نتایج جستجو برای: tio2 cuo sio2

تعداد نتایج: 38826  

2013
Ida Pavlichenko Armin T Exner Paolo Lugli Giuseppe Scarpa Bettina V Lotsch

Thermoresponsive TiO2/SiO2 one-dimensional photonic crystals (Bragg stacks) fabricated via sol–gel processing methods represent a promising class of environmentally responsive nanostructures featuring optically encoded temperature and humidity detection. The thermo-optic response of the layer materials is amplified by their inherent porosity owing to adsorption/desorption of ambient humidity in...

2015
Ali Esfandyari Bayat Radzuan Junin Shahaboddin Shamshirband Wen Tong Chong

Engineered aluminum oxide (Al2O3), titanium dioxide (TiO2), and silicon dioxide (SiO2) nanoparticles (NPs) are utilized in a broad range of applications; causing noticeable quantities of these materials to be released into the environment. Issues of how and where these particles are distributed into the subsurface aquatic environment remain as major challenges for those in environmental enginee...

2012
Sivalingam Ramesh Arumugam Sivasamy Joo-Hyung Kim

Maleimide-functionalized polystyrene (PSMA-SiO2/TiO2) hybrid nanocomposites were prepared by sol-gel reaction starting from tratraethoxysilane (TEOS) and titanium isopropoxide in the solution of polystyrene maleimide in 1,4-dioxane. The hybrid films were obtained by the hydrolysis and polycondensation of TEOS and titanium isopropoxide in maleimide-functionalized polystyrene solution followed by...

2011
J S Lindeløv

Suspensions of nanoparticles (SiO2, SiC, TiO2, CNT, Nanoclay and Hydroxyapatite) were spray dried to produce dry granulated products. The nanoparticles were consolidated in granules making them more convenient and safer to use in further processing compared to handling of nanopowders.

Journal: :Bioresource technology 2014
Lijie Zhou Zhiqiang Zhang Siqing Xia Wei Jiang Biao Ye Xiaoyin Xu Zaoli Gu Wenshan Guo Huu-Hao Ngo Xiangzhou Meng Jinhong Fan Jianfu Zhao

Effects of the suspended titanium dioxide nanoparticles (TiO2 NPs, 50 mg/L) on the cake layer formation in a submerged MBR were systematically investigated. With nanometer sizes, TiO2 NPs were found to aggravate membrane pore blocking but postpone cake layer fouling. TiO2 NPs showed obvious effects on the structure and the distribution of the organic and the inorganic compounds in cake layer. C...

Journal: :Catalysts 2022

In order to improve the photocatalytic activity of TiO2, we successfully loaded nano-CuO on TiO2 nanomeshes as CuO-TiO2 nanocomposites through a facile electrodeposition method. The optimized calcined temperature after Cu is confirmed 450 °C, which could furthest assist crystallization anatase and guarantee high nanocomposites. Comparing with pure nanomeshes, showed better degradability methyle...

ژورنال: نانو مواد 2017
زهره سعادتی لیلا اسدی

در این پژوهش ابتدا نانوکامپوزیت SiO2/TiO2/پوسته فندق به عنوان جاذب، سنتز شده است و مشخصات مورفولوژی آن با استفاده ازSEM و  FTIRمورد بررسی قرار گرفته است. نتایج حاکی از تشکیل ساختار آمورف نانوکامپوزیت و ساختار غیرهمگن است. هدف، ایجاد شرایط آزمایشگاهی برای حذف رنگ نساجی از محلول آبی به واسطه جذب آن توسط نانوکامپوزیت SiO2/TiO2/پوسته فندق بوده است. جذب مالاکیت سبز ما را به ارزیابی تأثیرpH  ابتدایی،...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده شیمی 1387

در این پروژه، پـــوشش های نازکی از نانو ذرات tio2 و tio2/sio2 با روش سل- ژل سنتز شده اند بر روی قالب های بتنی و قالب های ساخته شده از سیمان سفید و آلومینا لایه نشانی گردیده اند. نانوپودرهای tio2 وtio2/sio2 با اشعه ایکس شناسایی شده و اندازه ی بلورهای بدست آمده با استفاده از معادله شرر در حدود 5/11 نانومتر تخمین زده می شود. همچنین کاتالیزورهای سنتز شده با روش های xrd، ft-ir ، uv-vis و sem مورد...

Journal: :avicenna journal of medical biochemistry 0
zohre alijanian department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran; department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran. tel: +98-3137420136 nasrin talebian department of chemistry, faculty of biological science, shahreza branch, islamic azad university, shahreza, isfahan, ir iran monir doudi department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran

conclusions increasing the cu nanoparticles in bioactive glass samples leads to the release of cu2+, which has a positive effect on the antibacterial mechanism, as well as decreasing the cultured staphylococcus colonies found on the bioglasses. therefore, it seems that the nanocomposite/bioglass of cuo is a promising option for aerobic bacterial inhibitor systems in common bone implant infectio...

اسرافیلی, علی, خسروی, سعیده, عبدالرحیمی, قدیر, غلامی, میترا, فرزادکیا, مهدی,

Background and purpose: Photocatalysis process with TiO2 is a well-known method for removal of pollutants from water. However, the small particle size of TiO2, and therefore difficulty in its separation after treatment impede its commercialization. The aim of this study was to synthetize the Fe3O4@SiO2@TiO2 magnetic nanoparticles (NPs) and evaluation of its efficiency in removal of metronidazol...

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