Methylene blue adsorption by cotton grafted with succinic anhydride

Facile Synthesis of Band Gap-Tunable Kappa-Carrageenan-Mediated C,S-Doped TiO2 Nanoparticles for Enhanced Dye Degradation

“…The reduction of MB to leuco MB (LMB) can be quantified by tracking the reduction in absorption in the UV–visible spectrum at 664 nm. 63 The time-dependent electronic absorption spectrum of MB under UV light exposure ( Figures 13 a and 13 b) demonstrates the minimal reduction in the absence of the biosynthesized nanocatalyst (dye degradation 1.8%). However, in the presence of κC-TiO 2 , particularly those synthesized with 0.2% κ-carrageenan, a remarkable degradation of MB occurs, with over 99% achieved after just 20 min of UV light exposure.…”

“…MB exhibits characteristic absorption bands for both oxidized and reduced states. The reduction of MB to leuco MB (LMB) can be quantified by tracking the reduction in absorption in the UV–visible spectrum at 664 nm . The time-dependent electronic absorption spectrum of MB under UV light exposure (Figures a and b) demonstrates the minimal reduction in the absence of the biosynthesized nanocatalyst (dye degradation 1.8%).…”

Chemical Functionalization of Cellulosic Materials — Main Reactions and Applications in the Contaminants Removal of Aqueous Medium

“…The cotton fibers and other cellulosic derivatives have an improvement about 40% in the adsorption of blue methylene cationic dye (Figure 3(a)) after the chemical modification with succinic anhydride. The presence of carboxyl groups in biomaterials means significant rise in the adsorption, which can result from electrostatic interactions among these groups and dye reactive groups [24].…”

ZrMOX Particles for Enhanced Removal of Methyl Orange from Wastewater: Preparation, Characterization, and Adsorption Study

“…MOF [17] such as UiO-66-NH 2 showed excellent adsorption ability to methyl orange and methylene blue, and the maximum adsorption capacities were as high as 148.4 and 549.6 mg•g -1 , respectively. Metal composite oxides [9,18] and some natural products [19][20][21] also showed excellent adsorption performance for dye absorption. However, there are many problems in adsorbents such as deficient adsorption capacity, poor regeneration performance, and loss of active components.…”