نتایج جستجو برای: آرایه ی نانوذره ای tio2

تعداد نتایج: 313334  

2011
W. J. Basirun Y. Alias M. Ebadi

We have chemically polymerized pyrrole in the presence of Sn-doped TiO2 nanoparticles (NPs) and TiO2 (NPs) which act as a protective pigment. Field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) results show a core–shell structure of pigments in which TiO2 and Sn-doped TiO2 NPs have a nucleus effect and caused a homogenous PPy core–shell type morphology...

ژورنال: آب و فاضلاب 2019

4-کلروفنل یکی از ترکیبات سمّی خانواده کلروفنل‌هاست که در پساب فاضلاب‌های تولید شده در صنایع پتروشیمی، پالایشگاه‌های نفت، صنایع داروسازی و صنایع فراوری چوب و کاغذ تولید و به منابع آب‌های سطحی و زیر زمینی وارد می‌شود. این پژوهش با هدف بررسی امکان استفاده از نانو ذره آهن به‌منظور فعال‌سازی اکسیدان‌های پراکسید هیدروژن و پرسولفات در حضور امواج  UVA-LED به‌منظ...

2014
Zatil Amali Che Ramli Nilofar Asim Wan N. R. W. Isahak Zeynab Emdadi Norasikin Ahmad-Ludin M. Ambar Yarmo K. Sopian

This study involves the investigation of altering the photocatalytic activity of TiO2 using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO2/PANi prepared by in situ polymerization method, while the TiO2/activated carbon (TiO2/AC) was obtaine...

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...

2011
Rengasamy Velmurugan Bojja Sreedhar Meenakshisundaram Swaminathan

The AgBr loaded TiO2 catalyst was prepared by a feasible approach with AgBr and tetraisopropyl orthotitanate and characterized by BET surface area measurement, diffuse reflectance spectra (DRS), scanning electron microscope (SEM), energy dispersive spectra (EDS), X-ray diffraction (XRD), transmission electron microscope (TEM) and atomic force microscope (AFM) analysis. The results of characteri...

Journal: :Journal of hazardous materials 2014
Peng Gao Anran Li Darren Delai Sun Wun Jern Ng

The nanostructures of TiO2 significantly affect its photocatalytic activity. In this work, various TiO2 nanostructures have been successfully synthesized, including one-dimensional (1D) TiO2 nanotube, 1D TiO2 nanowire, three-dimensional (3D) TiO2 sphere assembled by nanoparticles (TiO2 sphere-P) and 3D TiO2 sphere assembled by nanosheets (TiO2 sphere-S). The results of photodegradation activity...

Journal: :Molecules 2014
Dmitry Selishchev Denis Kozlov

Composite TiO2/activated carbon (TiO2/AC) and TiO2/SiO2 photocatalysts with TiO2 contents in the 10 to 80 wt. % range were synthesized by the TiOSO4 thermal hydrolysis method and characterized by AES, BET, X-ray diffraction and FT-IR ATR methods. All TiO2 samples were in the anatase form, with a primary crystallite size of about 11 nm. The photocatalytic activities of the TiO2/AC and TiO2/SiO2 ...

اشرف موسوی لر الیاس صفاران مرجان نوروزی زاده

تزئین به عنوان یکی از مهم ترین مراحل تکامل هنر و معماری اسلامی، بر دیوارها و سطوح داخلی و خارجی بنا، نسبت به دیگر عناصر معماری اولویت خاصی دارد. تزئین ها گنجینه ای از نقوش هستند که علاوه بر ارزش ها و زیبایی ها، بیانگر معانی و هدف خاص در معماری اسلامی به ویژه امامزاده ها محسوب می شود. استان خوزستان به عنوان دروازه ی ورود تشیع به ایران با وجود مکان های مقدسی چون امام زاده ها و نوادگان آن ها یکی ا...

2016
Xu Liu Weijie Duan Yan Chen Shihui Jiao Yue Zhao Yutang Kang Lu Li Zhenxing Fang Wei Xu Guangsheng Pang

Porous TiO2 were assembled by evaporating or refluxing TiO2 colloid, which was obtained by dispersing the TiO2 nanoparticles with a crystallite size (d XRD) of 3.2 nm into water or ethanol without any additives. Porous transparent bulk TiO2 was obtained by evaporating the TiO2-C2H5OH colloid at room temperature for 2 weeks, while porous TiO2 nanospheres were assembled by refluxing the TiO2-H2O ...

2016
Kexin Wang Changlu Shao Xinghua Li Fujun Miao Na Lu Yichun Liu

Figure S1. Time‐dependent UV‐vis absorbance spectra of the MO solution in the presence (a) TiO2; (b) BiOI/TiO2‐C10; (c) BiOI/TiO2‐C20; (d) BiOI/TiO2‐C30; (e) mechanical mixture of BiOI and TiO2 (M‐BT) under UV light irradiation; (f) EDX of BiOI/TiO2‐C30 (Bi:Ti = 0.4:1).

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