Preparation of gemini surfactant/graphene oxide composites and their superior performance for Congo red adsorption

Abstract

Gemini surfactant/GO composites were prepared for the removal of Congo red dye, and show excellent adsorption capacities and reusabilities.

Efficient Biodegradation of Azo Dyes Catalyzed by the Anthraquinone-2-sulfonate and Reduced Graphene Oxide Nanocomposite

“… 14 , 15 , 21 This may be due to that the GO surface lacks active functional groups, and only π–π interaction happened between the dye molecules and the adsorbents. 14 , 15 On the other hand, the adsorption capacity of azo dyes by the as-prepared AQS@rGO were further decreased. As shown in Figure S2 , the removal efficiencies of AB113, RB5, and MO by AQS@rGO in 72 h of incubation time were less than 1, 2, and 6%, respectively.…”

“… 13 , 14 Preparation and modification of the graphene-based nanocomposites showed great potential in pollution control technologies, especially in adsorption. 15 − 17 On the other hand, anthraquinone-2-sulfonate (AQS) was known to enhance the efficiency of extracellular electron transfer in many previous studiesdue to the active redox properties of the quinoid structure. 1 , 3 , 18 Taking inspiration from this fact, a GO and AQS nanocomposite was prepared by hydrothermal synthesis through noncovalent π–π stacking to activate and stabilize the RM groups grafted on GO.…”

Effects of temperature and polyols on the ciprofloxacin hydrochloride-mediated micellization of sodium dodecyl sulfate

“…Surfactants are widely used in the textile and pharmaceutical industries as solubility enhancers, diluents, emulsifying agents, and stabilizing agents. [12][13][14][15][16] In drug formulation and development as well as drug delivery, the study of the molecular interactions between the surfactant and desired drug is interesting and important because the efficiency of drug release and drug delivery depend on the molecular interactions of the surfactants and drug. The release of sparingly water-soluble drugs is enhanced in the presence of surfactant.…”

Fabrication of Cationic Surfactant (Conventional/Gemini) Functionalized Gr@ZrO2 Nanocomposite with Faster Adsorbability of an Anionic Azo Dye from Aqueous Solution

“…[31] Recently, cationic gemini surfactants (CGS, consisting of two alkyl tails with two head groups covalently connected via a flexible or rigid spacer) are introduced as 2 nd generation modifier. [46,[48][49][50][51] This is due to their various novel properties and interaction with oppositely charged entities. [52][53][54][55][56] CGS functionalized clay/silica has been found more efficient towards adsorption of hydrophobic compounds.…”