A regenerable microporous adsorbent based on microcrystalline cellulose for organic pollutants adsorption

Șuteu, Daniela; Biliuță, Gabriela; Rusu, Lăcrămioara; Coseri, Sergiu; Vial, Christophe; Nica, Iulia

doi:10.5004/dwt.2019.23638

Cited by 4 publications

(2 citation statements)

References 53 publications

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“…Adsorption Capacity (mg Modified cellulose adsorbents [24] CI Reactive Blue 21 dye: 2 Cellulose derivative [25] MB: 135 MMCNF-PNA-2 (this work) MB: 192 Cationized cellulose [26] Methyl orange (MO): 76 Porous microcrystalline cellulose [27] MB: 82…”

Section: Materials Reportedmentioning

confidence: 99%

Preparation and Application of Responsive Nanocellulose Composites

Zhou,

Zhang,

2024

Polymers

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Cellulose nanofibrils/poly(N-Isopropylacrylamide) semi-interpenetrating networks (MMCNF-PNAs) were synthesized using an in situ fabrication (semi-IPN). The polymerization of N-isopropylacrylamide (NIPAM) (free radical) was conducted in the presence of magnetic modified cellulose nanofibrils (MMCNFs). The adsorption behaviors and surface morphology of the synthesized adsorbents were investigated systematically. The adsorption behaviors of the as-prepared MMCNF-PNA towards methylene blue (MB, as the model contaminant) dye was studied, and the optimal adsorption conditions were also studied. The adsorption processes could be well fitted using pseudo-second-order and Elovich kinetic models. Meanwhile, Langmuir and Freundlich isotherm models were used to fit the adsorption which occurred at 25, 37 and 65 °C. The corresponding results showed that the Freundlich isotherm model fitted the adsorption process better, indicating that the dye’s adsorption happened via heterogeneous adsorptive energies on the prepared MMCNF-PNAs. Their desorption and reusability were also studied to verify magnetic responsivity. To sum up, MMCNF-PNAs are promising magnetic and thermal stimuli-responsive adsorbents, showing a controlled adsorption/desorption process.

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Section: Materials Reportedmentioning

confidence: 99%

Preparation and Application of Responsive Nanocellulose Composites

Zhou,

Zhang,

2024

Polymers

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“…Lately, research has focused on removing persistent organic pollutants from water using as methods: adsorption/biosorption or advanced oxidation [11,[16][17][18][19][20]. Biosorption is a relevant and increasingly studied process for the removal of pollutants.…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Biosorbents Based on Microbial Biomass and Natural Polymers: Synthesis, Characterization and Application for the Removal of Drugs and Dyes from Aqueous Solutions

et al. 2021

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Pharmaceuticals and dyes are a very important part of the nonbiodegradable or hard biodegradable substances present in wastewater. Microorganisms are already known to be effective biosorbents, but the use of free microbial cells involves difficulties in their separation from effluents and limits their application in wastewater treatment. Thus, this study aimed to develop biosorbents by immobilizing Saccharomyces cerevisiae, Saccharomyces pastorianus and Saccharomyces pastorianus residual biomass on natural polymers (alginate and chitosan) and to evaluate the biosorptive potential for removal of pharmaceuticals and dyes from water. Six types of biosorbents were synthesized and characterized by Scanning Electron Microscopy and Fourier Transform Infrared Spectroscopy techniques and their biosorptive capacities for three drugs (cephalexin, rifampicin, ethacridine lactate) and two dyes (orange II and indigo carmine) were evaluated. The obtained results show that the removal efficiency depends on the polymer type used for the immobilization. In case of alginate the removal efficiency is between 40.05% and 96.41% for drugs and between 27.83% and 58.29% for dyes, while in the case of chitosan it is between 40.83% and 77.92% for drugs and between 17.17% and 44.77% for dyes. In general, the synthesized biosorbents proved to be promising for the removal of drugs and dyes from aqueous solutions.

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Potential of natural clay derived functionalized adsorbent for the effective remediation of sanitary landfill leachate

Foo¹

2020

Desalination and Water Treatment

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A regenerable microporous adsorbent based on microcrystalline cellulose for organic pollutants adsorption

Cited by 4 publications

References 53 publications

Preparation and Application of Responsive Nanocellulose Composites

Preparation and Application of Responsive Nanocellulose Composites

Eco-Friendly Biosorbents Based on Microbial Biomass and Natural Polymers: Synthesis, Characterization and Application for the Removal of Drugs and Dyes from Aqueous Solutions

Potential of natural clay derived functionalized adsorbent for the effective remediation of sanitary landfill leachate

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