Chitosan/nano-lignin based composite as a new sorbent for enhanced removal of dye pollution from aqueous solutions

Sohni, Saima; Hashim, Rokiah; Nidaullah, Hafιz; Lamaming, Junidah; Sulaiman, Othman

doi:10.1016/j.ijbiomac.2019.03.151

Cited by 124 publications

(47 citation statements)

References 43 publications

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“…Covalent bond formed during the reaction is a key factor for stable fixation of the pigment. In addition, the modified LMNPs can also be exploited as an adsorbent for water purification, efficiently adsorbing inorganic salt, [73] metal ion, [74] dye, [24d] and even viruses [75] etc. Adsorption of proteins [76] and enzymes [77] can also be realized, thus increasing added value of LMNPs.…”

Section: Applicationsmentioning

confidence: 99%

State‐of‐the‐Art: Applications and Industrialization of Lignin Micro/Nano Particles

Chen

Wang

et al. 2021

ChemSusChem

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As a new product of high‐value utilization of lignin, lignin micro/nano particles (LMNPs) have attracted the attention of researchers due to their non‐toxicity, corrosion‐resistance, UV resistance, and other excellent characteristics and potential application value. This article outlined the main preparation methods of LMNPs at the current stage, summarized and compared them from three perspectives of preparation technology, final product state and product composition. Subsequently, based on the different focuses of the properties of LMNPs, their application research progress as fillers, UV blockers, drug delivery carriers, among others, were introduced. Then a concise analysis of the technical and economic assessment and life cycle assessment of LMNPs in the process of industrialization was made. Finally, the main problems at present and the future development directions were analyzed and prospected to provide references for the deep processing of forest resources and the development of bio‐based nanomaterials.

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Section: Applicationsmentioning

confidence: 99%

State‐of‐the‐Art: Applications and Industrialization of Lignin Micro/Nano Particles

Chen

Wang

et al. 2021

ChemSusChem

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“…The bleaching of dye was assessed from the absorbance of dye solution before and after the incubation with polymeric composites at 665 nm by UV–Vis Spectrophotometer (Shimadzu UV‐2600, Shimadzu Scientific Instruments) for each time points. The percentage dye removal efficiency (% E t ) and the amount of dye adsorbed ( q ) onto the polymeric composites were calculated by the mass transfer equation as follows 27,42–45

q_{e} = ((), C_{0} - C_{e}) V / W

q_{t} = ((), C_{0} - C_{t}) V / W

% E_{t} = \frac{C_{0} - C_{t}}{{bold-italicC}_{0}} \times 100

where q and C is the quantity (mg g −1 ) of the dye adsorbed and concentration of dye solution (mg L −1 ) at initial state ( C 0 ), equilibrium state ( q e , C e ) and time “ t ” ( q t , C t ) respectively, whilst % E t , V and W is the percentage dye removal efficiency at each time point “ t ,” the volume of dye solution (L) and weight of adsorbent (g) respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Similarly, K F and n are the Freundlich adsorption isotherm constants obtained from the Y‐intercept and slope of log q e versus log C e linear plot, respectively, indicating the extent of adsorption and degree of nonlinearity against the concentration of adsorbate solution and adsorption. The value “ n ” designates the favorability of the adsorption reaction that probably lies between 1 and 10 39,42,46 …”

Section: Methodsmentioning

confidence: 99%

“…Also, R L is a constant separation factor, with no dimensions, in terms of which the crucial characteristics of Langmuir adsorption isotherm can be expressed as follows.

