Fabrication and characterization of magnetite/reduced graphene oxide composite incurred from iron ore tailings for high performance application

Muthukannan, Vanitha; Praveen, Keerthi; Balasubramanian, N.

doi:10.1016/j.matchemphys.2015.06.006

Cited by 25 publications

(11 citation statements)

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“…Raman spectroscopy is one of the powerful techniques used to characterize carbon-based materials, as it is non-destructive, fast, and has high resolution. The structural and electronic information of the conjugated and double-bonded carbon–carbon leads to high intense peaks in Raman spectroscopy [ 11 , 19 , 36 ]. Figure 4 shows the Raman shift of graphite, GO, and rGO-Ni with reaction time variation.…”

Section: Resultsmentioning

confidence: 99%

“…For rGO, which has comparatively high defect densities, the D’ peak is more intense and thus contributes significantly to the graphene peak. The D’ peak of graphene samples is diverse from the G peak, but the properties and spectral signature of defective graphene do not close to those of even highly reduced GO [ 34 , 36 ]. In contrast, the highest intensity ratio of D band to G band (I D /I G ) is obtained from the reaction times 20 min indicated that the degree of oxygen released is higher, compared with other reaction times ( Table 2 ).…”

Section: Resultsmentioning

confidence: 99%

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Superhydrophobic Ni-Reduced Graphene Oxide Hybrid Coatings with Quasi-Periodic Spike Structures

et al. 2022

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Recently, sophisticated technologies are applied to design a certain surface nature that can have superhydrophobic properties. Thus, a simple spray technique was introduced to prepare a superhydrophobic surface using rGO with Ni-S system (rGO-Ni) by using NiSO4 catalyst under microwave irradiation at various reaction times of 5, 10, 20, and 30 min. The GO reduction was conducted at a fixed Ar/H2 ratio, a flow rate of 0.4 L/min, microwave power of 720 W, and a mass of 0.5 g. GO powder with nickel sulfate catalyst was treated under Ar/H2 (4:1) mixture for GO reduction, where Ar and H2 were expected to prevent the rebinding of oxygen released from GO. The result of XRD and Raman measurement confirms that rGO-Ni prepared at reaction time 20 min exhibit the highest reduction of GO and the presence of various Ni-S crystal structures such as NiS, NiS2, Ni3S2, and Ni3S4 due to decomposition of NiSO4. The rGO-Ni coating performance shows superhydrophobic nature with a contact angle of 150.1°. The AFM images show that the addition of nickel to rGO produces a quasi-periodic spike structure, which increases the superhydrophobicity of the r-GO-Ni coated glass with a contact angle of 152.6°. It is emphasized that the proposed simple spray coating using rGO-Ni provides a more favorable option for industry application in obtaining superhydrophobic surfaces.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Superhydrophobic Ni-Reduced Graphene Oxide Hybrid Coatings with Quasi-Periodic Spike Structures

et al. 2022

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“…89-4319). 29,30 Furthermore, the XRD pattern of AS400 showed well-defined sharp diffraction peaks, which were identified as the contributions Environmental Science: Water Research & Technology Paper of complex phases including graphite (C), quartz (SiO 2 ), sodium aluminum silicate or ZSM-12 (Na 1.15 Al 1.15 Si 0.85 O 4 ) and calcium aluminum silicate or anorthite (CaAl 2 Si 2 O 8 ), which indicates that the AS400 shows a good crystalline phase. It should be noted that the peaks identified for AS400 were detected in all five composite samples.…”

Section: Resultsmentioning

confidence: 99%

Construction of a hetero-junction recyclable composite photocatalyst from aluminum-based waste/magnetite for efficient carbamate insecticide oxidation

Thabet

Fouad

Sherbiny

et al. 2022

Environ. Sci.: Water Res. Technol.

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“…However the conventional catalysts used in the above said process are more or less unsatisfactory due to the low efficiency or being expensive. In order to overcome these issue IOTs and acid mine drainage (AMD) has used as a starting material for the inexpensive catalyst (Muthukannan, Praveen et al 2015).…”

Section: General Synthetic Methods For Preparing Icn's Using Mine Wastementioning

confidence: 99%

Next generation technology for utilization of alumina rich iron ore tailings in India

Mukopadhyay

Periyasamy

2019

New Trends in Production Engineering

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Accumulation of low-grade iron ore tailings (IOTs) generated during the processing of high-grade iron ore has become a great threat to environment. Although wide range of research works has carried out to recover the iron values from the IOTs, but the solid recovery value has limited to ca. 50% in Indian context. In order to attain a maximum iron recovery and to utilize these solid wastes for future needs, an attention has shed on the topics of hydrometallurgy and applied nanomaterial synthesis from IOTs. Iron containing nanoparticles (ICNs) have huge potential in environmental and energy related applications. A wide range of synthesis methods has developed to produce ICNs from the mine waste. It is evident from the recent research works that converting waste materials into value added products are gaining more attentions. Objective of this review is to analyse the green synthesis routes to prepare ICNs from mine waste, starting from the physio chemical identification of waste material followed by discussion on various methods of ICNs synthesis routes from mine waste. It includes selective leaching method. Finally, the use of ICNs for environmental application had discussed in brief

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Fabrication and characterization of magnetite/reduced graphene oxide composite incurred from iron ore tailings for high performance application

Cited by 25 publications

References 50 publications

Superhydrophobic Ni-Reduced Graphene Oxide Hybrid Coatings with Quasi-Periodic Spike Structures

Superhydrophobic Ni-Reduced Graphene Oxide Hybrid Coatings with Quasi-Periodic Spike Structures

Construction of a hetero-junction recyclable composite photocatalyst from aluminum-based waste/magnetite for efficient carbamate insecticide oxidation

Next generation technology for utilization of alumina rich iron ore tailings in India

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