Chitosan film loaded with silver nanoparticles—sorbent for solid phase extraction of Al(III), Cd(II), Cu(II), Co(II), Fe(III), Ni(II), Pb(II) and Zn(II)

Djerahov, Lubomir; Vasileva, Penka; Karadjova, Irina; Kurakalva, Rama Mohan; Aradhi, Keshav Krishna

doi:10.1016/j.carbpol.2016.03.080

Cited by 49 publications

(17 citation statements)

References 49 publications

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“…Djerahov et al prepared a stable AgNPs colloid by dispersing the AgNPs sol in chitosan solution at appropriate ratio. The obtained films showed efficient sorbent for separation and enrichment of Al(III), Cd(II), Cu(II), Co(II), Fe(III), Ni(II), Pb(II), and Zn(II) . Also, compounds synthesized from the condensation of a primary amino compound with aldehydes or ketones (Schiff bases) can be used to form ion complexes.…”

Section: Introductionsupporting

confidence: 89%

Chitosan loaded with silver nanoparticles, CS‐AgNPs, using thymus syriacus, wild mint, and rosemary essential oil extracts as reducing and capping agents

AL-Shnani

Al-Haddad

Karabet

et al. 2017

J of Physical Organic Chem

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The present study describes the green method for the preparation of chitosan loaded with silver nanoparticles (CS-AgNPs) in the presence of 3 different extracted essential oils. The essential oils play dual roles as reductant and capping agents. The reducing power and DPPH (2,2-diphenyl-1-picrylhydrazyl) assay for the 3 essential oils-Thymus syriacus (T), wild mint (M), and rosemary (R)-have been reported. The preparation of CS-AgNPs was performed by 2 steps. The 3 previously extracted essential oils have been used as reducing and capping agent in the first step, while in the second step, silver nanoparticles were integrated in chitosan. The integration of AgNPs in the structure of chitosan was confirmed by ultraviolet-visible, Fourier transform infrared spectroscopy, scanning electron microscopy techniques, and energy dispersive X-ray. Surface plasmon resonance confirmed the formation of CS-AgNPs with maximum absorbance at λ max between 405 -410 and 410 -430 nm for colloidal and films of CS-AgNPs, respectively. The intensity of bands at 3408 cm −1 in the fourier transform infrared spectroscopy measurements was decreased substantially and shifted slightly to lower frequency (Δυ = 43 cm −1 ). Scanning electron microscopy shows a spherical morphology of AgNPs with size of 62 nm for both colloidal and film samples, and energy dispersive X-ray analysis shows peaks confirming AgNPs formation.

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Section: Introductionsupporting

confidence: 89%

Chitosan loaded with silver nanoparticles, CS‐AgNPs, using thymus syriacus, wild mint, and rosemary essential oil extracts as reducing and capping agents

AL-Shnani

Al-Haddad

Karabet

et al. 2017

J of Physical Organic Chem

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“…Nanostructured particles, especially metal nanoparticles (NPs), have attracted much attention over the last decade (Djerahov, Vasileva, Karadjova, Kurakalva & Aradhi, 2016;Kang et al, 2016;Nazirov, Pestov, Privar, Ustinov, Modin & Bratskaya, 2016;Sadanand, Rajini, Rajulu & Satyanarayana, 2016), and have also been widely studied in different fields from materials science and engineering to biomedical applications (Li, Liu & Liu, 2012;Tada, Kiyonaga & Naya, 2009;Walekar et al, 2014). Among these applications, the use of catalytic metal NPs in waste water treatment is of particular interest because of their unique electronic properties and versatile catalytic activities (Daniel & Astruc, 2004;Narayanan & El-Sayed, 2005;Zheng & Stucky, 2006).…”

Section: Introductionmentioning

confidence: 99%

Cellulose nanocrystal/hexadecyltrimethylammonium bromide/silver nanoparticle composite as a catalyst for reduction of 4-nitrophenol

Long

2017

Carbohydrate Polymers

108

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“…new alternatives for their treatment [5,6]. There are several methods available to detect trace metal ions such as chemical precipitation/coprecipitation [7], liquid-liquid extraction [8], and solid phase extraction (SPE) [9].…”

Section: Nano-chamomile Waste As a Low-cost Biosorbent For Rapid Remomentioning

confidence: 99%

“…The simple Langmuir [43,44,47] isotherm equation (Eq. 5) is 1/q e = 1/q m + 1/q m bC e (linear form) (5) where q e (mmolg −1 ) is the equilibrium adsorption capacity at the equilibrium concentration C e (mmolml −1 ), q m (mmol g −1 ) is the maximum adsorption capacity on a Langmuir monolayer and b (mlmmol −1 ) is the Langmuir constant attributed to the energy of adsorption, and could be estimated from the intercept (1/ q m b) and slope (1/q m ) of a linear plot between 1/q e and 1/C e . The results revealed that the monolayer adsorption was the likely mechanism of metal sorption onto the NCW biosorbent and the available binding sites were fully saturated with the metal ions (Table 2).…”

Section: Langmuir Isothermmentioning

confidence: 99%

Nano-chamomile waste as a low-cost biosorbent for rapid removal of heavy metal ions from natural water samples

2019

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I N this study, we report the feasibility of using nano chamomile waste (NCW) as a selective solid phase extractor for heavy metal ions. The experimental parameters including pH (1.0-6.0), metal ion concentration (10-100 µmole), adsorbent dose (10-1000 mg), and biosorption time (0.5-90 min) were altered by using the batch technique to optimize the maximum capacity of this new biosorbent. The experimental data by NCW agreed with both Freundlich and Langmuir models (R 2 =0.999) with maximum uptake capacities of 621.6 mgg-1 (3 mmolg-1) for Pb (II), 163.9 mgg-1 (2.58 mmolg-1) for Cu (II), and 522.7 mgg-1 (9.36 mmolg-1) for Fe (III). In addition, the values of metal uptake as a function of time agreed with the kinetic pseudosecond-order model. The kinetic experiments confirmed the fast accessibility of metal ions to the biosorbent surface resulting in equilibrium within 30 s. NCW was also characterized using FT-IR spectra and the crystallinity of the biosorbent was characterized using X-ray diffraction (XRD). The morphological characterization and particle size of NCW were obtained using SEM and TEM, respectively. Our method was investigated to measure Pb (II), Cu (II), and Fe (III) with a certain spiked amounts in natural water samples such as groundwater (GW), drinking tap water (DTW), natural drinking water (NDW), Nile River water (NRW), seawater (SW), and wastewater (WW). A removal efficiency of ≥98% was obtained for all collected samples using batch experiments and without matrix interferences. Considering its cheap source, simple, economic and fast uptake process, NCW can be used as a low-cost nano biosorbent for the removal of metal ions from natural water samples.

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Chitosan film loaded with silver nanoparticles—sorbent for solid phase extraction of Al(III), Cd(II), Cu(II), Co(II), Fe(III), Ni(II), Pb(II) and Zn(II)

Cited by 49 publications

References 49 publications

Chitosan loaded with silver nanoparticles, CS‐AgNPs, using thymus syriacus, wild mint, and rosemary essential oil extracts as reducing and capping agents

Chitosan loaded with silver nanoparticles, CS‐AgNPs, using thymus syriacus, wild mint, and rosemary essential oil extracts as reducing and capping agents

Cellulose nanocrystal/hexadecyltrimethylammonium bromide/silver nanoparticle composite as a catalyst for reduction of 4-nitrophenol

Nano-chamomile waste as a low-cost biosorbent for rapid removal of heavy metal ions from natural water samples

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