A simple, room temperature, solid-state synthesis route for metal oxide nanostructures

Patil, Supriya A.; Shinde, Dipak V.; Ahn, Do Young; Patil, Dilip V.; Tehare, Kailas K.; Jadhav, Vijaykumar V.; Lee, Joong K.; Mane, Rajaram S.; Shrestha, Nabeen K.; Han, Sung‐Hwan

doi:10.1039/c4ta02267j

Cited by 43 publications

(23 citation statements)

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“…Nowadays, the metal and metal oxide nanoparticles are synthesized by chemical as well as physical methods such as the microwave [13], hydrothermal [14], solid-state [15], solution route method [16], sol-gel [17] chemical phase decomposition vapour [18], solvothermal crystallization [19], ultrasonic irradiation and [20], and green synthesis method [21]. Nevertheless, these methods generate heterogeneous NPs with high energy consumption and also the chemicals process involves synthetic capping, reducing, and stabilizing agents which results in the creation of anti-environmentally safe by-products [22].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of TiO2 nanoparticles by chemical and green synthesis methods and their multifaceted properties

2021

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In this present work, Titanium dioxide nanoparticles (TiO2 NPs) successfully synthesized using the chemical as well as the green synthesis routine. The ethanol provoked the chemical reduction of ions. In the green synthesis, jasmine flower extract was used as a reducing and stabilizing agent because it contains alkaloids, coumarins, flavonoids. The Rutile phase of TiO2 NPs with an average crystalline size of 31–42 nm was revealed from the XRD pattern. From the UV–Visible spectroscopy, the optically active region of TiO2 NPs at 385 nm represents the visible region spectrum. The Ti–O–Ti and Ti–O vibration bond formation confirms the formation of TiO2 NPs. The SEM image of TiO2 NPs reveals that the spherical shaped NPs with randomly arranged manner. The obtained results have revealed that the property of TiO2 nanoparticles was similar in both processes. The Photodegradation of methylene blue dye was investigated and resulted in the maximum degradation efficiency of 92% is achieved at 120 min of irradiation. The Photodegradation study shows the biosynthesized TiO2 NPs exhibits a higher degradation efficiency compared to chemically synthesized TiO2 NPs. The antibacterial activity of prepared TiO2 NP’s was studied using grams-positive and gram-negative strains. The biological activities of green synthesized TiO2 NPs are enhanced compared to the chemically synthesized TiO2 NPs. Hence the degradation efficiency and zone inhibition layer indicate that the prepared TiO2 NPs are the potential candidate for environmental and biomedical applications. Graphic abstract

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Section: Introductionmentioning

confidence: 99%

Synthesis of TiO2 nanoparticles by chemical and green synthesis methods and their multifaceted properties

2021

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“…Among these, ZnO composed of nanosheets (ZnO NSs) have exhibited superior optical and electrical performances. Compared to ZnO nanocrystal aggregates, ZnO NS-based nanostructures are more advantageous in electron transport 5,6 and also, due to their diverse morphologies, they are considered more promising than the other metal oxides in the elds of photocatalysts, 7,8 gas sensors, 9 optoelectronics and so on. Therefore, it is desirable to study the special structures of ZnO NSs in terms of their potential in photoelectrochemical device applications.…”

Section: Introductionmentioning

confidence: 99%

“…To date, ZnO photoanodes have been synthesized through the following approaches: hydrothermal, 5,14 chemical bath deposition (CBD), 6,15 electrodeposition, 16 direct precipitation, 17 sol-gel method, 18 physical or chemical vapour deposition, 19 solid-state synthesis 4 and so on. 20 Among these, solid-state synthesis is the simplest approach to synthesize ZnO NSs.…”

Section: Introductionmentioning

confidence: 99%

Photonic sintering of a ZnO nanosheet photoanode using flash white light combined with deep UV irradiation for dye-sensitized solar cells

Patil

Hwang

et al. 2017

RSC Adv.

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“…Various methods have been employed to synthesize metal oxide nanoparticles, such as microwave method [10], hydrothermal method [11], solid-state [12], solution route method [13], sol-gel method [14]. Among these methods, the sol-gel method has low a temperature for crystallization resulting in large crystalline size and small surface area.…”

Section: Introductionmentioning

confidence: 99%

Effect of organic capping agents on the optical and photocatalytic activity of mesoporous TiO2 nanoparticles by sol–gel method

Arularasu¹

2019

SN Appl. Sci.

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In this work, the effect of capping agent effects on the structural, morphological, optical properties and photocatalytic removal of Rhodamine B (RhB) dye has been investigated. TiO 2 nanoparticles were synthesized by a simple, fast and ecofriendly sol-gel method, in the presence of various capping agents, including ethylenediamine, polyvinyl alcohol (PVA), ethylene glycol, glucose and valine. The obtained TiO 2 nanoparticles have been characterized by X-ray diffraction (XRD), energy dispersive X-ray analysis, high resolution scanning electron microscopy and transmission electron microscopy, UV-visible absorption and photoluminescence (PL) spectroscopy. XRD pattern reveals the polycrystalline nature of TiO 2 with anatase structure. The results revealed that the optical absorption band of TiO 2 nanoparticles varied by capping agents. PL spectra exhibited visible emissions due to the formation of defects in the band gap region of TiO 2 nanoparticles. The photocatalytic degradation of RhB dye by synthesized TiO 2 nanoparticles using different capping agents was investigated under UV irradiation and the results demonstrated that TiO 2 nanoparticles have appreciable photocatalytic activity for decomposing RhB dye when PVA was used as a capping agent. The results explained that the preparation of TiO 2 nanoparticles showed a high efficiency in the removal of organic dyes.

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A simple, room temperature, solid-state synthesis route for metal oxide nanostructures

Abstract: In this work, we demonstrate an extremely simple but highly effective strategy for the synthesis of various functional metal oxides (MOs) such as ZnO, In2O3, Bi2O3, and SnO2nanoparticles with various distinct shapes at room temperatureviaa solid-state reaction method.

Cited by 43 publications

References 58 publications

Synthesis of TiO2 nanoparticles by chemical and green synthesis methods and their multifaceted properties

Synthesis of TiO2 nanoparticles by chemical and green synthesis methods and their multifaceted properties

Photonic sintering of a ZnO nanosheet photoanode using flash white light combined with deep UV irradiation for dye-sensitized solar cells

Effect of organic capping agents on the optical and photocatalytic activity of mesoporous TiO2 nanoparticles by sol–gel method

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