Synthesis and application of 3D graphene nanocomposite for the removal of cationic dyes from aqueous solutions: Response surface methodology design

A comprehensive review on the environmental applications of graphene–carbon nanotube hybrids: recent progress, challenges and prospects

“…With rapid industrial development, water pollution resulting from organic dyes discharged from textile, leather, food, plastics, paper, cosmetic and pharmaceutical industries without adequate treatment processes, turned to a serious problem affecting aquatic life, our health and ecosystem because of their colour and high chemical oxygen demand (81,82). Release of exceedingly coloured waste interferes with transmission of light, thus upsets biological processes which cause harm to aquatic systems.…”

Microwave assist sorption of crystal violet and Congo red dyes onto amphoteric sorbent based on upcycled Sepia shells

“…The methodology relied on potential implementation of microwave-enforced sorption (MES) technique was evaluated by using microwave apparatus which is a household oven (CLATRONIC MWG 756 E) model operates with rated power output of 800 watt, frequency of 2.45 GHz and cavity volume of 20 L. Preliminary experiment related to individual effect of microwave radiation on both CV and CR degradation reaction in the absence of SSBC composite was performed. It was carried out by introducing 20 mL of both dyes solutions (C 0 : 20 mg L −1 ) separately to microwave radiation without addition of SSBC sorbent at adjusted varied time interval (5,10,15,20,25,30,35,40,45,50, 55 and 60 s) at 800 watt. The degradation efficiency (%) of dye can be determined through the following equation:…”

“…It has many advantages such as simplicity, easy operation, low cost and high efficiency. Various sorbents like biochar [42], modified clay [43], chitosan [44], graphene [45], agriculture wastes [46][47][48], nanocomposites [49] and hydrogels [50] were used for dyes removal.…”

Fabrication of novel porous ZIF-67/PES composite microspheres and the efficient adsorption of triphenylmethane dyes from water

“…2,3 MG and CV are not only utilized for dyeing silk, leather, and paper, but they also play an important part in treating parasitic, fungal, and bacterial infections of fish and fish eggs. 4 The illegal use of MG, FA, and CV dyes is becoming a serious environmental problem given the low production costs of these dyes. The removal of pernicious dyes has become a significant policy in many countries.…”