Removal and recovery of acridine orange from solutions by use of magnetic nanoparticles

Microwave-enhanced synthesis of magnetic porous covalent triazine-based framework composites for fast separation of organic dye from aqueous solution

“…Significantly, adsorption capacity of MO onto sample 4 was calculated to be 291 mg g −1 (corresponding to 0.889 mmol g −1 or 0.262 mg m −2 ), which is much larger than that of many other magnetic porous composites [7][8][9][10][11][12][13][14][15]. Interestingly, this value is even larger than MO adsorption amounts in porous chromium-benzenedicarboxylates (MIL-101, ethylenediamine-grafted MIL-101, and the protonated ED-MIL- …”

“…By the application of an external magnetic field, the adsorbents can easily be separated from the solution. Many kinds of magnetic adsorbents, such as magnetic nanoparticles [7,8], organic group-modified [9] and polyelectrolyte-bound iron oxide magnetic nanoparticles [10], activated carbon/iron oxide magnetic composites [11][12][13], activated carbon/CoFe 2 O 4 composites [14], magnetic multi-walled carbon nanotubes (MWCNTs) filled with Fe 2 O 3 particles [15], have been developed, and their adsorption properties for the removal of dyes from aqueous solutions were investigated. However, the synthesis procedures of these magnetic materials are commonly complicated and require several steps.…”

Magnetic solid phase adsorption, preconcentration and determination of methyl orange in water samples using silica coated magnetic nanoparticles and central composite design

“…The parameters obtained from different models provide important information about the adsorption mechanism, the surface properties and affinity of the adsorbent [45]. The common models for investigation of the adsorption isotherm (Langmuir and Freundlich) were also fitted to the experimental data [23]. Langmuir's model does not take into account the variation in the adsorption energy, but it is the simplest description of the adsorption process.…”

“…The magnetic separation provides a suitable route for online separation [23]. MNPs can quickly be removed along with adsorbed compound from a matrix using a magnetic field [24].…”

Removal of acridine orange from water by graphene oxide

“…Many investigations have been performed to develop new adsorbents for the removal of dyes. Sorbents reported in literature include granular kohlrabi peel [8], cocos nucifera [9], qwlapalk clay [10], nanoparticles [11], charcoal [12] and cholesterol [13]. Adsorbents widely tested are clays [4,14,15] and carbon-based materials, due to their high specific surface area.…”