Montmorillonite clay/starch/CoFe2O4 nanocomposite as a superior functional material for uptake of cationic dye molecules from water and wastewater

Polysaccharide-Based Composite Hydrogels as Sustainable Materials for Removal of Pollutants from Wastewater

“…Since the environmental pollution with non-biodegradable and toxic dyes occurs all over the world, the development of environmentally friendly composite sorbents has lately received a growing interest. Numerous organic–inorganic composite sorbents, consisting of polysaccharides (CS, ALG, CEL, kCG, Pul), clays (such as bentonite and MMT) [ 150 , 152 , 153 , 154 , 155 ], zeolites [ 141 , 151 ], GO [ 156 , 157 , 158 , 164 ], or magnetic nanoparticles [ 161 , 163 ] have been recently developed and tested for removal of cationic dyes. For example, MB has been efficiently removed by sorption on porous composite hydrogels prepared by intercalation of MMT nanosheets within CMC/CS systems [ 155 ].…”

“…The reusability studies showed a slight decrease in the sorption capacity of ALG/CPL sorbent after the third cycle of sorption/desorption. Ahmadi et al [ 161 ] have reported the preparation of MMT/St/CoFe 2 O 4 nanocomposites as efficient sorbents for MV and MB dyes from synthetic and real wastewater. The impact of various parameters (such as pH, temperature, initial dye concentration, contact time, and sorbent dose) on the dye decontamination has been optimized with the response surface-central composite design method.…”

“…Thus, this sorbent had the capability to decrease the ADMI value from 950 to 245 (i.e., a removal efficiency of 74.21%). In addition, the BOD5, COD, and TOC values after wastewater treatment with MMT/St/CoFe 2 O 4 sorbent have been reduced by 86.92, 77.23, and 70.77%, respectively [ 161 ]. Malachite green (MG), an organic cationic dye widely utilized in the textile and paper industries, has been successfully removed by sorption on porous ALG- g -PAA/graphite hydrogel composites synthesized by graft polymerization of acrylic acid onto ALG and subsequent loading with graphite powder [ 160 ].…”

Cu(ii) immobilized on poly(guanidine-sulfonamide)-functionalized Bentonite@MgFe2O4: a novel magnetic nanocatalyst for the synthesis of 1,4-dihydropyrano[2,3-c]pyrazole

“…[40][41][42] Because of their inherent advantages, clays have been widely used in constructing biomedicine, chemical sensing, heterogeneous catalysts, and dye adsorption. 43 Therefore, synthesizing magnetic clay to develop atomeconomic reactions and reduce negative environmental impact can be a useful process.…”

Study on Photocatalytic Performance of Ag/TiO2 Modified Cement Mortar

“…The low degradation of this wastewater will cause pollution of surface water and groundwater, and adversely affect the health of animals and human beings. Therefore, it is crucial to remove dyes from water pollution [ 39 , 40 , 41 , 42 , 43 ]. Photocatalytic treatment of water pollution is one of the research hotspots.…”