Abstract
This study presents the sono-photocatalytic hydrogen generation (HER), using ZnO and theraphthal, a water-soluble sodium salt of cobalt 4,5-carboxyphthalocyanine (TP). HER efficiency was optimized by a multivariable design of experiments modifying 5 factors (additives): (i) ascorbic acid, (ii) zinc oxide load, (iii) ultrasound power, (iv) ethanol, and (v) theraphthal under UV irradiation. Differences in hydrogen production according to the variable employed factors were observed in the reactions, resulting in higher yields when larger amounts of ethanol were used. Hydrogen evolution reached a maximum concentration near to 67 μmol (669 μmol g−1) in the HER process, when zinc oxide, theraphthal, and ascorbic acid in water/ethanol mixture were combined. Statistical analysis suggests that the H2 production was influenced mainly by the presence of alcohol in the reaction medium.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
