Cellulose based grafted biosorbents - Journey from lignocellulose biomass to toxic metal ions sorption applications - A review

Kumar, Rajesh; Sharma, Rajeev Kr.; Singh, Anirudh P.

doi:10.1016/j.molliq.2017.02.050

Cited by 174 publications

(90 citation statements)

References 263 publications

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“…crassipes is considered as an invasive species, due to its adaptability to a wide type of ecosystems, which considerably affects the natural balance of aquatic systems (lagoons, lakes, wetlands, among others) and feeds mainly on the concentration of nutrients of effluents from agro-industry, deforestation, or insufficient water treatment. E. crassipes has significant amounts of cellulose and hemicellulose in its plant morphology, which is because it has been used in many phytoremediation and bioenergy projects (Kumar et al 2017;Mishima et al 2008;Magdum et al 2012;Baldeón et al 2017;Wu et al 2015).…”

Section: Characteristics Of E Crassipes As Adsorbentmentioning

confidence: 99%

Estimation of equilibrium times and maximum capacity of adsorption of heavy metals by E. crassipes (review)

Sayago

Castro

Rivera

et al. 2020

Environ Monit Assess

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Cellulose emerges as an alternative for the treatment of water contaminated with heavy metals due to its abundant biomass and its proven potential in the adsorption of pollutants. The aquatic plant Eichhornia crassipes is an option as raw material in the contribution of cellulose due to its enormous presence in contaminated wetlands, rivers, and lakes. The efficiency in the removal of heavy metals is due to the cation exchange between the hydroxyl groups and carboxyl groups present in the biomass of E. crassipes with heavy metals. Through different chemical and physical transformations of the biomass of E. crassipesThe objective of this review article is to provide a discussion on the different mechanisms of adsorption of the biomass of E. crassipes to retain heavy metals and dyes. In addition to estimating equilibrium, times through kinetic models of adsorption and maximum capacities of this biomass through equilibrium models with isotherms, in order to design one biofilter for treatment systems on a larger scale represented the effluents of a real industry.

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Section: Characteristics Of E Crassipes As Adsorbentmentioning

confidence: 99%

Estimation of equilibrium times and maximum capacity of adsorption of heavy metals by E. crassipes (review)

Sayago

Castro

Rivera

et al. 2020

Environ Monit Assess

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“…Natural biosorbents like mango kernels, Macadamia nutshells, coconut shells, pine cone, almond shells, sawdust, palm branches, and hazelnut consist in their plant cell walls chiefly the lignin, cellulose, and hemicellulose as the main structural components [ 1 – 5 ]. Consequently, these materials contain a cornucopia of surface functional groups including ketones, aldehydes, esters, ethers, and alcohols.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Hexavalent Chromium by Diphenylcarbazide-GraftedMacadamiaNutshell Powder

Maremeni

Modise

Mtunzi

et al. 2018

Bioinorganic Chemistry and Applications

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Macadamia nutshell powder oxidized by hydrogen peroxide solutions (MHP) was functionalized by immobilizing 1,5′-diphenylcarbazide (DPC) on its surface. The effectiveness of grafting was confirmed by the Fourier transform infrared spectrum due to the presence of NH and C=C stretches at 3361, 1591, and 1486 cm−1, respectively, on the grafted material which were absent in the nongrafted material. Thermogravimetric analysis revealed that the presence of DPC on the surface of Macadamia shells lowered the thermal stability from 300°C to about 180°C owing to the volatile nature of DPC. Surface roughness as a result of grafting was appreciated on the scanning electron microscopy images. Parameters influencing the adsorptive removal of Cr(VI) were examined and found to be optimal at pH 2, 120 min, 150 mg/L, and 2.5 g/L. Grafting MHP with DPC leads to an increase in the Langmuir monolayer capacity from 37.74 to 72.12 mg/g. Grafting MHP with DPC produced adsorbent with improved removal efficiency for Cr(VI).

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“…51 Cellulose exhibit intrinsic characteristics, such as robustness, abundance, biodegradability, nontoxicity, mechanical, and thermal stability. 51,52 Also, cellulose is odourless water soluble linear polymer whose monomeric units of b-D-anhydroglucopyranose are covalently bonded via C 1 -C 4 b-glycosidic linkages. 53 Its water solubility property is detrimental for its use as an adsorbent in raw form; hence, numerous functionalization procedures have been adopted.…”

Section: Adsorbent Classification Characteristics and Development Himentioning

confidence: 99%

Recent advances in hexavalent chromium removal from aqueous solutions by adsorptive methods

2019

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Cellulose based grafted biosorbents - Journey from lignocellulose biomass to toxic metal ions sorption applications - A review

Cited by 174 publications

References 263 publications

Estimation of equilibrium times and maximum capacity of adsorption of heavy metals by E. crassipes (review)

Estimation of equilibrium times and maximum capacity of adsorption of heavy metals by E. crassipes (review)

Adsorptive Removal of Hexavalent Chromium by Diphenylcarbazide-GraftedMacadamiaNutshell Powder

Recent advances in hexavalent chromium removal from aqueous solutions by adsorptive methods

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