Mechanistic insights on immobilization and decontamination of hexavalent chromium onto nano MgS/FeS doped cellulose nanofibres

Sankararamakrishnan, Nalini; Shankhwar, Anil Kumar; Chauhan, Divya

doi:10.1016/j.chemosphere.2019.04.166

Cited by 42 publications

(6 citation statements)

References 51 publications

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“…In composites, nanocellulose surfaces also serve as nucleation and growth sites for metal organic frameworks (MOFs) and nanoparticles, , as reductants, or in the control of aggregation. , Finally, during adsorption, nanocelluloses can also enhance performance and longevity of adsorbents by controlling attrition/loss of nanoparticles from the adsorbent surface. − In the following sections, we survey in detail, nanocellulose-containing composites and their water treatment applications.…”

Section: Cellulose Used In Water Filtrationmentioning

confidence: 99%

“…Notwithstanding, several nanocellulose antimicrobial materials suitable for water treatment have been synthesized by (i) surface modification with polymers having antimicrobial properties, e.g., quaternary ammonium compounds, ,− or (ii) complexation with nanomaterials having antimicrobial properties including zeolites, graphene oxide, organic agents, and metal/metal oxide nanoparticles, e.g., Ag, , ZnO, and TiO 2 . In this latter approach, nanocelluloses may act as nanoparticle nucleation sites to decrease nanoparticle agglomeration, thereby increasing sorptive surface areas and antimicrobial action, or they may act as reductants . Taking advantage of the reductive properties of TEMPO-oxidized CNF, Zhang et al prepared Ag-doped nanofibers by hydrothermal synthesis .…”

Section: Cellulose Used In Water Filtrationmentioning

confidence: 99%

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Cellulose: A Review of Water Interactions, Applications in Composites, and Water Treatment

et al. 2023

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Cellulose is known to interact well with water, but is insoluble in it. Many polysaccharides such as cellulose are known to have significant hydrogen bond networks joining the molecular chains, and yet they are recalcitrant to aqueous solvents. This review charts the interaction of cellulose with water but with emphasis on the formation of both natural and synthetic fiber composites. Covering studies concerning the interaction of water with wood, the biosynthesis of cellulose in the cell wall, to its dispersion in aqueous suspensions and ultimately in water filtration and fiber-based composite materials this review explores water−cellulose interactions and how they can be exploited for synthetic and natural composites. The suggestion that cellulose is amphiphilic is critically reviewed, with relevance to its processing. Building on this, progress made in using various charged and modified forms of nanocellulose to stabilize oil−water emulsions is addressed. The role of water in the aqueous formation of chiral nematic liquid crystals, and subsequently when dried into composite films is covered. The review will also address the use of cellulose as an aid to water filtration as one area where interactions can be used effectively to prosper human life.

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Section: Cellulose Used In Water Filtrationmentioning

confidence: 99%

Section: Cellulose Used In Water Filtrationmentioning

confidence: 99%

Cellulose: A Review of Water Interactions, Applications in Composites, and Water Treatment

et al. 2023

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“…Broad band around 3700 cm −1 in both MgS@CNF and Cd- MgS@CNF could be attributed to –OH stretching vibrations of hydrogen bonded cellulose moeity whereas the sharp peak around 3427 cm −1 is due to the free –OH stretching vibrations. The stretching bands of O-CH 3 are observed at 2930 cm −1 which arises from the trace lignin of cellulose fibres 22,23 . The S-O group gave rise symmetric and asymmetric vibrations at 1109 and 1023 cm −1 respectively 24 .…”

Section: Resultsmentioning

confidence: 99%

“…Agrowaste namely dried and powdered sugarcane bagasse was used to prepare cellulose nanofibers by the procedure reported elsewhere 23 . Briefly soxhlet extraction was initially performed on raw sugarcane bagasse for 6 h using organic mixture consisting of toluene and ethanol to remove the organic contaminants.…”

