Journal of Chemical Engineering & Process Technology
Open Access

Synergy of N-doped TiO2 and visible LED irradiation in peroxymonosulfate activation: Application to monuron decay and reaction kinetics

5^th World Congress on Catalysis and Chemical Engineering

September 05-06, 2018 Tokyo, Japan

Amal Abdelhaleem and Wei Chu

The Hong Kong Polytechnic University, Hong Kong

Scientific Tracks Abstracts: J Chem Eng Process Technol

Abstract :

The combination of N-doped TiO2 photocatalyst (NT) and visible LED irradiation (Vis LED) was explored for monuron degradation via Peroxymonosulfate (PMS) activation. It was found that the generated �?�OH and SO4 �??�?� have a significant role in the monuron degradation with a ratio of about 3 to 1, respectively; and the holes at the NT surface are the main precursors for producing SO4 �??�?�. The monuron was efficiently degraded under a wide solution pH range of 2.5-9.2, where higher than 80% decay was achieved. Furthermore, the efficiency of the NT/PMS/Vis LED process was not reduced in the presence of high concentrations of inorganic anions in the solution, which renders this process attractive for the treatment of anions rich wastewater in the cities (like Hong Kong). Considering several factors such as the use of non-metal dopant and energy efficient Vis LED light source, this process could be deployed as a sustainable and environmentally friendly approach for degradation of organic pollutants in wastewater through PMS activation.

Biography :

Amal has been working at Ministry of State of Environmental Affairs, Egypt. Her responsibilities have included assessment of water and wastewater quality and management of solid and hazardous wastes. She is also about to complete her Ph.D. degree from Civil and Environmental Engineering department, The Hong Kong Polytechnic University, Hong Kong.

E-mail: amal.abdelhaleem@connect.polyu.hk