Fabrication and characterization of a zirconia/multi-walled carbon nanotube mesoporous composite

Wang, Zonghua; Xia, Jianfei; Xia, Yanzhi; Lu, Cai-Yu; Shi, Guoyu; Zhang, Feifei; Zhu, Fuqiang; Li, Yanhui; Xia, Linhua; Tang, Jie

doi:10.1016/j.msec.2013.05.031

Cited by 11 publications

(2 citation statements)

References 37 publications

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“…Figures 2(c atching with (110) confirms the presence of both orthorhombic V 2 O 5 and graphite structure of MWCNTs and is in accordance with reported literature about it [26,28]. Figure 3(a) shows the PXRD pattern of ZrO 2 /acid-treated MWCNTs (ratio 1 : 3 wt.%) with peak at 2θ � 26.2°assigned to (002) reflection plane of graphite structure of MWCNTs [29]. Moreover, the peaks appeared at 2θ angle 28…”

Section: Resultssupporting

confidence: 88%

Structural and Morphological Studies of V2O5/MWCNTs and ZrO2/MWCNTs Composites as Photocatalysts

Iqbal

Bokhari

Latif

et al. 2021

Journal of Chemistry

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The present study outlines the synthesis of transition metal oxide- (TMO-) multiwall carbon nanotubes- (MWCNTs-) based composites for photocatalytic application. MWCNTs were functionalized/purified by treating with H2SO4 and HNO3 to improve their dispersion in water. The TMOs (ZrO2, V2O5) were decorated on MWCNTs by the hydrothermal method to yield V2O5/MWCNTs and ZrO2/MWCNTs composites. Subsequently, these composites were characterized for their structural/morphological studies by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Photocatalytic activities of TMO/MWCNTs composites were investigated by degradation phenomenon of methylene blue (MB) dye in aqueous solution. It was observed that the prepared composites best performed in the presence of H2O2 under ultraviolet irradiation. The maximum observed degradation efficiencies for ZrO2/MWCNTs and V2O5/MWCNTs were 49% and 96%, respectively.

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Section: Resultssupporting

confidence: 88%

Structural and Morphological Studies of V2O5/MWCNTs and ZrO2/MWCNTs Composites as Photocatalysts

Iqbal

Bokhari

Latif

et al. 2021

Journal of Chemistry

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“…Industry has experienced a wide range of materials applied for ceramic restoration purposes; however, zirconia is mostly favorable [12,13], mainly due to the high capacity of transformation toughening which assists in preventing cracks development through the improvement of material capability of resisting localized fracture. It naturally occurs in three arrangements based on temperature; these are the monoclinic (at 25-1170℃), tetragonal (at 1170-2370℃), and cubic (at 2370℃-melting point) [14,15]. At room temperature, Zirconia in t-form offers the best mechanical characteristics of the three forms, while stabilized oxides, for example, CaO, MgO, and Y2O3, are utilized to stabilize it in this form [12,16].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Dental Ceramic Prostheses with Zirconia Nanocomposites: An In-Vitro Study on Hard Tissue Rehabilitation

Hammed,

Abbood,

Majeed

2024

ACSM

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Researchers and clinicians have directed most efforts towards rehabilitating partially or completely edentulous patients to provide them with functionality and self-esteem. The objective of this work was to create two distinct kinds of nano composites employing two different kinds of polycrystalline zirconia reinforcing materials. First strengthened using sol-gel-synthesized zinc oxide nanoparticles. Secondly, precipitated amorphous silica nanoparticles. To develop the composite material, (3 mol. Y2O3) was mixed with zirconia to stabilize it in the tetragonal phase with homogeneous distribution, The ZnO NPs and SiO2 NPs were then added in varied weight rates. To yield 3 mol.Y2O3-ZrO2-ZnONPs and 3 mol.Y2O3-ZrO2-SiO2NPs nano composites samples of 10 mm diameter, uniaxial pressing was applied in a metal-die cylinder at a pressure of 5 tons. The obtained samples were then sintered in air in an electrically controlled furnace for 2 hrs at a temperature of 1400℃, while the heating and cooling rates were 5℃/min. Density, porosity, and Vickers micro hardness were used to evaluate the physical and mechanical properties of the obtained samples. XRD and FE-SEM were applied to analyze the produced samples. The results showed that there was an increase in micro hardness recorded for both reinforcement groups after applying zinc oxide NPs and silica NPs. Further improvement in densification can also be emphasized. Our study demonstrates that using nanotechnology to improve clinical performance represents a potential strategy and promising approach to enhance all-ceramic restorations.

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Novel hydrophilic PVDF ultrafiltration membranes based on a ZrO2–multiwalled carbon nanotube hybrid for oil/water separation

Yang

Zeng

et al. 2016

J Mater Sci

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Fabrication and characterization of a zirconia/multi-walled carbon nanotube mesoporous composite

Cited by 11 publications

References 37 publications

Structural and Morphological Studies of V2O5/MWCNTs and ZrO2/MWCNTs Composites as Photocatalysts

Structural and Morphological Studies of V2O5/MWCNTs and ZrO2/MWCNTs Composites as Photocatalysts

Enhancing Dental Ceramic Prostheses with Zirconia Nanocomposites: An In-Vitro Study on Hard Tissue Rehabilitation

Novel hydrophilic PVDF ultrafiltration membranes based on a ZrO2–multiwalled carbon nanotube hybrid for oil/water separation

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