Adsorption behavior study and mechanism insights into novel isothiocyanate modified material towards Pd2+

Selective Recovery of Palladium (II) from Metallurgical Wastewater Using Thiadiazole-Based Chloromethyl Polystyrene-Modified Adsorbent

“…The FTIR spectra of PS-Cl, DMTD, PS-DMTD, and PS-DMTD-Pd (II) are shown in Figure 1 . The characteristic bands located at 677 cm −1 and 1264 cm −1 in the spectrum of PS-Cl ( Figure 1 a) corresponded to the stretching vibrations of C-Cl and the bending vibrations of CH 2 -Cl, respectively [ 24 ]. The characteristic peak at 2478 cm −1 found in the spectrum of DMTD ( Figure 1 b) corresponded to the stretching vibrations of -SH [ 31 ].…”

“…Stable adsorbents are easily formed by replacing the reactive chlorine groups on the PS-Cl with active groups through a simple grafting reaction [ 23 ]. Due to their high stability, the chloromethyl polystyrene-modified adsorbents are ideal candidates for the adsorption and recovery of Pd [ 24 , 25 , 26 ]. However, the chloromethyl polystyrene-modified adsorbents also can adsorb other platinum group metal ions [ 27 ].…”

An Aryl‐ether‐linked Covalent Organic Framework Modified with Thioamide Groups for Selective Extraction of Palladium from Strong Acid Solutions

“…[7] Therefore, the development of solid-state adsorbents with high stability and exceptional selectivity is extremely critical for solidstate adsorbents. Up to now, numerous adsorption materials have thus been investigated for the purpose, such as metalorganic frameworks, [8,9] silica materials, [10][11][12] polymeric resins, [13][14][15][16] porous organic polymers, [17,18] modified porous g-C 3 N 4 , [19] and functionalized magnetic nano stirring rods. [20] In spite of that, the modest performance of most current adsorbents under the aforementioned harsh conditions underscores the vital importance of developing more efficient adsorbents.…”