Synthesis of crystalline silver nanoplates and their application for detection of nitrite in foods

Wang, Zhoufeng; Liao, Fang; Guo, Tingting; Yang, Siwei; Zeng, Chong

doi:10.1016/j.jelechem.2011.11.006

Cited by 82 publications

(21 citation statements)

References 42 publications

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“…Although some reported ionic liquid-modified electrodes exhibit lower LODs [20,22,26], it should be noted that their preparation procedure and required materials are significantly more complex compared to the sensor preparation protocol proposed herein. In terms of silver or silver-modified electrodes, the one demonstrated in this work is at least comparable [25], if not significantly better compared to those found in the literature [23,24,27,39,40] considering the linear concentration range and/or LOD.…”

Section: Resultssupporting

confidence: 68%

“…Although these techniques offer precise measurements and relatively low detection limits, they usually require more complex sample preparation and fairly expensive instrumentation compared to their electrochemical counterparts. Electrochemically, nitrite has mainly been determined using amperometry [16][17][18][19][20], cyclic voltammetry [21][22][23][24][25], and differential pulse voltammetry [26,27]. Both oxidation and reduction reactions have been exploited for nitrite detection using different electrode materials/modifications.…”

Section: Introductionmentioning

confidence: 99%

“…in the form of silver nanoparticles on mercaptopropyltriethoxysilane coated on GCE [24] or silver nanoplates grafted on GCE through carboxymethylcellulose [25]. Silver composites have also been used, e.g.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Silver particle-decorated carbon paste electrode based on ionic liquid for improved determination of nitrite

Menart

Jovanovski

Hočevar

2015

Electrochemistry Communications

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Section: Resultssupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Silver particle-decorated carbon paste electrode based on ionic liquid for improved determination of nitrite

Menart

Jovanovski

Hočevar

2015

Electrochemistry Communications

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“…Variety of electrochemical sensing materials including Au-multiwalled carbon nanotube nanocomposite [34], graphene-Pd nanocomposite [35], Polyethylenimine-bridged graphene oxide-Au film [36], copper oxide-graphite composite [37], ferricyanide-poly(diallyldimethylammonium)-alginate composite film [38], electropolymerized film of functionalized thiadiazole [39], and thionine modified aligned carbon nanotubes [40] were previously developed for the detection of nitrite ions. Furthermore, Ag NPs based electrochemical sensors have been successfully employed for the detection of nitrite ions [33,41,42] because Ag is highly conductive and cheapest one over the other metals like Au, Pd and Pt. Though the electrochemical detection of nitrite can be executed through both by oxidation and reduction, the oxidation of nitrite makes many advantages like no interference from nitrate ions and dissolved molecular oxygen [43,44].…”

Section: Introductionmentioning

confidence: 99%

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

Ikhsan

Rameshkumar

Pandikumar

et al. 2015

Talanta

105

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“…nanostructure in previous reports [17]. In this study, the Ag NPs were high-yield synthesized by mixing oPD and microemulsion which was composed of n-hexane, ethyl alcohol and distilled water.…”

Section: Introductionmentioning

confidence: 92%

Single Metal of Silver Nanoparticles in the Microemulsion for Recyclable Catalysis of 4-Nitrophenol Reduction

Zhao¹,

Duan²,

Xiao³

et al. 2017

JAN

Self Cite

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Abstract. Size control of silver nanoparticles (Ag NPs) to improve monodispersity and recyclability is crucial for application in nanocatalysts. Hence, a novel and effective protocol for in-situ synthesis of Ag NPs in the microemulsion was proposed. The surfactant-stabilized microcavity in microemulsion can provide a nanoscale reactor that limits nucleation, growth, and agglomeration of the particles. Ag NPs of 540-640 nm were successfully grown and exhibited excellent catalytic activity with the apparent rate constant (k) of 0.59 min -1 and the activation energy (Ea) of 23.03 kJ mol -1 toward the reduction of 4-nitrophenol. Moreover, the catalyst could be easily recycled and showed excellent reusability after 6 cycles. So, the silver nanoparticles can be extended to an important metalcatalyzed reduction in chemical industry, which is of great significance for the sustainable development.Keywords: Silver nanoparticles, microemulsion, 4-NP, catalytic [22]. Especially, microemulsion synthesis has been demonstrated to be a very promising method due to its precise control on morphology and dimension of nanoparticles [22]. From the viewpoints of colloid and interface chemistry, there are two types of microemulsions, reversed (water/oil) and direct (oil/water) microemulsion [23][24][25]. These systems are transparent, isotropic liquid media composed of discrete, thermodynamically stable [20]. The surfactant-stabilized microcavity in microemulsion can provide a nanoscale reactor that limits nucleation, growth, and agglomeration of the particles [22]. Accordingly, we could use this method to get Ag NPs with a controlled dimension. IntroductionAs we all know that 4-nitrophenol (4-NP) shows one of the most notorious toxic pollutants in the industrial effluents [26]. 4-aminophenol (4-AP) is very useful and important in many applications including analgesic and antipyretic drugs, photographic development, corrosion inhibition, anticorrosion lubrication, hair-dyeing agent etc [27]. Therefore enormous current interests have arisen in the development of catalysts for reduction of the 4-NP to 4-AP [28][29][30]. Traditional methods for this process usually involve reduction/catalytic hydrogenation [31][32][33][34][35]. Considering these aspects, sizecontrolled synthesis of Ag NPs for 4-NP transformations in a simple, cost-effective, and selective manner is highly demanding [26].We herein report our new efforts to synthesize Ag nanoparticles by the microemulsion method. Through our research, most of catalysts were alloy or compound of silver nanoparticles traditionally. A single metal of Ag NPs were manufactured in our work through a simple and fast method. In this system, o-phenylenediamine (oPD) was used as a weak reductive agent, who has been employed to produce silver

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Synthesis of crystalline silver nanoplates and their application for detection of nitrite in foods

Cited by 82 publications

References 42 publications

Silver particle-decorated carbon paste electrode based on ionic liquid for improved determination of nitrite

Silver particle-decorated carbon paste electrode based on ionic liquid for improved determination of nitrite

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

Single Metal of Silver Nanoparticles in the Microemulsion for Recyclable Catalysis of 4-Nitrophenol Reduction

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