Adsorption of aspirin and paracetamol from aqueous solution using Fe/N-CNT/β-cyclodextrin nanocomopsites synthesized via a benign microwave assisted method

Acetaminophen adsorption using a low‐cost adsorbent prepared from modified residues of Moringa oleifera Lam. seed husks

“…This fact indicates that the adsorption occurred in a monolayer and the adsorbed molecules did not interact with each other . Other authors have observed a better application of this model for the adsorption of APAP in low‐cost adsorbents …”

“…It is plausible to consider the present value of Δ S ° as low, indicating the reversibility of APAP adsorption. Other adsorption works on this contaminant also have resulted in positive values of ΔS° …”

Enhanced adsorption of acetylsalicylic acid over hydrothermally synthesized iron oxide-mesoporous silica MCM-41 composites

“…For instance, it was reported that modified natural zeolites and clays, which were clipnotilolite, bentonite, and kaolin, showed adsorption capacity in the range of 1.1-2.1 × 10 −5 mol/g (1.98-3.78 mg g −1 ) when measured at pH of 6-6.5 at 303 K [39] . Recently, a high adsorption capacity up to 45.4 mg g −1 on Fe/nitrogen doped carbon nanotubes-cyclodextrins composite was reported, but it was achieved under acidic condition at pH of 2 [40] , which was not economical for waste treatment. When the adsorption process was carried out at pH of 6-8 at 298 K, the composite gave acetylsalicylic acid adsorption of approximately 5 mg g −1 .…”

“…Several methods to treat pharmaceutical pollutants have been reported, such as via electrochemical advanced oxidation processes (AOPs) [6] , photocatalysis [7] , membranes [8,9] , and also adsorption process [10][11][12][13][14][15] . Particular attention has been paid to developing the adsorption technology since it has become one of the superior approaches to eliminate micro organic pollutants in wastewater due to its ease of operation and low cost.…”

“…Particular attention has been paid to developing the adsorption technology since it has become one of the superior approaches to eliminate micro organic pollutants in wastewater due to its ease of operation and low cost. In addition to carbon-based materials [10][11][12] , studies have been continuously carried out to design the adsorbents with high adsorption capacity based on mesoporous silica [13][14][15][16][17] . Among the mesoporous silica, the MCM-41 as one of the M41S mesoporous silica is potentially used as an adsorbent to remove organic pollutants [13][14][15][16] .…”