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Synthesis of a ZnO nanorod/CVD graphene composite for simultaneous sensing
of dihydroxybenzene isomers
Can Ge a, Hongji Li b, *, Mingji Li a, *, Cuiping Li a, Xiaoguo Wu a, Baohe Yang a
a Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electronics
Information Engineering, Tianjin University of Technology, Tianjin 300384, P.R. China
b Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry
and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P.R. China
*Corresponding authors.
E-mail: hongjili@yeah.net (Hongji Li); limingji@163.com (Mingji Li)
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Table S1. Performance comparison of the fabricated electrode for HQ, CC and RC
detection versus other electrodes.
Electrodes Linear range (μM) LOD (μM) Method Ref.HQ CC RC HQ CC RC
Graphene-chitosan/GCE
1-300 1-400 1-550 0.75 0.75
0.75
DPV;Selective detection
[7]
MWCNT-SH@Au-graphene/GCE
54.5-1250.5
11.0-126.0 43.5-778.5
4.17 1.0 7.8 DPV;Selective detection
[8]
MWCNTs/CDs/MWCNTs/GCE
1-200 4-200 1-400 0.07 0.06
0.15
DPV;Selective detection
[9]
WS2-graphene/GCE 1-100 1-100 1-100 0.1 0.2 0.1 DPV;Simultaneous detection
[10]
Polyaniline/MnO2/GCE 0.2-100 0.2-100 0.2-100 0.13 0.16
0.09
DPV;Simultaneous detection
[11]
SWCNT/GCE 0.4-1040-100
0.4-1040-100
0.4-1040-100
0.12 0.26
0.3 2.5th-order differential voltammetry
[49]
MWCNT/GCE 2-100 2-100 5-80 0.6 0.6 1 LSV;Selective detection
[50]
ZnO/graphene/Ta 0-70 0-80 0-700 0.1 0.2 1 CV; Simultaneous detection
This
work
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Fig. S5- CV curves for interferences including 0.4 mM CaCl2, 0.4 mM CuSO4, 0.4 mM KCl, 0.4 mM
Mg(NO3)2, 0.4 mM Na2HPO4, 0.4 mM NaH2PO4, 0.4 mM Ni(NO3)2, 0.4 mM Zn(NO3)2, 0.1 mM
aniline, and 0.1 mM phenol in the presence of 0.1 mM HQ, 0.1 mM CC and 0.1 mM RC.
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Table S2.
The response of the ZnO/graphene/Ta electrode to the interferences.
InterferencesResponse with respect to HQ (%)
Response with respect to CC (%)
Response with respect to RC (%)
CaCl2 2.76% 2.49% 3.01%
CuSO4 3.71% 0.41% 3.27%
KCl 3.02% 1.76% 3.41%
Mg(NO3)2 4.10% 3.93% 3.41%
Na2HPO4 4.45% 1.44% 1.96%
NaH2PO4 4.73% 1.32% 3.77%
Ni(NO3)2 4.55% 2.08% 2.84%
Zn(NO3)2 2.77% 2.06% 4.07%
Aniline 1.40% 4.00% 4.93%
Phenol 0.01% 4.34% 3.65%
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