ORIGINAL_ARTICLE
Electrochemical And Corrosion Behaviors of Commercially Pure Titanium (CP-Ti) In 3.0 Wt.% Nacl Solution Containing a Green Corrosion Inhibitor
The object of this work is to evaluate the inhibitory efficiency of the essential oil of leaves of Pistacia lentiscus (EOPL) on the corrosion of commercially pure titanium (CP-Ti) in a simulated marine environment (3.0 wt. % NaCl). The inhibition effectiveness of this green corrosion inhibitor was investigated using weight loss measurement and potentiodynamic polarization in the presence of different concentrations of EOPL ranging from 0.1 to 2.0 g/L. A complementary vision of this study is obtained by means of surface characterization by scanning electron microscopy (SEM). Adsorption of the inhibitor on the titanium surface obeyed Langmuir’s isotherm. The thermodynamic parameters were determined and discussed. It is found that the activation energy increases with an increase in inhibitor concentration, suggesting physisorption. With increasing EOPL concentration, inhibition increased to 84.58% at 2.0 g/L. Thus, the results obtained from the different techniques used in this work are in very good agreement and revealed that EOPL of Pistacia lentiscus could be used as a source of green corrosion inhibitors on CP-Ti in 3.0 wt. % NaCl solution.
https://www.abechem.com/article_252038_567e54ab52349f253a3b1be10e422637.pdf
2022-04-30
362
373
Corrosion inhibition
Green inhibitor
titanium
Electrochemical measurements
Adsorption isotherm
Abida
Bahloul
abida_bahloul@yahoo.fr
1
Laboratory of Computational Chemistry and Nanostructures, University May 8, 1945, P.O. Box 401 Guelma, 24000, Algeria
LEAD_AUTHOR
Chouarfa
Fella
2
Laboratory of Industrial Analysis and Materials Engineering, University May 8, 1945, P.O. Box 401 Guelma, 24000, Algeria
AUTHOR
Boufas
Samira
3
Laboratory of Industrial Analysis and Materials Engineering, University May 8, 1945, P.O. Box 401 Guelma, 24000, Algeria
AUTHOR
Chelaghmia Mohamed
Mohamed lyamine
4
Laboratory of Industrial Analysis and Materials Engineering, University May 8, 1945, P.O. Box 401 Guelma, 24000, Algeria
AUTHOR
ORIGINAL_ARTICLE
Corrosion Inhibition of Carbon Steel in 1 M HCl using Monopolar Surfactants Derived From 3-Methyl-1,2,4- Triazole-5-Thione
In this work, we have synthesized the surfactant compounds derived from 2-(N-Alkyl-3-methyl-1,2,4-triazolthioyl) acetic acid (MTSACCn; n=10, n=11 and n=12). These compounds have been purified and identified using several spectroscopic methods such as 1H NMR; 13C NMR spectroscopy. The molecular aggregation of MTSACCn has been foxed using tensiometer apparatus. The electrochemical study was carried out using a coupling of potentiodynamic and electrochemical impedance methods. The polarization curves indicate that the MTSACCn act as mixed-type inhibitors of carbon steel in 1M HCl solution. The electrochemical impedance spectroscopy measurements showed that all synthesized compounds act by establishing a barrier layer on the steel surface. Therefore, we noted that the inhibition efficiency increases with increasing of concentrations inhibitors. Also, the MTSACC12 is the best inhibitor, its inhibition efficiency reached a maximum value of 95% at 510-4 M. The adsorption of all surfactants studied follows the Langmuir isotherm.
