نتایج جستجو برای: tio2 nano powders

تعداد نتایج: 82147  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
hassan hadadzadeh mehdi shafiee afarani mehri ekrami

the combustion process of tio2- 2mg- c and 3tio2-4al-3c systems in a tubular furnace was investigated. tic has been synthesized by the magnesiothermic reaction from a mixture of compacted powders of tio2, mg and charcoal as starting materials in the presence and absence of nacl. the effects of temperature, pressure, and the stoichiometry ratio in the reaction yield have been studied. the result...

Abstarct  In this paper, effect of mechanical activation on microwave reactive sintering of MgO - TiO2 system was investigated. Mixtures of MgO and TiO2 were milled at different times. Mixed powders along with 10 h milled powders were chosen for microwave sintering between 1000- 1400⁰C. Results showed that increasing of temperature up to 1400̊C for mixed powders could not give rise to complete f...

2013
Katarzyna SIWINSKA-STEFANSKA Dominik PAUKSZTA Adam PIASECKI Teofil JESIONOWSKI K. Siwinska-Stefanska D. Paukszta A. Piasecki T. Jesionowski

The paper details with of the preparation and physicochemical characterisation of nanoand microstructured TiO2 doped with Fe and Co produced by the sol-gel method using titanium alkoxide as the precursor of titania as well as iron or cobalt nitrates as dopant sources. Fe and Co doped TiO2 materials were successfully prepared with two different methods. The effect of the dopant type on the synth...

Deep eutectic solvents (DESs) have always been attractive to scientists due to their wide range of applications, a great interest in diverse fields including nanotechnology due to their unique properties as new green solvents. It used large-scale for chemical and electrochemical synthesis nanomaterial. DESs have had also active role in improving the size and morphology of nanomaterial during sy...

Journal: :Chemical communications 2016
Liping Wang Jianchao Lee Meijuan Zhang Qiannan Duan Jiarui Zhang Hailang Qi

A high-throughput screening (HTS) method based on fluorescence imaging (FI) was implemented to evaluate the catalytic performance of selenide-modified nano-TiO2. Chemical ink-jet printing (IJP) technology was reformed to fabricate a catalyst library comprising 1405 (Ni(a)Cu(b)Cd(c)Ce(d)In(e)Y(f))Se(x)/TiO2 (M6Se/Ti) composite photocatalysts. Nineteen M6Se/Tis were screened out from the 1405 can...

Journal: :Journal of the Ceramic Society of Japan 2007

2017
Tian Hang Hui-Jiuan Chen Shuai Xiao Chengduan Yang Meiwan Chen Jun Tao Han-Ping Shieh Bo-Ru Yang Chuan Liu Xi Xie

Extraordinary water-repelling properties of superhydrophobic surfaces make them novel candidates for a great variety of potential applications. A general approach to achieve superhydrophobicity requires low-energy coating on the surface and roughness on nano- and micrometre scale. However, typical construction of superhydrophobic surfaces with micro-nano structure through top-down fabrication i...

2013
A Sivakumar R Murugan K Sundaresan S Periyasamy

Ultra-violet protection and self-cleaning action of nano zinc oxide (ZnO) and titanium di-oxide (TiO2) with acrylic binder has been assessed on the cotton fabric using pad-dry-cure method. Different precursors, such as zinc acetate and titanium tetrachloride have been used to synthesize nanoparticles. Zinc acetate is synthesized into nanoparticle by wet chemical technique and titanium tetrachlo...

2004
Walter Den Hsunling Bai

Gas-phase photocatalysis using titanium dioxide (TiO2) has been regarded as an attractive technology for the control of VOC emissions. However, TiO2 requires ultraviolet irradiation exceeding the bandgap energy of 3.0 eV (wavelength < 400 nm), hence effectively eliminating the utilization of solar and interior lighting as a source of photo-activation energy. Recently, a number of studies have d...

2011
F. Ghanbary A. Jafarian

This paper presents a study on the preparation method for Ag-TiO2 nano particles. Photodeposition of silver on TiO2 nanoparticles was carried out by adding a desired volume of aqueous AgNO3. Ag-deposited TiO2 catalyst was characterised by XRD, TEM, SEM. The Ag-TiO2 catalyst was evaluated for their photocatalytic activity towards the degradation of Malachite green (MG) under UV irradiation. An a...

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