Research output: Contribution to journal › Article › peer-review
Surface interaction of copper phthalocyanine modified single walled carbon nanotubes with pesticides. / Hassan, Aseel; Banimuslem, Hikmat; Basova, Tamara et al.
In: Sensors and Actuators, B: Chemical, Vol. 224, 03.2016, p. 780-788.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Surface interaction of copper phthalocyanine modified single walled carbon nanotubes with pesticides
AU - Hassan, Aseel
AU - Banimuslem, Hikmat
AU - Basova, Tamara
AU - Gülmez, Asuman Dakoʇlu
AU - Durmuş, Mahmut
AU - Gürek, Ayşe Gül
AU - Ahsen, Vefa
PY - 2016/3
Y1 - 2016/3
N2 - Hybrid materials were produced by mixing tetrakis(hexadecylthio) substituted copper(II) phthalocyanine (CuPcR4) with acidified single-walled carbon nanotubes (SWCNTs) and they were characterised by UV-vis absorption spectroscopy, scanning electron microscopy and atomic force microscopy. Thin films of pristine CuPcR4 and CuPcR4/SWCNT were prepared by spin coating onto gold-coated glass slides and applied as active layers to detect pentachlorophenol (PCP), 2-chlorophenol, diuron and simazine in water utilising total internal reflection ellipsometry (TIRE) as an optical detection method. Different concentrations of pesticides in water ranging from 1 to 25 μg/L have been examined in the current work. It is revealed that the shifts in Δ(λ) spectra of CuPcR4/SWCNT films were evidently larger than those produced by the pristine CuPcR4 films, indicating largely improved films' sensitivity of the hybrid films. The sensitivity has been calculated according to the phase shift in the Δ(λ) spectra. The higher sensitivity was found to be 0.00396/(μg/L) towards PCP in case of CuPcR4/SWCNT sensor. The lower detection limit has been calculated to be 840 ng/L.
AB - Hybrid materials were produced by mixing tetrakis(hexadecylthio) substituted copper(II) phthalocyanine (CuPcR4) with acidified single-walled carbon nanotubes (SWCNTs) and they were characterised by UV-vis absorption spectroscopy, scanning electron microscopy and atomic force microscopy. Thin films of pristine CuPcR4 and CuPcR4/SWCNT were prepared by spin coating onto gold-coated glass slides and applied as active layers to detect pentachlorophenol (PCP), 2-chlorophenol, diuron and simazine in water utilising total internal reflection ellipsometry (TIRE) as an optical detection method. Different concentrations of pesticides in water ranging from 1 to 25 μg/L have been examined in the current work. It is revealed that the shifts in Δ(λ) spectra of CuPcR4/SWCNT films were evidently larger than those produced by the pristine CuPcR4 films, indicating largely improved films' sensitivity of the hybrid films. The sensitivity has been calculated according to the phase shift in the Δ(λ) spectra. The higher sensitivity was found to be 0.00396/(μg/L) towards PCP in case of CuPcR4/SWCNT sensor. The lower detection limit has been calculated to be 840 ng/L.
KW - Copper(II) phthalocyanine
KW - Pesticides
KW - Single-walled carbon nanotubes
KW - TIRE
UR - http://www.scopus.com/inward/record.url?scp=84946780370&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2015.10.105
DO - 10.1016/j.snb.2015.10.105
M3 - Article
AN - SCOPUS:84946780370
VL - 224
SP - 780
EP - 788
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
ER -
ID: 25436662