Neutralization of arsenic pollutants, contained in natural waters: The theoretical analysis of solubility of some arsenates and optimization of the processes

Marta Litynska; Nataliia Tolstopalova; Igor Astrelin

Volume 2, Issue 1 , January 2017, , Pages 1-8

  Arsenic belongs to chemical elements, which are often found in natural waters and make it unsuitable for consumption without special treatment. Neutralization of arsenic pollutants of natural waters by converting them into insoluble form is one of the perspective methods of dearsenication. Precipitation ...  Read More

HPLC-MS/MS Mechanistic Study of Direct Yellow 12 dye Degradation Using Ultraviolet Assisted Ozone Process

Ahmed El Nemr; Mohamed A. Hassaan; Fedekar Fadel Madkour

Volume 3, Issue 1 , January 2018, , Pages 1-11

  HPLC-MS/MS degradation mechanism of Direct Yellow 12 (DY-12) dye using O3 associated with UV was studied. The influent of different conditions such as pH, initial DY-12 dye concentration and reaction time were studied in a batch reactor method. The results revealed that the pH value and DY-12 initial ...  Read More

The effect of polyethylene glycol grafted nanodiamond on antifouling properties of cellulose acetate membrane for Removal of BSA from Contaminated Water

Mahdi Seyfollahi; Habib Etemadi; Reza Yegani; Mahyar Rabeii; Elham Shokri

Volume 4, Issue 1 , January 2019, , Pages 1-16

  In this study, membranes were prepared by pristine and polyethylene glycol (PEG)-grafted ‎nanodiamond (ND) embedded in cellulose acetate (CA) as matrix polymer via non-solvent ‎induced phase separation method. The antifouling properties of the membranes were studied ‎during filtration of ...  Read More

Electrical Behaviour of Chitosan-Silver Nanocomposite in Presence of Water Vapour

Bal Yadav; Ritesh Kumar; Ravindra Kumar; Subhasis Chaudhuri; Panchanan Pramanik

Volume 2, Issue 2 , April 2017, , Pages 71-79

  This paper presents the synthesis, characterization of the nanocomposite of silver and chitosan polymer composite reinforced by cellulose fibre and its electrical behaviour in presence of water vapour. The coated paper has been characterized by XRD, IR, SEM and EDX techniques. The size of silver nanoparticles ...  Read More

Cd(II) Sorption on Iranian nano zeolites: Kinetic and Thermodynamic Studies

Taher Yousefi; Meisam Torab-Mostaedi; Amir Charkhi; Abolfazl Aghaei

Volume 1, Issue 2 , November 2016, , Pages 75-83

  An uptake of Cd(II) from aqueous solutions by ion exchange on Iranian natural zeolitic (TOSKA) has been studied. Experiments were carried out using batch method as a function of the initial concentration of metal ions, contact time, and temperature. The adsorbent is characterized using XRF, FTIR, TEM, ...  Read More

Adsorption of organic compounds on the Fe3O4 nanoparticles for forestalling fouling in membrane bioreactor

Sedigeh Sabalanvand; Hossein Hazrati; abbas jafarizad; Yoones Jafarzadeh

Volume 4, Issue 2 , April 2019, , Pages 88-96

  Many studies have been done to reduce the membrane fouling and to increase the quality of the effluent from membrane bioreactor (MBR). One of the most important researches in this filed is the use of adsorbents and nanoparticles in the biological system. In this study, the effects of Fe3O4 nanoparticles ...  Read More

Phytofabrication of fluorescent silver nanoparticles from Leucaena leucocephala L. leaves and their biological activities

Suresh Ghotekar; Ajay Savale; Shreyas Pansambal

Volume 3, Issue 2 , April 2018, , Pages 95-105

  The aim of this study was to expand an ecofriendly route for the fabrication of spherical shape silver nanoparticles (AgNPs) using an aqueous extract of Leucaena leucocephala L. leaves to act as stabilizing and reducing agent. Several biomolecules present in plant extract are accountable for single step ...  Read More

Photocatalytic Decolorization of Methylene Blue by N-doped TiO2 Nanoparticles Prepared Under Different Synthesis Parameters

Shimelis Kassahun; Zebene Kiflie; Dong Shin; Sam Park

Volume 2, Issue 3 , July 2017, , Pages 136-144

    Although several studies concerning the preparation of nitrogen doped titanium dioxide visible-light active photocatalyst have already been reported, the effects of dopant concentration and calcination temperature have been rarely investigated. This paper focuses on the preparation of nitrogen ...  Read More

Efficient synthesis of magnetically separable CoFe2O4@SiO2 nanoparticles and its potent catalytic applications for the synthesis of 5-aryl-1,2,4-triazolidine-3-thione derivatives

