Transition metal modified mesoporous silica adsorbents with zero microporosity for the adsorption of contaminants of emerging concern (CECs) from aqueous solutions

Single and multi-component adsorptive removal of bisphenol A and 2,4-dichlorophenol from aqueous solutions with transition metal modified inorganic–organic pillared clay composites: Effect of pH and presence of humic acid

“…The main goal of this work was to assess the equilibrium and dynamic adsorptive removal of BPA and DCP using transition metal-modified IOC adsorbents, both in single and multicomponent fashion as well as in the presence of NOM. The selection choice for the IOC type was made based on results of previous studies focused on the removal of non-phenolic organic contaminants of emerging concern [48][49][50][51][52]. The results presented here include the effect of solution pH and involved the use of IOCs that contained Co 2+ , Ni 2+ or Cu 2+ sites as the driving force for selectivity.…”

Progress in the design of nanoporous adsorbent materials containing transition metals for the removal of contaminants of emerging concern

“…There are several techniques that can be utilized for the effective incorporation of transition metals onto an adsorbent structure, including wetness impregnation [45][46][47], spontaneous monolayer dispersion [45,48], grafting [49][50][51][52][53], and ion exchange [54][55][56][57]. Among these, grafting and ion exchange have produced better results with respect to water-stability and loading of metal.…”

“…Among these, grafting and ion exchange have produced better results with respect to water-stability and loading of metal. Both of these techniques ensure embedding of the transition metal onto the surface with sufficient strength as to avoid or minimize leaching during uptake of organic adsorbates, particularly in the case of grafting [49,52,53]. In addition, both techniques offer good control over the loading and stoichiometry of the loading of the transition metal and this helps with the optimization of transition metal content in the adsorbate [58,59].…”

Fe(III)‐Functionalized Magnetic Covalent Organic Frameworks for Fast Adsorption and Removal of Phenylbutazone in Aqueous Solution

“…The interactions to describe the adsorption phenomena usually include size exclusion, electrostatic interactions, π‐complex formation, etc. Among the reported works about NSAIDs adsorption, the most common phenomena are electrostatic interaction and the adsorbents loaded with active metals such as Ni 2+ , Cu 2+ , Co 2+ , Zn 2+ , etc …”

“…Among the reported works about NSAIDs adsorption, the most common phenomena are electrostatic interaction and the adsorbents loaded with active metals such as Ni 2 + , Cu 2 + , Co 2 + , Zn 2 + , etc. [4,9,55,56] Herein, we report the fast synthesis of Fe(III) functionalized magnetic COFs (MCOF(Fe)) at ambient temperature and the significant usage in removing phenylbutazone from aqueous solution. Specifically, MCOF(Fe) is used as a novel adsorbent to demonstrate the proof-of-concept due to its special morphology and exceptional chemical and thermal stability.…”