Name of Participant: Assoc. Prof. Dr. SIN JIN CHUNG
Name of Presenter: Assoc. Prof. Dr. SIN JIN CHUNG
Email: sinjc@utar.edu.my
Phone: 0164638817
Address: Department of Petrochemical Engineering/Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Perak, Malaysia
Job: Lecturer
Participant ID : ET27
Mode of Presenter (Requested): Oral Presenter
Paper Title: Response surface approach for visible light-driven photodegradation of sunset yellow over flower-like BiOBr hierarchical structures
Scope/Category: Environmental Technology
Mode of Presenter (Given) : Oral Presenter
Abstract

Flower-like BiOBr hierarchical structures were successfully prepared via a surfactant-free hydrothermal method. The structure and properties of the as-prepared samples were characterized by X-ray diffraction, energy dispersion X-ray, field-emission scanning electron microscopy and UV-vis diffuse reflectance spectroscopy. Characterization results elucidated that the flower-like BiOBr were built from numerous well-developed nanosheets and formed an open porous structure through oriented aggregation. The as-prepared samples were also found to be well-crystalline and possessing tetragonal phase pure BiOBr. Interactive effects of catalyst loading, initial substrate concentration, solution pH and visible light exposure time were also investigated. Under optimized conditions, 69.7% degradation of sunset yellow was achieved with 1.31 g/L catalyst loading, 10 mg/L sunset yellow concentration, pH 3.0 and 180 min irradiation time. The photocatalytic technology using flower-like BiOBr hierarchical structures had the potential to effectively purify wastewater.

 

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