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Cu-TiO2 nanorods with enhanced ultraviolet- and visible-light photoactivity for bisphenol A degradation.
J Hazard Mater. 2014 Jul 30; 277:84-92.JH

Abstract

In this study, the microwave-assisted sol-gel method and chemical reduction were used to synthesize Cu-TiO2 nanorod composites for enhanced photocatalytic degradation of bisphenol A (BPA) in the presence of UV and visible lights. The electron microscopic images showed that the Cu nanoparticles at 4.5±0.1nm were well-deposited onto the surface of TiO2 nanorods after chemical reduction of Cu ions by NaBH4. The X-ray diffractometry patterns and X-ray photoelectron spectroscopic results indicated that Cu species on the Cu-TiO2 nanorods were mainly the mixture of Cu2O and Cu(0). The Cu-TiO2 nanorods showed excellent photocatalytic activity toward BPA photodegradation under the irradiation of UV and visible lights. The pseudo-first-order rate constant (kobs) for BPA photodegradation by 7wt% Cu-TiO2 nanorods were 18.4 and 3.8 times higher than those of as-synthesized TiO2 nanorods and Degussa P25 TiO2, respectively, under the UV light irradiation. In addition, the kobs for BPA photodegradation by 7wt% Cu-TiO2 nanorods increased by a factor of 5.8 when compared with that of Degussa P25 TiO2 under the irradiation of 460±40nm visible light. Results obtained in this study clearly demonstrate the feasibility of using one-dimensional Cu-TiO2 nanorods for photocatalytic degradation of BPA and other pharmaceutical and personal care products in water and wastewater treatment plants.

Authors+Show Affiliations

Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan.Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan. Electronic address: radoong@mx.nthu.edu.tw.

Pub Type(s)

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

Language

eng

PubMed ID

24556011

Citation

Chiang, Li-Fen, and Ruey-An Doong. "Cu-TiO2 Nanorods With Enhanced Ultraviolet- and Visible-light Photoactivity for Bisphenol a Degradation." Journal of Hazardous Materials, vol. 277, 2014, pp. 84-92.
Chiang LF, Doong RA. Cu-TiO2 nanorods with enhanced ultraviolet- and visible-light photoactivity for bisphenol A degradation. J Hazard Mater. 2014;277:84-92.
Chiang, L. F., & Doong, R. A. (2014). Cu-TiO2 nanorods with enhanced ultraviolet- and visible-light photoactivity for bisphenol A degradation. Journal of Hazardous Materials, 277, 84-92. https://doi.org/10.1016/j.jhazmat.2014.01.047
Chiang LF, Doong RA. Cu-TiO2 Nanorods With Enhanced Ultraviolet- and Visible-light Photoactivity for Bisphenol a Degradation. J Hazard Mater. 2014 Jul 30;277:84-92. PubMed PMID: 24556011.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cu-TiO2 nanorods with enhanced ultraviolet- and visible-light photoactivity for bisphenol A degradation. AU - Chiang,Li-Fen, AU - Doong,Ruey-An, Y1 - 2014/02/01/ PY - 2013/08/31/received PY - 2014/01/21/revised PY - 2014/01/27/accepted PY - 2014/2/22/entrez PY - 2014/2/22/pubmed PY - 2015/2/24/medline KW - Bisphenol A KW - Copper ions KW - Microwave-assisted KW - Sol–gel KW - TiO(2) nanorods KW - Visible-light-driven photodegradation SP - 84 EP - 92 JF - Journal of hazardous materials JO - J Hazard Mater VL - 277 N2 - In this study, the microwave-assisted sol-gel method and chemical reduction were used to synthesize Cu-TiO2 nanorod composites for enhanced photocatalytic degradation of bisphenol A (BPA) in the presence of UV and visible lights. The electron microscopic images showed that the Cu nanoparticles at 4.5±0.1nm were well-deposited onto the surface of TiO2 nanorods after chemical reduction of Cu ions by NaBH4. The X-ray diffractometry patterns and X-ray photoelectron spectroscopic results indicated that Cu species on the Cu-TiO2 nanorods were mainly the mixture of Cu2O and Cu(0). The Cu-TiO2 nanorods showed excellent photocatalytic activity toward BPA photodegradation under the irradiation of UV and visible lights. The pseudo-first-order rate constant (kobs) for BPA photodegradation by 7wt% Cu-TiO2 nanorods were 18.4 and 3.8 times higher than those of as-synthesized TiO2 nanorods and Degussa P25 TiO2, respectively, under the UV light irradiation. In addition, the kobs for BPA photodegradation by 7wt% Cu-TiO2 nanorods increased by a factor of 5.8 when compared with that of Degussa P25 TiO2 under the irradiation of 460±40nm visible light. Results obtained in this study clearly demonstrate the feasibility of using one-dimensional Cu-TiO2 nanorods for photocatalytic degradation of BPA and other pharmaceutical and personal care products in water and wastewater treatment plants. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/24556011/Cu_TiO2_nanorods_with_enhanced_ultraviolet__and_visible_light_photoactivity_for_bisphenol_A_degradation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(14)00071-5 DB - PRIME DP - Unbound Medicine ER -