CHARACTERIZATION OF BRUCITE/TiO2 COMPOSITE PARTICLE MATERIAL PREPARED BY MECHANO-CHEMICAL METHOD

2018 ◽  
Vol 25 (04) ◽  
pp. 1850085 ◽  
Author(s):  
YU LIANG ◽  
HAO DING ◽  
QIANG XUE
Keyword(s):  
Titanium Dioxide ◽  
Electron Microscope ◽  
Reaction Mechanism ◽  
Chemical Method ◽  
Composite Particle ◽  
Composite Particles ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

Brucite/TiO2 composite particle was prepared with Titanium dioxide (TiO2), coating on brucite particles’ surfaces by mechano-chemical method. X-ray diffraction (XRD), scanning electron microscope (SEM) and infrared spectra were used to investigate the microstructures, morphologies of the composite and the reaction mechanism. The results show that the ground extent of brucite as well as the mixed particles of brucite and TiO2 should keep at a suitable state. The hiding power and whiteness of the composite particles are 17.24[Formula: see text]g/m2 and 96.88%, respectively, presenting its similarity to TiO2 in pigment properties. TiO2 coats evenly on the surfaces of brucite through surface dehydroxylation reaction during mechano-chemical method.

CHARACTERIZATION OF TALC/TiO2 COMPOSITE PARTICLE MATERIAL PREPARED BY MECHANO-CHEMICAL METHOD

2020 ◽  
pp. 2050047
Author(s):  
YU LIANG ◽  
WEIHUA AO ◽  
HAO DING ◽  
KAI SHEN
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Photoelectron Spectroscopy ◽  
Chemical Method ◽  
Composite Particle ◽  
Composite Particles ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

Talc/TiO2 composite particle was prepared with TiO2 coating on the surfaces of the talc particles by mechano-chemical method. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to investigate the microstructures and morphologies of the composite particles. The mechanism of the mechano-chemical reaction was researched by infrared spectra (IR) and X-ray photoelectron spectroscopy (XPS). The prepared talc/TiO2 composite particle has similar pigment properties compared with TiO2, with its hiding power 10.45[Formula: see text]g/cm3 and whiteness 97.49%. The results show that TiO2 coated evenly on the surfaces of the talc particles by Si–O–Ti and Mg–O–Ti bonds through surface dehydroxylation reaction.

Synthesis and Characterization of Y2O3 Nanoflowers

2012 ◽  
Vol 465 ◽  
pp. 76-79 ◽  
Author(s):  
Shuang Zhan ◽  
Xia Li
Keyword(s):  
Fourier Transform ◽  
Phase Composition ◽  
Electron Microscope ◽  
Synthesis And Characterization ◽  
The Novel ◽  
X Ray Diffraction ◽  
Facile Hydrothermal Method ◽  
X Ray ◽  
Scanning Electron

The novel Y2O3 nanoflowers were synthesized through a facile hydrothermal method without using any catalyst or template. The phase composition and the microstructure of as-prepared products were characterized by field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD) as well as Fourier transform infrared spectrum. The formation mechanism for the Y2O3 flowers has been proposed.

scholarly journals X Preparation and Characterization of Carbon-Based Composite Nanofibers for Supercapacitor

2017 ◽  
Vol 17 (2) ◽  
pp. 129-134 ◽  
Author(s):  
Dawei Gao ◽  
Lili Wang ◽  
Chunxia Wang ◽  
Yuping Chang ◽  
Pibo Ma
Keyword(s):  
Carbon Nanotubes ◽  
Phase Composition ◽  
Electron Microscope ◽  
Surface Area ◽  
Composite Nanofibers ◽  
Carbon Composite ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

Abstract Polyacrylonitrile (PAN)/Co(OAc)2/carbon nanotubes (CNTs) composite nanofibers were fabricated via electrospinning with N,N-dimethylformamide (DMF) as solvent, and by carbonization and activation of the above precursor nanofibers, porous carbon composite nanofibers were successfully obtained. Scanning electron microscope, X-ray diffraction, ASAP 2020, and Solartron 1470 were used to characterize the surface morphology, the phase composition, specific surface area, and electrochemical property of the nanofibers, respectively. The result showed that some of the fibers were broken after sintering, and the surface area and pore volume of the porous C/Cu/CNTs were 771 m2/g and 0.347 cm3/g, respectively. The specific capacitance of the composite nanofibers reached up to 210 F/g at the current density of 1.0 A/g. Its energy density and power density were 3.1 Wh/Kg and 2,337 W/Kg, respectively, at the current of 0.5 and 5 mA.

