Graphene oxide: Follow the oxidation mechanism and its application in water treatment

Decontamination of organic pollutants from aqueous media using cotton fiber–graphene oxide composite, utilizing batch and filter adsorption techniques: a comparative study

“…2M, GO-nanosheets appear as a light brown layer. 7,14 The cotton ber preformed as a white-colored ber, Fig. 2N.…”

“…Adsorption isotherm. The adsorption isotherm models were studied by Langmuir 27 and Freundlich 28 isotherm, eqn (7) and 8, respectively.…”

“…GO monolayer is one C-atom thick, and it is decorated with a large number of oxygen-rich active groups, such as OH, on the basal plane and COOH edges. 7 Cotton is a suitable substrate material due to its high surface area, mechanical support and low weight. Numerous techniques have been investigated for creating hybridization between GO and the cotton ber, such as dipping and drying, 8,9 layer by layer coating, 10 dipping, 11 and brush-coating and drying.…”

Adsorption of Methylene Blue Dye on Hydrothermally Prepared Tungsten Oxide Nanosheets

“…Fig. 9 shows the relation between the pH in the range (2)(3)(4)(5)(6) and R% of MB-dye. It is clear that the dye removal percent increases by increasing pH or by lowering H + concentration this is due to the increase the negativity of nanoparticles.…”

“…Among the various methods available for water purification, adsorption is a fast, inexpensive and widely applicable technique. Several adsorbents have been investigated to remove MB from aqueous solutions such as, graphene oxide [2], composite [3][4][5], clay [6], adsorption waste [7], activated carbons [8,9], pyrolytic tire char [10] and palygorskite [11].…”