Selective adsorption mechanisms of iodinated trihalomethanes onto thiol-functionalized HKUST-1s in a mixed solute

Induvesa, Phacharapol; Ratanatawanate, Chalita; Wongrueng, Aunnop; Punyapalakul, Patiparn

doi:10.1016/j.jenvman.2022.115099

Cited by 4 publications

(4 citation statements)

References 35 publications

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“…Two different kinetic models including pseudo-first order and pseudo-second order equations were applied to quantitatively determine the rate of defluorination. The equation of pseudo-first order and pseudo-second order models are given by Equations (4)–(6) [ 21 , 40 , 41 ], respectively.…”

Section: Resultsmentioning

confidence: 99%

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Adsorption of Fluoride onto Acid-Modified Low-Cost Pyrolusite Ore: Adsorption Characteristics and Efficiencies

Induvesa

Rattanakom

Sriboonnak

et al. 2022

IJERPH

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Fluoride concentrations in the groundwater continue to be a major cause for concern in Thailand, particularly in the country’s north and west. The process of removing fluoride through adsorption has captured the attention of the abundance of ore in the mining industry. For the purpose of this investigation, the utilization of the adsorbent pyrolusite, which is a manganese mineral largely composed of MnO2, was a major component. Lab-scale experiments were conducted to investigate the efficacy of original pyrolusite ore (PA-1) and acid-modification PA (PA-2) created as low-cost adsorption materials for fluoride removal. The results of the adsorption rate in both PAs showed a fast rate of adsorption within 60 min of reaching equilibrium. According to the results of the adsorption capacity (qe) tests, PA that had been treated with an acid solution (PA-2) had the capacity to contain more fluoride (qe = 0.58 mg/g) than the PA that had been used initially (PA-1) (qe = 0.11 mg/g). According to the findings of an isotherm, primary adsorption behavior is determined by the effect that surface components and chemical composition have on porous materials. This is the first current study that provides a comparison between pyrolusite from Thailand’s mining industry and basic modified pyrolusite regarding their ability to remove a fluoride contaminant in synthetic groundwater by an adsorption process. Such an approach will be able to be used in the future to protect the community from excessive fluoride concentrations in household and drinking water treatment technology.

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Section: Resultsmentioning

confidence: 99%

“…Four isotherm models (linear, Langmuir and Freundlich and Sips model) were used to investigate the adsorption behavior of fluoride on pyrolusite ore adsorbents ( Table 5 ). [ 41 , 43 ]. The concentration range of 2–15 mg/L was used due to their occurrence with a solid to liquid ratio of 15 g/L.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of Fluoride onto Acid-Modified Low-Cost Pyrolusite Ore: Adsorption Characteristics and Efficiencies

Induvesa

Rattanakom

Sriboonnak

et al. 2022

IJERPH

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“…Induvesa and co-workers grafted dithioglycol on the Cu metal center of HKUST-1, which allowed them to adsorb different trihalomethanes. 183 The selectivity of the thiol modified MOF was tested against iodinated, brominated, and chlorinated iodo-trihalomethanes. Among the iodinated disinfection byproducts present in the mixture, thiolated HKUST-1 was showing better adsorption over iodoacetamide when compared to other disinfection ) generation.…”

Section: ■ Thiol Functionalization Of Sbusmentioning

confidence: 99%

“…Though the functionalized HKUST-1 showed higher efficiency in bromate ion removal than the pristine material, the BET surface area and the pore volume were reduced by 48% and 45%, respectively. Induvesa and co-workers grafted dithioglycol on the Cu metal center of HKUST-1, which allowed them to adsorb different trihalomethanes . The selectivity of the thiol modified MOF was tested against iodinated, brominated, and chlorinated iodo-trihalomethanes.…”

Section: Thiol Functionalization Of Sbusmentioning

confidence: 99%

Harnessing the Chemical Functionality of Metal–Organic Frameworks Toward Removal of Aqueous Pollutants

Rajendran,

Deen,

Ray

et al. 2024

Langmuir

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Wastewater treatment has been bestowed with a plethora of materials; among them, metal−organic frameworks (MOFs) are one such kind with exceptional properties. Besides their application in gas adsorption and storage, they are applied in many fields. In orientation toward wastewater treatment, MOFs have been and are being successfully employed to capture a variety of aqueous pollutants, including both organic and inorganic ones. This review sheds light on the postsynthetic modifications (PSMs) performed over MOFs to adsorb and degrade recalcitrant. Modifications performed on the metal nodes and the linkers have been explained with reference to some widely used chemical modifications like alkylation, amination, thiol addition, tandem modifications, and coordinate modifications. The boost in pollutant removal efficacy, reaction rate, adsorption capacity, and selectivity for the modified MOFs is highlighted. The rationale and the robustness of micromotor MOFs, i.e., MOFs with motor activity, and their potential application in the capture of toxic pollutants are also presented for readers. This review also discusses the challenges and future recommendations to be considered in performing PSM over a MOF concerning wastewater treatment.

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Mechanistic study of iodinated trihalomethanes adsorption onto MOF-derived carbons: Effect of porous structures and adsorption mechanisms

Siri

Wongrueng

Rakruam

et al. 2023

Journal of Environmental Chemical Engineering

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Selective adsorption mechanisms of iodinated trihalomethanes onto thiol-functionalized HKUST-1s in a mixed solute

Cited by 4 publications

References 35 publications

Adsorption of Fluoride onto Acid-Modified Low-Cost Pyrolusite Ore: Adsorption Characteristics and Efficiencies

Adsorption of Fluoride onto Acid-Modified Low-Cost Pyrolusite Ore: Adsorption Characteristics and Efficiencies

Harnessing the Chemical Functionality of Metal–Organic Frameworks Toward Removal of Aqueous Pollutants

Mechanistic study of iodinated trihalomethanes adsorption onto MOF-derived carbons: Effect of porous structures and adsorption mechanisms

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