Facile synthesis of graphene oxide–silver nanocomposite and its modified electrode for enhanced electrochemical detection of nitrite ions

Ikhsan, Nurul Izrini; Rameshkumar, Perumal; Pandikumar, Alagarsamy; Shahid, Muhammad; Huang, Nay Ming; Kumar, Swadi Vijay; Lim, Hong Ngee

doi:10.1016/j.talanta.2015.07.050

Cited by 105 publications

(31 citation statements)

References 59 publications

(51 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AgNPs and GO composites are the most widely used in the detection of nitrate and nitrite in water. Ikhsan et al prepared GO-Ag nanocomposites through deposited AgNPs on GO thin films by used garlic extracts and sunlight [74] and the nanocomposites modified GCEs (GCE) as electrochemical sensors for the detection of nitrite ions. At the voltage of 0.94V and a pH of 7.2, linear sweep voltammetry (LSV) and Amperometry i-t curves were used for the detection of nitrite by the GO-Ag/GCE.…”

Section: Metalsmentioning

confidence: 99%

Application of Graphene-Based Materials for Detection of Nitrate and Nitrite in Water—A Review

Wang

et al. 2019

Sensors

View full text Add to dashboard Cite

Nitrite and nitrate are widely found in various water environments but the potential toxicity of nitrite and nitrate poses a great threat to human health. Recently, many methods have been developed to detect nitrate and nitrite in water. One of them is to use graphene-based materials. Graphene is a two-dimensional carbon nano-material with sp 2 hybrid orbital, which has a large surface area and excellent conductivity and electron transfer ability. It is widely used for modifying electrodes for electrochemical sensors. Graphene based electrochemical sensors have the advantages of being low cost, effective and efficient for nitrite and nitrate detection. This paper reviews the application of graphene-based nanomaterials for electrochemical detection of nitrate and nitrite in water. The properties and advantages of the electrodes were modified by graphene, graphene oxide and reduced graphene oxide nanocomposite in the development of nitrite sensors are discussed in detail. Based on the review, the paper summarizes the working conditions and performance of different sensors, including working potential, pH, detection range, detection limit, sensitivity, reproducibility, repeatability and long-term stability. Furthermore, the challenges and suggestions for future research on the application of graphene-based nanocomposite electrochemical sensors for nitrite detection are also highlighted.Sensors 2020, 20, 54 2 of 35 deaths. Nitrite in drinking water can irreversibly convert hemoglobin into methemoglobin, which results in a decrease in oxygen carrying capacity in the blood [5]. It can react with secondary amines to produce n-nitrosamines, which are likely to lead to gastric cancer [6]. Since nitrate is converted into nitrite in the digestive tract, it also very harmful to the human body [7]. It can also lead to the unnatural reproduction of aquatic plants and algae, leading to "red tides" and the death of fish [8,9]. The United States (U.S.) Environmental Protection Agency has limited the nitrite and nitrate content in drinking water to 1 mg/L and 10 mg/L [10] and other countries have made similar regulations. The concentration of nitrate and nitrite in water has become one of the indexes for evaluating water quality. Therefore, the detection of nitrate and nitrite in water samples at low concentrations has been the focus of research [11].So far, many methods have been used to detect nitrate and nitrite, such as spectrophotometry [12][13][14], chemiluminescence [15,16], chromatography [17], fluorescence [18,19] and electrochemical methods [20][21][22]. Among them, the electrochemical method is one of the most commonly used detection methods because of its advantages of being low cost, fast, direct and high efficiency [23]. However, the sensitivity and accuracy of the electrodes are reduced because of disturbance by other substances. Bare electrodes need higher applied potential, which limits the application of bare electrodes [24]. Therefore, electrochemical techniques based on modified electrodes have been extensively...

show abstract

Section: Metalsmentioning

confidence: 99%

Application of Graphene-Based Materials for Detection of Nitrate and Nitrite in Water—A Review

Wang

et al. 2019

Sensors

View full text Add to dashboard Cite

show abstract

“…For GO‐Ag, the characteristic peak of GO at 2θ = 10.5° still existed but its intensity was significantly reduced. It is because GO crystal face is likely masked by the facile formation of AgNPs . In addition, the GO‐Ag displayed additional diffraction peaks at 2θ = 38.3°, 44.2°, 64.6°, and 77.5°, which were assigned to the (111), (200), (220), and (311) crystalline planes of face‐centered cubic silver (JCPDS file no.…”

Section: Resultsmentioning

confidence: 99%

Synergistic effect of graphene oxide‐silver nanofillers on engineering performances of polyelectrolyte complex nanofiber membranes

Cai

Zeng

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

The poor mechanical and antibacterial performance has become a big hurdle for extending the application of polyelectrolyte complex (PEC) nanofibers in various fields. In this study, chitosan/gelatin (CG) composite nanofiber system was used for portraying the synergistic enhancement of mechanical and antibacterial properties of PEC nanofiber membranes by inclusion of graphene oxide‐silver (GO‐Ag) nanofillers. In particular, the introduction of 1.5 wt % GO‐Ag has raised the elastic modulus and tensile strength of CG nanofiber membrane by 105% and 488%, respectively, which are partially attributed to the alleviated restacking of graphene sheets by the anchored AgNPs. Meanwhile, the diameters of inhibition zone against Escherichia coli and Staphylococcus aureus on LB‐agar plates induced by GO‐Ag/CG nanofiber membranes are increased by 80.5% and 50.1%, respectively, compared to that by CG membrane. The synergistic improvement of antimicrobial performance of GO‐Ag/CG may be related to the accumulation of microorganisms induced by GO. In summary, the incorporation of GO‐Ag composite nanofillers has emerged as an effective strategy for engineering PEC nanofiber membranes for potential applications in nanomedicine and tissue engineering. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46238.

show abstract

“…For example, Nur-ulIzriniIkhsan et al found that nitrite ions can be detected in sewage by AgNP membrane. 78 They successfully synthesized a GO-AgNP membrane to detect nitrite in water, as shown in Table 2. Moreover, GO-AgNPs were found to adsorb organic dyes in sewage; Jeyapragasam et al 79 reported that GO-AgNP membrane can adsorb eosin and yellow dyes in waste water.…”

Section: Graphene-based/silver Nanoparticle (Agnp) Membranementioning

confidence: 99%

Recent developments in graphene-based/nanometal composite filter membranes

Cheng¹,

Huang²,

Wang³

et al. 2017

RSC Adv.

View full text Add to dashboard Cite

show abstract

Facile synthesis of graphene oxide–silver nanocomposite and its modified electrode for enhanced electrochemical detection of nitrite ions

Cited by 105 publications

References 59 publications

Application of Graphene-Based Materials for Detection of Nitrate and Nitrite in Water—A Review

Application of Graphene-Based Materials for Detection of Nitrate and Nitrite in Water—A Review

Synergistic effect of graphene oxide‐silver nanofillers on engineering performances of polyelectrolyte complex nanofiber membranes

Recent developments in graphene-based/nanometal composite filter membranes

Contact Info

Product

Resources

About