نتایج جستجو برای: titanium dioxide tio 2

تعداد نتایج: 2619402  

Journal: :Journal of photochemistry and photobiology 2022

• Titanium dioxide/Metal Organic Framework was synthesized by a simple sol-gel method. Optical studies of TiO 2 / MOF using UV-Vis spectrometer. HOMO-LUMO energies evaluation CV. Conductivity and lifetime measurement EIS Photo conversion efficiency MOF. The titanium dioxide-metal-organic framework (TiO -MOF) composite prepared the method for photovoltaic applications. Raman analyses showed pres...

1999
Eugene V. Stefanovich Thanh N. Truong

Ž . Ab initio embedded cluster calculations of water interaction with the TiO 110 surface predict that molecular adsorption 2 is more favorable than dissociative chemisorption. Unlike all previous calculations, this result is in agreement with recent temperature-programmed desorption and modulated beams experiments. Calculated surface relaxation, water adsorption energy and the densities of ele...

Journal: :Optics letters 2010
Steven Foland Kyung-Hak Choi Jeong-Bong Lee

A method of tuning a one-dimensional guided-mode resonance grating through the use of an air-pressure-responsive membrane is demonstrated here using finite-element method simulation. The device consists of a titanium dioxide (TiO(2)) grating structure embedded in a flexible polydimethylsiloxane membrane. This grating has a resonant response to TM-polarized light at a wavelength dependent upon t...

Journal: :IOP conference series 2023

Abstract Ilmenite is found in the form of iron sand with reserves 927,315,827 tons spread across several regions Indonesia, including Banten which has seven million sand. This mineral can be used as a raw material for making TiO 2 pigments. The problem faced use its complex structure causes difficulties at processing stage. synthesis from ilmenite ore commonly sulfate process and chloride proce...

2016
Mi-Rae Jo Jin Yu Hyoung-Jun Kim Jae Ho Song Kyoung-Min Kim Jae-Min Oh Soo-Jin Choi

Titanium dioxide (TiO₂) nanoparticles (NPs) have been widely applied in various industrial fields, such as electronics, packaging, food, and cosmetics. Accordingly, concerns about the potential toxicity of TiO₂ NPs have increased. In order to comprehend their in vivo behavior and potential toxicity, we must evaluate the interactions between TiO₂ NPs and biomolecules, which can alter the physico...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2009
Sheetal A Thakur Raymond Hamilton Timo Pikkarainen Andrij Holian

Alveolar macrophages (AM) in the lung have been documented to play pivotal roles in inflammation and fibrosis (silicosis) following inhalation of crystalline silica (CSiO(2)). In contrast, exposure to either titanium dioxide (TiO(2)) or amorphous silica (ASiO(2)) is considered relatively benign. The scavenger receptor macrophage receptor with collagenous structure (MARCO), expressed on AM, bind...

2014
Agda Marobo Andreotti Marcelo Coelho Goiato Amália Moreno Adhara Smith Nobrega Aldiéris Alves Pesqueira Daniela Micheline dos Santos

The aim of this study was to assess the effect of adding nanoparticles to N1 acrylic resin intended for artificial sclera, in terms of the color stability, microhardness, and flexural strength of the resin. Three hundred samples of N1 acrylic resin were used: 100 samples for color stability and microhardness tests (each test was performed on the opposite side of each sample), and 200 samples fo...

2017
Adan Luna-Flores José L. Sosa-Sánchez Marco Antonio Morales-Sánchez Ricardo Agustín-Serrano J. A. Luna-López

The search for novel materials and the development of improved processes for water purification have attracted the interest of researchers worldwide and the use of titanium dioxide in photocatalytic processes for the degradation of organic pollutants contained in water has been one of the benchmarks. Compared to crystalline titanium dioxide (cTiO₂), the amorphous material has the advantages of ...

2014
Yanyun Fu Yanqiu Zhang Xuhong Chang Yingjian Zhang Shumei Ma Jing Sui Lihong Yin Yuepu Pu Geyu Liang

The potential immune effects of titanium dioxide nanoparticles (nano-TiO₂) are raising concern. Our previous study verified that nano-TiO₂ induce local immune response in lung tissue followed by intratracheal instillation administration. In this study, we aim to evaluate the systemic immune effects of nano-TiO₂. Sprague Dawley rats were treated by intratracheal instillation with nano-TiO₂ at do...

2017
Nur Hamidah Abdul Halim Yook Heng Lee Radha Swathe Priya Malon Marugan Uda Hashim

An impedimetric-based biosensor constructed using gold nanoparticles (AuNP) entrapped within titanium dioxide (TiO₂) particles for hydrogen peroxide (H₂O₂) detection is the main feature of this research. The matrix of the biosensor employed the surface of TiO₂, which was previously modified with an amine terminal group using 3-Aminopropyltriethoxysilane (APTS) at a low temperature to create a r...

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