Bioconjugate Synthesis of NiFe2O4 Using Juglans Regia Leaves Extract: Phytochemical Analysis, Optical Activity, Removal of Ciprofloxacin and Congo Red From Water (original) (raw)
Related papers
2021
In this paper, Jr.NiFe2O4 nanoparticles (NPs) were synthesized first time using the leaves extract of Juglans regia via a straightforward process. The physio and phytochemical analysis of plant confirm the presence of macromolecules which function as bio-reductant and stabilize the nanoparticles. The Jr.NiFe2O4 NPs were characterized by UV–visible, FTIR spectroscopy, PXRD pattern, SEM and TGA/DTA analysis. The nanoparticles proved to be optically active having a value of indirect bandgap of energy in the range of 1.53 eV. The Jr.NiFe2O4 NPs have the ability in scavenging 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH) free radicals and showed 58.01% ± 1.2% scavenging activity at 100 µg/mL concentrations. The photocatalytic degradation study of ciprofloxacin (CIP) and Congo red (CR) reveals that the highest degradation rate was acquired for CIP using pH = 3, at 254 nm, while 85% of removal rate was analysed for CR. The kinetic studies in case of CR removal followed pseudo-first-order mo...
Synthesis NiFe2O4 Nanoparticles by co-Precipitation Method for Degradation of Congo Red Dye
Indonesian Journal of Fundamental and Applied Chemistry, 2020
NiFe2O4 nanoparticle was synthesized using the co-precipitation method. This study done to the purpose for get the photocatalyst magnetic. The product of NiFe2O4 nanoparticles was characterized by XRD, FTIR, SEM-EDS and UV-DRS instrumentation. The result of characterization of NiFe2O4 nanoparticles was showed a sharp intensity peak at 2θ of 35.73o. The characterization using FTIR was showed the absorption band of Ni-O metal oxide at 779.24 cm-1 and the absorption band of Fe-O metal oxide at 694.37 cm-1. Characterization using SEM-EDS showed the NiFe2O4 nanoparticles have agglomeration because the nanoparticles possess high surface energy. The composition element of NiFe2O4 nanoparticles was 47.84% O, 15.37% Fe, and 9.89% Ni. Meanwhile, the result of characterization using UV DRS was showed sharp peak intensity of wavelength at 319 nm. The band gap energy of NiFe2O4 nanoparticles with direct transition in 1.11 eV and indirect transition in 1.98 eV using the Tauc method. The small ban...
Journal of applied science and environmental management, 2024
Ciprofloxacin is a widely used antibiotic that can contaminate water sources and pose environmental and health risks. Therefore, the objective of this paper is to explore the green synthesis of iron (III) oxide nanoparticles using Citrus sinensis peel extract for the removal of ciprofloxacin in water using standard techniques. The adsorption of ciprofloxacin on the nanoparticles was investigated under different conditions, such as pH, initial concentration of adsorbate, contact time, and different adsorbent doses. The adsorption data were fitted to different isotherm and kinetic models to understand the adsorption mechanism and parameters. The results of characterization revealed the particles to be of nanocrystalline structure with a cubic crystal shape, negative surface charge, and a high thermal stability with elemental composition primarily of Fe and O; it has z-average of 42.60, with Fe-O bond at 693.30cm-1 and UV-Visible absorbance at 221nm. The maximum adsorption capacity with ciprofloxacin was 29.21 mg/g (97.45%) at pH of 7 and room temperature of 25 °C. The results of the adsorption data indicated that the adsorption followed the Langmuir isotherm model and the pseudo-second-order kinetic model, suggesting a monolayer adsorption on a homogeneous surface with a finite number of identical sites. The synthesized nanoparticles showed a high efficiency and selectivity for the removal of ciprofloxacin from water, demonstrating it potential as an eco-friendly and low-cost adsorbent for water purification.
Comparison of the Photocatalytic Degradation of Congo Red Dye Using NiO and NiO-NiFe2O4 Composite
International Journal of Environmental Science and Development
NiO and NiO-NiFe2O4, composite had been synthesized by the coprecipitation method and characterized using XRD, FTIR, UV-DRS, and SEM-EDS. The photocatalytic degradation performances of the photocatalyst were investigated using visible irradiation, in which Congo red dye was used as a model. The photocatalytic degradation process was assessed through three variables: the pH of the solution, Congo red dye initial concentration, and irradiation time. The removal efficiency of photocatalytic degradation of 98.45% was achieved using NiO-NiFe2O4 at a pH of 6, an initial concentration of the dye of 100 mg/L, and an irradiation time of 120 minutes was higher than that obtained using NiO, which was 78.5%. Pseudo-first-order was suitable to describe the kinetics of photocatalytic degradation of Congo red, with values of k = 0.0114 min-1 and t1/2 = 60.789 min using NiO as the photocatalyst, and with k =0.0225 min-1 and t1/2 = 30.8 min using NiO-NiFe2O4. The removal efficiency of the NiO-NiFe2O...
