Preparation and Characterization of Magnetite Nanoparticles Combined with Polyaniline and Activated Carbon

Subadra, St. Ulfawanti Intan; Sutiami, Rita; Taufiq, Ahmad; Diantoro, Markus; Sunaryono, Sunaryono; Arif,; Hidayat, Hidayat; Mufti, Nandang; Hidayat, Nurul; Susanto, Hendra; Adi, Wisnu Ari

doi:10.1088/1755-1315/276/1/012041

Cited by 9 publications

(5 citation statements)

References 27 publications

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“…67,68 According to the literature, the calculated band gap energy of the individual ZnO and Fe 3 O 4 was about 3.2 and 2.3 eV, respectively. 69,70 In this regard, the possible proposed mechanism clarifies that the photocatalyst procedure of the Fe 3 O 4 @PVA−Au/ZnO magnetic photocatalytic system can be initiated under the green LED light irradiation. Afterward, the electron transfer from the VB to the CB leads to positive and negative charges on the photocatalyst's energy levels.…”

Section: Optimization Of the Conditions And Photocatalyticmentioning

confidence: 80%

Efficient Photodegradation of Eriochrome Black-T by a Trimetallic Magnetic Self-Synthesized Nanophotocatalyst Based on Zn/Au/Fe-Embedded Poly(vinyl alcohol)

et al. 2022

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This study presents a novel photocatalytic system for photocatalytic degradation of Eriochrome black-T (EBT) dye via green light-emitting diode (LED) light exposure. This photocatalyst is comprised of nanoscale components, i.e., poly-(vinyl alcohol) (PVA), magnetic iron oxide nanoparticles (Fe 3 O 4 NPs), gold NPs (Au NPs), and zinc oxide nanorods (ZnO NRs), rendering an active high surface area. The most highlighted property from the structural facet is the superparamagnetic behavior of Fe 3 O 4 NPs, which provides a facile collection of magnetic photocatalyst NPs from the reaction flask and is successfully recycled eight times without considerable reduction in catalytic behavior. Briefly, the photocatalytic degradation at its highest efficiency reached 51.4% (10 ppm dye solution, 5.0 mL) and 64.75% (8 ppm dye solution, 5.0 mL) utilizing 10 mg of the designed photocatalyst (formulated as Fe 3 O 4 @PVA−Au/ZnO), a magnetic photocatalytic system under green LED light (7 W, 526 nm) exposure for 60 min. Besides, the photocatalytic degradation mechanism of the EBT dye by the as-prepared photocatalyst was proposed. Based on the obtained results, the presented photocatalytic method was recommended for scaling up and large-scale exploitation for the purification of the water resources.

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Section: Optimization Of the Conditions And Photocatalyticmentioning

confidence: 80%

Efficient Photodegradation of Eriochrome Black-T by a Trimetallic Magnetic Self-Synthesized Nanophotocatalyst Based on Zn/Au/Fe-Embedded Poly(vinyl alcohol)

et al. 2022

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“…However, the results of particle size calculation using SEM are different from the results of XRD calculations using the Rietveld refinement. This difference is caused because SEM only scans the sample surface, so the particle diameter is also based on the particles on the sample surface [30]. Referring to the FTIR results as shown in Figure 3, there is a peak that appears at wavenumbers of 529 cm -1 and 440 cm -1 indicating stretching vibrations of Zn-O bonds on a tetrahedral lattice and Fe-O on an octahedral lattice [31].…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of ZnFe<sub>2</sub>O<sub>4</sub>- PEG/RGO Nanocomposites as Lead Heavy Metal Adsorbents

