نتایج جستجو برای: tio2 nanopowder

تعداد نتایج: 23249  

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2015
Natarajan Prakash Rajan Karthikeyan Dheivasigamani Thangaraju Mani Navaneethan Mukannan Arivanandhan Tadanobu Koyama Yasuhiro Hayakawa

Erbium co-doped TiO2 /Ag catalysts are synthesized by using a simple, one-step solvothermal method and characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, Raman analysis, X-ray photoelectron spectroscopy, and diffuse reflectance spectroscopy. The catalysts exhibit anatase crystal structures with increased visible light absorption co...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2015
Neerugatti KrishnaRao Eswar Praveen Chandrashekarapura Ramamurthy Giridhar Madras

This study demonstrates the synthesis of TiO2 nanobelts using solution combustion derived TiO2 with enhanced photocatalytic activity for dye degradation and bacterial inactivation. Hydrothermal treatment of combustion synthesized TiO2 resulted in unique partially etched TiO2 nanobelts and Ag3PO4 was decorated using the co-precipitation method. The catalyst particles were characterized using X-r...

Journal: :Dalton transactions 2013
Changhua An Wen Jiang Jizhuang Wang Shutao Wang Zhanhua Ma Yanpeng Li

Three-dimensional (3D) TiO2 with an acanthosphere-like morphology composed of nanothorns has been used as a suitable support to fabricate a visible-light-induced 3D AgI@TiO2 nanophotocatalyst. The structural characterization revealed that the size of the obtained AgI@TiO2 nanocomposite was close to that of pristine TiO2 particles, where AgI nanoparticles were evenly dispersed on the surfaces of...

2014
Mang Niu Daojian Cheng Dapeng Cao

We use hybrid density functional calculations to find that the monolayer silicane (SiH) and the anatase TiO2(101) composite (i.e. the SiH/TiO2 heterojunction) is a promising TiO2-based photocatalyst under visible light. The band gap of the SiH/TiO2(101) heterojunction is 2.082 eV, which is an ideal material for the visible-light photoexcitation of electron-hole pairs. Furthermore, the SiH/TiO2(...

2013
Zheng Li Xiaobo Pan Tianlong Wang Pei-Nan Wang Ji-Yao Chen Lan Mi

The killing effect of nitrogen-doped titanium dioxide (N-TiO2) nanoparticles on human cervical carcinoma (HeLa) cells by visible light photodynamic therapy (PDT) was higher than that of TiO2 nanoparticles. To study the mechanism of the killing effect, the reactive oxygen species produced by the visible-light-activated N-TiO2 and pure-TiO2 were evaluated and compared. The changes of the cellular...

2017
Shih-Yun Liao Ya-Chu Yang Sheng-Hsin Huang Jon-Yiew Gan

Pt@TiO2@CNTs hierarchical structures were prepared by first functionalizing carbon nanotubes (CNTs) with nitric acid at 140 °C. Coating of TiO2 particles on the CNTs at 300 °C was then conducted by atomic layer deposition (ALD). After the TiO2@CNTs structure was fabricated, Pt particles were deposited on the TiO2 surface as co-catalyst by plasma-enhanced ALD. The saturated deposition rates of T...

Journal: :Journal of Physics: Conference Series 2021

Aim: synthesis, characterization, and application of modifying nanocomposite TiO2 doped with Magnesium for photodegradation antioxidant system Larvae Pupae Aedes Aegypti Catalysts Preparation Mg-doped to determine activity oxidative stress (MDA) glutathione S Transferase, were known as a parameter defense resistance immune maintained. This study was undertaken assess the potential role growth s...

2014
Woong-Rae Kim Hun Park Won-Youl Choi

TiO2 micro-flowers were made to bloom on Ti foil by the anodic oxidation of Ti-protruding dots with a cylindrical shape. Arrays of the Ti-protruding dots were prepared by photolithography, which consisted of coating the photoresists, attaching a patterned mask, illuminating with UV light, etching the Ti surface by reactive ion etching (RIE), and stripping the photoresist on the Ti foil. The pro...

Journal: :ACS nano 2017
Shaozhuan Huang Lin Zhang Xueyi Lu Lifeng Liu Lixiang Liu Xiaolei Sun Yin Yin Steffen Oswald Zhaoyong Zou Fei Ding Oliver G Schmidt

Nanostructured TiO2 of different polymorphs, mostly prepared by hydro/solvothermal methods, have been extensively studied for more than a decade as anode materials in lithium ion batteries. Enormous efforts have been devoted to improving the electrical conductivity and lithium ion diffusivity in chemically synthesized TiO2 nanostructures. In this work we demonstrate that 3D Ti3+-self-doped TiO2...

2011
Zheng Li Lan Mi Pei-Nan Wang Ji-Yao Chen

Nitrogen-doped TiO2 (N-TiO2) nanoparticles were prepared by calcining the anatase TiO2 nanoparticles under ammonia atmosphere. The N-TiO2 showed higher absorbance in the visible region than the pure TiO2. The cytotoxicity and visible-light-induced phototoxicity of the pure- and N-TiO2 were examined for three types of cancer cell lines. No significant cytotoxicity was detected. However, the visi...

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