نتایج جستجو برای: magnetically separable

تعداد نتایج: 21913  

Journal: :Journal of hazardous materials 2017
Yuefa Jia Changjin Wu B W Lee Chunli Liu Seokwon Kang Taehyoung Lee Yun Chang Park Ran Yoo Wooyoung Lee

In this report, magnetically recoverable sulfur-doped SnFe2O4/graphene (S-SFO/GR) nanohybrids have been successfully developed via a facile solvothermal method. The characterizations on the structural, morphology, and optical properties of the nanohybrids indicate that S-SFO particles are successfully embedded on the GR nanosheets. The photocatalytic activity has been evaluated by photocatalyti...

2015
Yuhui Cao Chen Li Junli Li Qiuye Li Jianjun Yang

Magnetically separable Fe3O4/AgBr hybrid materials with highly efficient photocatalytic activity were prepared by the precipitation method. All of them exhibited much higher photocatalytic activity than the pure AgBr in photodegradation of methyl orange (MO) under visible light irradiation. When the loading amount of Fe3O4 was 0.5 %, the hybrid materials displayed the highest photocatalytic act...

Journal: :international journal of group theory 2015
kok bin wong peng choon wong

in this paper, we will give necessary and sufficient conditions for certain hnnextensions of subgroup separable groups with normal associated subgroup to be conjugacyseparable. in fact, we will show that these hnn extensions are conjugacy separable if and onlyif the normalizer of one of its associated subgroup is conjugacy separable.

Journal: :Journal of environmental sciences 2015
Guoqiang Zhou Ziwen Chen Fei Fang Yuefeng He Haili Sun Huixiang Shi

For the paper industry, the disposal and management of the yielded sludge are a considerable challenge. In our work, the paper mill sludge-derived magnetically separable heterogeneous catalyst (PMS-Fe-380) was prepared easily through a facile synthesis method. The morphology and structure of PMS-Fe-380 were fully characterized by means of X-ray diffraction, Fourier transform infrared spectrosco...

2016
Weiyi Ouyang Ewelina Kuna Alfonso Yepez Alina M. Balu Antonio A. Romero Juan Carlos Colmenares Rafael Luque

TiO₂ (anatase phase) has excellent photocatalytic performance and different methods have been reported to overcome its main limitation of high band gap energy. In this work, TiO₂-magnetically-separable nanocomposites (MAGSNC) photocatalysts with different TiO₂ loading were synthesized using a simple one-pot mechanochemical method. Photocatalysts were characterized by a number of techniques and ...

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: :Bioresource technology 2012
Yuanyuan Liu Zhuotong Zeng Guangming Zeng Lin Tang Ya Pang Zhen Li Can Liu Xiaoxia Lei Mengshi Wu Pinyun Ren Zhifeng Liu Ming Chen Gengxin Xie

A novel magnetically separable laccase immobilized system was constructed by adsorbing laccase into bimodal carbon-based mesoporous magnetic composites (CMMC). A large adsorption capacity (491.7 mg g(-1)), excellent activity recovery (91.0%) and broader pH and temperature profiles than free laccase have been exhibited by the immobilized laccase. Thermal stability was enhanced to a great extent ...

Journal: :Dalton transactions 2015
Mohammad Mahdi Najafpour Saeideh Salimi

Herein we report that the reaction of KMnO4 with cobalt nanoparticles coated with multiple graphene layers forms a promising catalyst toward water oxidation. The compound was characterized by scanning electron microscopy, energy-dispersive spectroscopy, high resolution transmission electron microscopy, X-ray diffraction, electronic spectroscopy, Fourier transform infrared spectroscopy, and atom...

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