Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties
In light of the escalating environmental concerns regarding pesticide accumulation, it is imperative to devise efficient strategies for their removal. Among the various options, activated carbons have emerged as promising candidates for adsorptive pesticide removal due to their many advantages, such...
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MDPI AG
2023-11-01
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author | Tamara Lazarević-Pašti Ana Jocić Vedran Milanković Tamara Tasić Katarina Batalović Stefan Breitenbach Christoph Unterweger Christian Fürst Igor A. Pašti |
author_facet | Tamara Lazarević-Pašti Ana Jocić Vedran Milanković Tamara Tasić Katarina Batalović Stefan Breitenbach Christoph Unterweger Christian Fürst Igor A. Pašti |
author_sort | Tamara Lazarević-Pašti |
collection | DOAJ |
description | In light of the escalating environmental concerns regarding pesticide accumulation, it is imperative to devise efficient strategies for their removal. Among the various options, activated carbons have emerged as promising candidates for adsorptive pesticide removal due to their many advantages, such as large surface area, well-developed porosity, and cost-effectiveness. However, the intricate relationship between the properties of these materials and their performance in pesticide adsorption remains largely unexplored. This study primarily focuses on examining the adsorption kinetics of three organophosphate pesticides: dimethoate, malathion (aliphatic), and chlorpyrifos (aromatic), using a range of cellulose-based activated carbon fibers with diverse specific surface areas, pore size distributions, and elemental compositions. By employing sophisticated data analysis tools, principal component analysis, and semi-empirical quantum chemical calculations, this study uncovers the importance of these distinct properties in efficiently removing structurally diverse pesticides. The results of the adsorption experiments suggested that these processes can be described using a pseudo-second-order kinetic model, which is confirmed via multiple linear regression. The obtained data suggest that the most effective carbon material for pesticide removal should have a pore diameter of approximately 4 nm, low oxygen content, a unimodal pore size distribution, and a high presence of sp<sup>2</sup> domains. The insights from this research have the potential to guide the development of improved adsorbents and facilitate the rational selection of adsorbents tailored to specific pollutants based on their physicochemical properties and the pollutants’ chemical structure. By shedding light on the vital connection between adsorbent properties and performance, our findings significantly advance sustainable and effective pesticide removal, thereby fostering a cleaner and healthier environment. |
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spelling | doaj.art-1eac835d06a44f70a8d40ea9223e98582023-12-22T13:59:15ZengMDPI AGC2311-56292023-11-019410310.3390/c9040103Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical PropertiesTamara Lazarević-Pašti0Ana Jocić1Vedran Milanković2Tamara Tasić3Katarina Batalović4Stefan Breitenbach5Christoph Unterweger6Christian Fürst7Igor A. Pašti8VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, Department of Physical Chemistry, University of Belgrade, Mike Petrovica Alasa 12-14, 11000 Belgrade, SerbiaVINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, Department of Physical Chemistry, University of Belgrade, Mike Petrovica Alasa 12-14, 11000 Belgrade, SerbiaVINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, Department of Physical Chemistry, University of Belgrade, Mike Petrovica Alasa 12-14, 11000 Belgrade, SerbiaVINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, Department of Physical Chemistry, University of Belgrade, Mike Petrovica Alasa 12-14, 11000 Belgrade, SerbiaVINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, Department of Physical Chemistry, University of Belgrade, Mike Petrovica Alasa 12-14, 11000 Belgrade, SerbiaWood K plus—Kompetenzzentrum Holz GmbH, Altenberger Strasse 69, 4040 Linz, AustriaWood K plus—Kompetenzzentrum Holz GmbH, Altenberger Strasse 69, 4040 Linz, AustriaWood K plus—Kompetenzzentrum Holz GmbH, Altenberger Strasse 69, 4040 Linz, AustriaFaculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, SerbiaIn light of the escalating environmental concerns regarding pesticide accumulation, it is imperative to devise efficient strategies for their removal. Among the various options, activated carbons have emerged as promising candidates for adsorptive pesticide removal due to their many advantages, such as large surface area, well-developed porosity, and cost-effectiveness. However, the intricate relationship between the properties of these materials and their performance in pesticide adsorption remains largely unexplored. This study primarily focuses on examining the adsorption kinetics of three organophosphate pesticides: dimethoate, malathion (aliphatic), and chlorpyrifos (aromatic), using a range of cellulose-based activated carbon fibers with diverse specific surface areas, pore size distributions, and elemental compositions. By employing sophisticated data analysis tools, principal component analysis, and semi-empirical quantum chemical calculations, this study uncovers the importance of these distinct properties in efficiently removing structurally diverse pesticides. The results of the adsorption experiments suggested that these processes can be described using a pseudo-second-order kinetic model, which is confirmed via multiple linear regression. The obtained data suggest that the most effective carbon material for pesticide removal should have a pore diameter of approximately 4 nm, low oxygen content, a unimodal pore size distribution, and a high presence of sp<sup>2</sup> domains. The insights from this research have the potential to guide the development of improved adsorbents and facilitate the rational selection of adsorbents tailored to specific pollutants based on their physicochemical properties and the pollutants’ chemical structure. By shedding light on the vital connection between adsorbent properties and performance, our findings significantly advance sustainable and effective pesticide removal, thereby fostering a cleaner and healthier environment.https://www.mdpi.com/2311-5629/9/4/103organophosphatepesticide removaladsorptionkineticsactivated carbontextural properties |
spellingShingle | Tamara Lazarević-Pašti Ana Jocić Vedran Milanković Tamara Tasić Katarina Batalović Stefan Breitenbach Christoph Unterweger Christian Fürst Igor A. Pašti Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties C organophosphate pesticide removal adsorption kinetics activated carbon textural properties |
title | Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties |
title_full | Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties |
title_fullStr | Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties |
title_full_unstemmed | Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties |
title_short | Investigating the Adsorption Kinetics of Dimethoate, Malathion and Chlorpyrifos on Cellulose-Derived Activated Carbons: Understanding the Influence of Physicochemical Properties |
title_sort | investigating the adsorption kinetics of dimethoate malathion and chlorpyrifos on cellulose derived activated carbons understanding the influence of physicochemical properties |
topic | organophosphate pesticide removal adsorption kinetics activated carbon textural properties |
url | https://www.mdpi.com/2311-5629/9/4/103 |
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