Evaluation of Cephalexin and Amoxicillin removal from aqueous media using activated carbon produced from Aloe vera leaf waste

Hashemzadeh, Farzad; Ariannezhad, Maryam; Derakhshandeh, Seyed Hamed

doi:10.1016/j.cplett.2022.139656

Cited by 28 publications

(22 citation statements)

References 42 publications

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“…The sharp peaks observed at 2θ = 29.38° and 43.12° in Fig. 4 correspond to the presence of graphite, silica, and the amorphous carbon nature, primarily due to the low graphite content 44 .…”

Section: Xrd Analysismentioning

confidence: 92%

“…The broad peak observed at 3444 cm ¹ in spectrum 1a corresponds to the stretching vibration of OH bonds. This phenomenon is attributed to the presence of carboxylic acid and alcohol groups in cellulose or residual water 44 . Additionally, the peak observed in the 1576 cm ¹ region is associated with the stretching vibration of C = O bonds, speci cally for carbonyl and carboxylic acid groups.…”

Section: Ft-ir Spectroscopymentioning

confidence: 99%

“…Additionally, the peak observed in the 1576 cm ¹ region is associated with the stretching vibration of C = O bonds, speci cally for carbonyl and carboxylic acid groups. Furthermore, the band observed at 1420 cm ¹ is related to the stretching vibration of C-C bonds due to the presence of aromatic rings 44 . After the pyrolysis process and subsequent activation, certain bonds were rearranged, leading to the formation of new functional groups on the surface of the MPFR-AS adsorbent.…”

Section: Ft-ir Spectroscopymentioning

confidence: 99%

“…afterwards, the samples were taken out of the oven and let them cooled down, and then they were pounded by a mortar until they were completely powdered. In order to homogenize the parts, they were sieved by a laboratory sieve and nally, the resulting powder was kept in a desiccator 44 .…”

Section: Preparation Of Mpfr-asmentioning

confidence: 99%

“…Then, they washed with distilled water until reaching a stable and neutral pH, and this step was repeated several times in such a way that the above solution is poured into Falcon tubes, distilled water was added to them and mixed with a vortex machine. Finally, for complete separation, it was placed in a centrifuge at 5000 rpm for 20 minutes, and after neutralization, they were dried in an oven at a temperature of 103°C, and after cooling it was kept in a desiccator at room temperature 44 .…”

Section: Preparation Of Mpfr-asmentioning

confidence: 99%

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Magnetic activated carbon derived from pine fruit waste: efficient adsorbent for tetracycline (TC) and paracetamol (PC) removal from aqueous solution

Hashemzadeh,

Ariannezhad,

Derakhshandeh

2024

Preprint

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This work presents a significant highly porous activated magnetic carbon nanoparticles (MPFRC-A) derived from pine fruit residue through physical activation (carbonization temperature: 110–550◦C), chemical activation (H2SO4 (0.1 N, 96%)), and Co-precipitation processes and then using it for removing tetracycline (TC) and paracetamol (PC) from water and evaluating via the spectrophotometer (DR6000). Functionalization of Fe3O4 nanoparticles on the surface of (PFR-AS) generated high saturation magnetization that causes to separate from aqueous solution by an external magnet. MPFR-AS adsorbent was evaluated by Brunauer-Emmet-Teller (BET) analyzer, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-Ray diffraction analysis (XRD) and Raman spectroscopy (RM). In the experimental sector, the effect of different items including, pH, contact time, initial concentrations, adsorbent dosage, and temperature on the adsorption processes were investigated and based on them the adsorption isotherm modules, and kinetics were studied and concluded. Results indicated that MPFR-A exhibited a large specific surface area (182.5 m2/g) and high total pore volume (0.33 cm3/g). The maximum adsorption capacity was obtained at pH = 4,5, adsorbent dose: 400 mg and initial concentration of 20 mg/L at 25°C. The study showed that experimental data were well-fitted by Langmuir isotherm model (R2 > 0.98) and the maximum uptake capacities for TC was 43.75 mg/g and for PC was 41.7 mg/g.

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Section: Xrd Analysismentioning

confidence: 92%

Section: Ft-ir Spectroscopymentioning

confidence: 99%

Section: Ft-ir Spectroscopymentioning

confidence: 99%

Section: Preparation Of Mpfr-asmentioning

confidence: 99%

Section: Preparation Of Mpfr-asmentioning

confidence: 99%

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Magnetic activated carbon derived from pine fruit waste: efficient adsorbent for tetracycline (TC) and paracetamol (PC) removal from aqueous solution

Hashemzadeh,

Ariannezhad,

Derakhshandeh

2024

Preprint

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Waste to resource: Engineered ridge gourd peel‐based activated carbon for enhanced cephalexin adsorption

Krishna,

2024

Applied Organom Chemis

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This research investigates the efficacy of ridge gourd peel‐derived activated carbon (RGAC), activated with zinc chloride, for the removal of the antibiotic pollutant cephalexin (CFX) from aqueous solutions. Ensuring the elimination of cephalexin residues from aquatic environments is crucial for curbing the emergence of antibiotic‐resistant bacteria and preserving the balance of ecosystems. RGAC exhibits exceptional characteristics, with a surface area of 945.857 m2/g and a pore size of 1.7 nm, as determined through thorough structural analysis. Scanning electron microscopy and Fourier transform infrared analysis confirm the presence of various functional groups on RGAC's surface which aids in adsorption process, while zeta potential analysis indicates a negative surface charge of −18.11 mV. As experimental investigation, batch study was conducted considering distilled water spiked with CFX under standard condition for treatment with RGAC. Impressively, RGAC demonstrates a high CFX adsorption capacity of 37.56 mg/g, also achieving more than 90% CFX removal efficiency. Fitting of the Langmuir isotherm (R2 = 0.9647) and the pseudo‐second‐order kinetics model (R2 = 0.99) reveals strong agreement between theoretical predictions and experimental results. Furthermore, real‐time sampling and regeneration studies underscore RGAC's potential as a commercially viable adsorbent for addressing antibiotic micro‐pollutants in aquatic environments. Throughout six cycles of regeneration studies, a stable pattern emerged, showcasing rejection rates consistently between 81% and 93%. These findings contribute significantly to the advancement of environmentally sustainable water treatment strategies and pollution mitigation efforts.

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High-density amine-functionalized MCM-41 derived from pumice: facile synthesis and antibiotic adsorption

Zarrabi

2023

Polym. Bull.

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Evaluation of Cephalexin and Amoxicillin removal from aqueous media using activated carbon produced from Aloe vera leaf waste

Cited by 28 publications

References 42 publications

Magnetic activated carbon derived from pine fruit waste: efficient adsorbent for tetracycline (TC) and paracetamol (PC) removal from aqueous solution

Magnetic activated carbon derived from pine fruit waste: efficient adsorbent for tetracycline (TC) and paracetamol (PC) removal from aqueous solution

Waste to resource: Engineered ridge gourd peel‐based activated carbon for enhanced cephalexin adsorption

High-density amine-functionalized MCM-41 derived from pumice: facile synthesis and antibiotic adsorption

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