Bo-Ryehn Chung ’18
Structure and Chemistry of Al-Oxide Nanoparticles
Over the summer, I began research on Al-hydroxide crystallization, to understand how different Al-amorphous and nanoparticulate phases react with other soluble species in the environment. This work contributes to a larger-scale project of synthesizing certain Al-hydroxide nanoparticles for use in water purification. Predominantly using ATR-FTIR spectroscopy, I determined the hydroxides formed during Al3+ hydrolysis, and analyzed their rates of transformation from disordered amorphous to crystalline nanoparticles, stability in environmentally relevant conditions in terms of temperature and pH, and structural effects from ligand interaction. I became skilled in obtaining consistent ATR-FTIR spectra and processing the data. Compared to my previous research experiences, I gained more independence, initiative, and confidence in steering my own scientific investigations. The background research I conducted on standard Al-hydroxide spectra will also be published as a review paper. Although I am a neuroscience major, I am grateful for the opportunity to have contributed to an environmentally meaningful project.
Myneni Group, Geosciences Department, Princeton University, Princeton, NJ
Satish Myneni, Professor, Geosciences