Original Paper
1. Effect of ZnS shell on optical properties of Ni-doped ZnSe nanocrystals

Ehsan Soheyli; Gholamreza Nabiyouni; Reza Sahraei

Volume 9, Issue 4 , Autumn 2019, Pages 1-6

Abstract
  The present paper aims to suggest a simple/fast route for direct preparation of the Ni-doped ZnSe/ZnS core/shell NCs in aqueous solution. Using XRD measurement, the zinc blend structure and sub-5 nm average size of the NCs was proved. The FT-IR spectrum also showed the passivation of the NCs surface ...  Read More

Original Paper
2. Investigation of acetone as co-solvent on performance PES nanofiltration membrane

Hamideh Aminifard; Abdolreza Moghadassi; Ehsan Bagheripour

Volume 9, Issue 4 , Autumn 2019, Pages 7-12

Abstract
  Polyethersulfone (PES)-based on mixed matrix nanofiltration membrane was developed by amalgamation with partially reduced acetone nanocomposite. The effect of acetone fillings on the morphology and performance of the prepared membranes was examined by scanning electron microscopy (SEM) and water contact ...  Read More

Original Paper
3. Mathematic modeling of purification of biodiesel with PES polymeric membrane

Samaneh Koudzari Farahani; Erfan Gandomkar Ghalhari; Abdolreza Moghadassi; Seyyed Mohammad Hosseini; Ehsan Joudaki

Volume 9, Issue 4 , Autumn 2019, Pages 13-20

Abstract
  One of the new separation methods for purifying biodiesel used in recent years is the membrane separation process. In the current research, purification of produced biodiesel was carried out using Polymeric Poly Ether Sulfone(PES) based membrane. The prepared PVP membranes was containing 1, 1.5, 2 and ...  Read More

Original Paper
4. The electrical and structural study of interaction HCN gas with SiCNTs: A DFT approach

M. Rezaei Sameti; S Taghizadeh Najaf Abad; E Shiravand; K Abdoli

Volume 9, Issue 4 , Autumn 2019, Pages 21-24

Abstract
  In this research, we investigate the interaction of HCN gas with SiCNTs to making new absorber and sensor for HCN gas. All stable adsorption structures are individually optimized by using density function theory at the cam-B3LYP level of theory using the Gaussian 09 set of programs. From optimized structures ...  Read More

Original Paper
5. Hydrogen solar fuel generation from photocatalytic decomposition of H2S-containing media via nanostructured solid-solution semiconductor

M Ghanimati; Sh Afshari; M Lashgari

Volume 9, Issue 4 , Autumn 2019, Pages 25-31

Abstract
  Hydrogen sulfide is a flammable, malodorous, highly toxic and corrosive compound which is produced in large quantities as a by-product in many industrial processes. However, it will be economically and environmentally advantageous if it is photodecomposed to generate hydrogen, which is a clean and renewable ...  Read More

Original Paper
6. Studying the effects of Gas and Liquid velocities in modeling of the simultaneous removal CO2 and H2S using MEA in a hollow fiber membrane contactor

E Amirahmadia; M Talaghat

Volume 9, Issue 4 , Autumn 2019, Pages 32-38

Abstract
  A two-dimensional mathematical model was studied for the transport of CO2 and H2S through hollow fiber membrane (HFM) contactors while using MEA (monoethanolamine) as the chemical absorber. The model considered non-wetted where the gas and the solvent liquid fill the membrane pores for counter current ...  Read More