Microstructural Characterization of a Fe-Based Compostie Reinforced by TiC

2011 ◽  
Vol 675-677 ◽  
pp. 835-838
Author(s):  
Jing Wang ◽  
Si Jing Fu ◽  
Hong Cheng
Keyword(s):  
Electron Microscope ◽  
Microstructural Characterization ◽  
Interfacial Structure ◽  
Synthesis Reaction ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Tic Particle ◽  
Scanning Electron

The present work reported the preparation of TiC/Fe-based composite by the synthesis reaction from Ti, C and Fe. The sintered composites were characterized by X-ray diffraction, scanning electron microscope and transmission electron microscope. TiC, Fe3C and α-Fe were detected by X-ray diffraction analysis. The scanning and transmission electron micrographs revealed the morphology and distribution of the reinforcements, the microstructure of Fe matrix, the interfacial structure of TiC particle-to-Fe matrix. Moreover, the formation reason of the voids in composite was also discussed.

scholarly journals Characterization of Fe Doped AC/TiO2

2019 ◽  
Vol 8 (12S) ◽  
pp. 1146-1147
Keyword(s):  
Activated Carbon ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Anatase Phase ◽  
Sol Gel ◽  
Sem Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

Abstract: The photocatalytic composite Fe doped AC/TiO2 has been prepared by sol-gel method. The prepared Fe doped AC/TiO2 composite were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD).The SEM analysis showed that Fe and TiO2 were attached to the Activated Carbon surfaces. The X-Ray Diffraction data showed that Fe doped AC/TiO2 composite mostly contained anatase phase.

scholarly journals Karakterisasi Membran ZSM-5 yang Disintensis dengan Variasi Jenis dan Ukuran Kasa Penyangga

2020 ◽  
Vol 16 (1) ◽  
pp. 1
Author(s):  
Ana Hidayati Mukaromah ◽  
Tulus Ariyadi ◽  
Inas Hasna Azizah ◽  
Mifbakhuddin Mifbakhuddin
Keyword(s):  
Fourier Transform ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Energy Dispersive Spectroscopy ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Aisi 316 ◽  
Scanning Electron

<p>Telah dilakukan sintesis dan karakterisasi membran ZSM-5 dengan penyangga kasa jenis 304 ukuran 200 dan 400 mesh dan jenis kasa AISI 316 ukuran 180 mesh. Tujuan penelitian ini adalah mensintesis membran ZSM-5 dengan penyangga kasa jenis 304 ukuran 200 dan 400 mesh dan jenis kasa AISI 316 ukuran 180 mesh dan mengkarakterisasi membran ZSM-5 hasil sintesis. Sintesis membran dilakukan dengan cara melapiskan prekursor ZSM-5 (<em>coating)</em> pada penyangga kasa yang telah diberi perlakuan dan dipanaskan pada suhu 90 °C selama 4 hari. Selanjutnya, membran yang dihasilkan dikarakterisasi engan metoda <em>X-ray diffraction</em> (XRD), <em>scanning electron microscope-energy dispersive spectroscopy</em> (SEM-EDS) dan <em>Fourier-transform infrared</em> (FTIR). Hasil citra SEM-EDS menunjukkan bahwa ukuran membran ZSM-5 yang semakin besar, menghasilkan jumlah lubang atau pori semakin banyak dengan luasan pori yang semakin kecil. Pola difraksi XRD menunjukkan bahwa membran yang dihasilkan mempunyai intensitas tertinggi pada 2 8º dan 23º yang merupakan karakteristik dari ZSM-5. Hasil spektra FTIR menunjukkan adanya serapan pada bilangan gelombang 450 cm<sup>-</sup><sup>1</sup>yang merupakan ciri khas membran ZSM-5.</p><p class="Text"><strong>Characterization of ZSM-5 Membranes Synthesized by Variation of Support Types and Sizes.</strong> Synthesis and characterization of ZSM-5 membrane were carried out with 304 type 200 and 400 mesh gauze supports and 180 mesh AISI 316 gauze types. The purpose of this study was to synthesize ZSM-5 membrane with 304 type 200 and 400 mesh gauze support and AISI 316 type 180 mesh size 180 mesh and characterize the synthesized ZSM-5 membrane. Membrane synthesis was carried out by coating the pre-treated gauze support with the ZSM-5 precursor and was heated at 90 °C for 4 days. Furthermore, the resulting membrane was characterized by X-ray diffraction (XRD), scanning electron microscope-energy dispersive spectroscopy (SEM-EDS) dan Fourier-transform infrared (FTIR). The SEM-EDX analysis shows that the increasing of ZSM-5 membrane size allowed pores number to increase with smaller pore surface area. The X-ray Diffraction pattern (XRD) shows that the resulting membrane has the highest intensity at 2  of 8º and 23º as the characteristics of ZSM-5. The FTIR spectra results show absorption at wavenumbers 450 cm<sup>-1</sup> which is a characteristic of ZSM-5 membranes.</p>

scholarly journals Penggunaan ZnO/zeolit sebagai katalis dalam degradasi tartrazin secara ozonolisis

2021 ◽  
Vol 12 (1) ◽  
pp. 53-64
Author(s):  
Zilfa Zilfa ◽  
Safni Safni ◽  
Febi Rahmi
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Electron Microscope ◽  
Natural Zeolite ◽  
Zeolite Catalyst ◽  
X Ray Diffraction ◽  
X Ray ◽  
Zeolite Structure ◽  
Scanning Electron

