Highly efficient and fast batch adsorption of orange G dye from polluted water using superb organo-montmorillonite: Experimental study and molecular dynamics investigation

Combined molecular dynamics simulations and experimental studies of the removal of cationic dyes on the eco-friendly adsorbent of activated carbon decorated montmorillonite Mt@AC

“…The morphology and surface elements of Mt and Mt@AC are tested by scanning electron microscopy and energy dispersive X-ray spectroscopy. The SEM images of Mt have already been published in our previous work 1,7,39 The morphology of Mt is in the shape of nanosheets confirms the structure of the montmorillonite clay mineral, and EDS analysis shows that the elements silicon, magnesium and oxygen are presented at significant percentages on the surface of Mt. Concerning the Mt@AC composite prepared in this work, the results of SEM and EDS analyzes are presented in Fig.…”

Experimental and modeling investigation of organic modified montmorillonite with octyl quaternary ammonium salt

“…Alkyl quaternary ammonium salts (QAS) are often used as intercalating agents in the organic modification of Mt 8 – 11 . Luo and Zhou et al organic modified Mt by ion exchange reaction, which allowed the QAS cations to enter the interlayer of Mt, effectively expanding the interlayer space, making it from hydrophilic to hydrophobic 12 , 13 , therefore, it has been applied successfully to the adsorption of pollutants and toxic gases 14 – 17 . Through FT-IR, XRD, TG, SEM experimental characterization, Yang et al found that the organic montmorillonite(OMt) is closely related to the experimental QAS concentration, and speculated the QAS loading as well as the possible arrangement of those intercalating cations between the Mt layers 18 , 19 .…”

Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal

“…The point of zero charge (pHpzc) of samples can be determined using a previously reported method [ 7 ]. As can be seen in Figure 8 , the pHpzc of the three adsorbents were all around 9.4.…”

“…Methylene blue (MB) dye is a commonly used organic pollutant, which has high stability and low biodegradability and is thus difficult to degrade [ 1 ]. Various strategies, such as membrane filtration [ 2 ], advanced oxidation process (AOPs) [ 3 ], photocatalysis [ 4 , 5 , 6 ], and adsorption [ 7 ] have been reported for the treatment of organic wastewater. Among them, adsorption and the heterogeneous Fenton-like method, an AOP based on the activation of H 2 O 2 by a solid catalyst, are gaining importance in dye wastewater decontamination in recent excellent reviews due to their advantages of simple operation, high removal efficiency, low operating cost, and good recycling performance [ 8 , 9 ].…”