Chemically modified organic/inorganic nanoporous composite particles for the adsorption of reactive black 5 from aqueous solution

Nematollahzadeh, Ali; Shojaei, Akbar; Karimi, Mehdi

doi:10.1016/j.reactfunctpolym.2014.11.001

Cited by 48 publications

(19 citation statements)

References 60 publications

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“…UiO‐66 and NH 2 ‐UiO‐66 were chosen as adsorbents because of their high thermal stability, high chemical resistance toward polar solvents such as water, several alcohols, and organic solvents, easy functionalization and high capacity for drug adsorption . In related to our previous work to design and preparation of various type of nanoparticles for drug delivery and adsorbent systems . CUR was chosen as model drug because of its interesting properties.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of UiO‐66 metal organic framework as an effective sorbent for Curcumin's overdose

Molavi

Zamani

Aghajanzadeh

et al. 2018

Applied Organom Chemis

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111

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Metal organic frameworks (MOFs) UiO-66 (UiO stands for University of Oslo) and NH 2 -UiO-66 were prepared and characterized as sorbent (antidotal agents) for curcumin (CUR) adsorption. The structure of products were characterized by X-ray powder diffraction (XRD), Field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), Attenuated Total Reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), and N 2 adsorption-desorption measurements. FESEM showed NH 2 -UiO-66 displayed symmetrical crystals with triangular base pyramid morphology, with the particle size around 100 nm and uniform size distribution. Adsorption capacities of CUR/MOFs with different mass ratios in the feed were investigated in the present study, and this investigation revealed that when the CUR/MOFs with mass ratio was around 0.4, the absorption capacity of NH 2 -UiO-66 had tended to maximum. Although, functionalization reduced the specific surface area and free volume, introducing polar amine groups could improve the affinity of NH 2 -UiO-66 respect to CUR.Kinetic studies showed that the kinetic data are well fitted with the pseudo-second-order model. MTT assay revealed that MOFs at the concentration range of 0-560 μg/ml had no cytotoxic effect on the Human Foreskin Fibroblast normal cell line (HFF-2). These results suggest that these MOFs could be safe as sorbent for adsorb CUR from the body.

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Section: Introductionmentioning

confidence: 99%

Evaluation of UiO‐66 metal organic framework as an effective sorbent for Curcumin's overdose

Molavi

Zamani

Aghajanzadeh

et al. 2018

Applied Organom Chemis

Self Cite

111

View full text Add to dashboard Cite

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“…[2] In particular, reactive dyes are frequently used as effective colorants due to their capability to covalently bind to cellulosic fibres. [3] However, their extended aromatic structures retard their degradation, ensuring that their environmental release causes extreme ecological damage. [4] C.I.…”

Section: Introductionmentioning

confidence: 99%

Chitosan hydrogels for targeted dye and protein adsorption

Boardman

Lad

Green

et al. 2017

J of Applied Polymer Sci

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There is an urgent requirement to devise and develop highly-effective materials for the purification of industrial wastewater. Coloured effluents are particularly problematic due to their toxicity in plants, aquatic organisms and animals, dictating that polymeric adsorbents are highly sought for their capture.Chitosan hydrogels are a cost-effective substrate for the adsorption of dye molecules as they are contain a biopolymeric gelator that can form hydrogels with a polymer content as low as 3% by mass. Such materials are also highly suited for use within a biomedical context as carrier vehicles for the encapsulation and delivery of protein macromolecules, due to their hydrophilic nature. We disclose the capability chitosan-based hydrogels to non-covalently adsorb both reactive and disperse dye molecules, and a model anionic protein from aqueous solution. The materials generated offer both a platform for dye removal from industrial wastewater, and for the encapsulation and pH-mediated release of protein macromolecules.

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“…The bands observed at 1731 cm -1 is due to the vibration of -C=O [28]. And the symmetric stretching vibration of the silicon oxygen (-Si-O-Si-) group appears at 1134 and 761 cm -1 [25]. It can be seen that the characteristic peaks at 1638 cm -1 for -C=C-group and 1058 cm -1 or 959 cm -1 for -Si-O-C-in monomers are disappeared, respectively.…”

Section: Resultsmentioning

confidence: 98%

“…Kim et al [24] synthesized the phenyl-functionalized mesoporous silicas (Ph-MSs) as an adsorbent for bisphenol A removal from aqueous solution via co-condensation method. Lee et al [25] adopted a chemically modified polyacrylamide/silica nanoporous composite adsorbent to removing the reactive black 5 (RB5) azo dye from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

A novel polymeric adsorbent by a self-doped manner: synthesis, characterization, and adsorption performance to phenol from aqueous solution

et al. 2016

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The organic-inorganic self-doped poly (vinyltrimethoxy silane-ethylene glycol dimethacrylate) (VE resin) was synthesized by solution polymerization, hydrolysis and dehydration condensation. In this method, ethylene glycol dimethacrylate (EGDMA) was used as cross-linked reagent to form a three-dimensional network structure. Then, the system was prepared by radical polymerization in the presence of the hydrolysis of -OCH 3 and the dehydration condensation of Si-OH. The maximum adsorption capacity 75.68 mg g -1 was achieved when pH was 6, the contact time 60 min, the adsorbent dose 0.1 g, the initial concentration 3000 mg L -1 and the temperature 293 K. The adsorption kinetics followed the pseudo-second-order kinetic model, and the intra-particle diffusion was but not the only rate-limiting step. Adsorption isotherms of phenol were linearly correlated and found to be well represented by the Freundlich model. Thermodynamic parameters such as changes in the enthalpy (DH), free energy (DG) and entropy (DS) indicated that the adsorption process of phenol on VE resin were physical and exothermic. After four regeneration recycles, the adsorption capacity of VE resin remained at 95.04 % of the initial value, which illustrated that it possessed good regeneration capacity.

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Chemically modified organic/inorganic nanoporous composite particles for the adsorption of reactive black 5 from aqueous solution

Cited by 48 publications

References 60 publications

Evaluation of UiO‐66 metal organic framework as an effective sorbent for Curcumin's overdose

Evaluation of UiO‐66 metal organic framework as an effective sorbent for Curcumin's overdose

Chitosan hydrogels for targeted dye and protein adsorption

A novel polymeric adsorbent by a self-doped manner: synthesis, characterization, and adsorption performance to phenol from aqueous solution

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