نتایج جستجو برای: pseudo tube tio2

تعداد نتایج: 167709  

Journal: :international journal of nanoscience and nanotechnology 2015
e. soroodan miandoab sh. fatemi

nanocomposites of multi-walled carbon nanotubes and titanium dioxide (mwcnt/tio2) were synthesized by the sol-gel method. regarding hydrophobicity of carbon nanotubes (cnts), benzyl alcohol was used as the linking agent between cnt powder and tio2 gel which was prepared from the precursor of titanium tetraisopropoxide. the prepared samples were treated under thermal treatments. a part of the sa...

E. Soroodan Miandoab Sh. Fatemi

Nanocomposites of multi-walled carbon nanotubes and titanium dioxide (MWCNT/TiO2) were synthesized by the sol-gel method. Regarding hydrophobicity of carbon nanotubes (CNTs), benzyl alcohol was used as the linking agent between CNT powder and TiO2 gel which was prepared from the precursor of titanium tetraisopropoxide. The prepared samples were treated under thermal treatments. A part of the sa...

2017
Cong Qi Chunyang Li Guiqing Wang

The flow and heat transfer characteristics of TiO2-water nanofluids with different nanoparticle mass fractions in a spirally fluted tube and a smooth tube are experimentally investigated at different Reynolds numbers. The effects of pH values and doses of dispersant agent on the stability of TiO2-water nanofluids are discussed. The effects of nanoparticle mass fractions and Reynolds numbers on ...

Journal: :international journal of nano dimension 0
p. gharbani department of chemistry, ahar branch- islamic azad university, ahar, iran. s.m. tabatabaei department of chemistry, ahar branch- islamic azad university, ahar, iran. s. dastmalchi 2biotechnology research center,tabriz university of medical science,tabriz,iran. s. ataie m.sc. student, department of chemistry, ahar branch-islamic azad university, ahar, iran. a. mosenharzandi quality control lab, water & wastewater co., abiary street, elgoli road, tabriz, iran. a. mehrizad department of chemistry, science and research branch-islamic azad university, tabriz, iran.

in this study, nano-tio2 was employed for the adsorption of chloroform from aqueous solution in batch equilibrium experiments to investigate its adsorption properties. the effects of ph, initial chloroform concentration and nano-tio2 dosage were also investigated. optimal conditions for chloroform removal by nano-tio2 have been then identified. results of equilibrium experiments showed that the...

2015
Tsuyoshi Ochiai Shoko Tago Mio Hayashi Hiromasa Tawarayama Toshifumi Hosoya Akira Fujishima

A simple, convenient, reusable, and inexpensive airand water-purification unit including a one-end sealed porous amorphous-silica (a-silica) tube coated with TiO2 photocatalyst layers has been developed. The porous a-silica layers were formed through outside vapor deposition (OVD). TiO2 photocatalyst layers were formed through impregnation and calcination onto a-silica layers. The resulting por...

A. Mehrizad A. Mosenharzandi P. Gharbani, S. Ataie S. Dastmalchi S.M. Tabatabaei

In this study, nano-TiO2 was employed for the adsorption of chloroform from aqueous solution in batch equilibrium experiments to investigate its adsorption properties. The effects of pH, initial chloroform concentration and nano-TiO2 dosage were also investigated. Optimal conditions for chloroform removal by nano-TiO2 have been then identified. Results of equilibrium experiments showed that the...

A. Mehrizad A. Mosenharzandi P. Gharbani, S. Ataie S. Dastmalchi S.M. Tabatabaei

In this study, nano-TiO2 was employed for the adsorption of chloroform from aqueous solution in batch equilibrium experiments to investigate its adsorption properties. The effects of pH, initial chloroform concentration and nano-TiO2 dosage were also investigated. Optimal conditions for chloroform removal by nano-TiO2 have been then identified. Results of equilibrium experiments showed that the...

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...

2016
Murtaza Sayed Ali Shah Asad Muhammad Khan Ali Khan Abdur Rahman Khan Mahmood Khan

This study investigates the decomposition of clofibric acid (CLF) by different advanced oxidation processes (AOPs), such as UV (254nm), VUV (185 nm), UV / TiO2 and VUV / TiO2. The removal efficiencies of applied AOPs were compared in the presence and absence of dissolved oxygen. The removal efficiency of the studied AOPs towards degradation of CLF were found in the order of VUV / TiO2 + O2 > VU...

2007
R. R. Giri H. Ozaki S. Taniguchi R. Takanami

More effective techniques are required to mineralize the increasing number of recalcitrant organic contaminants at low concentrations in the water environment using advanced oxidation process. Though relatively new, photocatalytic ozonation (O3/UV/TiO2) is considered superior to ozonation (O3) and photocatalysis (UV/TiO2), due to synergistic effects and use of immobilized TiO2 photocatalysts is...

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