https://www.abechem.com/article_252039_513e8c0fdac9bace81790382f6adb498.pdf
2022-04-30
374
384
Surfactants
1 M HCl solution
1.2.4-triazole-5-thione
Inhibitor
Carbon Steel
Aithaddou
Bouchaib
bouchaibaithaddou10@gmail.com
1
Laboratory of Materials, electrochemistry and Environment (LMEE), Department of Chemistry, Faculty of Sciences, Ibn Tofail University, BP 133, 14000, Kénitra, Morocco
LEAD_AUTHOR
Said
Elanza
elanza6@gmail.com
2
Laboratory of Organic Synthesis and Process of Extraction, Faculty of Sciences, University Ibn Tofail, Kénitra, Morocco
AUTHOR
Chebabe
Driss
d_chebabe@hotmail.com
3
Laboratory of Natural Substances & Synthesis and Molecular Dynamic, Faculty of Sciences and Techniques, Moulay Ismail University of Meknes, BP 509, Boutalamine, 52000 Errachidia, Morocco
AUTHOR
Oubair
Ahmad
oubair_hmad@yahoo.fr
4
Laboratory of Materials Engineering for the Environment and Natural Ressources, Faculty of Sciences and Techniques, University of Moulay Ismail of Meknès, B.P 509, Boutalamine, 52000, Errachidia, Morocco
AUTHOR
Said
Ibn Ahmed
sibnahmed@yahoo.fr
5
Laboratory of Materials, electrochemistry and Environment (LMEE), Department of Chemistry, Faculty of Sciences, Ibn Tofail University, BP 133, 14000, Kénitra, Morocco
AUTHOR
ORIGINAL_ARTICLE
Electrochemical-Sensor Behavior for Determination of Low Urea Concentration using Graphite-TiO2 Composites Immobilized in a Glass Tube
A high urea compound in human blood is indicated for kidney disease, urinary tract stones, and even bladder tumors. It is necessary to take several preventive measures, starting with detecting the urea compound. This study presents the preparation of a working electrode based on graphite-TiO2 (G/TiO2) composites immobilized into a glass tube for sensing urea compound under an electrochemical system. The G/TiO2 composites were successfully synthesized through a physical mixing method and then immobilized into a glass tube for fabricating a working electrode to sense the urea compound under the cyclic voltammetry (CV) technique. The material characterization results show that the nano-TiO2 powder is composed of irregular polycrystalline and amorphous, revealing a broad pattern with low intensity. However, the effect of amorphous materials on the expansion of the nano-sized XRD TiO2 pattern is negligible. In addition, the morphological analysis of graphite has a very tight layer of flakes with a smooth and uniform surface. At the same time, the G/TiO2 composites are also granule-shaped that attached to the graphite surface, identified to cover part of the graphite surface. Under the electrochemical performance test, the excellent composition of TiO2 modifier is 0.5 g mixed into graphite to sense urea compound by using CV technique under a scan rate of 0.5 V.s-1 with 0.1M K3[Fe(CN)6] (+0.1M NaNO3) electrolyte solution. We obtain a standard deviation of 0.361403514 and a detection limit of 0.005976905 mg.L-1 with RSDr and PRSDr values of 5.51% and 3.13%, respectively. The performance of the electrodes over 25 days showed a significant effect on stability over 10 days.
https://www.abechem.com/article_252040_cdd6f0155294f7650946a1627aa58ed1.pdf
2022-04-30
385
401
sensor
urea
Electrode
material
Diseases
Dwiprayogo
Wibowo
dwiprayogo@umkendari.ac.id
1
Department of Environmental Engineering, Faculty of Engineering, Universitas Muhammadiyah Kendari, Kendari 93117 – Southeast Sulawesi, Indonesia
LEAD_AUTHOR
Wa Ode
Indah Sari
vebby_suchi@yahoo.com
2
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93231 – Southeast Sulawesi, Indonesia
AUTHOR
Anwar
Said
anwar.said@umkendari.ac.id
3
Fishery Products Technology, Faculty of Fisheries and Marine Science, Universitas Muhammadiyah Kendari, Kendari 93117 – Southeast Sulawesi, Indonesia
