Original Research Paper
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

https://doi.org/10.7508/jwent.2017.01.001

Abstract
  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

Original Research Paper
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

https://doi.org/10.7508/jwent.2017.01.002

Abstract
  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

Original Research Paper
A comparative study for the electrochemical regeneration of adsorbents loaded with methylene blue

Ines Bouaziz; Morched Hamza; Ridha Abdelhedi; André Savall; Karine Groenen Serrano

Volume 2, Issue 1 , January 2017, Pages 17-25

https://doi.org/10.7508/jwent.2017.01.003

Abstract
  The electrochemical regeneration of methylene blue-saturated activated carbon, Nyex®1000 and sawdust has been studied and the performances in terms of capacity of adsorbent regeneration have been compared in this work. The adsorption isotherms were investigated. The results showed that the adsorption ...  Read More

Original Research Paper
Removal of nickel (II) from aqueous solution by graphene and boron nitride nanosheets

Jafar Azamat

Volume 2, Issue 1 , January 2017, Pages 26-33

https://doi.org/10.7508/jwent.2017.01.004

Abstract
  Molecular dynamics simulations were carried out to study the removal of Ni2+ as a heavy metal from the water by the functionalized graphene nanosheet (GNS) and boron nitride nanosheet (BNNS). Nickel causes asthma, conjunctivitis and inflammatory reactions and nickel salts act as emetics when swallowed; ...  Read More

Original Research Paper
Investigation of Conversion CO2 to Fuel by TiN nanotube-Cu nanoparticle

Leila Mahdavian

Volume 2, Issue 1 , January 2017, Pages 34-38

https://doi.org/10.7508/jwent.2017.01.005

Abstract
  The CO and CO2 effects are global warming, acid rain, limit visibility, decreases UV radiation; yellow/black color over cities and so on. In this study, convention of CO2 and H2O to CH4 and O2 near TiN- nanotube with Cu-nanoparticle calculated by Density Functional Theory (DFT) methods. We have studied ...  Read More

Original Research Paper
Trace Cd(II), Pb(II) and Ni(II) ions extraction and preconcentration from different water samples by using Ghezeljeh montmorillonite nanoclay as a natural new adsorbent

Zahra hassanzadeh Siahpoosh; Majid Soleimani

Volume 2, Issue 1 , January 2017, Pages 39-51

https://doi.org/10.7508/jwent.2017.01.006

Abstract
  This investigate presents the extraction-preconcentration of Lead, Cadmium, and Nickel ions from water samples using Ghezeljeh montmorillonite nanoclay or “Geleh-Sar-Shoor” (means head-washing clay) as a natural and native new adsorbent in batch single element systems. The Ghezeljeh clay ...  Read More

Original Research Paper
Van der Waals corrected DFT study on the adsorption behaviors of TiO2 anatase nanoparticles as potential molecule sensor for thiophene detection

Amirali Abbasi; Jaber Jahanbin Sardroodi

Volume 2, Issue 1 , January 2017, Pages 52-65

https://doi.org/10.7508/jwent.2017.01.007

Abstract
  Density functional theory investigations were conducted in order to study the effects of the adsorption of thiophene on the structural and electronic properties of TiO2 anatase nanoparticles. The ability of pristine and N-doped TiO2 anatase nanoparticles to recognize toxic thiophene was surveyed in detail. ...  Read More

Short Communication
Study on UV-visible for detection of biosynthesis of silver nanoparticles by oyster mushroom’s extracts

Mustafa Nadhim Owaid; Sajid Salahuddin Saleem Al-Saeedi; Idham Ali Abed

Volume 2, Issue 1 , January 2017, Pages 66-70

https://doi.org/10.7508/jwent.2017.01.008

Abstract
  Twelve extracts belong to four species of edible oyster mushrooms were screened for their chemical value (viz. proteins, carbohydrates and phenols were assessed) and their capability to biosynthesize silver nanoparticles (AgNPs). In limitative conditions, dark incubation and temperature 25 °C, three ...  Read More