Siwei Guo

Office: ES&T 2326, CNES 107

Office Phone:(404) 894-2152

Cell: (404) 502-3225

Email: s.guo(at) 


Georgia Institute of Technology

Doctor of Philosophy in Chemical Engineering, 2018 (Expected)

The University of Texas at Austin

Bachelor of Science in Chemical Engineering, 2013





- Dr. Sankar Nair 

- Dr. David Sholl 

Current Research

Polyethylene terephthalate (PET) is the 3rd most produced polymer in the world. The production and consumption of PET exceeded 28 million tons in 2012 and kept increasing. Para-Xylene is the feedstock for making PET, an efficient purification of whom, however, remains an engineering challenge.

Currently, more than 70% of xylenes are separated by several commercial large-scale SMB processes: UOP's Parex, IFP's Eluxyl, or Toray's Aromax. My research interests include simulation and optimization of these processes, developing new operating schemes and reduce solvent and energy consumption.

Studying the liquid adsorption on zeolite pore surface is one of my interests as well. An accurate isotherm is vital for computational modeling and simulation. Unlike common dilute liquid/gas phase adsorption phenomena, xylenes present interesting packing, entropic effect during adsorption/desorption. These interesting adsorption behaviors result in that most of the commonly used isotherms (Langmuir, IAST) are not applicable to this system.


Publications and Conference Proceedings

  1. Son Hoang, Siwei Guo, Nathan T. Hahn, Allen J. Bard, and C. Buddie Mullins, "Visible-light driven photoelectrochemical water oxidation on nitrogen-doped TiO2 nanowires," Nano Lett. 12,26-32 (2012). 

  2. Son Hoang, Siwei Guo, and C. Buddie Mullins, "Co-incorporation of N and Ta into TiO2 nanowires for visible-light driven photoelectrochemical water oxidation," J. Phys. Chem. C. 

Awards and Honors

- Undergraduate Research Fellowship - The University of Texas at Austin (2011-2012)