AUTHOR
Faizal
Mustapa
ichalgowamekong28@gmail.com
4
Doctoral student of Agriculture, Department of Water Resources, Universitas Halu Oleo, Kendari 93231 – Southeast Sulawesi, Indonesia
AUTHOR
Bernadetha
Susianti
bernadetha.susianti@gmail.com
5
PT. Jara Silica, Sugihwaras, Jenu, Tuban 62352, East Java – Indonesia
AUTHOR
Maulidiyah
Maulidiyah
maulid06@yahoo.com
6
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93231 – Southeast Sulawesi, Indonesia
AUTHOR
Muhammad
Nurdin
mnurdin06@yahoo.com
7
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93231 – Southeast Sulawesi, Indonesia
AUTHOR
ORIGINAL_ARTICLE
Simultaneous Determination of Dopamine and Paracetamol using a Gold Electrode Modified with MWCNTs/GO Nanocomposite Capped Au Nanoparticles
In this research project, a sensitive electrochemical sensor was developed for simultaneous voltammetric determination of dopamine (DA) and paracetamol (PA) based on a gold electrode modified with functionalized multi-wall carbon nanotubes/graphene oxide (f-MWCNTs/GO) nanocomposite capped with gold nanoparticles (AuNPs). The modified electrode showed excellent electrocatalytic activity for the oxidation of DA and PA molecules in aqueous solutions with well-separated oxidation peaks for each species. The fabrication process of the proposed sensor was evaluated by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Cyclic voltammetry (CV) and also electrochemical impedance spectroscopy (EIS) were used to investigate the electrochemical properties of f-MWCNTs/GO/AuNPs/AuE. Under the optimized experimental conditions, the calibration curves were linear over the concentration ranges of 1-400 µM with a detection limit of 0.5 and 0.3 µM for DA and PA, respectively. Finally, the constructed electrode was successfully applied for the quantitative measurement of dopamine and paracetamol in pharmaceutical and urine samples.
https://www.abechem.com/article_252041_c280ee56667d438641c2aa35209a9b8a.pdf
2022-04-30
402
417
Dopamine
Paracetamol
Carbon nanotubes
Graphene oxide
Gold nanoparticles
Voltammetry
Simin
Kolahi-Ahari
skolahiahari@gmail.com
1
Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
AUTHOR
Gholam Hossein
Rounaghi
ghrounaghi@yahoo.com
2
Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
LEAD_AUTHOR
Behjat
Deiminiat
behjatdeimi@yahoo.com
3
Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
AUTHOR
ORIGINAL_ARTICLE
Voltammetric Determination of 5-Hydroxyindoleacetic Acid at Poly (p-amino benzene sulfonic acid) Modified Sensor
In this study, the quantitative amount of 5-hydroxyindoleacetic acid (5-HIAA) was determined at poly (p-amino benzene sulfonic acid) (p-ABSA) modified glassy carbon electrode. The redox property of 5-HIAA was investigated by cyclic voltammetry. The cyclic voltammograms showed that the redox reaction of 5-HIAA was irreversible. Scan rate study showed that the redox reaction of 5-HIAA was controlled by both diffusion and adsorption on the poly (p-ABSA) modified sensor. Differential pulse voltammetry technique was used for the quantitative analysis of 5-HIAA in phosphate buffer solution at pH 7.00. The linear working range of the calibration graphs was determined as 1×10-5–9×10-5 M (R2, 0.9912), and the detection limit was determined as 5.3×10-7 M. Recovery values in the analysis of urine samples were between 99.4% and 103.0%. The results showed that the modified sensor can be applied to the determination of 5-HIAA in the presence of ascorbic acid. The proposed sensor is promising for routine analysis due to its high selectivity, reproducibility, long-term stability, and high recovery values in biological samples.