Shreyas Pansambal; Suresh Ghotekar; Sunil Shewale; Keshav Deshmukh; Nilesh Barde; Pranav Bardapurkar

Volume 4, Issue 3 , July 2019, , Pages 174-186

  Magnetically separable silica-coated cobalt ferrite (CoFe2O4@SiO2) magnetic nanoparticles (MNPs) were synthesized by sol-gel auto combustion method. Silica matrix was employed to minimize the agglomeration and coarsening of the MNPs. The structural and morphological properties of the as-prepared nanocatalyst ...  Read More

Synthesis of Mesoporous Fe3O4 and Fe3O4/C Nanocomposite for Removal of Hazardous Dye from Aqueous Media

Hossein Khoshsang; Ali Ghaffarinejad; Hojjat Kazemi; Sedighe Jabarian

Volume 3, Issue 3 , July 2018, , Pages 191-206

  The magnetic mesoporous Fe3O4 and Fe3O4/Carbon Nanocomposite (Fe3O4/C) are synthesized by a facile hydrothermal method in one- step and are used for methylene blue dye removal. Nanomaterials are characterized by field-emission scanning electron microscope (FE-SEM), transition electron microscopy ...  Read More

Synthesis of Highly Effective Novel Graphene Oxide-Polyethylene Glycol-Polyvinyl Alcohol Nanocomposite Hydrogel For Copper Removal

Eman Serag; Ahmed El Nemr; Azza El-Maghraby

Volume 2, Issue 4 , October 2017, , Pages 223-234

  A novel Graphene oxide-polyethylene glycol and polyvinyl alcohol (GO-PEG-PVA) triple network hydrogel were prepared to remove Copper(II) ion from its aqueous solution. The structures, morphologies, and properties of graphene oxide (GO), the composite GO-PEG-PVA and PEG-PVA were characterized using FTIR, ...  Read More

Decontamination study of Organic Pollutants from wastewater for Sustainable Clean Environment

Ganesh Jethave; Umesh Fegade; Sanjay Attarde; Sopan Ingle

Volume 4, Issue 4 , October 2019, , Pages 263-274

  The successful synthesis and characterization of AlTiPbO Nanoparticles (ATPO-NPs) using a facile and straight forward co-precipitation method was reported in the present work. The detailed morphological characterization uncovered that the nanoparticles are of 28 nm in size. From the application perspective, ...  Read More

Facile Synthesis and Characterization of HNT-Ferrihydrite Nanocomposites for water/wastewater treatment

Syarifah Nazirah Wan Ikhsan; Norhaniza Yusof; Farhana Aziz; Nurasyikin Misdan; Ahmad Fauzi Ismail

Volume 3, Issue 4 , October 2018, , Pages 279-288

  Halloysite nanotube/ferrihydrite (HNT/HFO) nanocomposites have been synthesized using a simple chemical precipitation method using only one-pot method. The synthesized nanocomposites were characterized for its physicochemical as well as morphological characteristics through X-Ray Diffraction (XRD), Fourier ...  Read More

Effective removal of hexavalent mercury from aqueous solution by modified polymeric nanoadsorbent

Lida Rahmanzadeh; Mohsen Ghorbani; Mohsen Jahanshahi

Volume 1, Issue 1 , July 2016, , Pages 1-8

  Mercury is one of the most toxic metals present in the environment. Adsorption has been proposed among the technologies for mercury adsorbent. The kinetics of adsorption depends on the adsorbent concentration, and the physical and chemical characteristics of adsorbent. In this study we were used a novel ...  Read More

Catalytic oxidation of naphtol blue black in water: Effect of Operating Parameters and the Type of Catalyst

Ouahiba Bechiri; Mostefa Abbessi

Volume 2, Issue 1 , January 2017, , Pages 9-16

  The main objective of this work is to study the oxidation of naphthol blue black (NBB) in aqueous solution by hydrogen peroxide using a recyclable Dawson type heteropolyanion [H1.5Fe1.5P2W12Mo6O61.23H2O] as catalyst.The effects of various experimental parameters of the oxidation reaction of the dye were ...  Read More

Experimental Investigation of the Base Fluid Miscibility Condition on the Oil Recovery Using Nanofluids Flooding

Vahid Barkhordari; Arezou Jafari

Volume 3, Issue 1 , January 2018, , Pages 12-21

  This research illustrates the effect of miscibility condition between nanofluid and oil on the process efficiency and to achieve this aim four types of fluid including distilled water, ethanol, n-hexane, and gas condensate were used to disperse silica nanoparticles. The prepared nanofluids were injected ...  Read More

