Theses and Dissertations - UTRGV

Date of Award


Document Type


Degree Name

Master of Science (MS)



First Advisor

Dr. Jason G. Parsons

Second Advisor

Dr. Evangelia Kotsikorou

Third Advisor

Dr. Arnulfo Mar


The photocatalytic degradation of simazine under visible light by using ZnO/MoS2 heterostructures was investigated. Reaction parameters studied to optimize simazine degradation included pH, loading mass of the photocatalyst, and percentage of MoS2 in the heterostructure. pH 2 was the optimal environment for the degradation reaction of all catalysts. A loading mass of 20 mg for each of the ZnO/MoS2 photocatalysts was determined to be the most effective for in the degradation process. The degradation reactions were observed to follow 2nd order kinetics for all photocatalysts at all temperatures. Band gap studies confirmed a lower energy than that of pure ZnO for all synthesized photocatalysts.


Copyright 2019 Alexandria Castillo. All Rights Reserved.

Included in

Chemistry Commons