Preparation, characterization and photocatalytic activity of Co-doped LaMnO3/graphene composites

Hu, Jie; Ma, Jinyuan; Wang, Lina; Huang, Hao; Ma, Luwei

doi:10.1016/j.powtec.2014.01.071

Cited by 37 publications

(13 citation statements)

References 27 publications

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“…Part (d) is showing the N‐Deethylation process with the formation of Rhodamine at the surface of LaMnO 3 nanoparticles, whereas Part (e) is showing the irradiation of Rhodamine molecules adsorbed on the nanoparticle surface with visible light. As explained by some authors, due to irradiation of visible light, electrons move from valence band to the conduction band, and holes are generated in the valence band. Since these electron‐hole pairs are created on the surface of the nanoparticles, surface charge, surface energy and surface area to volume ratio play a significant role in their performance.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Catalytic and Photocatalytic Degradation of Organic Pollutant Rhodamine‐B by LaMnO₃ Nanoparticles Synthesized by Non‐Aqueous Sol‐Gel Route

Dhiman

Singh

2019

Physica Status Solidi (a)

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The water crisis is one of the major problem of the 21 st century. This has led to the development of various techniques for water purification such as wastewater treatment. In this technique, coloring dyes are one of the most challenging materials to treat. Rhodamine-B (RhB) is one of the significant coloring agent and is very difficult to treat using conventional techniques. Here, the enhanced catalytic and photocatalytic degradation of RhB by LaMnO 3 nanoparticles is reported. The sol-gel route is used for the synthesis of LaMnO 3 nanoparticles, and structural, magnetic, optical and zeta potential studies are performed. X-ray diffraction analysis confirms the rhombohedral perovskite structure with R3c space group. The magnetic measurement at 5 K shows that saturation magnetization value increases with an increase in particle size. UV-vis absorption study of LaMnO 3 nanoparticles confirms the optical band gap decreases with increasing size. Zeta potential study of LaMnO 3 nanoparticles shows a negative charge on the surface. Degradation of organic pollutant RhB by nanoparticles of LaMnO 3 is performed under dark, followed by visible light irradiation. Under the dark, 90-92% of the RhB is degraded. Subsequently, upon visible light irradiation, it increased above 99%, confirming enhanced catalytic and photocatalytic activity of LaMnO 3 nanoparticles over RhB.

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Section: Resultsmentioning

confidence: 99%

Enhanced Catalytic and Photocatalytic Degradation of Organic Pollutant Rhodamine‐B by LaMnO₃ Nanoparticles Synthesized by Non‐Aqueous Sol‐Gel Route

Dhiman

Singh

2019

Physica Status Solidi (a)

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“…As heated in air flow, the weight loss of RGO is 39.71 wt% at 420 • C due to the loss of free water. Due to the combustion of the RGO carbon skeleton [26], the weight loss of RGO increases from 39.71 to 92.82 wt% with an increase in temperature from 420 • C to 600 • C. A sharp exothermic peak approximately 460 • C is found on the DTA curve of RGO, which could explain the weight loss of RGO above 420 • C. After heated in nitrogen flow, as shown in Fig. 1, RGO has little weight loss above 420 • C, suggesting the thermal stability without oxygen [27,28].…”

Section: Resultsmentioning

confidence: 99%

RGO/InVO4 hollowed-out nanofibers: Electrospinning synthesis and its application in photocatalysis

Zhang

Gao

et al. 2015

Applied Surface Science

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“…In addition, another new LaMn 1-x Co x O 3 /graphene composite material as photocatalyst had been designed and prepared by sol-gel method [38]. The experimental data indicated that LaMnO 3 perovskite phase was anchored on graphene surface with the special perovskite structure.…”

Section: Preparation and Catalytic Properties Of Some Functionalized mentioning

confidence: 99%

Preparation of Functionalized Graphene and Gold Nanocomposites – Self-assembly and Catalytic Properties

Zhou¹,

Jiao²,

Zhang³

et al. 2016

Advanced Catalytic Materials - Photocatalysis and Other Current Trends

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Nanocomposites and nanomaterials have been attracting more attention in various fields. Nanocomposites can be prepared with a variety of special physical, thermal, and other unique properties. They have better properties than conventional microscale composites and can be synthesized using simple and inexpensive techniques. A composite material consists of an assemblage of two materials of different natures completing and allowing us to obtain a material of which the set of performance characteristics is greater than that of the components taken separately. In our recent research, some functionalized nanocomposites and nanomaterials have been prepared and investigated. In addition, some of the analytical methods, theoretical treatments, and synthetic tools, which are being applied in the area of self-assembly and supramolecular chemistry, will be highlighted. In this chapter, we summarize our main research contributions in recent years in two sections: (1) preparation and catalytic properties of some functionalized graphene nanocomposites; (2) preparation and catalytic properties of some functionalized gold nanocomposites. These works not only provided important inspirations for developing graphene-hybridized materials but also opened new possibilities to improve the photocatalytic activity of photocatalyst.

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Preparation, characterization and photocatalytic activity of Co-doped LaMnO3/graphene composites

Cited by 37 publications

References 27 publications

Enhanced Catalytic and Photocatalytic Degradation of Organic Pollutant Rhodamine‐B by LaMnO₃ Nanoparticles Synthesized by Non‐Aqueous Sol‐Gel Route

Enhanced Catalytic and Photocatalytic Degradation of Organic Pollutant Rhodamine‐B by LaMnO₃ Nanoparticles Synthesized by Non‐Aqueous Sol‐Gel Route

RGO/InVO4 hollowed-out nanofibers: Electrospinning synthesis and its application in photocatalysis

Preparation of Functionalized Graphene and Gold Nanocomposites – Self-assembly and Catalytic Properties

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Preparation, characterization and photocatalytic activity of Co-doped LaMnO3/graphene composites

Cited by 37 publications

References 27 publications

Enhanced Catalytic and Photocatalytic Degradation of Organic Pollutant Rhodamine‐B by LaMnO3 Nanoparticles Synthesized by Non‐Aqueous Sol‐Gel Route

Enhanced Catalytic and Photocatalytic Degradation of Organic Pollutant Rhodamine‐B by LaMnO3 Nanoparticles Synthesized by Non‐Aqueous Sol‐Gel Route

RGO/InVO4 hollowed-out nanofibers: Electrospinning synthesis and its application in photocatalysis

Preparation of Functionalized Graphene and Gold Nanocomposites – Self-assembly and Catalytic Properties

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Enhanced Catalytic and Photocatalytic Degradation of Organic Pollutant Rhodamine‐B by LaMnO₃ Nanoparticles Synthesized by Non‐Aqueous Sol‐Gel Route

Enhanced Catalytic and Photocatalytic Degradation of Organic Pollutant Rhodamine‐B by LaMnO₃ Nanoparticles Synthesized by Non‐Aqueous Sol‐Gel Route