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| 1 | Photocatalytic degradation of methylene blue by nanostructured Fe/FeS powder under visible light显示文摘The photocatalytic performance of mechano-thermally synthesized Fe/FeS nanostructures formed from micron-sized starting materials was compared with that of a thermally synthesized nanostructure with nano-sized precursors in this paper. The properties of as-synthesized materials were studied by X-ray diffraction(XRD), transmission electron microscopy(TEM), vibrating sample magnetometry(VSM), diffuse reflectance spectroscopy(DRS), and ultraviolet–visible(UV-Vis) spectroscopy. The effects of irradiation time, methylene blue(MB) concentration, catalyst dosage, and p H value upon the degradation of MB were studied. Magnetic properties of the samples showed that both as-synthesized Fe/FeS photocatalysts are magnetically recoverable, eliminating the need for conventional filtration steps. Degradation of 5 ppm of the MB solution by mechano-thermally synthesized Fe/FeS with a photocatalyst dosage of 1 kg/m^3 at pH 11 can reach 96% after 12 ks irradiation under visible light. The photocatalytic efficiency is higher in alkaline solution. The kinetics of photocatalytic degradation in both samples is controlled by a first-order reaction. However, the rate-constant value in the thermally synthesized Fe/FeS photocatalyst sample is only 1.5 times greater than that of the mechano-thermally synthesized one. | Hassan Esmaili Amir Kotobi Saeed Sheibani Fereshteh Rashchi | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，2： | 11 |
| 2 | Mechano-thermal synthesis and characterization of nano-structured Fe/FeS for application in photocatalysis显示文摘 | H. Esmaili S. Sheibani F. Rashchi | 2018 | Particuology2018，16，2： | 3 |
| 3 | Ti leaching from activated ilmenite–Fe mixture at different milling energy levels显示文摘Mechanical activation processes on ilmenite concentrate were performed in three different energy levels. Iron powder as a reducing agent was added to ilmenite in the milling stage and the mechanically activated mixture was subjected to acid leaching. The leaching experiments were designed using the Taguchi method, and the optimum ranges were obtained. Furthermore, response surface methodology(RSM) was used to optimize the critical parameters in the leaching system to achieve the highest titanium(Ti) leachability. Based on the inductively coupled plasma-optical emission spectrometry(ICP-OES) results, maximum leaching recovery of Ti(80%) was obtained using activated Ti concentrates at a medium activation energy level, which is calculated to be 25.38 kJ/g, using 15 vol% hydrochloric acid(HCl), a temperature of 70°C, leaching time of 3 h, and a solid-to-liquid ratio of 0.05 g×mL^(–1). Intensifying the milling energy from a low to high level led to a decrease in the mean crystallite size and also structure homogenization at the high energy level. According to the transmission electron microscopy(TEM) images, the mean grain size of the ilmenite/Fe nanocomposite was about 30 nm at the medium energy level sample. Finally, solvent extraction by tributyl phosphate(TBP) was performed on the leach liquor to separate dissolved Fe(the major impurity) from Ti, which led to 83% extraction recovery of Ti. | Elham Hosseini Fereshteh Rashchi Abolghasem Ataie | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，11： | 3 |
| 4 | A shrinking particle-shrinking core model for leaching of a zinc ore containing silica显示文摘 | Vida Safari G A Fereshteh Rashchi Navid Mostoufi | 2009 | Mineral Processing2009，93，1： | 1 |
| 5 | Separation of oxidized zinc minerals from tailings: Influence of flotation reagents 显示文摘 | NAVIDI KASHANI A H RASHCHI F | 2008 | Minerals Engineering2008，21，： | 1 |
| 6 | Polyphosphates: A review their chemistry and application with particular reference to mineral processing显示文摘 | RASHCHI F FINCH J A | 2000 | Minerals Engineering2000，13，1011： | 1 |
| 7 | Anglesite flotation:a study for lead recovery from zinc leach residue 显示文摘 | Rashchi F Dashti A Arabpour-Yazdi M | 2005 | Mineral Engineering2005，18，2： | 1 |
| 8 | Synergistic effect of D2EHPA and Cyanex 272 on separation of zinc and manganese by solvent extraction显示文摘 | AHMADIPOUR M RASHCHI F GHAFARIZADEH B MOSTOUFI N | 2011 | Sep Sci Technol2011，46，15： | 1 |
| 9 | Anglesite flotation: A study for lead recovery from zinc leach residue显示文摘 | RASHCHI F DASHTI A ARABPOUR- YAZDI M ABDIZADEH H | 2005 | Minerals Engineering2005，18，2： | 1 |
| 10 | Simultaneous recovery of vanadium and nickel from power plant flyash:Optimization of parameters using response surface methodology显示文摘 | Nazari E Rashchi F Saba M | 2014 | Waste Management2014，34，12： | 1 |
| 11 | Selective recovery and sep- aration of nickel and vanadium in sulfate media using mixtures of D2EHPA and Cyanex 272 显示文摘 | Noori M Rashchi F Babakhani A | 2014 | Separation and Purification Tech- nology2014，136，： | 1 |
| 12 | Recovery of zinc from an industrial zinc leach residue by solvent extraction using D2EHPA显示文摘 | Vahidi E Rashchi F Moradkhani D | 2009 | Minerals Engineering2009，22，2： | 1 |
| 13 | Recovery of zinc from an industrial zinc leach residue by solvent extraction using D2EHPA显示文摘 | Vahidi E Rashchi F Moradkhani D | 2009 | Minerals Engineering2009，22，2： | 1 |
| 14 | Optimization and kinetics of the cementation of lead with aluminum powder 显示文摘 | FARAHMAND F MORADKHANI D SAFARZADEH M S RASHCHI F | 2009 | Hydrometallurgy2009，98，： | 1 |
| 15 | Selective recovery and separation of nickel and vanadium in sulfate media using mixtures of D2EHPA and Cyanex272 显示文摘 | Mehdi Noori Fereshteh Rashchi Ataollah Babakhani etal | 2014 | Separation and Purification Technology2014，136，5： | 1 |
| 16 | Selective separationofnickelandcadmiumfromsulfate solutions of spent nickel-cadmium batteries using mixtures of D2EHPA and Cyanex 302 显示文摘 | Ataollah Babakhani Fereshteh Rashchi Alireza Zakeri etal | 2014 | Journal of Power Sources2014，274，1： | 1 |
| 17 | A shrinking particle-shrinking core model for leaching of a zinc ore containing silica 显示文摘 | SAFARI V ARZPEYMA G RASHCHI F MOSTOUFI N | 2009 | International Journal of Mineral Processing2009，93，1： | 1 |
| 18 | Hydrometallurgical treatment of tailings with high zinc content 显示文摘 | ESPIARI S RASHCHI F SADRNEZHAAD S | 2006 | Hydrometallurgy2006，82，1： | 1 |
| 19 | Deactivation of Pb-contarninated sphalerite by polyphosphate 显示文摘 | RASHCHI F FINCH J A | 2006 | Colloids Surf A2006，276，： | 1 |
| 20 | Leaching of vanadium from LD converter slag using sulfu- ric acid 显示文摘 | Aarabi-Karasgani M Rashchi F Mostoufi N Vahidi E | 2010 | Hydrometallurgy2010，102，： | 1 |
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