Synthesis and Characterization of Graphene Prepared from Rice Husk by a Simple Microwave Process

Graphene can be prepared by many methods; a simple microwave process is used in this study. The objective of this research paper is to find the best root for preparing the graphene from rice husk with the help of microwave process. In this work the Carbon source catalyst and microwave oven is used to prepare graphene. Zeta Sizer, FTIR, UV-Vis, XRD, FESEM and EDX were utilized to characterize the prepared graphene. To find the best combination of input variables that effect the crystallite size of the particle as an output variable Taguchi L9 array used. The average crystallite size 58. 01nm comes from characterization. The presence of graphene in the prepare particles is confirmed by XRD and from EDX, and FTIR.

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Synthesis and Characterization of Stabilized Tetragonal Nano Zirconia by Precipitation Method

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.56.142 ◽

2019 ◽

Vol 56 ◽

pp. 142-151

Author(s):

Hassan Shokry ◽

Marwa Elkady ◽

Hesham Hamad

Keyword(s):

Phase Transformation ◽

Crystallite Size ◽

Calcination Temperature ◽

Average Crystallite Size ◽

Precipitation Method ◽

Synthesis And Characterization ◽

Calcination Temperatures ◽

Ft Ir ◽

20 Nm

Nano sized ZrO2 nanopowder was synthesized by precipitation method. Phase transformation was investigated as a function of calcination temperature by XRD, SEM , and FT-IR. It is indicated that the thermal anneling from 400 to 800 °C resulted in increasing the average crystallite size from 12 to 20 nm. As the calcination temperature increased, the crystallite size and the agglomeration were increased. The increase in the monoclinic content and grain growth are caused by the calcination temperatures even calcination at 800 °C.

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Synthesis and characterization of red mud and rice husk ash-based geopolymer composites

Cement and Concrete Composites ◽

10.1016/j.cemconcomp.2012.11.010 ◽

2013 ◽

Vol 37 ◽

pp. 108-118 ◽

Cited By ~ 261

Author(s):

Jian He ◽

Yuxin Jie ◽

Jianhong Zhang ◽

Yuzhen Yu ◽

Guoping Zhang

Keyword(s):

Rice Husk ◽

Red Mud ◽

Rice Husk Ash ◽

Synthesis And Characterization ◽

Geopolymer Composites

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Synthesis and Characterization of Cerium Oxide (CeO2) Nanoparticles

Materials Science Forum ◽

10.4028/www.scientific.net/msf.609.189 ◽

2009 ◽

Vol 609 ◽

pp. 189-194 ◽

Cited By ~ 5

Author(s):

C. Benmouhoub ◽

A. Kadri ◽

N. Benbrahim ◽

S. Hadji

Keyword(s):

Crystallite Size ◽

Cerium Oxide ◽

Ceo2 Nanoparticles ◽

Precipitation Method ◽

Synthesis And Characterization

Nanoparticles of cerium oxide (CeO2) are synthesized with cerium (III) nitrates (Ce(NO3)3, 6H2O) by precipitation method in ammonium hydroxyl solution (NH4OH). The influence of several parameters such as nature of the solvent, synthesizing temperature and the calcination on the crystallite size is studied by XRD, TEM and BET methods. The results show that both calcinations and synthesizing temperature affect the particles size. Also, the nature of solvent has a great effect on the morphology of CeO2 nanoparticles.

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Synthesis and Characterization of Fluorocarbon from Rice Husk and its Application as an Efficient Sorbent for Micro-Solid-Phase Extraction of N-Nitrosamines in Desalinated Water Samples

Chromatographia ◽

10.1007/s10337-019-03813-x ◽

2019 ◽

Vol 83 (1) ◽

pp. 95-105

Author(s):

Rashed S. Bakdash ◽

Azeem Rana ◽

Chanbasha Basheer ◽

Abdulaziz A. Al-Saadi ◽

Mohammed AlSeedi ◽

...

Keyword(s):

Solid Phase Extraction ◽

Rice Husk ◽

Water Samples ◽

Solid Phase ◽

Synthesis And Characterization ◽

Phase Extraction ◽

Desalinated Water

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Characterization of Cobalt Sulfide Thin Films Synthesized from Acidic Chemical Baths

Advances in Materials Science and Engineering ◽

10.1155/2020/2628706 ◽

2020 ◽

Vol 2020 ◽

pp. 1-9

Author(s):

Tizazu Abza ◽

Dereje Gelanu Dadi ◽

Fekadu Gashaw Hone ◽

Tesfaye Chebelew Meharu ◽

Gebremeskel Tekle ◽

...

Keyword(s):

Thin Films ◽

Crystallite Size ◽

Deposition Time ◽

Average Crystallite Size ◽

Cobalt Sulfide ◽

Face Centered Cubic ◽

X Ray Diffraction ◽

Electron Microscopic ◽

Face Centered

Cobalt sulfide thin films were synthesized from acidic chemical baths by varying the deposition time. The powder X-ray diffraction studies indicated that there are hexagonal CoS, face-centered cubic Co3S4, and cubic Co9S8 phases of cobalt sulfide. The crystallite size of the hexagonal CoS phase decreased from 52.8 nm to 22.5 nm and that of the cubic Co9S8 phase increased from 11 nm to 60 nm as the deposition time increased from 2 hrs to 3.5 hrs. The scanning electron microscopic images revealed crack and pinhole free thin films with uniform and smooth background and few large polygonal grains on the surface. The band gap of the cobalt sulfide thin films decreased from 1.75 eV to 1.3 eV as the deposition time increased from 2 hrs to 3.5 hrs. The photoluminescence (PL) spectra of the films confirmed the emission of ultraviolet, violet, and blue lights. The intense PL emission of violet light at 384 nm had red shifted with increasing deposition time that could be resulted from the increase in the average crystallite size. The FTIR spectra of the films indicated the presence of OH, C-O-H, C-O, double sulfide, and Co-S groups. As the deposition time increased, the electrical resistivity of the cobalt sulfide thin films decreased due to the increase in both the crystallite size and the films’ thickness.

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