Section: Methodsmentioning

confidence: 99%

Performance of novel MgS doped cellulose nanofibres for Cd(II) removal from industrial effluent – mechanism and optimization

Sankararamakrishnan

Singh

Srivastava

2019

Sci Rep

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Green environment friendly and novel nano MgS decorated cellulose nanofibres (MgS@CNF) were prepared, characterized and evaluated towards the removal of heavy metal namely, cadmium from aqueous solutions. Cellulose nanofibres acted as a template for effective dispersion of MgS nanoparticles and also aid in the complexation of cadmium ions. In depth X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and Fourier transform infra red spectroscopy (FTIR) studies revealed that doped MgS on mild acidification yields insitu production of H 2 S which effectively complexes cadmium ion to form cadmium sulfide. The reaction followed pseudo first order kinetics with regression coefficient in the order of 0.98. A very high Langmuir adsorption capacity in the order of 333.33 mg/g was obtained for MgS@CNF. Finally, MgS@CNF was applied towards the removal of cadmium from organic and TDS rich tannery waste water. MgS@CNF was effective in bringing down the concentration from ppm to ppb levels.

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“…Numerous polymers such as polyvinyl alcohol (PVA), chitosan, poly (methyl methacrylate) (PMA), poly-aniline, poly-pyrrole, poly-urea, poly-urethane have been used to a developed adsorbent or filter materials for the confiscation of a pollutant from water. However, high swelling ability and low affinity of adsorbent or filter materials towards contamination remain a concern [17][18][19][20][21] . In this context, hybrid materials or a combination of more than two or three materials might be overcome such associated issues with high removal efficiency.…”

Section: Introductionmentioning

confidence: 99%

Novel Three-Dimensional (3D) Carbon-Metal-Polymeric framework: Efficient removal of Chemical and Biological Contaminants

Venkataramanan

Sachan

Chauhan

et al. 2021

Preprint

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The continuously increasing existence of contaminants such as chemical and biological mainly dye, bacteria, and heavy metals ions in water bodies has increased environmental concern due to their hostile effects on living things. Therefore, it the necessity to be developing newer material that skirmishes such environmental menace. The present works focus on the synthesis of a novel three-dimensional (3D) polymer-metal-carbon (3D-PMC) framework for the exclusion of contaminants (chemical and biological) from water bodies. Initially, polyurethane (PU) foam was treated with nitric acid and used as a scaffold for the development of 3D-PMC. The copper nanosheet (Cu-NS) were deposited on to the functionalized PU foam to produce Cu-NS-PU material. The mechanically exfoliated graphene and mixed with chitosan to produce a graphene-chitosan homogenous suspension. The produce homogenous suspension was deposited Cu-NS-PU for the development of the 3D-PMC framework. The prepared 3D-PMC framework was characterized by scanning electron microscopy (SEM), Energy Dispersive X-Ray Analysis (EDX), Fourier-transform infrared spectroscopy (FT-IR), and X-rays diffraction (XRD) analysis. The prepared 3D-PMC framework was subjected to various adsorption parameters to assess the sorption ability of the material. The prepared 3D-PMC framework was effectively used for the removal of chromium (Cr) metal ions and Congo-red (CR) dye from the water system. The synthesis of the 3D-PMC framework is simple, novel, cost-effective, and economically viable. Therefore, the prepared 3D-PMC framework has the potential to be used as a filter assembly in water treatment technologies.

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Mechanistic insights on immobilization and decontamination of hexavalent chromium onto nano MgS/FeS doped cellulose nanofibres

Cited by 42 publications

References 51 publications

Cellulose: A Review of Water Interactions, Applications in Composites, and Water Treatment

Cellulose: A Review of Water Interactions, Applications in Composites, and Water Treatment

Performance of novel MgS doped cellulose nanofibres for Cd(II) removal from industrial effluent – mechanism and optimization

Novel Three-Dimensional (3D) Carbon-Metal-Polymeric framework: Efficient removal of Chemical and Biological Contaminants

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