Influence of clay-bound sodium-dodecyl sulfate on electrochemical behaviour of nicotine
Аутори
Mudrinić, TihanaMojović, Zorica
Milutinović Nikolić, Aleksandra
Jović-Jovičić, Nataša
Banković, Predrag
Marinović, Sanja
Jovanović, Dušan
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this study, electrode coating based on sodium dodecyl sulfate (SDS) bound to smectite clay was synthesized
and characterized. In order to enable SDS bonding to clay surface, the acid modification of clay was previously
performed at 90 ºC for 2 h. The acid modification changed surface charge of smectite into positive, thus enabling
electrostatic interaction with negative sulfate ions from SDS. The presence of SDS in SDS/acid modified smectite
(SDS/AMS) structure was confirmed by elemental analysis. SEM analysis revealed the morphology of the
obtained sample. Glassy carbon electrode (GCE) was modified with a suspension of the synthesized SDS/AMS
and Nafion® solution (GCE-SDS/AMS) and a uniform film was obtained [1]. The electrochemical behaviour of
nicotine was tested with modified GCE using cyclic voltammetry. It has been shown previously that the electrochemical
response of nicotine on carbon based electrodes can be improved by adding SDS into electrolyte solution
[2]. On t...he other hand, clays have the ability to preconcentrate analytes because of their porous structure and the
presence of potential active sites [3]. Acid activated clays can be modified with SDS [4]. Therefore, the aim of
this study was to investigate the influence of SDS bound to smectite on the electrochemical behaviour of nicotine.
Britton-Robinson (BR) (0.1 M) supporting electrolyte buffer solutions in the pH range from 2.0-10.0 was used for
preparing the supporting electrolyte of nicotine. The influence of the pH of the supporting electrolyte, scan rate
and accumulation time were investigated and discussed. The GCE-SDS/AMS exhibited similar electrochemical
behaviour in comparison with the bare GCE but with the differences in the intensity and position of peak corresponding
to nicotine oxidation. The intensity of the oxidation peak was lower on the GCE-SDS/AMS that on the
bare GCE. In contrast, the onset and peak potentials were significantly shifted towards less positive values on the
GCE-SDS/AMS comparing with the bare GCE. On the other hand, the nicotine peak intensity increased gradually
as the accumulation time increased. Therefore, selecting the appropriate accumulation time the sensitivity of the
GCE-SDS/AMS can be improved. The above results demonstrate the possibility of use the synthesized SDS/AMS
in the nicotine electrooxidation process.
Кључне речи:
Electrochemical behaviour of nicotine / Elctrode coating / Sodium dodecyl sulfate / ClayИзвор:
Scientific research abstracts - XVI International Clay Conference, Granada, Spain, 17-21.07.2017, Granada, Spain,, 2017, 7, 562-562Издавач:
- Sociedad Española de Arcillas - SEA
Финансирање / пројекти:
- Наноструктурни функционални и композитни материјали у каталитичким и сорпционим процесима (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45001)
Институција/група
IHTMTY - CONF AU - Mudrinić, Tihana AU - Mojović, Zorica AU - Milutinović Nikolić, Aleksandra AU - Jović-Jovičić, Nataša AU - Banković, Predrag AU - Marinović, Sanja AU - Jovanović, Dušan PY - 2017 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6354 AB - In this study, electrode coating based on sodium dodecyl sulfate (SDS) bound to smectite clay was synthesized and characterized. In order to enable SDS bonding to clay surface, the acid modification of clay was previously performed at 90 ºC for 2 h. The acid modification changed surface charge of smectite into positive, thus enabling electrostatic interaction with negative sulfate ions from SDS. The presence of SDS in SDS/acid modified smectite (SDS/AMS) structure was confirmed by elemental analysis. SEM analysis revealed the morphology of the obtained sample. Glassy carbon electrode (GCE) was modified with a suspension of the synthesized SDS/AMS and Nafion® solution (GCE-SDS/AMS) and a uniform film was obtained [1]. The electrochemical behaviour of nicotine was tested with modified GCE using cyclic voltammetry. It has been shown previously that the electrochemical response of nicotine on carbon based electrodes can be improved by adding SDS into electrolyte solution [2]. On the other hand, clays have the ability to preconcentrate analytes because of their porous structure and the presence of potential active sites [3]. Acid activated clays can be modified with SDS [4]. Therefore, the aim of this study was to investigate the influence of SDS bound to smectite on the electrochemical behaviour of nicotine. Britton-Robinson (BR) (0.1 M) supporting electrolyte buffer solutions in the pH range from 2.0-10.0 was used for preparing the supporting electrolyte of nicotine. The influence of the pH of the supporting electrolyte, scan rate and accumulation time were investigated and discussed. The GCE-SDS/AMS exhibited similar electrochemical behaviour in comparison with the bare GCE but with the differences in the