Viscose-derived activated carbons as adsorbents for malathion, dimethoate, and chlorpyrifos—screening, trends, and analysis

Jocić, Ana; Breitenbach, Stefan; Pašti, Igor A.; Unterweger, Christoph; Fürst, Christian; Lazarević‐Pašti, Tamara

doi:10.1007/s11356-022-18721-1

Cited by 12 publications

(17 citation statements)

References 33 publications

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“…In this contribution, ACFs prepared from viscose fibers impregnated using diammonium hydrogen phosphate (DAHP) [ 18 ] were investigated as adsorbents for dimethoate removal in detail. Previously, we had shown that these ACFs were capable for OPs removal, particularly focusing on chlorpyrifos removal [ 25 ]. Using DAHP in a wide concentration range, chemical composition and textural properties of produced ACFs were effectively tuned, while fibrous morphology was preserved.…”

Section: Introductionmentioning

confidence: 99%

Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water

et al. 2022

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Extensive use of pesticides resulting in their accumulation in the environment presents a hazard for their non-target species, including humans. Hence, efficient remediation strategies are needed, and, in this sense, adsorption is seen as the most straightforward approach. We have studied activated carbon fibers (ACFs) derived from viscose fibers impregnated with diammonium hydrogen phosphate (DAHP). By changing the amount of DAHP in the impregnation step, the chemical composition and textural properties of ACFs are effectively tuned, affecting their performance for dimethoate removal from water. The prepared ACFs effectively reduced the toxicity of treated water samples, both deionized water solutions and spiked tap water samples, under batch conditions and in dynamic filtration experiments. Using the results of physicochemical characterization and dimethoate adsorption measurements, multiple linear regression models were made to reliably predict performance towards dimethoate removal from water. These models can be used to quickly screen among larger sets of possible adsorbents and guide the development of novel, highly efficient adsorbents for dimethoate removal from water.

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Section: Introductionmentioning

confidence: 99%

Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water

et al. 2022

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“…Second, carbon content (Table 1) also seems to be a determinant for fast adsorption kinetics. As discussed before [20,21], we believe that for studied materials, physisorption is operative. Thus positive correlation of carbon content with adsorption rate constants can be understood through the reduced amount of highly solvated domains, despite the fact that O atomic content also positively correlates to adsorption rate constants (much more for malathion compared to dimethoate).…”

Section: Discussionmentioning

confidence: 67%

“…Before the analysis, both k1 and k2 were multiplied by 100, while C and O contents were divided by 100 and 10, respectively, to scale all the quantities used in the analysis to similar orders of magnitude. In order to analyze the impact of different materials' properties, we have to note that, besides the fact that chlorpyrifos has an aromatic ring, the molecules are of similar sizes, around 1 nm along the longest axis of a molecule but with some differences in branching (malathion) [21]. Thus, the accommodation of all three molecules into the pore structure of studied adsorbents should start from pores with a diameter above 1 nm.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, the primary data we use here are given in Table 1. The materials studied in this work have already been investigated in terms of adsorption performance [20,21]. Still, the focus was on the thermodynamic properties and the analysis of the impact of materials' properties on the adsorption capacities.…”

Section: Materials Propertiesmentioning

confidence: 99%

“…The notation of samples is DAHP-X, where X stands for the amount of DAHP used for the impregnation step. As explained in previous publications addressing the adsorption capacities of the same series of ACFs [20,21], these materials are particularly suitable for testing different hypotheses about the adsorption process. All these materials have been derived from the same precursor and have identical morphology (Fig.…”

Section: Materials Propertiesmentioning

confidence: 99%

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Kinetics of Dimethoate, Malathion, and Chlorpyrifos Adsorption on Cellulose-derived Activated Carbons – Linking Performance to the Physicochemical Properties

Lazarević‐Pašti¹,

Jocić²,

Milanković³

et al. 2022

Preprint

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Due to the accumulation of pesticides in the environment, the development of efficient strategies for their removal is of utmost importance. Activated carbons are currently seen as excellent candidates for adsorptive pesticide removal based on several beneficial properties, like a large surface area, developed porosity, and low price. However, a deep link between materials' properties and performance is still elusive. Here we focus on the kinetics of three organophosphate pesticides removal, aliphatic dimethoate and malathion and aromatic chlorpyrifos, using a series of carefully prepared activated carbon fibers. Used adsorbents have a wide range of specific surface areas, pore size distributions, and elemental content, allowing the establishment of the link between physicochemical properties and their performance as adsorbents. We use data analysis tools to link these properties and discuss their different roles in the removal of three structurally different yet extremely dangerous pesticides. The obtained results can guide the synthesis of novel adsorbents or rationally select adsorbents for specific target pollutants based on the physicochemical properties of adsorbents and the chemical structure of pollutants.

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Modified biomass adsorbents for removal of organic pollutants: a review of batch and optimization studies

Adegoke

Akinnawo

Adebusuyi³

et al. 2023

Int. J. Environ. Sci. Technol.

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Modification of the adsorbent surfaces has been considered a fascinating strategy that enhances biomass-based adsorption properties for efficient removal of organic pollutants. This is based on the attempt to replace the cost-ineffectiveness of the commercial activated carbon. The present study discusses different modification strategies and a review on modified biomass materials for the sorption of organic contaminants. Unlike previous literatures in the field, wider range of these pollutants are discussed in this study under different categories including pesticides (such as insecticides, herbicides, fungicides), pharmaceutical (e.g. analgesic and antipyretic drugs, antibiotic drugs, non-steroidal anti-inflammatory drugs and antimalaria drugs), and dyes (e.g. azo, xanthene, miscellaneous diagnostic, tri-aryl methane, and phenol-derived polymeric dyes). It was observed that the acid-activated Posidonia oceanica and HNO3-modified rice husk displayed the highest and lowest adsorption capacities of 2681.9 and 0.35 mg/g for removing Rhodamine B dye and methyl parathion pesticide, respectively. The mechanistic aspects of organic pollutants adsorption, their corresponding regeneration studies, and environmental challenges with chemical modifications are also discussed. The use of computational (optimization) models for modified biomass-based adsorbents to remove organic pollutants is devoid in previous reviews but discussed in the present study. To foster more advancement in this field, the concluding part presents various challenges and knowledge gaps for furthering research towards more realistic industrial implementations.

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Viscose-derived activated carbons as adsorbents for malathion, dimethoate, and chlorpyrifos—screening, trends, and analysis

Cited by 12 publications

References 33 publications

Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water

Viscose-Derived Activated Carbons Fibers as Highly Efficient Adsorbents for Dimethoate Removal from Water

Kinetics of Dimethoate, Malathion, and Chlorpyrifos Adsorption on Cellulose-derived Activated Carbons – Linking Performance to the Physicochemical Properties

Modified biomass adsorbents for removal of organic pollutants: a review of batch and optimization studies

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