The Effect of Bandgap Engineering and Mn3O4-x Nanoparticles Loading On the Optical/Electronic Properties of g-C3N4 Nanosheets for Photocatalytic Applications

, M.Sc. Thesis Sharif University of Technology Zandy, Elaheh (Author) ; Madaah Hosseini, Hamid Reza (Supervisor)

Abstract

With the increasing awareness of the environmental issues and universal need to access clean and renewable energy resources, e.g., solar energy, semiconductor photocatalysis has been accepted as an efficient way to utilize light photons in order to perform specific chemical reactions such as pollution degradation, hydrogen production, and CO2 reduction. Among different materials used for photocatalysis, graphitic carbon nitride (g-C3N4) has been proven to be a promising visible-light-driven photocatalyst; but possesses some drawbacks limiting its applications in the field of photocatalysis. In the present study, a novel g-C3N4-based nanocomposite made up of oxygen-doped g-C3N4 and...

Complexity of Density Dependencies of Thermal- and Internal- Pressure Compared to that of Total Pressure

, M.Sc. Thesis Sharif University of Technology Sajjadi, Hashem (Author) ; Parsafar, Gholamabbas (Supervisor) ; Goharshadi, Elaheh (Supervisor)

Abstract

A simple equation of state (EoS) has recently been introduced (J. Phys. Chem. B 2009, 113, 11977–11987) as (Z-1) v^2=e+f⁄ρ+gρ^2, where Z≡pv⁄RT is the compressibility factor, v=1⁄ρ is molar volume, and e, f, and g are temperature dependent parameters. This EoS has been found to be accurate for all types of nano- and bulk- solids and bulk fluids, in the entire temperature and pressure ranges for which experimental data are reported, except for the isotherms within the critical region.
The aim of this work is to investigate the validity of a 3-term expression similar to the mentioned EoS for both thermal and internal contributions to the compressibility factor, separately. Such...

Pulsating Pulmonary Blood Inflow in Total Cavopulmonary Connection (TCPC) after Fontan Surgery

, M.Sc. Thesis Sharif University of Technology Moradi, Hamed (Author) ; Sayadi, Hassan (Supervisor) ; Firoozabadi, Bahar (Supervisor) ; Navabi Shirazi, Mohammad Ali (Co-Supervisor) ; Malakan Rad, Elaheh (Co-Supervisor)

Abstract

Patients with a single ventricle disease who have undergone Fontan surgery have always had long-term complications. These complications include pulmonary artery stiffness and decreased ability to exercise. In fact, due to removal of the right ventricle from the circulatory system, blood pressure and pulsatility inflow to total cavopulmonary connection (TCPC) are reduced following this surgery. Creating waves (radial displacement) on the IVC (Inferior Vena Cava) wall can increase pulmonary flow pulsations. The Objective of this study is to test the effect of induced wave amplitude on the pulmonary flow pulsations at the rest condition. Computational fluid dynamic (CFD) simulations were...