Heterogeneous photocatalytic degradation of p-toluenesulfonic acid using concentrated solar radiation in slurry photoreactor

• Published in: Journal of hazardous materials 2007-02, Vol.140 (1), p.149-154
• Main Authors: Kamble, Sanjay P., Sawant, Sudhir B., Pangarkar, Vishwas G.
• Format: Article
• Language: English
• Subjects: Anion; Applied sciences; Benzenesulfonates - chemistry; Benzenesulfonates - radiation effects; Catalysis; Catalytic reactions; Cation effects; Chemical engineering; Chemistry; Concentrated solar radiation; Exact sciences and technology; General and physical chemistry; Hydrogen-Ion Concentration; Kinetics; p-Toluenesulfonic acid; Photocatalytic degradation; Photochemistry; Pollution; Radiation; Reactors; Slurry bubble column reactor; Solar Energy; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2006.06.064

In this work, the photocatalytic degradation (PCD) of p-toluenesulfonic acid ( p-TSA) in batch reactor using concentrated solar radiation was investigated. The effect of the various operating parameters such as initial concentration of substrate, catalyst loading, solution pH and types of ions on photocatalytic degradation has been studied in a batch reactor to derive the optimum conditions. The rate of photocatalytic degradation was found to be maximum at the self pH (pH 3.34) of p-TSA. It was also observed that in the presence of anions and cations, the rate of PCD decreases drastically. The kinetics of photocatalytic degradation of p-TSA was studied. The PCD of p-TSA was also carried at these optimized conditions in a bench scale slurry bubble column reactor using concentrated solar radiation.