Synthesis of Zno-Nife2o4 Magnetic Nanocomposites by Simple Solvothermal Method for Photocatalytic Dye Degradation Under Solar Light

Rahmayeni,; Zulhadjri, Zulhadjri; Jamarun, Novesar; Emriadi,; Arief, Syukri

doi:10.13005/ojc/320315

Cited by 31 publications

(13 citation statements)

References 19 publications

(22 reference statements)

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“…Each treatment step in the production of the extract catalyzed spinel ferrites reduced the bandgap energy (Table-1) perhaps due to the crystallite size decreasing at each treatment step leading to a quantum confinement effect. 20 The bandgap energy for NiENK and NiEN sample was close to that of samples obtained in previous studies (1.64 eV) 26,27 and (~2.1 eV). 28 The chemical state of the elements in the NiENK spinel ferrite was investigated using an XPS instrument.…”

Section: Characterizationssupporting

confidence: 87%

GREEN SYNTHESIS OF NiFe2O4 SPINEL FERRITES MAGNETIC IN THE PRESENCE OF Hibiscus rosa-sinensis LEAVES EXTRACT: MORPHOLOGY, STRUCTURE AND ACTIVITY

Rahmayeni¹,

Putri²,

Stiadi³

et al. 2019

RJC

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Spinel ferrite magnetic of NiFe 2 O 4 particles were prepared using a green synthesis approach with Hibiscus rosasinensis extract. The characterization of obtained samples was conducted using X-ray diffraction, transmission electron microscopy, diffuse reflectance spectroscopy UV-Vis, vibrating sample magnetometer, Fourier transformed infra-red, and X-ray photoelectron spectroscopy. The activity of the samples was evaluated by measuring the degradation of Direct Yellow 27 and batik waste dyes under sunlight irradiation. Structural analysis by comparison of the X-ray diffraction pattern against standard data confirmed the formation of spinel ferrite. The morphology observation revealed that NiFe 2 O 4 nanoparticles had a rod-like and spherical shape. All samples show magnetic behavior. The calcination process affected the magnetic properties and band gap of prepared particles. Furthermore, Fourier transforms infra-red spectra showed vibration of Fe-O and Ni-O at 300-600 cm -1 for tetragonal and octahedral sites in spinel ferrite structures. The samples showed good photocatalytic activity under sunlight; degradation was 95% and 84% for Direct Yellow 27 and batik waste dyes respectively.

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Section: Characterizationssupporting

confidence: 87%

GREEN SYNTHESIS OF NiFe2O4 SPINEL FERRITES MAGNETIC IN THE PRESENCE OF Hibiscus rosa-sinensis LEAVES EXTRACT: MORPHOLOGY, STRUCTURE AND ACTIVITY

Rahmayeni¹,

Putri²,

Stiadi³

et al. 2019

RJC

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“…This peak is due to the absorption characteristic of d-shell electrons of Fe and Ni elements (Marzauk et al, 2016). The results show that NiFe 2 O 4 NPs absorbed light in the visible region due to the small energy bandgap (Rahmayeni et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Genotoxic analysis of nickel–iron oxide in Drosophila

Nas

Çolak

2020

Toxicol Ind Health

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It is known that nickel–iron oxide nanocomposite (NiFe2O4NP) is used in many important areas such as modern industry, biomedical applications, magnetic resonance imaging, construction of sensors, targeted drug treatment, and photoelectric devices in our life. In this study, we have carried out a genotoxic evaluation of NiFe2O4NP (30 nm) in Drosophila melanogaster by using the wing somatic mutation and recombination assay. For this purpose, third instar larvae carrying the recessive genes ( flr3) and multiple wing hairs ( mwh) in their third chromosomes were used. The larvae were fed at concentrations ranging from 25 µg/mL to 200 µg/mL. The genotoxic effects of NiFe2O4NPs were evaluated according to mutant trichomes resulting from genetic changes (mitotic recombination, deletion, point mutation, nondisjunction) on development of the wing imaginal discs. Mutant clone evaluations were performed based on small single spots, large single spots, and twin spots classifications. The results showed that significant increases were observed in the frequency of all spots, indicating that the highest concentration of nanoparticles was able to induce genotoxic activity in the wing spot assay of D. melanogaster.

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“…Magnetic properties of NiFe2O4 nanoparticles. nanoparticles synthesized was greater than by the coprecipitation method, namely 1.64 eV [28] and 1.87 eV [29]. The band gap energy of ferrite compounds is 2.0 eV, which is effective for absorbing visible light [30].…”

Section: Characterization Of Nife2o4 Nanoparticlesmentioning

confidence: 92%

Preparation of NiFe2O4 Nanoparticles by Solution Combustion Method as Photocatalyst of Congo red

Hariani

Said

Rachmat

et al. 2021

Bull. Chem. React. Eng. Catal.

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NiFe2O4 nanoparticles had been successfully synthesized by solution combustion method using urea fuel (organic precursor). The synthesized NiFe2O4 were characterized by X-ray diffraction (XRD), Scanning electron microscopy-Electron Dispersive X-ray Spectroscopy (SEM-EDs), Transmission Electron Microscopy (TEM), Fourier Transform Infra-Red (FTIR), Vibrating Sample Magnetometer (VSM), UV-Vis Diffuse Reflectance Spectroscopy (UV-Vis DRS), and Point of Zero Charge (pHpzc). NiFe2O4 nanoparticles irradiated with visible light were employed to degrade Congo red dye with the following variable: solution pH (3–8), H2O2 concentration (0.5–3 mM), and Congo red concentration (100–600 mg/L). XRD analysis results showed that the NiFe2O4 nanoparticles had a cubic spinel structure. The particle sizes are in the range of 10–40 nm. The magnetic properties of NiFe2O4 nanoparticles determined using VSM showed a magnetization saturation value of 47.32 emu/g. UV-Vis DRS analysis indicated that NiFe2O4 nanoparticles had an optical band gap of 1.97 eV. The success of synthesis was also proven by the EDS analysis results, which showed that the synthesized NiFe2O4 nanoparticles composed of Ni, Fe, and O elements. The removal efficiency of Congo red dye was 96.80% at the following optimum conditions: solution pH of 5.0, H2O2 concentration of 2 mM, Congo red dye concentration of 100 mg/L, and contact time of 60 min. The study of the photodegradation kinetics follows a pseudo-first order reaction with a rate constant value of 0.0853 min−1. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Synthesis of Zno-Nife2o4 Magnetic Nanocomposites by Simple Solvothermal Method for Photocatalytic Dye Degradation Under Solar Light

Cited by 31 publications

References 19 publications

GREEN SYNTHESIS OF NiFe2O4 SPINEL FERRITES MAGNETIC IN THE PRESENCE OF Hibiscus rosa-sinensis LEAVES EXTRACT: MORPHOLOGY, STRUCTURE AND ACTIVITY

GREEN SYNTHESIS OF NiFe2O4 SPINEL FERRITES MAGNETIC IN THE PRESENCE OF Hibiscus rosa-sinensis LEAVES EXTRACT: MORPHOLOGY, STRUCTURE AND ACTIVITY

Genotoxic analysis of nickel–iron oxide in Drosophila

Preparation of NiFe2O4 Nanoparticles by Solution Combustion Method as Photocatalyst of Congo red

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