Research Interests
Interfacial phenomena play a paramount role in a wide range of natural and engineered water systems. Our first goal is to understand the physics and chemistry of interfacial phenomena relevant to water purification processes. We utilize nanoscale experimental techniques including quartz-crystal microbalance with dissipation monitoring, atomic force microscope, and electrochemical impedance spectroscopy to probe interfacial processes. Our second goal is to leverage the insights from fundamental interfacial science studies to innovate materials, processes, and devices for tackling the grand challenges of water and resource scarcity.
Our research aims to develop more durable, cost-effective, selective, and electrified separation processes. The tools we use include colloid and interface science, electrochemistry, and techno-economic assessment. We currently explore the application of interfacial and separation technologies in 1) water desalination; 2) groundwater remediation; and 3) direct lithium extraction.
Research Highlights
Openings
We currently have openings for 1-2 Ph.D. students for Fall 2025 entry and later. If you are interested in our research after reading our publications, you are encouraged to contact Prof. Liu directly at xitongliu@gwu.edu with the email subject “GWU Ph.D. application.” Please provide a CV in pdf version in your email showing your GPA, the contact information for three references, and a full list of publications if applicable. International applicants should also provide IELTS or TOEFL scores. GRE score is currently optional for Ph.D. applications. Admission requirements can be found here.
Visiting students and scholars are welcome to contact Prof. Liu at xitongliu@gwu.edu by email. Please attach a CV with a full list of your publications and the contact information for three references.
Master’s students at GWU who are interested in completing a thesis in the Liu Research Group are welcome to contact Prof. Liu at xitongliu@gwu.edu. Please attach a CV with your GPA, courses, and research experiences.
We also welcome undergraduate students at GWU to join our group to conduct research projects. Information about undergraduate research support at GWU can be found here.
Address and Contact
Mailing Address: Department of Civil and Environmental Engineering
Science & Engineering Hall, Room 3000
800 22nd Street, NW
Washington, DC 20052
Office: Science & Engineering Hall, Room 3520
Email: xitongliu@gwu.edu
Phone: (202) 994-4964
Fax: (202) 994-0127
Department contact information can be found here.
Graduate admission information can be found here.