https://www.abechem.com/article_252042_2b90d0b107e47341f8d4d57ad4723a76.pdf
2022-04-30
418
431
5-Hydroxyindolacetic acid
Serotonin
p-Amino benzene sulfonic acid
Differential pulse voltammetry
Cyclic voltammetry
Abidin
Yılmaz
abidinyilmaz4455@gmail.com
1
İnönü University, Faculty of Science, Department of Chemistry, 44280 Malatya, Turkey
AUTHOR
Ebru
Savan
ebru.savan@inonu.edu.tr
2
İnönü University, Faculty of Pharmacy, Department of Basic Pharmaceutical Sciences, Division of Analytical Chemistry, 44280 Malatya, Turkey
LEAD_AUTHOR
Gamze
Erdoğdu
gamze.erdogdu@inonu.edu.tr
3
İnönü University, Faculty of Science, Department of Chemistry, 44280 Malatya, Turkey
AUTHOR
ORIGINAL_ARTICLE
Electrochemical Detection of Uric Acid by using NiO Nanoparticles
High and low-level concentrations of uric acid (UA) lead to several diseases and physiological disorders. A simple method or sensor is required for the detection of UA. In this work, we have prepared a NiO nanoparticles/ carbon paste electrode (NiONPs/CPE) as an electrochemical sensor and applied it for the detection of UA. Electrochemical parameters such as the effect of pH, scan rate, and concentration were studied. The obtained results represent the excellent electrocatalytic activity of NiONPs/CPE with a diffusion-controlled electrode process. The electrocatalytic process was pH-dependent with a slope of 59 mV/pH. Peak current increased linearly with the increases in UA concentrations. The detection limit was found to be 0.1 mm for the linear range from 0.19 mM to 49 mM. The NiONPs/CPE electrodes exhibited good sensitivity for the detection of UA. As a result, this work is expected to be used for the development of a sensor for the detection of UA.
https://www.abechem.com/article_252043_fe3b7c0b24930aee012e801e6a4a1157.pdf
2022-04-30
432
443
Nickel oxide nanoparticles
Uric acid
modified carbon paste electrode
Electrochemical sensor
Gangadhara
Reddy
drkgrsvu@gmail.com
1
Dept. of Chemistry, S.V.U. College of Sciences, Sri Venkateshwara University, Tirupati-517502, Andhra Pradesh, India
AUTHOR
Sathish
Reddy
sathish.reddy@reva.edu.in
2
School of Chemical Science, School of Applied Science, REVA University, Bangalore, 560064, India
LEAD_AUTHOR
B E Kumara
Swamy
kumaraswamy21@gmail.com
3
Department of Industrial Chemistry, Kuvempu University, Shankaraghatta, 577204, Shimoga, India
LEAD_AUTHOR
Mohan
Kumar
mohankumar.mogi@gmail.com
4
Department of Chemistry, PES Institute of Technology and Management, Sagar Road, Guddada Arakere, Kotegangoor-577204, Shivamogga, India
AUTHOR
K. N.
Harish
harishkn23@gmail.com
5
Department of Chemistry, Dayananda Sagar College of Engineering, Shavige Malleshwara Hills, Kumaraswamy Layout, Bengaluru, 560078, India
AUTHOR
C.S.
Naveen
naveencs6@gmail.com
6
Department of Physics, School of Engineering, Presidency University, Bengaluru-560064, India
AUTHOR
G. Ranjith
Kumar
ranjith.k@reva.edu.in
7
Department of Physics, School of Applied Science, REVA University, Bangalore, 560064, India
AUTHOR
T.
Aravinda
aravindachem@gmail.com
8
Department of Chemistry, Nitte Meenakshi Institute of Technology, Bangalore-560064, India
AUTHOR
ORIGINAL_ARTICLE
Errata to “A Novel Potentiometric Sensor for Determination of Tramadol Hydrochloride in Biological Samples” (Vol. 14, No. 2, 191-200)
According to the authors’ request, there is a correction on the authorship of the previously published article: “A Novel Potentiometric Sensor for Determination of Tramadol Hydrochloride in Biological Samples” (Vol. 14, No. 2, 191-200). The name of the co-author “Hossein Tavallali” was missed by the authors in the previous version. This name is now added to the authors’ names. The authors regret that an error occurred in the previous version of their article.
https://www.abechem.com/article_252044_12a3edfc3ccabf8e9c2bc752bdb9d14d.pdf
2022-04-30
444
444
Parvin
Pourhakkak
pourhakkak@yahoo.com
1
Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran
AUTHOR
Mohammad Ali
Karimi
ma_karimi43@yahoo.com
2
Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran
LEAD_AUTHOR
Hossein
Tavallali
tavallali@pnu.ac.ir
3
Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran
AUTHOR
Mohammad
Mazloum Ardakani
mazloum@yazduni.ac.ir
4
Department of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, I.R. Iran
AUTHOR
Pouran
Pourhakkak
p_pourhakkak@pnu.ac.ir
5
Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran
AUTHOR