Removal of metal ions using a new magnetic chitosan nano-bio-adsorbent; A powerful approach in water treatment

Karimi, Fatemeh; Ayati, Ali; Tanhaei, Bahareh; Sanati, Afsaneh L.; Afshar, Safoora; Kardan, Alireza; Dabirifar, Zeynab; Karaman, Ceren

doi:10.1016/j.envres.2021.111753

Cited by 201 publications

(36 citation statements)

References 74 publications

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“…The mathematical equations expressed the adsorption models are illustrated below by Eqs. (3), ( 5) and ( 6) respectively [28,51].…”

Section: Adsorption Isotherm Studiesmentioning

confidence: 99%

“…Activated carbon is one of the most widely used adsorbent for dye removal [17][18][19][20][21]. Biopolymers as chitosane and nanochitosane and their composites were used as a prominent adsorbent for heavy metals and CR removal [22][23][24][25][26][27][28][29][30]. Different nanomaterials and nanocomposites have been used in a variety of science applications such as biomedical and environmental, especially as dye's adsorbants [31][32][33][34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

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Novel Composite Films Based on Acrylic Fibers Waste/Nano-chitosan for Congo Red Adsorption

Selim¹,

Meligi

Abdelhamid

et al. 2022

J Polym Environ

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The current research aimed to use waste to treat waste; to recycling of acrylic fibers waste combined with nano-chitosan for use as an adsorbent to remove Congo red (CR) from wastewater. Acrylic fibers (AF) waste were mixed with nano-chitosan (NCh) with different ratios and converted into films by using phase inversion method to prepare two nanocomposites films coded, AF-NCh and AF-NCh-Epichlorohydrin. The nanocomposites films have been characterized using; Fourier transform infrared, scanning electron microscope, surface area, and thermal analysis. The results revealed successful incorporation of NCh into AF matrix with highly porous structure. Different parameters affecting adsorption efficiency such as, CR concentrations, adsorbent dose, effect of time and pH were employed. Adsorption isotherms and kinetic studies evaluations were applied to assess the adsorption mechanism and rate. Results declared that, the maximum adsorption capacities of AF-NCh and AF-NCh-Epichlorohydrin were 169 and 230 mg/g respectively. The adsorption isotherm and kinetic mechanism obey Langmuir and pseudo second order models. Regeneration of the synthesized composite films were studied for five cycles and showed relative stable reading with high efficiency. Graphical Abstract

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“…The mathematical equations expressed the adsorption models are illustrated below by Eqs. (3), ( 5) and ( 6) respectively [28,51].…”

Section: Adsorption Isotherm Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Composite Films Based on Acrylic Fibers Waste/Nano-chitosan for Congo Red Adsorption

Selim¹,

Meligi

Abdelhamid

et al. 2022

J Polym Environ

View full text Add to dashboard Cite

show abstract

“…Nanomaterials showed many advantages in different branches of science [17][18][19][20][21][22][23][24]. In recent years, nanostructured materials, including metal oxides nanoparticles, have been used to fabricate the modified electrodes for biological, pharmaceutical, energy and environmental purposes [25][26][27][28][29][30][31][32][33].…”

Section: Scheme 1 the Chemical Structure Of Olopatadinementioning

confidence: 99%

Construction of a simple and selective electrochemical sensor based on Nafion/TiO2 for the voltammetric determination of olopatadine

Mehmandoust

Erk

2021

J. Electrochem. Sci. Eng.

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A selective and facile voltammetric method based on titanium dioxide nanoparticles and Nafion (Nafion/TiO2 NPs) on the screen-printed electrode (SPE) was proposed for olopatadine determination. Followed by the synthesis of TiO2 nanoparticles, various methods, including high-resolution transmission electron microscopy (HR-TEM), ultraviolet-visible spectroscopy (UV-Vis), energy-dispersive X-ray (EDX) Raman spectrum, and electrochemical impedance spectroscopy (EIS) were utilized to characterize the nanomaterials. Nafion/TiO2 on the screen-printed electrode (NFN/TiO2/SPE) was used to determine olopatadine in concentration ranges of 0.01 to 0.07 and 0.07 to 14.6 µM with a limit of quantification as low as 7.0 nM, via differential pulse voltammetry technique. The NFN/TiO2/SPE offered a high-performance ability to determine olopatadine in the eye drop sample with satisfactory recovery data of 98.2–99.0 %. Also, the developed electrode showed good reproducibility, repeatability, and high selectivity features. The obtained results indicate that NFN/TiO2/SPE could be utilized as an appropriate candidate for electrochemical olopatadine sensing.

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“…Nanomaterials have garnered a great deal of interest since they may be utilized in a variety of applications, including medical, electronics, energy storage and conversion systems, wastewater treatments, photovoltaic cells, catalysts, etc. [35][36][37][38][39]. Magnetic nanoparticles with the general formula MFe 2 O 4 (M = Fe, Ni, Co, Cu, Mn) are among the most widely used materials in analytical chemistry, medicine and biotechnology.…”

Section: Introductionmentioning

confidence: 99%

Sensitive and Selective Electrochemical Detection of Epirubicin as Anticancer Drug Based on Nickel Ferrite Decorated with Gold Nanoparticles

et al. 2021

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The accurate and precise monitoring of epirubicin (EPR), one of the most widely used anticancer drugs, is significant for human and environmental health. In this context, we developed a highly sensitive electrochemical electrode for EPR detection based on nickel ferrite decorated with gold nanoparticles (Au@NiFe2O4) on the screen-printed electrode (SPE). Various spectral characteristic methods such as Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), ultraviolet-visible spectroscopy (UV-Vis), energy-dispersive X-ray spectroscopy (EDX) and electrochemical impedance spectroscopy (EIS) were used to investigate the surface morphology and structure of the synthesized Au@NiFe2O4 nanocomposite. The novel decorated electrode exhibited a high electrocatalytic activity toward the electrooxidation of EPR, and a nanomolar limit of detection (5.3 nM) was estimated using differential pulse voltammetry (DPV) with linear concentration ranges from 0.01 to 0.7 and 0.7 to 3.6 µM. The stability, selectivity, repeatability reproducibility and reusability, with a very low electrode response detection limit, make it very appropriate for determining trace amounts of EPR in pharmaceutical and clinical preparations.

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Removal of metal ions using a new magnetic chitosan nano-bio-adsorbent; A powerful approach in water treatment

Cited by 201 publications

References 74 publications

Novel Composite Films Based on Acrylic Fibers Waste/Nano-chitosan for Congo Red Adsorption

Novel Composite Films Based on Acrylic Fibers Waste/Nano-chitosan for Congo Red Adsorption

Construction of a simple and selective electrochemical sensor based on Nafion/TiO2 for the voltammetric determination of olopatadine

Sensitive and Selective Electrochemical Detection of Epirubicin as Anticancer Drug Based on Nickel Ferrite Decorated with Gold Nanoparticles

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