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Photodegradation of bisphenol-A in a batch TiO2 suspension reactor.
J Hazard Mater. 2009 Aug 30; 168(1):269-75.JH

Abstract

In this work, the photocatalytic behaviors of bisphenol-A (BPA), which has been listed as one of endocrine disrupting chemicals, were carried out in a batch TiO(2) suspension reactor. The photodegradation efficiency has been investigated under the controlled process parameters including initial BPA concentration (i.e., 1-50 mg L(-1)), TiO(2) dosage (i.e., 5-600 mg/200 cm(3)), initial pH (i.e., 3-11), and temperature (i.e., 10-70 degrees C). It was found that the optimal conditions in the photoreaction process could be coped with at initial BPA concentration=20 mg L(-1), TiO(2) dosage=0.5 g L(-1) (100mg/200 cm(3)), initial pH=7.0, and temperature=25 degrees C. According to the Langmuir-Hinshelwood model, the results showed that the photodegradation kinetics for the destruction of BPA in water also followed the first-order model well. The apparent first-order reaction constants (k(obs)), thus obtained from the fittings of the model, were in line with the destruction-removal efficiencies of BPA in all the photocatalytic experiments. Based on the intermediate products identified in the study, the possible mechanisms for the photodegradation of BPA in water were also proposed in the present study.

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Authors+Show Affiliations

Tsai WT
Graduate Institute of Bioresources, National Pingtung University of Science and Technology, Pingtung 912, Taiwan. wttsai@mail.npust.edu.tw
Lee MK
No affiliation info available
Su TY
No affiliation info available
Chang YM
No affiliation info available

MeSH

Benzhydryl CompoundsEstrogens, Non-SteroidalHydrogen-Ion ConcentrationKineticsPhenolsPhotolysisSuspensionsTemperatureTitaniumWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19285792

Citation

Tsai, Wen-Tien, et al. "Photodegradation of bisphenol-A in a Batch TiO2 Suspension Reactor." Journal of Hazardous Materials, vol. 168, no. 1, 2009, pp. 269-75.
Tsai WT, Lee MK, Su TY, et al. Photodegradation of bisphenol-A in a batch TiO2 suspension reactor. J Hazard Mater. 2009;168(1):269-75.
Tsai, W. T., Lee, M. K., Su, T. Y., & Chang, Y. M. (2009). Photodegradation of bisphenol-A in a batch TiO2 suspension reactor. Journal of Hazardous Materials, 168(1), 269-75. https://doi.org/10.1016/j.jhazmat.2009.02.034
Tsai WT, et al. Photodegradation of bisphenol-A in a Batch TiO2 Suspension Reactor. J Hazard Mater. 2009 Aug 30;168(1):269-75. PubMed PMID: 19285792.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photodegradation of bisphenol-A in a batch TiO2 suspension reactor. AU - Tsai,Wen-Tien, AU - Lee,Mei-Kuei, AU - Su,Ting-Yi, AU - Chang,Yuan-Ming, Y1 - 2009/02/20/ PY - 2008/10/30/received PY - 2009/02/05/revised PY - 2009/02/06/accepted PY - 2009/3/17/entrez PY - 2009/3/17/pubmed PY - 2009/8/6/medline SP - 269 EP - 75 JF - Journal of hazardous materials JO - J Hazard Mater VL - 168 IS - 1 N2 - In this work, the photocatalytic behaviors of bisphenol-A (BPA), which has been listed as one of endocrine disrupting chemicals, were carried out in a batch TiO(2) suspension reactor. The photodegradation efficiency has been investigated under the controlled process parameters including initial BPA concentration (i.e., 1-50 mg L(-1)), TiO(2) dosage (i.e., 5-600 mg/200 cm(3)), initial pH (i.e., 3-11), and temperature (i.e., 10-70 degrees C). It was found that the optimal conditions in the photoreaction process could be coped with at initial BPA concentration=20 mg L(-1), TiO(2) dosage=0.5 g L(-1) (100mg/200 cm(3)), initial pH=7.0, and temperature=25 degrees C. According to the Langmuir-Hinshelwood model, the results showed that the photodegradation kinetics for the destruction of BPA in water also followed the first-order model well. The apparent first-order reaction constants (k(obs)), thus obtained from the fittings of the model, were in line with the destruction-removal efficiencies of BPA in all the photocatalytic experiments. Based on the intermediate products identified in the study, the possible mechanisms for the photodegradation of BPA in water were also proposed in the present study. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19285792/Photodegradation_of_bisphenol_A_in_a_batch_TiO2_suspension_reactor_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)00221-0 DB - PRIME DP - Unbound Medicine ER -