intensity and position of peak corresponding to nicotine oxidation. The intensity of the oxidation peak was lower on the GCE-SDS/AMS that on the bare GCE. In contrast, the onset and peak potentials were significantly shifted towards less positive values on the GCE-SDS/AMS comparing with the bare GCE. On the other hand, the nicotine peak intensity increased gradually as the accumulation time increased. Therefore, selecting the appropriate accumulation time the sensitivity of the GCE-SDS/AMS can be improved. The above results demonstrate the possibility of use the synthesized SDS/AMS in the nicotine electrooxidation process. PB - Sociedad Española de Arcillas - SEA C3 - Scientific research abstracts - XVI International Clay Conference, Granada, Spain, 17-21.07.2017, Granada, Spain, T1 - Influence of clay-bound sodium-dodecyl sulfate on electrochemical behaviour of nicotine VL - 7 SP - 562 EP - 562 UR - https://hdl.handle.net/21.15107/rcub_cer_6354 ER -
@conference{ author = "Mudrinić, Tihana and Mojović, Zorica and Milutinović Nikolić, Aleksandra and Jović-Jovičić, Nataša and Banković, Predrag and Marinović, Sanja and Jovanović, Dušan", year = "2017", abstract = "In this study, electrode coating based on sodium dodecyl sulfate (SDS) bound to smectite clay was synthesized and characterized. In order to enable SDS bonding to clay surface, the acid modification of clay was previously performed at 90 ºC for 2 h. The acid modification changed surface charge of smectite into positive, thus enabling electrostatic interaction with negative sulfate ions from SDS. The presence of SDS in SDS/acid modified smectite (SDS/AMS) structure was confirmed by elemental analysis. SEM analysis revealed the morphology of the obtained sample. Glassy carbon electrode (GCE) was modified with a suspension of the synthesized SDS/AMS and Nafion® solution (GCE-SDS/AMS) and a uniform film was obtained [1]. The electrochemical behaviour of nicotine was tested with modified GCE using cyclic voltammetry. It has been shown previously that the electrochemical response of nicotine on carbon based electrodes can be improved by adding SDS into electrolyte solution [2]. On the other hand, clays have the ability to preconcentrate analytes because of their porous structure and the presence of potential active sites [3]. Acid activated clays can be modified with SDS [4]. Therefore, the aim of this study was to investigate the influence of SDS bound to smectite on the electrochemical behaviour of nicotine. Britton-Robinson (BR) (0.1 M) supporting electrolyte buffer solutions in the pH range from 2.0-10.0 was used for preparing the supporting electrolyte of nicotine. The influence of the pH of the supporting electrolyte, scan rate and accumulation time were investigated and discussed. The GCE-SDS/AMS exhibited similar electrochemical behaviour in comparison with the bare GCE but with the differences in the intensity and position of peak corresponding to nicotine oxidation. The intensity of the oxidation peak was lower on the GCE-SDS/AMS that on the bare GCE. In contrast, the onset and peak potentials were significantly shifted towards less positive values on the GCE-SDS/AMS comparing with the bare GCE. On the other hand, the nicotine peak intensity increased gradually as the accumulation time increased. Therefore, selecting the appropriate accumulation time the sensitivity of the GCE-SDS/AMS can be improved. The above results demonstrate the possibility of use the synthesized SDS/AMS in the nicotine electrooxidation process.", publisher = "Sociedad Española de Arcillas - SEA", journal = "Scientific research abstracts - XVI International Clay Conference, Granada, Spain, 17-21.07.2017, Granada, Spain,", title = "Influence of clay-bound sodium-dodecyl sulfate on electrochemical behaviour of nicotine", volume = "7", pages = "562-562", url = "https://hdl.handle.net/21.15107/rcub_cer_6354" }
Mudrinić, T., Mojović, Z., Milutinović Nikolić, A., Jović-Jovičić, N., Banković, P., Marinović, S.,& Jovanović, D.. (2017). Influence of clay-bound sodium-dodecyl sulfate on electrochemical behaviour of nicotine. in Scientific research abstracts - XVI International Clay Conference, Granada, Spain, 17-21.07.2017, Granada, Spain, Sociedad Española de Arcillas - SEA., 7, 562-562. https://hdl.handle.net/21.15107/rcub_cer_6354
Mudrinić T, Mojović Z, Milutinović Nikolić A, Jović-Jovičić N, Banković P, Marinović S, Jovanović D. Influence of clay-bound sodium-dodecyl sulfate on electrochemical behaviour of nicotine. in Scientific research abstracts - XVI International Clay Conference, Granada, Spain, 17-21.07.2017, Granada, Spain,. 2017;7:562-562. https://hdl.handle.net/21.15107/rcub_cer_6354 .
Mudrinić, Tihana, Mojović, Zorica, Milutinović Nikolić, Aleksandra, Jović-Jovičić, Nataša, Banković, Predrag, Marinović, Sanja, Jovanović, Dušan, "Influence of clay-bound sodium-dodecyl sulfate on electrochemical behaviour of nicotine" in Scientific research abstracts - XVI International Clay Conference, Granada, Spain, 17-21.07.2017, Granada, Spain,, 7 (2017):562-562, https://hdl.handle.net/21.15107/rcub_cer_6354 .