added dropwise to a CaCl 2 aqueous solution (20 g, 0.18 mol, 200 mL).…”

“…A defined portion of the material was dried for 24 h and weighed. The result provided an average dry weight for the produced alginate gel beads ( 11 ) of 3.56 mg (9.1 µmol of carboxyl acid groups obtained from reference [ 25 ]).…”

Synthesis of a novel perovskite-carbon aerogel hybrid adsorbent with multiple metal-Lewis active sites for the removal of dyes from water: experimental and DFT studies

“…72,73 Three major peaks appeared in the O 1s spectra (Fig. 8b), which were ascribed to C-O-C, -COOH, and C-OH/O-H. 74 After the adsorption, the interactions occurred between oxygen-containing groups (-Obinds) and CV and AY17 molecules due to the decrease and shifting of the position of the O 1s peaks. Moreover, the new peaks exhibited in the DB-perovskite/CAg hybrid after adsorption suggested the presence of related reactions with CV and AY 17.…”