Biofriendly and competent domestic microwave assisted method for the synthesis of ZnO nanoparticles from the extract of Azadirachta indica leaves

Thiourea-modified ZnO nanoparticles were prepared by the microwave-assisted method. The nanoparticles were characterized by X-ray diffraction (XRD), High-resolution transmission electron microscope (TEM), UV-Vis absorption spectroscopy (UV-Vis) and X-ray photoelectron spectroscopy (XPS). ZnO nanoparticles presented typical wurtzite structure. Microwave-assisted method and thiourea modifying reduced the particle size of ZnO corporately and the particle size of 2.0 mol% thiourea/ZnO was about 3 nm. The photocatalytic efficiency of thiourea-modified ZnO was influenced by the molar precent between thiourea and ZnO and 2.0 mol% thiourea/ZnO had the highest photocatalytic activity. The degradation rate of 30 mg/L C.I. Reactive Blue 4 could get to 85% in 50 min at room temperature when the concentration of 2.0 mol% thiourea/ZnO was 0.10 g/L.

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Optimization of the Microwave-Assisted Extraction of Azadirachta indica (Neem) Leaves Using NMR-based Metabolic Fingerprinting

Current Bioactive Compounds ◽

10.2174/1573407211666151002001919 ◽

2015 ◽

Vol 11 (3) ◽

pp. 142-145 ◽

Cited By ~ 4

Author(s):

Simone Carradori ◽

Luisa Mannina ◽

Federica De Cosmi ◽

Tamara Beccarini ◽

Daniela Secci ◽

...

Keyword(s):

Azadirachta Indica ◽

Metabolic Fingerprinting ◽

Microwave Assisted Extraction ◽

Microwave Assisted ◽

Assisted Extraction ◽

Neem Leaves

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Simple and scalable synthesis of urchin-like ZnO nanoparticles via a microwave-assisted drying process

Ceramics International ◽

10.1016/j.ceramint.2021.02.045 ◽

2021 ◽

Author(s):

Myung Sik Choi ◽

Han Gil Na ◽

Gyu Sam Shim ◽

Jae Hee Cho ◽

Min Young Kim ◽

...

Keyword(s):

Zno Nanoparticles ◽

Drying Process ◽

Microwave Assisted ◽

Scalable Synthesis

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Preparation and application of carbon and hollow TiO2 microspheres by microwave heating at a low temperature

e-Polymers ◽

10.1515/epoly-2021-0014 ◽

2021 ◽

Vol 21 (1) ◽

pp. 200-209

Author(s):

Caiyun Zhang ◽

Chunhong Li ◽

Bolin Ji ◽

Zhaohui Jiang

Keyword(s):

Low Temperature ◽

Microwave Heating ◽

Raw Material ◽

Carbon Microspheres ◽

Microwave Assisted ◽

The Core ◽

Good Crystallinity ◽

Carbon Core ◽

Microwave Assisted Method ◽

Uniform Particle Size

Abstract A fast, simple, and energy-saving microwave-assisted approach was successfully developed to prepare carbon microspheres. The carbon microspheres with a uniform particle size and good dispersity were prepared using glucose as the raw material and HCl as the dehydrating agent at low temperature (90°C) in an open system with the assistance of microwave heating. The carbon microspheres were characterized by elemental analysis, XRD, SEM, FTIR, TG, and Raman. The results showed that the carbon microspheres prepared under the condition of 18.5% (v/v) HCl and heating for 30 min by microwave had a narrow size distribution. The core–shell structure of the carbon core and TiO2 shell was prepared with (NH4)2TiF6, H3BO3 using the microwave-assisted method. The hollow TiO2 microspheres with good crystallinity and high photocatalytic properties were successfully prepared by sacrificing the carbon microspheres.

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Properties and molecular structure of carbon quantum dots derived from empty fruit bunch biochar using a facile microwave-assisted method for the detection of Cu2+ ions

Optical Materials ◽

10.1016/j.optmat.2021.110801 ◽

2021 ◽

Vol 112 ◽

pp. 110801

Author(s):

Alif Syafiq Kamarol Zaman ◽

Tong Ling Tan ◽

Yamuna A/P Chowmasundaram ◽

Norhanisah Jamaludin ◽

Amir Reza Sadrolhosseini ◽

...

Keyword(s):

Molecular Structure ◽

Quantum Dots ◽

Carbon Quantum Dots ◽

Empty Fruit Bunch ◽

Microwave Assisted ◽

Microwave Assisted Method

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Microwave-Assisted Combustion Synthesis of ZnO Nanoparticles

Journal of Chemistry ◽

10.1155/2013/562028 ◽

2013 ◽

Vol 2013 ◽

pp. 1-4 ◽

Cited By ~ 34

Author(s):

M. Kooti ◽

A. Naghdi Sedeh

Keyword(s):

Electron Microscopy ◽

Zno Nanoparticles ◽

Combustion Method ◽

Zinc Nitrate ◽

High Yield ◽

Fast Method ◽

Simple Method ◽

X Ray ◽

Microwave Assisted ◽

Average Size

A new and simple method was applied for the synthesis of ZnO nanoparticles with an average size of 20 nm. In this microwave-assisted combustion method, glycine as a fuel and zinc nitrate as precursor were used. The final product was obtained very fast with high yield and purity. The synthesized nanoscale ZnO was characterized by X-ray Diffraction (XRD), Energy Dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FT-IR). The size and morphology of the ZnO nanoparticles have been determined by field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) techniques. This is a simple and fast method for the preparation of ZnO nanoparticles with no need for expensive materials or complicated treatments.

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