“…Acetamiprid peaks at 620 and 517 nm are associated with the n → π* transitions taking place in acetamiprid structure. The λ max of acetamiprid is eliminated following adsorption at the presence of the adsorbent because of perfect omission in the solution 6 . Figure 4 The UV spectrum of acetamiprid adsorption on graphene oxide, multi-walled nanotubes, and graphite.…”
Section: Resultsmentioning
confidence: 99%
“…In fact, the nitro group fixation in a cis configuration for different neonicotinoid types has yielded compounds with certain biologic functions and behaviors, supporting their potential efficiency to elucidate the pharmacology and characteristics of the neonicotinoid binding sites. Neonicotinoids consist of 5-membered ring derivatives, including imidacloprid and thiacloprid, 6-membered ring compounds, including thiamethoxam, and also noncyclic structures such as nitenpyram, acetamiprid 6 – 11 , clothianidin, and dinotefuran employed for a wide range of pests 12 – 14 . Organophosphates are becoming more and more common as pesticides across the world and have recently replaced organochlorine insecticide 15 .…”
Acetamiprid removal was investigated by synthesized Graphene oxide, multiwall nanotube and graphite from an aqueous solution. For this propose, FT-IR, XRD, UV–Vis, SEM and EDS were used to characterize the synthesized nano adsorbents and to determine the removal process. A novel PVC membrane electrode as selective electrode made for determining the concentration of acetamiprid. Batch adsorption studies were conducted to investigate the effect of temperature, initial acetamiprid concentration, adsorbent type and contact time as important adsorption parameters. The maximum equilibrium time was found to be 15 min for graphene oxide. The kinetics studies showed that the adsorption of acetamiprid followed the pseudo-second-order kinetics mechnism. All the adsorption equilibrium data were well fitted to the Langmuir isotherm model and maximum monolayer adsorption capacity 99 percent. Docking data of adsorption have resulted in the same as experimental data in good manner and confirmed the adsorption process.
“…Acetamiprid peaks at 620 and 517 nm are associated with the n → π* transitions taking place in acetamiprid structure. The λ max of acetamiprid is eliminated following adsorption at the presence of the adsorbent because of perfect omission in the solution 6 . Figure 4 The UV spectrum of acetamiprid adsorption on graphene oxide, multi-walled nanotubes, and graphite.…”
Section: Resultsmentioning
confidence: 99%
“…In fact, the nitro group fixation in a cis configuration for different neonicotinoid types has yielded compounds with certain biologic functions and behaviors, supporting their potential efficiency to elucidate the pharmacology and characteristics of the neonicotinoid binding sites. Neonicotinoids consist of 5-membered ring derivatives, including imidacloprid and thiacloprid, 6-membered ring compounds, including thiamethoxam, and also noncyclic structures such as nitenpyram, acetamiprid 6 – 11 , clothianidin, and dinotefuran employed for a wide range of pests 12 – 14 . Organophosphates are becoming more and more common as pesticides across the world and have recently replaced organochlorine insecticide 15 .…”
Acetamiprid removal was investigated by synthesized Graphene oxide, multiwall nanotube and graphite from an aqueous solution. For this propose, FT-IR, XRD, UV–Vis, SEM and EDS were used to characterize the synthesized nano adsorbents and to determine the removal process. A novel PVC membrane electrode as selective electrode made for determining the concentration of acetamiprid. Batch adsorption studies were conducted to investigate the effect of temperature, initial acetamiprid concentration, adsorbent type and contact time as important adsorption parameters. The maximum equilibrium time was found to be 15 min for graphene oxide. The kinetics studies showed that the adsorption of acetamiprid followed the pseudo-second-order kinetics mechnism. All the adsorption equilibrium data were well fitted to the Langmuir isotherm model and maximum monolayer adsorption capacity 99 percent. Docking data of adsorption have resulted in the same as experimental data in good manner and confirmed the adsorption process.
“… 8 , 10 , 14 , 19 Compared to GC-MS, nanomaterial based gas sensors are one of the most preferable sensors due to their simple structure, rapid response, high sensitivity and low cost. 19 − 23 Many two-dimensional (2D) materials have been investigated substantially for VOC detection 8 , 24 including graphene, silicene, phosphorene, transition metal dichalcogenides (TMDs), and transition metal oxides (TMOs). 25 − 29 Nagarajan et al have analyzed VOCs in exhaled breath for lung cancer detection using a silicane nanosheet based sensor.…”
Section: Introductionmentioning
confidence: 99%
“…There are several major technologies in VOC detection, including gas chromatography–mass spectrometry (GCMS) and chemo-resistive devices, as well as sensor-based diagnosis . Recognized as the gold standard, GC-MS has been widely used in clinical trials in breath VOC detection. , However, it is time-consuming and requires bulky, expensive equipment and highly trained professionals. ,,, Compared to GC-MS, nanomaterial based gas sensors are one of the most preferable sensors due to their simple structure, rapid response, high sensitivity and low cost. − Many two-dimensional (2D) materials have been investigated substantially for VOC detection , including graphene, silicene, phosphorene, transition metal dichalcogenides (TMDs), and transition metal oxides (TMOs). − Nagarajan et al have analyzed VOCs in exhaled breath for lung cancer detection using a silicane nanosheet based sensor . Using a germanane nanosheet as a VOC biosensor to detect the presence of liver disease was also reported .…”
A rapid and noninvasive way to monitor
the spread of COVID-19 is
the detection of SARS-CoV-2 biomarkers from exhaled breath. Heptanal
was identified as a key biomarker which was significantly elevated
in the breath of SARS-CoV-2 patients. In this study, the adsorption
behaviors of heptanal on pristine and transition metal (Pd, Pt, and
Ag) doped graphene were studied based on density functional theory.
The results indicated that heptanal was weakly adsorbed on pristine
graphene with an adsorption energy of −0.015 eV while it was
strongly adsorbed on Pd-, Pt-, and Ag-doped graphene with adsorption
energies of −0.404, – 0.356, and −0.755 eV, respectively.
Also, the electronic properties of Pd-, Pt-, and Ag-doped graphene
changed more dramatically after heptanal adsorption than pristine
graphene. The recovery times were estimated to be 6.13 × 10
–6
, 9.57 × 10
–7
, and 4.83 s for
Pd-, Pt-, and Ag-doped graphene, respectively, showing that Pd-, Pt-,
and Ag-doped graphene are suitable as reversible sensors. Our results
conclude that Pd-, Pt-, and Ag-doped graphene are potential candidates
as gas sensors for heptanal detection, and Ag-doped graphene is the
most promising one.
“…12 The degradation products of NNIs may pose a threat of their own 13 regarding their environmental fate; therefore, remediation procedures that are based on physical processes are given special attention. The adsorption of NNIs was investigated on different materials such as activated carbon synthesized from tangerine peels, 14 functionalized carbon nanocones, 15 carbon monoliths 16 and a wide range of MCM and Y porous adsorbents. 17 In order to solve several emerging problems, Semyonov et al proposed recycling polyethylene terephthalate as a support for metal–organic framework growth and subsequent imidacloprid removal in a fixed-bed system.…”
Ecotoxicity caused by neonicotinoid pesticides is largely due to oxidative stress on non-target species. Due to the fact that reactive radical species reach the environment, materials intended for pesticide removal...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
