نتایج جستجو برای: magnetic photocatalyst

تعداد نتایج: 342535  

2012
J. C. Ferrer F. Peiró J. R. Morante F. Briones

Related Articles Nano-lithography free formation of high density Ge-on-insulator network for epitaxial template Appl. Phys. Lett. 100, 092111 (2012) Thermal properties of the hybrid graphene-metal nano-micro-composites: Applications in thermal interface materials Appl. Phys. Lett. 100, 073113 (2012) Efficiently recyclable magnetic core-shell photocatalyst for photocatalytic oxidation of chlorop...

Journal: :Physical chemistry chemical physics : PCCP 2015
Jeffrey E Chen Hong-Yuan Lian Saikat Dutta Saad M Alshehri Yusuke Yamauchi Mai Thanh Nguyen Tetsu Yonezawa Kevin C-W Wu

This study illustrates the directed self-assembly of mesoporous TiO2 with magnetic properties due to its colloidal crystal structure with Fe3O4. The Fe3O4 nanoparticles were synthesized using co-precipitation techniques to a size of 28.2 nm and a magnetic saturation of 66.9 emu g(-1). Meanwhile, mesoporous titania nanoparticles (MTNs) with a particle diameter of 373 nm, a specific surface area ...

NiMn2O4 nanoparticles have been successfully prepared through sol-gel method. The effects of different factors such as the type of solvent, and amino acid temperature were investigated on the size and morphologies of products. The smallest particle size of NiMn2O4 nanoparticles was found to be 25 nm in diameter. The magnetic properties of the samples were also measured by an alternating gradien...

2017
Hideharu Shintani

Copyright: © 2014 Shintani H. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The photocatalyst equipment consists of a titanium dioxlde (TiO2) plate and an ultraviolet lamp. The authors studied if the photoca...

Journal: :Chemical communications 2015
Jiasheng Xu Chengsi Pan Tsuyoshi Takata Kazunari Domen

Overall water splitting was achieved on a simple perovskite oxynitride photocatalyst, CaTaO2N, with an absorption edge at 510 nm. This photocatalyst, modified with a Rh-Cr bimetallic oxide cocatalyst, produced stoichiometric H2 and O2 steadily under UV and visible light irradiation after coating of the photocatalyst particles with amorphous Ti oxyhydroxide.

Journal: :Journal of hazardous materials 2012
Azrina Abd Aziz Kok Soon Yong Shaliza Ibrahim Saravanan Pichiah

An enhanced ferromagnetic property, visible light active TiO(2) photocatalyst was successfully synthesized by supporting strontium ferrite (SrFe(12)O(19)) onto TiO(2) doped with nitrogen (N) and compared with N-doped TiO(2). The synthesized catalysts were further characterized with X-ray diffraction (XRD), transmission electron microscope (TEM), energy dispersive X-ray spectroscopy (EDS), BET s...

2016
Surabhi N Shintre Pragati Thakur

A novel, magnetically separable composite photocatalyst, titania coated with magnetic activated carbon, is prepared by depositing TiO2 onto the surface of magnetic activated carbon which was prepared by directly adsorbing of magnetic Fe2O3 nanoparticles onto activated carbon. The samples are characterized by X-ray diffraction, scanning electron microscopy and vibration sample magnetometer. Spec...

Journal: :Dental materials journal 2011
Masayuki Uchimaru Takako Sakai Ryoji Moroi Susumu Shiota Yukie Shibata Mikito Deguchi Hidetaka Sakai Yoshihisa Yamashita Yoshihiro Terada

This study examined the antimicrobial/antifungal ability of a tissue conditioner containing a photocatalyst for Escherichia coli, Streptococcus mutans, Staphylococcus aureus and Candida albicans. The photocatalyst was mixed with tissue conditioners powders at concentrations of 0, 10, 15, and 20 wt%. Tissue conditioners powders containing a photocatalyst were mixed with liquid to make test speci...

2014
Duangdao Channei Sukon Phanichphant

The Fe3O4/CeO2 magnetic photocatalyst was prepared by coating directly onto the surface of magnetic Fe3O4 particles. However a direct contact of CeO2 onto the surface of magnetic Fe3O4 particles presented unfavorable heterojunction, thus the SiO2 barrier layer between magnetic Fe3O4 and CeO2 was prepared as a core-shell stucture to reduce the negative effect by combining three steps of the hydr...

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