People
Postdoctoral Researchers
Neeraj Chauhan, Ph.D.
Neeraj Chauhan is a Postdoctoral Research Fellow in the Department of Geosciences at National Taiwan University under the NSTC Postdoctoral Fellowship Program. He joined the Earth & Environmental Materials Laboratory (E&EM Lab) led by Prof. Satoshi Utsunomiya, where he works on the project "Advanced Hot Particle Science: Radioactive Microparticles Generated by Nuclear Accidents as Probes of Meltdown Processes and Environmental Impacts." He has expertise in contaminant transport, environmental geochemistry, groundwater quality, radionuclide behavior, environmental risk assessment, and materials synthesis.
He completed his PhD in Chemistry at Panjab University, Chandigarh, India (2025). His doctoral research investigates the occurrence, mobility, and fate of metals and radionuclides in environmental systems using a combination of field studies, laboratory experiments, and advanced conventional and nuclear analytical techniques. His work also includes the synthesis and characterization of nanomaterials for sustainable energy applications and pollutant sensing and degradation.
During his PhD, he was awarded the prestigious Commonwealth Split-site Scholarship to conduct research at the University of Birmingham, U.K. (2023–2024), where he investigated uranium and heavy metal mobilisation in groundwater and soils and gained experience studying microplastic transport and behaviour under rainfall-driven conditions.
His work has been published in international peer-reviewed journals, including ACS ES&T Water, ACS Industrial & Engineering Chemistry Research, JRNC, and JRPR. He actively contributes to the international scientific community through presentations at major conferences, including EGU, AGU, MRS, EBNET ERC, NAT, and other national and international meetings.
Following the completion of his PhD, he has also worked as an Environmental Chemistry Consultant and Research Associate with the University of Georgia, USA and the University of Birmingham, UK, contributing to projects focused on groundwater sustainability and water-resource management, and micro/nano- plastic in waste-water treatment plants.
His long-term vision is to advance interdisciplinary research integrating environmental geochemistry, hydrogeology, geomicrobiology, and advanced materials science to address global challenges related to groundwater quality, contaminant transport, radionuclide behavior, environmental sustainability, critical element recovery and sustainable resource management.
Undergraduate Students
Yen-Ning Chang
My name is Yen-Ning Chang. I am a senior student in the Department of Geosciences at National Taiwan University and am pursuing an Interdisciplinary Bachelor's Program. I am particularly interested in mineralogy and petrology and am currently learning and conducting research in the laboratory. In my free time, I enjoy collecting minerals and gemstones. Outside of research, I enjoy classical music, play piano and guitar, and like digital art and illustration.
We welcome students who are interested in environmental geochemistry, geomicrobiology, and nanoscale materials research.
