A sensitive electrochemical sensor for nitenpyram detection based on CeO2/MWCNTs nanocomposite

Determination of neonicotinoid pesticides nitenpyram and dinotefuran by electroanalytical methods

“…A voltammetric study of NIT was carried out by Wang et al [69] using HCNT/CNH/GCE with CV and DPV. The variation of the reduction peak of NIT with scan rate by CV indicated a diffusion-controlled process.…”

“…As a result of the NIT values [64][65][66][67][68][69][70][71] given in Table 1, the amperometry method using copper nanoparticles functionalized nitrogen-doped graphene nanocomposites modified GCE (Cu NPs/N-G/GCE) developed by Dong et al [66] presented the widest linear range. However, the lowest LOD among all NIT studies with a linearity range close to that of Dong et al [66] was obtained by Ammasai [71] using DPV with carbon quantum dots, silver nanoparticles, and sodium dodecyl sulfate modified GCE.…”

Sensitive Cr3+ sensor based on novel poly(luminol-co-1,8-diaminonaphthalene)/CeO2/MWCNTs nanocomposites

“…44,45 The combination of CeO 2 NPs and MWCNTs in sensors has been reported in several studies. 29,[46][47][48][49][50][51] N. Dogra et al developed a chemiresistive sensor for detecting ammonia vapor at room temperature using CeO 2 /MWCNTs composites. The resistance of the sensor increased in the presence of ammonia vapor, and the fabricated sensor had a response time of 35 s, a relatively short recovery time of approximately 100 s, high sensitivity to ammonia, and stable and reproducible characteristics over a broad range of humidity levels.…”

“…The jelly-based device exhibited faster response and recovery times (22.9/345.2 s) in compared to the stretchable device. 48 Furthermore, the two nano-structured CeO 2 /MWCNTs were successfully explored and constructed as an electrochemical sensor for neonicotinoid insecticides (nitenpyram) with a low detection limit of 0.72 mM, 49 acetaldehyde (LOD = 7.4 nM), 50 dopamine (LOD = 0.03 mM), 51 and Hg 2+ , Pb 2+ , and Cu 2+ heavy metals with LOD of 1.98, 1.10 and 3.53 mg L −1 , respectively. 29 As the importance of the above individual components emerged, this study investigates a sensor probe to detect Cr 3+ ions through electrochemical means using a novel copolymer of luminol and 1,8-diaminonaphthalene.…”

Sonochemical synthesis and electrochemical performance of reduced graphene oxide/cerium dioxide nanocomposites

“…[7][8][9][10] However, it cannot be used as an electrode material alone because of its poor electrical conductivity, low cycle stability, and small specific surface area. [11][12][13][14][15][16] Among carbon-based materials, graphene is considered to be a promising material because of its good chemical and thermal stability, excellent conductivity, and high specific surface area. Therefore, dispersing CeO 2 nanoparticles on graphene might be an important solution for promoting the electrochemical performance of CeO 2 .…”