نتایج جستجو برای: tio2 nano particles

تعداد نتایج: 221258  

This research report related to nano-sized particles of tetragonal rutile phase TiO2. We havesuccessfully synthesized TiO2 nanoparticles, by chemical method non-toxic and bio-safe, at lower than 100°C. This method is simple, economic and friendly for environmentally and suitable for large scale grains. Using of choline chloride, to decrease the size of commercial TiO2 by chemical method. ...

2017
Jiao-xia Zhang Si Liu Chao Yan Xiao-jing Wang Lei Wang Ya-ming Yu Shi-yun Li

Considering the excellent solubility of pyrrolidone ring organic compounds, the synthesized N(trimethoxysilyl) propyl-N-methyl-2-pyrrolidone chlorides was tethered onto titanium dioxide (TiO2) nanoparticles to improve dispersion of TiO2, and then polyethylene oxide (PEO) oligomer through ion exchange embraced the tethered TiO2 to obtain a novel self-suspended hairy TiO2 nanomaterials without an...

2015
G. R. Raghav N. Selvakumar K. Jeyasubramanian M. R. Thansekhar

The corrosion resistant coatings used conventionally are susceptible to degradation, leading to pitting corrosion. This report summarizes the corrosion resistant nature of thin films of Cu-TiO2 coated on mild steel, in different corrosion environments. Nano meter thick (100nm, 125nm, 150nm) composite coatings were coated on steel substrate by RF magnetron sputtering technique. The required targ...

Journal: :نشریه بازیافت آب 0
اعظم یوسفی تهران، دانشگاه علم و صنعت ایران، مرکز تحقیقات سیمان

the photocatalytic activity of nano-tio2 has been used in inactivation of microorganisms, mainly in the form of suspension in a liquid or partially in an immobilized system. using advanced oxidation processasa new approach has been used in the purification of water and wastewater. in this research, the systems of suspended (0.1 g/l) and immobilized nano-tio2 in the cement bed (0.1-2%) under a 1...

2014
Jutta Kockler

Sunscreen products often contain combinations of ultraviolet (UV)-filters in order to achieve broad spectrum protection from exposure to sunlight. The inclusion of both chemical and physical UV-filters in these products, however, increases the possibility for both photolytic and photocatalytic reactions to occur. This study investigated the effect of titanium dioxide (TiO2) particle size on the...

2015
Janusz Bogdan Agnieszka Jackowska-Tracz Joanna Zarzyńska Joanna Pławińska-Czarnak

Nanotechnology is a field of science that is nowadays developing in a dynamic way. It seems to offer almost endless opportunities of contribution to many areas of economy and human activity, in general. Thanks to nanotechnology, the so-called nanomaterials can be designed. They present structurally altered materials, with their physical, chemical and biological properties entirely differing fro...

2017
Jiai Ning Di Wu Degang Zhao

Thermoelectric (TE) materials are a kind of energy material which can directly convert waste heat into electricity based on TE effects. Ternary Cu2SnSe3 material with diamond-like structure has become one of the potential TE materials due to its low thermal conductivity and adjustable electrical conductivity. In this study, the Cu2SnSe3 powder was prepared by vacuum melting-quenching-annealing-...

2005
Shoji NAGAOKA Kenji ARINAGA Hiromi KUBO Shigenori HAMAOKA Toshihiko SAKURAI Makoto TAKAFUJI Hirotaka IHARA

Cellulose/TiO2 hybrid spherical microbeads were prepared by a one-step phase separation method using a cellulose xanthate aqueous solution and a sodium polyacrylate aqueous solution. Various types of cellulose/ TiO2 hybrid spherical microbeads were obtained by using the several kinds of TiO2 particles. The resulting hybrid spherical microbeads showed respective differences in the distribution o...

Journal: :Angewandte Chemie 2016
Mohammad Aref Khalily Hamit Eren Serdar Akbayrak Hepi Hari Susapto Necmi Biyikli Saim Özkar Mustafa O Guler

Three-dimensional (3D) porous metal and metal oxide nanostructures have received considerable interest because organization of inorganic materials into 3D nanomaterials holds extraordinary properties such as low density, high porosity, and high surface area. Supramolecular self-assembled peptide nanostructures were exploited as an organic template for catalytic 3D Pt-TiO2 nano-network fabricati...

2008
Carmen Irina Vamanu Paul Johan Høl Zouhir Ekeland Allouni Said Elsayed Nils Roar Gjerdet

Degradation products of titanium implants include free ions, organo-metallic complexes, and particles, ranging from nano to macro sizes. The biological effects, especially of nanoparticles, is yet unknown. The main objective of this study was to develop Ti-protein antigens in physiological solutions that can be used in testing of cellular responses. For this purpose, 0.1% TiO2 nanoparticles les...

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