Tapping the potential of a glucosamine polysaccharide-diatomaceous earth hybrid adsorbent in the solid phase extraction of a persistent organic pollutant and toxic pesticide 4,4′-DDT from water

Kodali, Jagadeesh; Srinivas, P.; Arunraj, Balasubramanian; Kumar, A. Santhana Krishna; Rajesh, N.

doi:10.1039/d1ra07868b

Cited by 10 publications

(4 citation statements)

References 40 publications

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“…The Langmuir isotherm equation is commonly used to model monolayer adsorption on a homogeneous adsorbent surface. The linear form of the Langmuir isotherm is calculated as follows 22 : where q e is the equilibrium adsorption capacity (mg/g), C e is the equilibrium concentration of adsorbed AFB1 solution (mg/L), q m is the maximum adsorption capacity at the saturation of a monolayer (mg/g) and b is the Langmuir constant (L/mg).…”

Section: Methodsmentioning

confidence: 99%

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Synthesis and characterization of aluminosilicate and zinc silicate from sugarcane bagasse fly ash for adsorption of aflatoxin B1

Niamnuy,

Sungsinchai,

Jarernsamrit

et al. 2024

Sci Rep

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Sugarcane bagasse fly ash, a residual product resulting from the incineration of biomass to generate power and steam, is rich in SiO2. Sodium silicate is a fundamental material for synthesizing highly porous silica-based adsorbents to serve circular practices. Aflatoxin B1 (AFB1), a significant contaminant in animal feeds, necessitates the integration of adsorbents, crucial for reducing aflatoxin concentrations during the digestive process of animals. This research aimed to synthesize aluminosilicate and zinc silicate derived from sodium silicate based on sugarcane bagasse fly ash, each characterized by a varied molar ratio of aluminum (Al) to silicon (Si) and zinc (Zn) to silicon (Si), respectively. The primary focus of this study was to evaluate their respective capacities for adsorbing AFB1. It was revealed that aluminosilicate exhibited notably superior AFB1 adsorption capabilities compared to zinc silicate and silica. Furthermore, the adsorption efficacy increased with higher molar ratios of Al:Si for aluminosilicate and Zn:Si for zinc silicate. The N2 confirmed AFB1 adsorption within the pores of the adsorbent. In particular, the aluminosilicate variant with a molar ratio of 0.08 (Al:Si) showcased the most substantial AFB1 adsorption capacity, registering at 88.25% after an in vitro intestinal phase. The adsorption ability is directly correlated with the presence of surface acidic sites and negatively charged surfaces. Notably, the kinetics of the adsorption process were best elucidated through the application of the pseudo-second-order model, effectively describing the behavior of both aluminosilicate and zinc silicate in adsorbing AFB1.

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Section: Methodsmentioning

confidence: 99%

“…The Langmuir isotherm equation is commonly used to model monolayer adsorption on a homogeneous adsorbent surface. The linear form of the Langmuir isotherm is calculated as follows 22 :…”

Section: Static Adsorption Isotherms and Thermodynamic Studiesmentioning

confidence: 99%

Synthesis and characterization of aluminosilicate and zinc silicate from sugarcane bagasse fly ash for adsorption of aflatoxin B1

Niamnuy,

Sungsinchai,

Jarernsamrit

et al. 2024

Sci Rep

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show abstract

“…Although many nanomaterials such as metal–organic frameworks (MOFs) ( Xu et al, 2022a ), carbon nanotubes ( Sajid et al, 2022 ), etc. are used to effectively remove drugs from water, traditional adsorption materials such as bentonite ( Guan et al, 2022 ), kaolinite ( Gao et al, 2022 ), diatomaceous earth ( Kodali et al, 2022 ), activated carbon ( Balarak and McKay, 2021 ) and clay minerals ( Zhao et al, 2022 ) are still the mainstream adsorbents in the market.…”

Section: Introductionmentioning

confidence: 99%

Insight into core -shell microporous zinc silicate adsorbent to eliminate antibiotics in aquatic environment under the COVID-19 pandemic

Zhou

et al. 2023

Journal of Cleaner Production

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“…There are hydroxy groups on the surface of DE particles, which can be utilized to functionalize DE with various functional groups/chains. These properties make DE an ideal support material for adsorbents, such as metal adsorbents [22][23][24], toxin adsorbents [25][26][27], superhydrophobic coatings/materials [28,29], oil-spill adsorbents from water bodies [30], and also in drug delivery [31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Modified Diatomaceous Earth in Heparin Recovery from Porcine Intestinal Mucosa

Das,

Khambhati,

Longoria

et al. 2023

Molecules

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Heparin, a highly sulfated glycosaminoglycan, is a naturally occurring anticoagulant that plays a vital role in various physiological processes. The remarkable structural complexity of heparin, consisting of repeating disaccharide units, makes it a crucial molecule for the development of commercial drugs in the pharmaceutical industry. Over the past few decades, significant progress has been made in the development of cost-effective adsorbents specifically designed for the adsorption of heparin from porcine intestinal mucosa. This advancement has been driven by the need for efficient and scalable methods to extract heparin from natural sources. In this study, we investigated the use of cationic ammonium-functionalized diatomaceous earth, featuring enhanced porosity, larger surface area, and higher thermal stability, to maximize the isolated heparin recovery. Our results showed that the higher cationic density and less bulky quaternary modified diatomaceous earth (QDADE) could adsorb up to 16.3 mg·g−1 (31%) of heparin from the real mucosa samples. Additionally, we explored the conditions of the adsorbent surface for recovery of the heparin molecule and optimized various factors, such as temperature and pH, to optimize the heparin uptake. This is the introductory account of the implementation of modified diatomaceous earth with quaternary amines for heparin capture.

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Tapping the potential of a glucosamine polysaccharide-diatomaceous earth hybrid adsorbent in the solid phase extraction of a persistent organic pollutant and toxic pesticide 4,4′-DDT from water

Abstract: A chitosan (a glucosamine polysaccharide)-diatomaceous earth hybrid was studied for the adsorption of 4,4′-dichloro-diphenyl-trichloroethane (4,4′-DDT), a persistent organic pollutant and organochlorine pesticide compound from water.

Cited by 10 publications

References 40 publications

Synthesis and characterization of aluminosilicate and zinc silicate from sugarcane bagasse fly ash for adsorption of aflatoxin B1

Synthesis and characterization of aluminosilicate and zinc silicate from sugarcane bagasse fly ash for adsorption of aflatoxin B1

Insight into core -shell microporous zinc silicate adsorbent to eliminate antibiotics in aquatic environment under the COVID-19 pandemic

Modified Diatomaceous Earth in Heparin Recovery from Porcine Intestinal Mucosa

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