Polymer Bulletin, 2019
The discharge of contaminated water acquires the high concentration level of antibiotic into water has emerged as serious environmental threat due to their effect on the living organism. The present work involves the formation of G. ghatti-cl-P(AAm) and novel G. ghatti-cl-P(AAm)/NiFe 2 O 4 (HGNFNC) bio-nanocomposites. The novel G. ghatti-cl-P(AAm)/NiFe 2 O 4 is investigated for the elimination of ciprofloxacin hydrochloride from aqueous environment in batch experiment. The development of system confirmed by FTIR, TGA, SEM, EDS, and XRD techniques. The effect of different parameters like the adsorbent dosage, pH, and temperature on the elimination of ciprofloxacin hydrochloride was evaluated. The removal of ciprofloxacin hydrochloride by HGNFNC is fitted well with the Langmuir isotherm and the pseudo-second-order kinetic model with the 274.84 mg/g of maximum adsorption efficiency. The development of adsorbent at predetermined condition as 0.003 g/ mL adsorbent dosage, pH 6, and 298 K temperature displays the good efficiency. The data of thermodynamic parameters exhibit that the adsorption process was exothermic and spontaneous. The G. ghatti-cl-P(AAm)/NiFe 2 O 4 has good reuse ability. This study proved that G. ghatti-cl-P(AAm)/NiFe 2 O 4 is a promising adsorbent for the abatement of ciprofloxacin hydrochloride.
Journal of photochemistry and photobiology. B, Biology, 2016
The present work describes the successful synthesize of spinel magnetic ferrite Mn1-xNixFe2O4 (x=0.0, 0.1, 0.2, 0.3, 0.4 & 0.5) nanoparticles via a simple microwave combustion method which was then evaluated for its photocatalytic activity in the degradation of indigo carmine (IC) synthetic dye, a major water pollutant. Our results reveal that the synthesized of Ni(2+) doped MnFe2O4 nanoparticles possess well-crystalline pure cubic spinel phase, exhibit excellent optical and magnetic properties. Further, the photocatalytic performance of the synthesized nanoparticles at different concentration ratios of Ni(2+) ions was monitored by photocatalytic degradation of indigo carmine synthetic dye under UV (λ=365nm) light irradiation. In order to get maximum photocatalytic degradation (PCD) efficiency, we have optimized various parameters, which include catalyst dosage, initial dye concentration, pH and Ni(2+) dopant content. It was found that the reaction was facilitated with optimum catal...
Nanochemistry Research, 2021
Abstract
In the present work, preparation of nickel ferrite (NiFe2O4) and its surface modification by biosynthesized Pd nanoparticles (NPs) were carried out. Firstly, NiFe2O4 NPs were synthesized via a facile combustion approach and then Pd NP biosynthesized on their surface by using an aqueous Marrubium vulgare L leaf extract. Prepared NiFe2O4 NPs were characterized by FT-IR, XRD, vibrating sample magnetometer (VSM), Field Emission Scanning Electron Microscope(FESEM), and Energy Dispersive X-ray Analysis (EDXA) techniques, in which confirmed well dispersion of spherical Pd NPs on the surface of magnetic NiFe2O4 nanoparticles. Catalytic activity of Pd/NiFe2O4 nanocomposites were evaluated in reduction of Methylene Blue (MB), Methyl Orange (MO) and Congo Red (CR) azo dyes in the presence of sodium borohydride (NaBH4). Observed results showed the reduction/decolorization times in the presence of magnetically recoverable Pd/NiFe2O4 nanocomposites were very shorter than that of NiFe2O4 catalyst.
Keywords: Pd nanoparticles; NiFe2O4 nanoparticles; M. vulgare L; Catalytic Reduction.
Process Safety and Environmental Protection, 2019
Research highlights: ZnFe2O4@CMC was synthesized by a simple and green hydrothermal method in aqueous media. The magnetic studies specified the ferromagnetic properties of ZnFe2O4@CMC. ZnFe2O4@CMC exhibited good chemical stability and reusability. ZnFe2O4@CMC displayed significant photocatalytic activity for ciprofloxacin photodegradation. The antibiotic photodegradation followed the pseudo-first order and Langmuir-Hinshelwood kinetic models (R 2 = 0.997).
Monodispersed NiFe2O4 nanoparticles: Nonaqueous synthesis and characterization
Materials Chemistry and Physics, 2008
Monodispersed NiFe 2 O 4 nanoparticles are synthesized using both organic and inorganic precursors via a nonaqueous solvothermal method. X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and atomic absorption spectroscopy (AAS) have confirmed the formation of single-phase monodispersed NiFe 2 O 4 nanoparticles. The synthesized particles are highly dispersible in nonpolar organic solvents like hexane, toluene etc. A detailed study on the variation of size and shape of the synthesized particles by slight variation of the reaction conditions has been carried out.