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Photocatalytic treatment of pharmaceutical wastewater using new multiwall-carbon nanotubes/TiO2/SiO2 nanocomposites.
Environ Res. 2015 Feb; 137:176-84.ER

Abstract

For the photocatalytic removal of bisphenol A (BPA) and carbamazepine (CBZ) from water solution a new multiwall-carbon nanotubes and TiO2/SiO2 nanocomposites (MWCNT-TiO2-SiO2) were applied. Nanocomposites with the addition of 0.15-17.8 wt% MWCNT show high potential for the removal of both pollutants. The starting concentration of each contaminant was halved during 20 min of UVA irradiation. The decomposition process of CBZ over investigated nanocomposites proceeded differently than it was observed for the classical photocatalyst P25. The kinetics of the removal followed as a pseudo-first order regime with the k1 in range 0.0827-0.1751 min(-1) for BPA and 0.0131-0.0743 min(-1) for CBZ. Toxicity to Vibrio fischeri and Daphnia magna was significantly reduced indicating formation of non-toxic products of photooxidation of tested contaminants.

Authors+Show Affiliations

Department of Environmental Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Lublin, Poland. Electronic address: bczech@hektor.umcs.lublin.pl.Department of Adsorption, Faculty of Chemistry, Maria Curie-Skłodowska University, Lublin, Poland.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25543548

Citation

Czech, Bożena, and Waldemar Buda. "Photocatalytic Treatment of Pharmaceutical Wastewater Using New Multiwall-carbon nanotubes/TiO2/SiO2 Nanocomposites." Environmental Research, vol. 137, 2015, pp. 176-84.
Czech B, Buda W. Photocatalytic treatment of pharmaceutical wastewater using new multiwall-carbon nanotubes/TiO2/SiO2 nanocomposites. Environ Res. 2015;137:176-84.
Czech, B., & Buda, W. (2015). Photocatalytic treatment of pharmaceutical wastewater using new multiwall-carbon nanotubes/TiO2/SiO2 nanocomposites. Environmental Research, 137, 176-84. https://doi.org/10.1016/j.envres.2014.12.006
Czech B, Buda W. Photocatalytic Treatment of Pharmaceutical Wastewater Using New Multiwall-carbon nanotubes/TiO2/SiO2 Nanocomposites. Environ Res. 2015;137:176-84. PubMed PMID: 25543548.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photocatalytic treatment of pharmaceutical wastewater using new multiwall-carbon nanotubes/TiO2/SiO2 nanocomposites. AU - Czech,Bożena, AU - Buda,Waldemar, Y1 - 2014/12/26/ PY - 2014/10/08/received PY - 2014/12/03/revised PY - 2014/12/05/accepted PY - 2014/12/30/entrez PY - 2014/12/30/pubmed PY - 2015/5/6/medline KW - Bisphenol A KW - Carbamazepine KW - Nanocomposites KW - Photocatalysis KW - TiO(2) SP - 176 EP - 84 JF - Environmental research JO - Environ Res VL - 137 N2 - For the photocatalytic removal of bisphenol A (BPA) and carbamazepine (CBZ) from water solution a new multiwall-carbon nanotubes and TiO2/SiO2 nanocomposites (MWCNT-TiO2-SiO2) were applied. Nanocomposites with the addition of 0.15-17.8 wt% MWCNT show high potential for the removal of both pollutants. The starting concentration of each contaminant was halved during 20 min of UVA irradiation. The decomposition process of CBZ over investigated nanocomposites proceeded differently than it was observed for the classical photocatalyst P25. The kinetics of the removal followed as a pseudo-first order regime with the k1 in range 0.0827-0.1751 min(-1) for BPA and 0.0131-0.0743 min(-1) for CBZ. Toxicity to Vibrio fischeri and Daphnia magna was significantly reduced indicating formation of non-toxic products of photooxidation of tested contaminants. SN - 1096-0953 UR - https://www.unboundmedicine.com/medline/citation/25543548/Photocatalytic_treatment_of_pharmaceutical_wastewater_using_new_multiwall_carbon_nanotubes/TiO2/SiO2_nanocomposites_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0013-9351(14)00455-1 DB - PRIME DP - Unbound Medicine ER -