TY - JOUR
T1 - Hydroxyl radical generation by cactus-like copper oxide nanoporous carbon catalysts for microcystin-LR environmental remediation
AU - Karthikeyan, S.
AU - Dionysiou, Dionysios D.
AU - Lee, Adam F.
AU - Suvitha, S.
AU - Maharaja, P.
AU - Wilson, Karen
AU - Sekaran, G.
N1 - Funding: CSIR, India (31/6IJ365)/2012-EMR-I) for Senior Research Fellowship; SETCA network programme; University of Cincinnati; EPSRC (EP/G007594/4) for Leadership Fellowship; and Royal Society for an Industry Fellowship.
PY - 2015
Y1 - 2015
N2 - Copper oxide supported on nanoporous activated carbon (CuO-NPAC) is reported for the aqueous phase catalytic degradation of cyanotoxin microcystin-LR (MC-LR). The loading and spatial distribution of CuO throughout the NPAC matrix strongly influence the catalytic efficiency. CuO-NPAC synthesis was optimized with respect to the copper loading and thermal processing, and the physicochemical properties of the resulting materials were characterized by XRD, BET, TEM, SEM, EPR, TGA, XPS and FT-IR spectroscopy. EPR spin trapping and fluorescence spectroscopy showed in situ ˙OH formation via H2O2 over CuO-NPAC as the catalytically relevant oxidant. The impact of reaction conditions, notably CuO-NPAC loading, H2O2 concentration and solution pH, is discussed in relation to the reaction kinetics for MC-LR remediation.
AB - Copper oxide supported on nanoporous activated carbon (CuO-NPAC) is reported for the aqueous phase catalytic degradation of cyanotoxin microcystin-LR (MC-LR). The loading and spatial distribution of CuO throughout the NPAC matrix strongly influence the catalytic efficiency. CuO-NPAC synthesis was optimized with respect to the copper loading and thermal processing, and the physicochemical properties of the resulting materials were characterized by XRD, BET, TEM, SEM, EPR, TGA, XPS and FT-IR spectroscopy. EPR spin trapping and fluorescence spectroscopy showed in situ ˙OH formation via H2O2 over CuO-NPAC as the catalytically relevant oxidant. The impact of reaction conditions, notably CuO-NPAC loading, H2O2 concentration and solution pH, is discussed in relation to the reaction kinetics for MC-LR remediation.
UR - http://www.scopus.com/inward/record.url?scp=84955465270&partnerID=8YFLogxK
UR - http://pubs.rsc.org/en/Content/ArticleLanding/2016/CY/C5CY00888C#!divAbstract
U2 - 10.1039/C5CY00888C
DO - 10.1039/C5CY00888C
M3 - Article
SN - 2044-4753
VL - 6
SP - 530
EP - 544
JO - Catalysis Science and Technology
JF - Catalysis Science and Technology
IS - 2
ER -