Thermodynamic analysis for the sorptive removal of cesium and strontium ions onto synthesized magnetic nano zeolite

Experimental and theoretical investigations of Cs+ adsorption on crown ethers modified magnetic adsorbent

“…Prussian-blue-modified magnetite for treatment of Cs + in water was also tried [8]. However, the previously reported magnetic adsorbents coated with zeolites [9], polyoxometalates [10], multivalent phosphates [11], titanium ferrocyanide and hexacyanoferrates [12,13] normally do not have a high selectity of Cs + when it co-exists with other alkali cations [14].…”

Adsorption of toxic acidic dye from aqueous solution onto diethylenetriamine functionalized magnetic glycidyl methacrylate-N,N′-methylenebisacrylamide

“…The adsorption of dyes onto adsorbent surfaces may be either spontaneous or non-spontaneous in function of temperature. The limit temperature value corresponding to a null value of standard free energy can thus be deduced from eqn (12). The range of temperature can be predicted from the value of temperature at which the standard free energy is zero (T 0 ), and then the minimal temperature for the process to being spontaneous.…”

“…This problem can be overcome by incorporating a magnetic core in the GMA particles: an external magnetic eld allows recovering the particles at the end of adsorption step. [10][11][12][13] The most commonly used magnetic adsorbents are based on Fe 3 O 4 particles. 14,15 Magnetic adsorbents are usually composed of a magnetic core (to ensure a strong magnetic response) and a polymeric shell (to provide selective functional groups).…”

Adsorption of Scandium Ions by Amberlite XAD7HP Polymeric Adsorbent Loaded with Tri-n-Octylphosphine Oxide

“…From all the techniques developed for metallic ion recovery, the most eloquent one is adsorption, both from the point of view of the efficiency of the metallic ion recovery and from the economic point of view. In the specialized literature are presented a multitude of materials with adsorbent properties used to remove toxic metallic ions from water, such as metal oxides/hydroxides [18][19][20][21], zeolites [22][23][24], red mud [25], dolomite [26], commercial or synthetic activated carbon [27,28], biomass [29], activated alumina [30][31][32], bone meal [33], biopolymers [34], etc.…”