2021
DOI: 10.1515/zpch-2020-1765
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Efficient adsorption of chlorpyrifos onto modified activated carbon by gamma irradiation; a plausible adsorption mechanism

Abstract: Commercial Granulated Active Carbon (GAC) has been modified using 10 Gy dose Gamma irradiation (GAC10 Gy) for increasing its ability of air purification. Both, the raw and treated samples were applied for removing Chlorpyrifos pesticide (CPF) from ambient midair. Physicochemical properties of the two materials were characterized by Fourier Transform Infrared (FT-IR) and Raman spectroscopy. The phase formation and microstructure were monitored using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), s… Show more

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Cited by 8 publications
(6 citation statements)
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“…This result is well in line with previous adsorption kinetics studies of different pesticides on carbon materials [23][24][25]. Minute ranges of chlorpyrifos adsorption half-times were reported for gamma radiation-modified activated carbon [26], while graphitic carbon nitride (g-C3N4) incorporated chitosan showed chlorpyrifos adsorption kinetics very similar to presented ACFs [27]. Nevertheless, half-times obtained here were much higher compared to, for example, the one found for chlorpyrifos removal by NU-1000 metal-organic framework, which was only 0.43 min [28].…”
Section: Chlorpyrifos Removalsupporting
confidence: 92%
“…This result is well in line with previous adsorption kinetics studies of different pesticides on carbon materials [23][24][25]. Minute ranges of chlorpyrifos adsorption half-times were reported for gamma radiation-modified activated carbon [26], while graphitic carbon nitride (g-C3N4) incorporated chitosan showed chlorpyrifos adsorption kinetics very similar to presented ACFs [27]. Nevertheless, half-times obtained here were much higher compared to, for example, the one found for chlorpyrifos removal by NU-1000 metal-organic framework, which was only 0.43 min [28].…”
Section: Chlorpyrifos Removalsupporting
confidence: 92%
“…The rate constant for the adsorption of MB onto (GA), (OS400), and (OSMG) was calculated using pseudo-first order (PFO), pseudo-second order (PSO) and intra-particle diffusion (IPD) models expressed by Eq. (6-9) [10,89]. As shown in Table 6.…”
Section: Kinetic Studymentioning
confidence: 97%
“…One of the most successful strategies for eliminating pollutants from impure wastewater was adsorption [10,11]. Adsorption provides a number of benefits, including a high removal efficiency, simple , easy to application, capacity to handle dyes in highly concentrated solutions [12,13] In the adsorption process, a variety of adsorbent materials were employed, including clay minerals, nanomaterial's, agricultural waste, and biological biomasses.…”
Section: Introductionmentioning
confidence: 99%
“…The rate constant for the adsorption of MB onto (GA), (OS400), and (OSMG) was calculated using pseudo-first order (PFO), pseudo-second order (PSO) and intra-particle diffusion (IPD) models expressed by Eq. (11-14) 11,97 . As shown in Table 7.…”
Section: Effect Of Temperaturementioning
confidence: 99%