A green synthesis of calcium silicate nanopowders from silica fume and marble sawing dust by a microwave irradiation-assisted route

2021 ◽  
Author(s):  
Amira A. Hashem ◽  
Sawsan A. Mahmoud ◽  
Ramadan A. Geioushy ◽  
Osama A. Fouad
Keyword(s):  
Microwave Irradiation ◽  
Green Synthesis ◽  
Silica Fume ◽  
Calcium Silicate ◽  
Microwave Irradiation Method

Calcium silicate nanopowders have been successfully synthesized from solution mixtures of silica fume and marble sawing dust via a simple, fast and eco-friendly microwave irradiation method.

Cellulose-g-PAM Derived from Kenaf for Ethyl Orange Removal

2016 ◽  
Vol 818 ◽  
pp. 246-249 ◽  
Author(s):  
Siti Fatimah Mohamed Razak ◽  
Norzita Ngadi ◽  
Nurul Jannah Arsad
Keyword(s):  
Waste Water ◽  
Microwave Irradiation ◽  
Ftir Spectroscopy ◽  
Microwave Irradiation Method ◽  
Spectroscopy Analysis

A novel hybrid flocculant of acrylamide and cellulose was synthesized by using microwave irradiation method. Cellulose was extracted from kenaf by using TAPPI method. 57.4% of percentage grafting and efficiency has been obtained from the grafting process. There are additional peaks that appeared in FTIR spectroscopy analysis that show PAM was grafted into cellulose backbone. The flocculation behavior was studied by using ethyl orange wastewater. The result shows that hybrid flocculant (cellulose-g-PAM) has potential to be used as flocculant in treating dyes waste water.

Microwave synthesis of high rate nanostructured LiMnBO3 with excellent cyclic behavior for lithium ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (60) ◽  
pp. 31851-31854 ◽  
Author(s):  
Kaliyappan Karthikeyan ◽  
Yun Sung Lee
Keyword(s):  
Microwave Irradiation ◽  
Lithium Ion Batteries ◽  
Microwave Synthesis ◽  
Lithium Ion ◽  
High Rate ◽  
Cyclic Behavior ◽  
Microwave Irradiation Method

LiMnBO3 nanobeads (LMB-NB) prepared using a urea assisted microwave irradiation method delivered 67 mA h g−1 capacity at 0.6 C rate between 1.25 and 4.8 V, showing 88% cyclability after 100 cycles.

scholarly journals Green Synthesis of Some Calix[4]Resorcinarene Under Microwave Irradiation

2012 ◽  
Vol 4 ◽  
pp. 224-231 ◽  
Author(s):  
R.E. Sardjono ◽  
A. Kadarohman ◽  
A. Mardhiyah
Keyword(s):  
Microwave Irradiation ◽  
Green Synthesis

scholarly journals Green Synthesis of Schiff Bases Derived from 4,5-Diazafluorene-9-one in Aqueous Medium Under Microwave Irradiation

2013 ◽  
Vol 25 (6) ◽  
pp. 3390-3392
Author(s):  
Hui Cang ◽  
Yu Lu ◽  
Wenyan Shi ◽  
Jingling Shao ◽  
Qi Xu
Keyword(s):  
Microwave Irradiation ◽  
Green Synthesis ◽  
Aqueous Medium ◽  
Schiff Bases

MAGNETIC BEHAVIOR OF Ni-DOPED CuO NANOPARTICLES SYNTHESIZED BY MICROWAVE IRRADIATION METHOD

2019 ◽  
Vol 26 (05) ◽  
pp. 1850184 ◽  
Author(s):  
C. THANGAMANI ◽  
M. PONNAR ◽  
P. PRIYADHARSHINI ◽  
P. MONISHA ◽  
S. S. GOMATHI ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Microwave Irradiation ◽  
Copper Oxide ◽  
Lattice Constant ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Microwave Irradiation Method ◽  
Nickel Doping ◽  
X Ray ◽  
Ft Ir

Nickel-substituted copper oxide nanoparticles at various concentrations were synthesized by the microwave irradiation technique. The consequence of nickel doping on crystal structure, optical properties, and magnetic properties was examined by means of X-ray diffractometer, ultraviolet-visible spectrometer, Fourier transform infrared (FT-IR) spectrometer, transmission electron microscope, and vibrating sample magnetometer (VSM). X-ray diffraction analysis shows that the samples are monoclinic and their crystallite size varies from 25[Formula: see text]nm to 42[Formula: see text]nm, and lattice constant significantly increases with nickel concentration. Additional increase of nickel content (7%) decreases the lattice constant. TEM micrograph witnessed that the prepared nanoparticles were sphere-shaped and the particle distribution is in the range between 20 and 40[Formula: see text]nm. Bandgap measurement reveals that both undoped and nickel-doped copper oxides are direct bandgap semiconductor materials with bandgaps of 3.21 and 3.10[Formula: see text]eV, respectively, FT-IR spectra of the synthesized samples confirmed the nickel doping. VSM studies confirmed the ferromagnetic behavior of the synthesized samples at room temperature. The results revealed that the nickel-doped copper oxide nanoparticles synthesized via the microwave irradiation method exhibit better magnetic properties than the undoped copper oxide.

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