Febrianti

Taufiq

Hidayat

et al. 2023

KEM

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Lead waste that pollutes the environment can cause a variety of serious diseases. Various efforts have been made to remove lead waste from the environment, one of which is through the development of magnetic nanoparticles-based adsorbents. In this work, the synthesis of ZnFe2O4-PEG/RGO nanocomposites was carried out through co-precipitation and sonochemical methods. The structure, morphology, function groups, and adsorption performance of the ZnFe2O4-PEG/RGO nanocomposites were characterized using XRD, SEM, FTIR, and AAS. X-ray diffraction pattern showed the formation of a single phase ZnFe2O4 with a cubic spinel structure. The RGO peak was not detected because the RGO mass was much smaller inside the ZnFe2O4-PEG/RGO nanocomposites. Furthermore, refinement analysis through Rietica software obtained crystallite size of ZnFe2O4-PEG/RGO were 9.6 nm. The SEM result showed that the morphology of ZnFe2O4-PEG tends to be spherically distributed on RGO. Based on FTIR results, the functional groups of ZnFe2O4-PEG/RGO nanocomposites showed the presence of Zn-O and Fe-O bonds at 529 cm-1 and 428 cm-1. Meanwhile, C-O bonds at wavenumbers 1222 cm-1 showed typical absorption of RGO. Despite Fe-O and C-O bonds, the presence of C-O-C bonds at wavenumbers of 1031 cm-1 indicates the characteristics of PEG that successfully coats ZnFe2O4 nanoparticles. Interestingly, the AAS results showed that ZnFe2O4-PEG/RGO nanocomposites had an excellent performance as lead adsorbents, evidenced by the percentage of adsorption up to 97,7%.

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“…The relatively small peak intensity is also possible due to a rigid benzene ring in the polymer chain, which can prevent the formation of a crystal structure [29]. This is also supported by the characteristics of polyaniline, which tends to have the characteristics of amorphous materials [30].…”

Section: Xrd Characterizationmentioning

confidence: 94%

Study of the Structure of MnxFe3-xO4-Poly(m-Aminobenzene Sulfonic Acid) Composites Based on Natural Sand

Choerullah,

Sunaryono,

Hidayat

et al. 2022

JPSE

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MnxFe3-xO4-Poly(m-ABS) nanocomposite has been successfully synthesized by in-situ polymerization. In the formation of MnxFe3-xO4-Poly(m-ABS) nanocomposites, FeCl synthesized from iron sand acts as an oxidant and m-aminobenzenesulfonic acid (m-ABS) as a monomer. Structural characterization has been successfully carried out using XRD, FTIR, and SEM. XRD test results show that the MnxFe3-xO4-Poly(m-ABS) nanocomposite has a particle size of about 10.62 nm. The appearance of peaks (111) and (620) with low intensity indicated the presence of poly(m-ABS). This low intensity was probably caused by the amorphous character of polyaniline and its derivatives. The FTIR results show the appearance of asymmetrical and symmetrical S=O strains, S-O, and C-S strains are the main characteristics of poly(m-ABS) which indicate the success of monomer polymerization. The results of the SEM test show that circular shapes dominate the particles with varying sizes with an average size of 42 nm. This result is different from the XRD results because SEM can only measure the surface of the particles, so the resulting size tends to be larger. Based on the study of the structure obtained shows that the MnxFe3-xO4-Poly(m-ABS) nanocomposite has the potential to be applied to energy conversion devices.

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Preparation and Characterization of Magnetite Nanoparticles Combined with Polyaniline and Activated Carbon

Cited by 9 publications

References 27 publications

Efficient Photodegradation of Eriochrome Black-T by a Trimetallic Magnetic Self-Synthesized Nanophotocatalyst Based on Zn/Au/Fe-Embedded Poly(vinyl alcohol)

Efficient Photodegradation of Eriochrome Black-T by a Trimetallic Magnetic Self-Synthesized Nanophotocatalyst Based on Zn/Au/Fe-Embedded Poly(vinyl alcohol)

Synthesis and Characterization of ZnFe<sub>2</sub>O<sub>4</sub>- PEG/RGO Nanocomposites as Lead Heavy Metal Adsorbents

Study of the Structure of MnxFe3-xO4-Poly(m-Aminobenzene Sulfonic Acid) Composites Based on Natural Sand

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