Facile preparation of sulfonic groups functionalized Mxenes for efficient removal of methylene blue

Recovery of Lanthanum(III) and Nickel(II) Ions from Acidic Solutions by the Highly Effective Ion Exchanger

“…The four peaks at 1175, 1125, 1037, and 1008 cm −1 observed on the Lewatit Monoplus SP112 before loading are attributed to the presence of sulfonic groups. These peaks prove the presence of stretching vibrations of S=O and S-O groups in the -SO 3 Na group [28]. It can be noticed that these peaks moved away or their intensity changed after the La(III) and Ni(II) ions sorption process.…”

“…Lewatit Monoplus SP112 is characterized by high thermal stability. The decomposition of sulfonic functional groups followed by the polystyrene-divinylbenzene matrix proceeded at a temperature above 700 K [28]. For Lewatit Monoplus SP112, the total mass loss was 50.35% as the temperature increased to 1230 K. Comparing the TG and DTG curves before and after the La(III) ions sorption, it was noticed that the thermal stability after La(III) loading was reduced.…”

Role of electrostatic interactions in the adsorption of dye molecules by Ti3C2-MXenes

“…10,11 Since Mashtalir et al 12 rst attempted to use titanium carbide (Ti 3 C 2 )-MXenes as potential adsorbents for organic dyes, methylene blue (MB) and acid blue 80, as model aqueous pollutants, a number of studies have been performed employing pristine 13,14 or engineered MXenes as adsorbents. [15][16][17] Integration of the excellent adsorption properties of MXenes with their high aspect ratios, unique catalytic activity, and electronic conductivity has extended the environmental applications of MXenes in several areas such as membrane separation, 18 photocatalytic degradation, 19 and electrochemical sensing of different aqueous pollutants. 20 The textile, paper, dye and dye intermediates, and pharmaceutical industries release more than 10 000 types of organic dyes in the environment.…”

Functionalized chitosan with butylammonium ionic liquids for removal of Cr(VI) from aqueous solution

“…Moreover, it is considered more efficient than other techniques, as it can reduce the concentrations of metals to below 100 ppm and produce less waste. [20][21][22] In the adsorption process, several materials have been extensively used to remove heavy metals, and they include zeolite, kaolinitic, mineral silicates, sawdust, biomass, lignin, chitosan, and other natural polymers. [23][24][25] Nevertheless, most of the conventional materials in their natural form may not provide the required characteristics for adsorption applications.…”

“…The adsorption process is easily manageable, highly efficient, flexible, low‐cost, and widely used in industrial effluent treatments. Moreover, it is considered more efficient than other techniques, as it can reduce the concentrations of metals to below 100 ppm and produce less waste 20–22 . In the adsorption process, several materials have been extensively used to remove heavy metals, and they include zeolite, kaolinitic, mineral silicates, sawdust, biomass, lignin, chitosan, and other natural polymers 23–25 …”