Adsorption of mercury ions from wastewater aqueous solution by amide functionalized cellulose from sugarcane bagasse

Sun, Na; Xue, Wen; Yan, Chunjie

doi:10.1016/j.ijbiomac.2017.11.027

Cited by 70 publications

(27 citation statements)

References 41 publications

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“…Here the sponge shows strong NÀ H stretching peaks at 1392 cm À 1 and 1560 cm À 1 . [94] These two peaks are attributed to primary amines and secondary amines, respectively. In addition, the sponge has a characteristic peak caused by C=N stretching at about 1647 cm À 1 , which indicates that glutaraldehyde is an efficient cross-linker of chitosan and polyethyleneimine.…”

Section: Polyethyleneimine-functionalized Chitosan-lignin Composite Smentioning

confidence: 99%

Removal of Mercury Ions from Aqueous Solutions by Crosslinked Chitosan‐based Adsorbents: A Mini Review

Zhang

Crini

Lichtfouse

et al. 2020

The Chemical Record

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Abatement of mercury emissions in air and waters has become a global challenge due to the toxicity of mercury species for life, yet actual remediation techniques are limited. In particular, adsorption of mercury ions onto solids is widely used but most adsorption techniques are not specific, and in turn, removal efficiency is lower. Adsorbents developed so far include activated carbon, clay, bentonite, cellulose and chitosan. Chitosan derivatives have recently attracted research attention for water purification because their molecular frames contain a large amount of À NH 2 and À OH groups that can chelate with metal ions specifically. This manuscript reviews recent advances in chitosan-based adsorbents designed to remove mercury ions from wastewater. Focus is placed on their design, synthesis, characterization, adsorption properties, adsorption mechanisms and applications.

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Section: Polyethyleneimine-functionalized Chitosan-lignin Composite Smentioning

confidence: 99%

Removal of Mercury Ions from Aqueous Solutions by Crosslinked Chitosan‐based Adsorbents: A Mini Review

Zhang

Crini

Lichtfouse

et al. 2020

The Chemical Record

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“…These non‐conventional adsorbents include bacterial, algal, and fungal biomass . Other low‐cost adsorbents have been prepared from sunflower stalks, maize cob and husk, shea butter seed husk, cassava waste, white star apple, saw dust‐carbon, sago waste, rice husk, peanut hull, walnut, lignite, sugarcane bagasse cellulose, sheep bone, and many others.…”

Section: Purification Of Mercury‐containing Wastewater Using Low‐costmentioning

confidence: 99%

Trapping Ionic Mercury Using Different Adsorbents

Ojedokun

Oluwole

Bello

2019

CLEAN Soil Air Water

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Of recent, adsorption process has gained a lot of attention as a cheap and effective means of removing trace metals from wastewater prior to discharge into water bodies. Being flexible in design and operation, the process has enabled an optimal recovery of trace metals such that the treated effluents meet the desired standards for waste disposal. Mercury is a toxicant released into the environment from natural and anthropogenic sources. It is notorious for having an unusual tendency to bio‐accumulate and persist in the food chain. Presence of mercury in food, especially those of aquatic sources has drastic implications on human health. Therefore, efforts have been made to develop and optimize low‐cost activated carbon (AC) as adsorbents for scavenging mercury from aqueous effluents. Herein, how mercury accumulates across the food chain, its health implications, and the recent advancement in the use of low‐cost ACs as adsorbent for trapping mercury from wastewater are highlighted. Relationship between the mercury removal efficiency and the surface morphology of the adsorbents as well as the influence of prevailing experimental condition on the sorption process were addressed. Challenges and future prospects of the use of low‐cost adsorbents in addressing mercury pollution in the environment are discussed.

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“…At pH 3.6-7.0, the solution mainly contained Hg(OH) + and Hg(OH) 2 (with hydrated sizes exceeding that of Hg 2+ ) that were strongly bound by the adsorption sites of the sorbent surface, which resulted in enhanced Hg(II) removal efficiency. 27,28 At pH > pH PZC , more metal-binding sites on the negatively charged M-B surface were exposed, whereas a certain fraction of Hg(II) in solution was still present as positively charged ions. These conditions favoured the interaction between Hg(II) and the active groups on the M-B surface.…”

Section: Adsorption Propertiesmentioning

confidence: 99%

“…Since the initial concentration of metal ions in solution determines the magnitude of the driving force required to overcome the mass transfer resistance between aqueous and solid phases in batch experiments. 31 Based on the references to a number of related literatures 7,12,28 and our preliminary experiments, the effect of initial concentration was studied at 35 C and pH 7 for initial Hg(II) concentrations of 10.0-60.0 mg L À1 . The M-B dosage and contact time were xed at 4.0 g L À1 and 30 min, respectively.…”

Section: Effect Of Adsorbent Dosage the Effects Of Na-b And M-b Dosamentioning

confidence: 99%

Adsorption behavior of magnetic bentonite for removing Hg(ii) from aqueous solutions

et al. 2018

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Adsorption of mercury ions from wastewater aqueous solution by amide functionalized cellulose from sugarcane bagasse

Cited by 70 publications

References 41 publications

Removal of Mercury Ions from Aqueous Solutions by Crosslinked Chitosan‐based Adsorbents: A Mini Review

Removal of Mercury Ions from Aqueous Solutions by Crosslinked Chitosan‐based Adsorbents: A Mini Review

Trapping Ionic Mercury Using Different Adsorbents

Adsorption behavior of magnetic bentonite for removing Hg(ii) from aqueous solutions

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