Investigation and Comparison of Cobalt ferrite composite nanoparticles with individual Iron oxide and Cobalt oxide nanoparticles in azo dyes removal

Janan Parhizkar; Mohammad Hossein Habibi

Volume 4, Issue 1 , January 2019, , Pages 17-30

  Photocatalytic treatment of wastewater from azo dyes with semiconductors promises efficient method to refine water. Cobalt ferrite is synthesized and utilized for dye removal as a semiconducting composite. To compare photocatalytic performance of its individual oxides, cobalt oxide and iron oxide were ...  Read More

Operating Conditions of Coagulation-Flocculation Process for High Turbidity Ceramic Wastewater

Sameer Al-Asheh; Ahmed Aidan

Volume 2, Issue 2 , April 2017, , Pages 80-87

  This work attempted to determine the optimum conditions required for the coagulation and flocculation process as an essential stage of the ceramic wastewater treatment. Coagulation and flocculation is a very necessary step in industries as it lessens turbidity, color, and odor of wastewater. The experimental ...  Read More

The Potential of ZnO Nanoparticles to Reduce Water Consuming in Iranian Heavy Oil Reservoir

Masoumeh Tajmiri; Mohammad Reza Ehsani

Volume 1, Issue 2 , November 2016, , Pages 84-90

  Water is critically important, because its supply is under stress. In oil fields, the ratio-of-water-to-oil (WCUT%) can be 95% or higher. Managing this produced water is a great challenge whereas the best opportunity to reduce costs, improve profitability and preserve the natural environment. The oil ...  Read More

Multiwalled Carbon Nanotubes/Polyethersulfone Mixed Matrix Nanofiltration Membrane for the removal of cobalt ion

Alireza Nouri; Ramin Yavari; Mohammad Ali Aroon; Taher Yousefi

Volume 4, Issue 2 , April 2019, , Pages 97-108

  In the present research work, the mixed matrix membranes (MMMs) containing various amount of polyethersulfone (PES) and functionalized multi-walled carbon nanotubes (fMWCNTs) were fabricated and used to investigate the removal of cobalt ions from wastewater by nanofiltration process. Pristine MWCNTs ...  Read More

Plant- mediated biosynthesis of Silver nanoparticles from Gymnema sylvestre and their use in phtodegradation of Methyl orange dye

Shirish Sadashiv Pingale; Shobha Vasant Rupanar; Manohar Chaskar

Volume 3, Issue 2 , April 2018, , Pages 106-115

  The present study reports one step green synthesis of silver nanoparticles using Gymnema sylvestre aqueous extract at room temperature and their usage in the photodegradation of methyl orange dye. The silver nanoparticles are synthesized using an aqueous extract of stem and root of Gymnema sylvestre. ...  Read More

Fabrication of Hydrophobic Membrane for the Separation of n-Hexane/Water Mixture Using Novel Oleophilic Nanoparticle and Kevlar Fabric, as a Superior Support

Hanieh Karimnezhad

Volume 2, Issue 3 , July 2017, , Pages 145-156

  The fabrication of functionalized membranes with hydrophobic/oleophilic surfaces for the elimination of n-hexane from water using para-aminobenzoate alumoxane, boehmite-epoxide and a novel nanoparticle, i.e., Stearate Alumoxane by a simple coating technique, is reported here. FTIR was used to characterize ...  Read More

Photocatalytic Removal of Food Colorant E 131 VF from synthetic wastewater by Cu Doped TiO2 Samples

Malak Ali El Tfayli; Fatima Ali Makki; Mounir Mustapha Kassir; Mouhiaddine Mohamed El Jamal; Azadeh Ebrahimian Pirbazari

Volume 4, Issue 3 , July 2019, , Pages 187-197

  In this work, we studied the effect of various amounts (0.2-1.2 % mole ratio) of Cu doping to TiO2 nanoparticles (Cu/TiO2) on the photocatalytic removal efficiency of the food colorant E 131 VF. Two series of doped TiO2 (P25) photocatalysts were prepared in two different media (50%ethanol-50%acetone ...  Read More

Static and Dynamic Investigation of Effective Parameters on Water Injection Performance in the Presence of Nanofluids

Abdolreza Kazemi Abadshapoori; Yousef Kazemzadeh; Mohammad Sharifi; Masoud Riazi

Volume 3, Issue 3 , July 2018, , Pages 207-218

  Oil production from oil reservoirs containing oil in water (O/W) and water in oil (W/O) emulsions has always been accompanied by some problems. The increase in apparent viscosity of the oil, pore throats blockage, and consequently, the increased rate of pressure drop are among these problems. Investigating ...  Read More