Synthesis and characterization of magnetic β-cyclodextrin–chitosan nanoparticles as nano-adsorbents for removal of methyl blue

Fan, Lulu; Zhang, Ying; Luo, Chuannan; Lü, Fang; Qiu, H.; Sun, Min

doi:10.1016/j.ijbiomac.2011.12.016

Cited by 183 publications

(60 citation statements)

References 33 publications

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“…3b. Also, the pseudo-second-order model is defined in the lineal form by the following equation [7]:…”

Section: Adsorption Kinetics Of Pva-ss-cd Compared With Pva-cd and Pva-cmentioning

confidence: 99%

“…Water that has been contaminated by dyes poses a tremendous threat to ecological and human health, since most of these dyes are not degradable because they resist aerobic digestion and are stable to heat, light, and oxidizing agents [1][2][3]. Various methods, including coagulation, electrochemical, photocatalytic degradation, adsorption and ultra-filtration have been widely investigated for treating dye polluting wastewater [4][5][6][7][8]. Among these treatment processes, adsorption is considered favorable because of its low cost and easy access [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Water-insoluble sericin/β-cyclodextrin/PVA composite electrospun nanofibers as effective adsorbents towards methylene blue

Zhao

Wang

et al. 2015

Colloids and Surfaces B: Biointerfaces

111

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“…3b. Also, the pseudo-second-order model is defined in the lineal form by the following equation [7]:…”

Section: Adsorption Kinetics Of Pva-ss-cd Compared With Pva-cd and Pva-cmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Water-insoluble sericin/β-cyclodextrin/PVA composite electrospun nanofibers as effective adsorbents towards methylene blue

Zhao

Wang

et al. 2015

Colloids and Surfaces B: Biointerfaces

111

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“…The extent of uranium sorption decreases significantly with the increase of contact time, which is dependent on the decrease in the number of vacant sites on the surfaces of resin. Besides, after the lapse of some time, the remaining free surface sites are difficult to occupy due to the repulsive forces between the solute molecules on the solid surface and the bulk phase and this trend indicates that the sorbent is saturated at this level 41,42 , therefore 30 min shaking time was found to be appropriate and used in all subsequent experiments. …”

Section: Effect Of Phmentioning

confidence: 99%

Application of Commercial Adsorbent for Rare earth elements - Uranium Mutual Separation and Purification

et al. 2017

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The treatment of rare earths sulfate liquor contaminated with traces of uranium as radioactive contaminates utilizing lewatit mono plus M500 was studied. Adsorption behavior was studied by batch experiments to determine the optimum conditions for uranium removal. The obtained equilibrium data were found to be satisfactory fitted with Langmuir isotherm and the second order rate equation. Also, elution process was achieved by 2M NaCl/1M HCl solution and the reuse of sorbent remains appreciable. A marketable pure product of rare earth oxide was prepared in addition to pure sodium diuranate containing total uranium content of the starting REEs cake.

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“…As a suitable biopolymer, CTS had effective adsorbability for almost all classes of dyes [20][21][22] because of its high content of amino and hydroxyl functional group [23]. And then, surface modification was done for magnetic CTS composite through N,N-bis (carboxymethyl) glutamic acid (GLDA) by taking 1-ethyl-3-[3-dimethylaminopropyl] carbodiimide/ N-hydroxysuccinimide (EDC/NHS) as cross-linker (Fig.…”

Section: Introductionmentioning

confidence: 99%

Methylene Blue Adsorption by Novel Magnetic Chitosan Nanoadsorbent

Zhu

Zhang

Yan

2016

J. of Wat. & Envir. Tech.

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A novel magnetic nanoadsorbent (magnetic chitosan modified by N,N-bis (carboxymethyl) glutamic acid, G-MCTS for short) was prepared by covalent binding of tetrasodium of N,N-bis (carboxymethyl) glutamic acid onto the surface of chitosan-coated Fe 3 O 4 nanoparticles. The adsorbent was characterized by scanning electron microscopy, infrared spectrum, vibrating sample magnetometer and X-ray powder diffractometer. It was found that G-MCTS had a spherical structure with a particle size ranging from 100 − 150 nm and a saturation magnetization value of 21 emu/g. Meanwhile, the adsorption performances of G-MCTS were tested with adsorption of methylene blue. Correspondingly, the adsorption effect factors (initial concentration, solution pH, contact time and temperature), adsorption kinetics, isotherms and adsorption thermodynamics were investigated in detail. Results showed that the adsorption could reach equilibrium within 30 min, besides, the adsorption kinetics accepted the pseudo-second-order kinetic model, and the adsorption isotherm data fit with Freundlich model as well as Langmuir model. More importantly, the maximum adsorption capacity was 3.3 g/g obtained by Langmuir model and the adsorption capacity was more than 90% of the initial saturation adsorption capacity after being used for four times. All of these results indicated that, G-MCTS can serve as an effective adsorbent for the adsorption of methylene blue.

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Synthesis and characterization of magnetic β-cyclodextrin–chitosan nanoparticles as nano-adsorbents for removal of methyl blue

Cited by 183 publications

References 33 publications

Water-insoluble sericin/β-cyclodextrin/PVA composite electrospun nanofibers as effective adsorbents towards methylene blue

Water-insoluble sericin/β-cyclodextrin/PVA composite electrospun nanofibers as effective adsorbents towards methylene blue

Application of Commercial Adsorbent for Rare earth elements - Uranium Mutual Separation and Purification

Methylene Blue Adsorption by Novel Magnetic Chitosan Nanoadsorbent

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