An investigation on modification of natural zeolite with ZnO for the degradation of tartrazine. In this study, ZnO as a semiconductor is modified into a natural zeolite as support to form ZnO/zeolite that can increase the efficiency degradation of tartrazine. Further, the formed catalyst was added to tartrazine by determining the variation in ozonolysis time, the amount of addition of the catalyst, and the addition of a catalyst time. The results of degradation were determined by UV-Vis spectrophotometer at 424 nm. The result showed that the percentage of degradation obtained on each catalyst in the degradation. The resulted percent degradation of 20 ml of tartrazine at concentration of 15 mg/L using 20 mg ZnO/zeolite was 56.80%, while using 0.77 mg ZnO was 42.25%, and with the addition of 19.23 mg of Zeolite was 31.18%, all of that condition was proceeded by 40 minutes of ozonolysis. Thus, the result indicates that the ZnO/zeolite catalyst can increase percentages of tartrazine degradation by ozonolysis. It is known that the catalyst ZnO/zeolite is very effective in increasing the degradation of tartrazine. Analysis of tartrazine compounds using fourier-transform infrared spectroscopy (FTIR) after degradation changes in wavenumber indicates that there is a breaking of the bonds of tartrazine compounds. Characterization of ZnO/zeolite catalyst using FTIR, X-Ray diffraction (XRD) and scanning electron microscope (SEM), in each spectrum there was no shift, indicating that there is no change in ZnO/zeolite structure

Characterization of the Specificity in Three Commercial Dental Ceramic Powders

2017 ◽  
Vol 68 (4) ◽  
pp. 707-710
Author(s):  
Horia Manolea ◽  
Mirela Opri ◽  
Nicoleta Cioatera ◽  
Adriana Voinea ◽  
Radu Rica ◽  
...  
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
Sintered Material ◽  
Xrd Analysis ◽  
Dental Ceramics ◽  
X Ray Diffraction ◽  
Ceramic Powders ◽  
X Ray ◽  
Scanning Electron

The aim of this study was to present and discuss the characteristics of three ceramic powders as well as the sintered material from the three commercial dental ceramics produced by Vita Zahnfabrik, Germany (VM13 and VMK Master, used for veneering metal frameworks, respectivelly VM9 used for veneering zirconia frameworks). An X-ray diffraction (XRD) analysis was performed, Raman spectra were recorded and the morphology of the samples was evidenced by using a high resolution scanning electron microscope, equipped with an EDXS detector. The results of this study corroborated with the presented literature data helps practitioners to better understand the interaction of these biomaterials with oral tissues, and, also helps researchers to modify the properties of ceramics for a better integration in the intraoral condition.

Synthesis of Silver-Modified Sponge-Like Titanium Dioxide Arrays with Biomimetic Structure and its Enhanced Photocatalytic

2011 ◽  
Vol 117-119 ◽  
pp. 824-828
Author(s):  
Yu Jun Lu ◽  
Jie Mei ◽  
Wen Jun Dong ◽  
Jing Li Fu ◽  
Chao Rong Li
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Hydrothermal Reaction ◽  
X Ray Diffraction ◽  
X Ray ◽  
Potential Applications ◽  
Array Structures ◽  
Scanning Electron

The silver-modified sponge-like titanium dioxide arrays were prepared by a hydrothermal method. The effects of the hydrothermal reaction temperature, template agents were studied. The obtained products of Ag/TiO2arrays were investigated by scanning electron microscope in combination with X-ray diffraction. Results show that polyvinylpyrrolidone plays a key role in the formation of titanium dioxide arrays. Compare to the commercial P25 (Degussa), the optimized TiO2 array-structures exhibit an obvious enhanced photocatalytic activity, that enhancement is attributed to its sponge-like biomimetic structure and silver modification. The products have potential applications in degrading organic pollutants.

Microstructure Characterization of Laser Clad TiVCrAlSi High Entropy Alloy Coating on Ti-6Al-4V Substrate

2010 ◽  
Vol 154-155 ◽  
pp. 621-625 ◽  
Author(s):  
Can Huang ◽  
Yong Zhong Zhang ◽  
Rui Vilar
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Alloy Coating ◽  
High Entropy Alloy ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Entropy ◽  
Bcc Phase ◽  
Scanning Electron

Due to the promising properties of high entropy alloy, TiVCrAlSi high entropy alloy coating was prepared on Ti-6Al-4V alloy surface by laser cladding. The microstructure and phase analysis of as-cast TiVCrAlSi alloy and laser clad coating were characterized by scanning electron microscope and X-ray diffraction. The results indicate that as-cast TiVCrAlSi alloy is mainly composed of (Ti,V)5Si3 and bcc phase. The laser clad coating is metallurgically bonded to the substrate with few pores and cracks. Laser clad TiVCrAlSi coating is also composed of (Ti,V)5Si3 and bcc phases.

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