Determination of Sulfide by Hematoxylin Multiwalled Carbon Nanotubes Modified Carbon Paste Electrode

Vu, Dai Long; Červenka, Libor

doi:10.1002/elan.201300134

Cited by 14 publications

(4 citation statements)

References 39 publications

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“…According to curve b of Figure 8, the oxidation of sulfide at the 3DIGF/PMTC‐modified ITO electrode began at ∼−0.4 V (vs. Ag/AgCl) and was followed by a peak at a potential of ∼−0.24 V (vs. Ag/AgCl). The 3DIGF/PMTC electrocatalyst has a very high electrooxidation peak current density of ∼500 μA/cm 2 , which is much higher than most of the previously reported electrochemical sulfide oxidation electrocatalysts [38,93–106] . 3DIGF/PMTC could be an excellent candidate for developing a sensitive and selective sulfide sensor in aqueous solutions.…”

Section: Resultsmentioning

confidence: 79%

Preparation of Highly Stable and Electrochemically Active Three‐dimensional Interconnected Graphene Frameworks from Jute Sticks

Shah

Yang

Ashraf

et al. 2022

Chemistry An Asian Journal

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Over the past few years, the environmentally friendly synthesis of nanomaterials, including graphene using green chemistry, has attracted tremendous attention due to its easy handling, low cost, and biocompatibility. Here we demonstrate a facile and efficient green synthesis route for producing highly stable and electrochemically active threedimensional interconnected graphene frameworks (3DIGF) from jute sticks. Initially, jute sticks derived three-dimensional amorphous activated carbon nanosheets (3DAACNs) were prepared at low temperatures (i. e., 850 °C) in an inert environment. The resultant 3DAACNs were then heat treated at a high temperature (i. e., 2700 °C) under an inert environment, resulting in 3DIGF. The prepared carbonaceous materials were fully characterized, and various experimental techniques confirmed the preparation of 3DIGF. The prepared 3DIGF shows a highly stable nature in thermal and chemical environments and demonstrates a highly dynamic nature for the electrooxidation of sulfide. This study could be considered a vital contribution towards the economic and simple approach for preparing 3DIGF from biomass.

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Section: Resultsmentioning

confidence: 79%

Preparation of Highly Stable and Electrochemically Active Three‐dimensional Interconnected Graphene Frameworks from Jute Sticks

Shah

Yang

Ashraf

et al. 2022

Chemistry An Asian Journal

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“…Fig. 7A depicts the CV response of PLL-modified electrode in various pH solutions (3)(4)(5)(6)(7)(8)(9)(10)(11) containing 2 mM sulfide at 50 mV s −1 . It is worthy to mention that the oxidation peak current of sulfide ion was decreased upon increasing or decreasing the pH = 7.…”

Section: Resultsmentioning

confidence: 99%

“…4,5 However, the high concentration level of sulfide can lead to serious disorders such as personal distress, unconsciousness, irritation of mucous membranes, permanent brain damage or even death. 2,[6][7][8] Therefore, the accurate and low level detection of sulfide is much important for both an environmental and human health. Thus, we have developed a simple and cost effective electrochemical sensor for the determination of sulfide ions in water samples.…”

mentioning

confidence: 99%

Charge Based Electrochemical Determination of Sulfide Ions in Water Samples Using Poly-L-Lysine Modified Electrode

Kubendhiran

Rajkumar

Chen

et al. 2018

J. Electrochem. Soc.

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The sulfide ions are easily found in real water and waste water samples, whilst it can lead to personal distress owing to their toxic effects on aquatic life. Thus, the determination of sulfide ion S 2− in environmental samples is much important for human health. Hence, we developed an electrochemical sensor for charge based electrochemical determination of sulfide ions in water samples using poly-Llysine modified electrode. The sulfide ions can oxidize on the PLL-film by taking an advantage of charge based concentration of sulfide ions. The PLL-modified electrode was characterized by scanning electron microscope, Fourier transform infrared spectroscopy, and energy-dispersive X-ray spectroscopy. The PLL modified electrode exhibits excellent electrocatalytic activity towards the detection of sulfide ions. In addition, the LSV performance of PLL modified electrode offers a lower detection potential, higher sensitivity and fast response towards the detection of sulfide ions. The linear concentration for sulfide ions determination ranges from 11.8-6663 μM with a detection limit of 2.65 μM was observed. The proposed sensor offers high selectivity in presence of various anions and cations. Besides, the PLL-modified electrode exhibits good recovery results for the detection of sulfide ions in different water samples.

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“…Long et al. investigated a new approach for the amperometric determination of sulfide that uses a hematoxylin MWCNT‐modified carbon‐paste electrode (CPE@HM‐MWCNTs) [62] . Results indicated that the CPE@HM‐MWCNTs substantially improve the electrocatalytic activity for sulfide oxidation.…”

Section: Sulfide Sensing Strategies In Controlled Potential Techniquesmentioning

confidence: 99%

Controlled‐Potential‐Based Electrochemical Sulfide Sensors: A Review

Shah

Aziz

Oyama

et al. 2020

The Chemical Record

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Due to their potential applications in industry and potent toxicity to the environment, sulfides and their detection have attracted the attention of researchers. To date, a large number of controlled‐potential techniques for electrochemical sulfide sensors have been developed, thanks to their simplicity, reasonable limit of detection (LOD), and good selectivity. Different researchers have applied different strategies for developing selective and sensitive sulfide sensors. However, there has been no systematic review on controlled‐potential techniques for sulfide sensing. In light of this absence, the main aim of this review article is to summarize various strategies for detecting sulfide in different media. The efficiencies of the developed sulfide sensors for detecting sulfide in its various forms are determined, and the essential parameters, including sensing strategies, working electrodes, detection media, pH, LOD, sensitivity, and linear detection range, are emphasized in particular. Future research in this area is also recommended. It is expected that this review will act as a basis for further research on the fabrication of sulfide sensors for practical applications.

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Determination of Sulfide by Hematoxylin Multiwalled Carbon Nanotubes Modified Carbon Paste Electrode

Cited by 14 publications

References 39 publications

Preparation of Highly Stable and Electrochemically Active Three‐dimensional Interconnected Graphene Frameworks from Jute Sticks

Preparation of Highly Stable and Electrochemically Active Three‐dimensional Interconnected Graphene Frameworks from Jute Sticks

Charge Based Electrochemical Determination of Sulfide Ions in Water Samples Using Poly-L-Lysine Modified Electrode

Controlled‐Potential‐Based Electrochemical Sulfide Sensors: A Review

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