Experimental and theoretical investigation of acetamiprid adsorption on nano carbons and novel PVC membrane electrode for acetamiprid measurement

Abstract

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.

Integrated Electrochemical Oxidation and Biodegradation for Remediation of a Neonicotinoid Insecticide Pollutant

“…The newly shifted peaks at aromatic stretching 1609.33 cm –1 shifted to 1638.12 cm –1 and CH aliphatic group 1372.58 cm –1 shifted to 1379.61 cm –1 , and the C–N stretching peaks at 1107.04 cm –1 shifted to 1121.43 cm –1 and 999.86 cm –1 shifted to 1007.06 cm –1 . Peaks of aromatic and aliphatic compounds (peaks) 2921.83, 2850.65, 1609.33, 1372.58, and 619.95 cm –1 were highly reduced due to the EO compared to those of the untreated NEOs. ,, The IR spectrum of the CL system showed that the peaks at 2929.36, 2857.34, 1315.62, 1221.78, and 1120.96 cm –1 were highly reduced, which was due to the degradation of the molecules. − …”

“…In EO-treated AC, the IR spectrum showed significantly reduced peaks at 3453.47 cm –1 (N–H stretch), 2929.36, 2864.54 cm –1 (C–H aliphatic stretch), 1630.67 cm –1 (CC aromatic stretch), 1106.55 cm –1 (C–N stretch), and 805.69 cm –1 (aromatic nuclei peak). The new peaks are at 992.13 cm –1 (CC bending) and 619.24 cm –1 (C–Cl stretch). , In TH, C–N stretching (1006.24 cm –1 ) and the CH aliphatic group (1386.78 cm –1 ) completely disappeared; besides, the other aromatic and aliphatic compounds were highly reduced in the EO process. , The observed structural changes were shown and may lead to the disappearance of individual and specific chemical compounds from the solution . In conclusion, the EO treatment method was employed effectively to degrade the NEOs, and the optimum concentration was observed to be 200 ppm for all the NEOs.…”

“…42,58 The observed structural changes were shown and may lead to the disappearance of individual and specific chemical compounds from the solution. 58 In conclusion, the EO treatment method was employed effectively to degrade the NEOs, and the optimum concentration was observed to be 200 ppm for all the NEOs. EO with Biodegradation of NEOs.…”

“…55,57 In TH, C−N stretching (1006.24 cm −1 ) and the CH aliphatic group (1386.78 cm −1 ) completely disappeared; besides, the other aromatic and aliphatic compounds were highly reduced in the EO process. 42,58 The observed structural changes were shown and may lead to the disappearance of individual and specific chemical compounds from the solution. 58 In conclusion, the EO treatment method was employed effectively to degrade the NEOs, and the optimum concentration was observed to be 200 ppm for all the NEOs.…”

“… 50 , 51 , 54 The IR spectrum of the CL system showed that the peaks at 2929.36, 2857.34, 1315.62, 1221.78, and 1120.96 cm –1 were highly reduced, which was due to the degradation of the molecules. 55 − 58 …”