Preparation of magnetic multi-walled carbon nanotubes for an efficient adsorption and spectrophotometric determination of amoxicillin

Fazelirad, Hamid; Ranjbar, Mehdi; Taher, Mohammad Ali; Sargazi, Ghasem

doi:10.1016/j.jiec.2014.04.028

Cited by 84 publications

(24 citation statements)

References 11 publications

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“…13 Adsorption has also been used as an effective and simple alternative and materials such as wheat grains, 14 organoclays, 15,16 and chitosan based material, 17 which are some examples of adsorbents used for amoxicillin removal. Carbon-based materials, such as activated carbon, [18][19][20] magnetic multi-walled carbon nanotube, 21 magnetic activated carbon, 17 carbon nanofibers, 22 graphene-based materials, 23 carbon nanotubes 24,25 and graphene oxide 26 have been extensively investigated for the antibiotic adsorption. However, several of these works suggest that the relatively large β-lactam antibiotic molecules do not effectively access the narrow micropores of activated carbons.…”

Section: Introductionmentioning

confidence: 99%

Controlled Dehydration of Fe(OH)3 to Fe2O3: Developing Mesopores with Complexing Iron Species for the Adsorption of β-Lactam Antibiotics

Pinto¹,

Lanza²,

Ardisson³

et al. 2018

J. Braz. Chem. Soc.

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In this work, efficient adsorbents for β-lactam antibiotics based on mesoporous iron oxide containing surface [FeO x (OH) y ] sites were produced by controlled precipitation of iron hydroxide and thermal treatment at 150, 200, 300 and 450 °C (150FeOH, 200FeOH, 300FeOH and 450FeOH, respectively). Mössbauer, X-ray diffraction (XRD), thermogravimetry-mass spectrometry (TG-MS), Fourier transform infrared spectroscopy (FTIR), Raman, Brunauer-Emmett-Teller method (BET), scanning electron microscopy (SEM) and elemental analyses showed that the temperature caused a gradual dehydroxylation process with a significant increase of the mesoporous surface area (e.g., 114-142 m 2 g-1 with 46-59% mesopores, i.e., 0.04-0.09 cm 3 g-1) and approximate compositions of FeO 1.06 (OH) 0.89 for 150FeOH up to FeO 1.38 (OH) 0.26 for 450FeOH. The material 150FeOH showed high adsorption capacities of ca. 42 and 58 mg g-1 for amoxicillin and ceftriaxone, respectively. Experiments assessing the effect of NO 3-, Cl-, competitive PO 4 3adsorption and H 2 O 2 decomposition suggest that the [FeO x (OH) y ] surface sites located in the mesopores are involved in the efficient adsorption by complexation of the β-lactam antibiotics.

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Section: Introductionmentioning

confidence: 99%

Controlled Dehydration of Fe(OH)3 to Fe2O3: Developing Mesopores with Complexing Iron Species for the Adsorption of β-Lactam Antibiotics

Pinto¹,

Lanza²,

Ardisson³

et al. 2018

J. Braz. Chem. Soc.

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“…[22,23] Amoxicillin is commonly used in human and veterinary medicine for the treatment of bacterial infections caused by Gram-negative and Gram-positive microorganisms, as well as good absorption and penetration into tissues. [24] AMOX has a good oral bioavailability that is not affected by the concomitant ingestion of food. The oral bioavailability of AMOX in pigs ranges from 28% to 33% and the drug freely distributes to lymph nodes and to both bronchial secretions and mucous.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterisation and sustained release properties of layered zinc hydroxide intercalated with amoxicillin trihydrate

Nabipour

Sadr

Thomas

2015

Journal of Experimental Nanoscience

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The intercalation of amoxicillin trihydrate (AMOX) into layered zinc hydroxide (LZH) has been achieved via ion-exchange method. The resulted nanocomposite (AMOX-LZH) has been thoroughly characterised by a number of techniques including powder X-ray diffraction (PXRD), FT-IR spectroscopy, TGA/DTG analysis and scanning electron microscopy (SEM). The PXRD results showed that the gallery height of LZH was expanded from 9.57 to 11.97 A , indicating that the AMOX anions were successfully intercalated into the interlayer space of LZHs. The increased thermal stability of nanocomposite was confirmed by TGA/ DTG analyses. Improved antibacterial activity and minimum inhibitory concentration of AMOX-LZH nanocomposite was evaluated against Grampositive bacteria Staphylococcus aureus, Klebsiella pneumonia and Gram-negative Escherichia coli using the disk diffusion technique. The sustained release of amoxicillin drug from the AMOX-LZH nanocomposite was also verified.

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“…The highest uptake occurred at about pH = 6.4 in presence of a high adsorbent dosage. The bonding between amoxicillin and adsorbent was due to the van der Waals force and adsorption conformed to Langmuir isotherm (21).…”

Section: Introductionmentioning

confidence: 67%

Preparation of Magnetic Multi-Walled Carbon Nanotubes to Adsorb Sodium Dodecyl Sulfate (SDS)

Rafiee

Samadi

2017

Avicenna J Environ Health Eng

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Surfactants are one of the main groups of pollutants released into aqueous solutions due to human activities and their harmful effects have been proven on human. In this study, first, magnetic multi-walled carbon nanotubes (MMWCNTs) were synthesized and then, the effects of operating parameters such as surfactant concentration, adsorbent dosage, and pH values were analyzed on the adsorption process. MMWCNTs were characterized by means of X-ray diffraction (XRD) analysis and fourier transform infrared spectroscopy (FTIR). The optimal adsorption conditions were achieved at initial pH = 4.6, adsorbent concentration = 0.5 g/L, and initial SDS concentration = 15 mg/L. In addition, the equilibrium of sorption reached after 120 min and the maximum capacity of SDS for monolayer coverage was found to be 61 mg/g at 25°C. Kinetic studies were performed under optimal conditions and the sorption kinetics was described using the pseudo-second-order kinetic model. The experimental data were studied using Freundlich, Langmuir, and Sips models. Finally, the experimental data were fitted reasonably by Langmuir isotherm. The results demonstrated that MMWCNTs with respect to their high adsorption capacity, relatively low equilibrium time, and capability to be separated from aqueous solutions (after adsorption) could be applied to wastewater treatment.

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Preparation of magnetic multi-walled carbon nanotubes for an efficient adsorption and spectrophotometric determination of amoxicillin

Cited by 84 publications

References 11 publications

Controlled Dehydration of Fe(OH)3 to Fe2O3: Developing Mesopores with Complexing Iron Species for the Adsorption of β-Lactam Antibiotics

Controlled Dehydration of Fe(OH)3 to Fe2O3: Developing Mesopores with Complexing Iron Species for the Adsorption of β-Lactam Antibiotics

Synthesis, characterisation and sustained release properties of layered zinc hydroxide intercalated with amoxicillin trihydrate

Preparation of Magnetic Multi-Walled Carbon Nanotubes to Adsorb Sodium Dodecyl Sulfate (SDS)

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