Title :
Optimization of Photocatalytic Degradation of Endocrine Disrupting Chemical Bisphenol A by Using Response Surface Methodology
Author :
Du, Erdeng ; Zhang, Yuxian ; Zheng, Lu ; Li, Zhi
Author_Institution :
State Key Lab. of Pollution Control & Resource Reuse, Tongji Univ., Shanghai, China
Abstract :
Photocatalytic degradation of endocrine disrupting chemical bisphenol A (BPA) by TiO2 with 245 nm ultraviolet (UV) light was studied in a batch reactor. Response surface methodology (RSM) and central composite design (CCD) were employed to optimize three parameters, viz. TiO2 concentration, initial BPA concentration, and UV light intensity. The optimized conditions of photocatalytic degradation of BPA were as follows: TiO2 concentration, 1.80 g/L; initial BPA concentration, 41.08 mg/L; UV light intensity, 6.61 mw/cm2. Under these conditions, the maximal BPA removal efficiency of 82.3% was achieved. Also, a polynomial expression modeling the reaction was obtained. The model fitted well with the experimental data, indicating the suitability of the model and the success of response surface methodology (RSM) in optimizing the conditions of photocatalysis.
Keywords :
biochemistry; biological effects of ultraviolet radiation; catalysis; molecular biophysics; photochemistry; polynomial approximation; response surface methodology; titanium compounds; BPA removal efficiency; TiO2; batch reactor; bisphenol; central composite design; efficiency 82.3 percent; endocrine; photocatalytic degradation; polynomial expression; response surface methodology; wavelength 245 nm; Charge coupled devices; Chemical reactors; Degradation; Design optimization; Endocrine system; Inductors; Optimization methods; Response surface methodology; Surface contamination; Water pollution;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163158
