نتایج جستجو برای: magnetic adsorbent

تعداد نتایج: 346062  

Journal: :analytical and bioanalytical chemistry research 2015
maryam fayazi mohammad ali taher daryoush afzali ali mostafavi

in the present study, removal of dibenzothiophene (dbt) from model oil (n-hexane) was investigated using magnetic activated carbon (mac) nano-composite adsorbent. the synthesized nano-composite was characterized by ft-ir, fe-sem, bet and vsm techniques. the mac nano-composite exhibited a nearly superparamagnetic property with a saturation magnetization (ms) of 29.2 emu g-1, which made it desira...

2014
Shuhua Yao Ziru Liu Zhongliang Shi

In this work the adsorption features of activated carbon and the magnetic properties of iron oxides were combined in a composite to produce magnetic adsorbent. Batch experiments were conducted to study the adsorption behavior of arsenate onto the synthetic magnetic adsorbent. The effects of initial solution pH, contact time, adsorbent dosage and co-existing anionic component on the adsorption o...

Journal: :analytical and bioanalytical chemistry research 0
elaheh madrakian faculty of chemistry, bu-ali sina university, hamedan, iran ezzat ghaemi faculty of chemistry, bu-ali sina university, hamedan, iran mazaher ahmadi faculty of chemistry, bu-ali sina university, hamedan, iran

this paper reports on synthesis of a magnetic adsorbent for wastewater treatment purposes. in this regard, platanus orientalis waste leaves were chosen as a cheap material for preparing the magnetic adsorbent by loading magnetite nanoparticles on it. the synthesized adsorbent was characterized using scanning electron microscope and x-ray diffractometer. then, it was used for magnetic solid phas...

Journal: :journal of physical and theoretical chemistry 0
sahar hafeznezhad department of chemistry, bandar abbas branch, islamic azad university, bandar abbas 7915893144, iran farid moeinpour department of chemistry, bandar abbas branch, islamic azad university, bandar abbas 7915893144, iran

malicorium supported ni0.5zn0.5fe2o4 magnetic nanoparticles were synthesized by a low-cost, simple,and environmentally benign procedure. the adsorbent was characterized by several methods includingx-ray diffraction (xrd), scanning electron microscopy (sem) and fourier transform infraredspectroscopy (ft-ir). then, the potential of malicorium supported ni0.5zn0.5fe2o4 magneticnanoparticles was in...

Dehghanifard, Emad, Kakavandi, Babak, Noorisepehr, Mohammad, Rafiee, Mohammad,

Background &Objectives: Aniline is a substance used in chemical industries and in various processes such as pesticide production, chemical bleaching, textile dyes, etc. In spite of the negative effects of aniline on the environment due the difficult decomposition of this substance, various methods have been investigated to remove this substance from water resources. The aim of this study was to...

2014
Niyaz Mohammad Mahmoodi Jafar Abdi Dariush Bastani

The magnetic adsorbent nanoparticle was modified using cationic surface active agent. Zinc ferrite nanoparticle and cetyl trimethylammonium bromide were used as an adsorbent and a surface active agent, respectively. Dye removal ability of the surface modified nanoparticle as an adsorbent was investigated. Direct Green 6 (DG6), Direct Red 31 (DR31) and Direct Red 23 (DR23) were used. The charact...

This paper reports on synthesis of a magnetic adsorbent for wastewater treatment purposes. In this regard, platanus orientalis waste leaves were chosen as a cheap material for preparing the magnetic adsorbent by loading magnetite nanoparticles on it. The synthesized adsorbent was characterized using scanning electron microscope and X-ray diffractometer. Then, it was used for magnetic solid phas...

Journal: :international journal of nanoscience and nanotechnology 2013
m. moradian m moradian z. boroumand

widespread arsenic contamination of mining wastewater of zarshouran (west azerbaijan province) hasled to a massive epidemic of arsenic poisoning in the whole of surrounding areas. it is estimated thatapproximately all agriculture fields are being irrigated with the water that its arsenic concentrationselevated above the world health organization’s standard of 10 parts per billion. a novel advan...

Dehghanifard, Emad, Kakavandi, Babak, Noorisepehr, Mohammad,

Background & Objective: The presence of nitrate and phosphate in concentrations above the allowable level in surface and groundwater resources leads to disease and problems. The aim of this study was to investigate the adsorption efficiency of magnetic-metallic chitosan nanocomposite in the adsorption of nitrate and phosphate from aqueous solutions. Materials and methods: The adsorbent was synt...

2014
Van Cuong Nguyen Quoc Hue Pho

An adsorbent called chitosan coated magnetic hydroxyapatite nanoparticles (CS-MHAP) was prepared with the purpose of improvement for the removal of Ni(2+) ions and textile dye by coprecipitation. Structure and properties of CS-MHAP were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and vibrating sample magnetometer ...

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