Recovery of platinum (IV) from aqueous solutions using 3-aminopropyl(diethoxy)methylsilane functionalized bentonite

Simultaneous Trace Electrochemical Determination of Xanthine Theophylline and Theobromine with a Novel Sensor Based on a Composite Including Metal Oxide Nanoparticle Multi‐walled Carbon Nanotube and Nano‐Na‐montmorillonite Clay

“…On the NNaM/PGE surface, it was observed that NNaM took a porous position outward on the surface covered with chitosan. (Figure 1d) [37]. As for NiO/MWCNT/NNaM/PGE, NiO coated in the internally spacing surface of NNaM and MWCNT (Figure 1e).…”

“…EDX spectrum of MWCNT/PGE (Figure S2b), on the other hand, contains only C and O elements that appeared in the composite film [36]. In the case of NNaM/PGE (Figure S2c), the characteristic elements in the structure of NNaM clay were observed [37]. NiO/MWCNT/NNaM/PGE (Figure S2d), it could be said that the characteristic peaks of each content in the composite film appeared in the EDX spectrum.…”

Advancements in sustainable platinum and palladium recovery: unveiling superior adsorption efficiency and selectivity with a novel silica-anchored acylthiourea adsorbent

“…2,3,8,10 Traditional and recent techniques that have been used for PGMs recovery from such solutions include solvent extraction, chemical precipitation, ion exchange, membrane separation, reverse osmosis, evaporation and adsorption. [10][11][12][13][14] However, some of these techniques have shortcomings such as poor selectivity, complex operational processes and low recovery rates. [10][11][12][13][14] Amongst the mentioned techniques, adsorption has emerged as the better option for metal recovery, owing to its cost-effectiveness, utilization of less energy and ability to signicantly remove precious metals from aqueous solutions including those which are in very low concentrations.…”

“…[10][11][12][13][14] However, some of these techniques have shortcomings such as poor selectivity, complex operational processes and low recovery rates. [10][11][12][13][14] Amongst the mentioned techniques, adsorption has emerged as the better option for metal recovery, owing to its cost-effectiveness, utilization of less energy and ability to signicantly remove precious metals from aqueous solutions including those which are in very low concentrations. 8,[10][11][12][13][14] Furthermore, adsorption displays several other advantages such as high removal efficiency, re-usability and tunability of the solid support by functionalizing it with organo-functional groups that will improve the selectivity of the adsorbent towards the metal of interest.…”

“…[10][11][12][13][14] Amongst the mentioned techniques, adsorption has emerged as the better option for metal recovery, owing to its cost-effectiveness, utilization of less energy and ability to signicantly remove precious metals from aqueous solutions including those which are in very low concentrations. 8,[10][11][12][13][14] Furthermore, adsorption displays several other advantages such as high removal efficiency, re-usability and tunability of the solid support by functionalizing it with organo-functional groups that will improve the selectivity of the adsorbent towards the metal of interest. [14][15][16] At present, a variety of adsorbents, especially those incorporating the amine functionality have been reported for PGMs recovery.…”