Diethylaminoethyl dextran/epichlorohydrin (DEAE-D/ECH) hydrogel as adsorbent for murexide

A Schiff base tin (IV) compound was synthesized by reactions between 2-((E)-(p-tolylimino)methyl)phenol (TIMPH) and butyltin trichloride in 2:1 mole ratio in ethanol at room temperature. [SnBuCl3(TIMPH)2] was characterized by FT-IR, 1H-NMR, 13C-NMR spectroscopy, elemental analysis, and mass spectrometry. Optimization of Murexide dye from aqueous solution was performed by examining; effect of contact time, initial pH, adsorbent amount, initial dye concentration and temperature on the tin adsorbent. The highest adsorption recovery value of was 98.00% and the adsorption capacity was 248.8 mg/g at the end of 20 minutes at 100 mg/L dye concentration while the temperature was 25°C and the pH was 3. Langmuir, Freundlich, and Temkin adsorption isotherms were calculated at 25 ºC. The highest R2 value was found 0.099 for the Langmuir isotherm model. The adsorption characteristics of murexide dye showed that adsorption kinetic obeyed the pseudo-second-order kinetics, and the thermodynamic data suggested the spontaneous and exothermic process.

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“…And the rise in the initial concentration of dye could be caused by a reduction in the driving force of the concentration gradient [25,26].…”

Section: Effect Of Initial Dye Concentration On Adsorptionmentioning

confidence: 99%

Removal of Murexide Dye from Aqueous Solution Using A Novel Schiff Base Tin(IV) Compound

Bozbaş

Aras

Karabulut

et al. 2021

Preprint

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“…Porous carbon materials have a highly developed pore structure [27], a large specific surface area [28], strong mechanical properties, high chemical stability, and many excellent physical properties [29,30], such as electrical conductivity, thermal conductivity, and thermal stability. Porous carbon materials can adsorb dyes efficiently as well as play a catalytic function in the degradation of dyes [31], which is a kind of adsorbent material that can be widely used in dye wastewater purification and has become popular among researchers in recent years [32,33]. The adsorption effect of porous carbon materials on dyes is mainly influenced by their pore structure and surface heteroatoms.…”

Section: Introductionmentioning

confidence: 99%

Simple Preparation of Lignin-Based Phenolic Resin Carbon and Its Efficient Adsorption of Congo Red

Su,

Li,

Wang

et al. 2023

Water

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Biomass porous carbon is a low-cost, environmentally friendly material with no secondary pollution and has great potential in the field of dye pollutant adsorption. In this work, we used lignin, a renewable resource abundant in nature, to completely replace phenol and develop a lignin-based phenolic resin carbon (LPFC) adsorbent with high dye removal capacity, high recyclability, and low production cost. The samples were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and Raman spectroscopy. Then the effects of adsorbent dosage (1 g/L, 2 g/L, 3 g/L, 4 g/L, and 5 g/L), temperature (30 °C, 45 °C, and 60 °C), initial dye concentration (100, 200, 300, 400, 500, 600, 700, and 800 mg/L), and pH (3, 4, 6, 8, 10, and 12) on the adsorption capacity were investigated during the adsorption process. The experimental results showed that the pore structure of LPFC was richer and more graphitized than that of phenolic resin carbon (PFC). The adsorption performance of LPFC on CR was better than that of PFC. The adsorption characteristics of LPFC were investigated from the adsorption isotherm and kinetic perspectives. The Langmuir isothermal adsorption model and the proposed second-order kinetic model were able to fit the adsorption data better. The adsorption process preferred monolayer adsorption, and the proposed second-order model predicted a maximum adsorption capacity of 425.53 mg/g. After five cycles, the removal of CR by LPFC only decreased from 92.1 to 79.2%. It can be seen that LPFC adsorbents have great potential in the field of wastewater treatment and can effectively realize the high-value application of lignin.

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“…8,[12][13][14][15] Their combination with oppositely charged surfactants can provide systems characteristic of their biocompatibility, biodegradability and solubilization ability. [13][14][15][16][17][18][19][20][21][22][23][24] Perhaps the rst study on gelation in hyaluronan-alkyltrimethylammonium halide systems was published by Thalberg and Lindman. 13 They conrmed the formation of mixed micelles between surfactant molecules and carboxylate groups of hyaluronan as well as solubilization of hydrophobic dye Orange OT in prepared systems.…”

Section: Introductionmentioning

confidence: 99%

“…21 Similarly, the solubility of dye murexide was increased in dextran-epichlorohydrin hydrogel. 22 In our previous work, 8 the hyaluronan and cationized dextran were used as naturally occurring polyelectrolytes. They were combined with opposite charged surfactants: cationic carbethopendecinium bromide (septonex) for hyaluronan and anionic sodium dodecyl sulfate (SDS) for dextran.…”

Section: Introductionmentioning

confidence: 99%

Diffusion of dyes in polyelectrolyte-surfactant hydrogels

et al. 2022

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Diethylaminoethyl dextran/epichlorohydrin (DEAE-D/ECH) hydrogel as adsorbent for murexide

Cited by 13 publications

References 34 publications

Removal of Murexide Dye from Aqueous Solution Using A Novel Schiff Base Tin(IV) Compound

Removal of Murexide Dye from Aqueous Solution Using A Novel Schiff Base Tin(IV) Compound

Simple Preparation of Lignin-Based Phenolic Resin Carbon and Its Efficient Adsorption of Congo Red

Diffusion of dyes in polyelectrolyte-surfactant hydrogels

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