Date of Award


Degree Name

Doctor of Philosophy



First Advisor

Dr. Ekkehard Sinn

Second Advisor

Dr. Dongil Lee

Third Advisor

Dr. Yirong Mo

Fourth Advisor

Dr. John Miller


Semiconductor and metal clusters in the nanometer size regime display interesting optical, electronic and chemical properties that are size dependant. Highly monodisperse gold nanoparticles of different sizes have been synthesized and isolated by newly developed methodologies, using tiopronin as the capping ligand. Titanium dioxide nanoparticles (Ti02) have been used as the photocatalytic center and gold nanoparticles have been attached on Ti02 to make a nanocomposite. According to the findings, gold nanoparticles play a vital role in enhancing the photocatalytic activity of Ti02, by facilitating the charge separation. Further, the photocatalytic activity also can be tuned by changing the gold loading on Ti02. The applicability of the nanocomposite has been evaluated towards the degradation of environmental pollutants.


5th Advisor: Dr. Brian Tripp

Access Setting

Dissertation-Open Access

Included in

Chemistry Commons