R_{L} = \frac{1}{1 + K_{L} C_{0}}

where C 0 (mg L −1 ) and K L (Lmg −1 ) are the initial concentration of adsorbate, and the Langmuir constant respectively. The parameter R L represents the nature of adsorption, where the values ranged as 0 ≤ R L ≥ 1 are given below 39,42,46 …”

Section: Methodsmentioning

confidence: 99%

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Facile fabrication and structural elucidation of lignin based macromolecular green composites for multifunctional applications

Mohanan¹,

Mohan

Selvasudha

et al. 2021

J of Applied Polymer Sci

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The present work deals with the preparation and characterization of lignin based macromolecular polymeric composites and applications thereof. Here lignin is complexed with pectin and/ or gellan gum, to form two different macromolecular green composites LP and LPG. The best ratios screened out through evaluation of nanoparticle characterization and rheology, then confirmed by surface morphology. The superior thermal stability is proved by DSC analysis. The reaction groups involving in complexation are confirmed by FT‐IR spectroscopic evaluation where the methoxy or methyl group of lignin interacts with the hydroxyl group of pectin and gellan gum to form nanocomposites. The reduced particle size and surface charge confirm the complexation due to interaction between ionizable functional groups. The applications of these composites are validated by their dye adsorption capacity and anti‐microbial properties (after loading of green silver nanoparticles) which proves the multifunctional properties of novel composites. The maximum dye removal efficiency of both composites is independent of initial dye concentration. Dye adsorption capacity is best fitted by Freundlich adsorption isotherms that follow pseudo‐second‐order adsorption kinetics. The antibacterial study of developed silver nanoparticle loaded and unloaded composites shows wide spectrum activity against E. coli and S. aureus, with higher inhibition efficiency against gram‐negative organism.

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“…The results showed that the mass ratio of chitosan to coffee residue 60/40 was the most useful for increasing dye removal. While a study by (Sohni et al, 2019) used the new chitosan / nano-lignin composite material as a highly efficient adsorbent (~ 83%) to remove methylene blue (MB) dyes. The adsorption mechanism carried out was one-color adsorption with a maximum adsorption capacity of 74.07 mg g -1 .…”

Section: Dye Removal Wastementioning

confidence: 99%

Industrial Application of Chitosan as Promising Material for Wastewater Purification: A Review

Belgis¹

2020

CSID-JID

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The rapid growth of the industry is giving positive effects for humans by providing daily needs and supporting economic development. However, the industrial process also releases pollution to the environment, which can cause water scarcity, biodiversity loss, and climate change. Removing these pollutants from various industrial wastes is a requirement for ensuring proper water quality for human consumption, agricultural use, and environmental safety. This work aims to explain the use of natural resources as a source of valuable compounds that can be used in wastewater treatment, particularly in Indonesia, by adopting a literature study method reviewing both national and international references. Chitosan is an effective bio-absorbent pollutant because of its high level of deacetylation and free amino groups, making it polycationic which is capable of being bound to metals, proteins, and dyes. Chitosan membranes can be applied only with chitosan material and composites: chitosan-Polyethylene Glycol (PEG), chitosan-Poly Vinyl Alcohol, chitosan-biosilica, chitosan-PVA-silica, chitosan-alginate, chitosan-cellulose, and chitosan-silica. Chitosan has the ability as a coagulant and reducing water turbidity. Chitosan can absorb metal ion (Cr (VI), Cs+, Pb(II), Fe, Cu(II)), dyes (anthraquinone dyes, brilliant blue, yellow dye, methylene blue, disperse orange, disperse blue, rhodamine B), drug residue, and hazardous materials, and can be used as raw material or in a film form. Since there is a high abundance of chitosan raw material in Indonesia, it is supposed to be able to support the application of chitosan as a natural purifying agent considering its high ability to absorb heavy metal and some dangerous materials.

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Chitosan/nano-lignin based composite as a new sorbent for enhanced removal of dye pollution from aqueous solutions

Cited by 124 publications

References 43 publications

State‐of‐the‐Art: Applications and Industrialization of Lignin Micro/Nano Particles

State‐of‐the‐Art: Applications and Industrialization of Lignin Micro/Nano Particles

Facile fabrication and structural elucidation of lignin based macromolecular green composites for multifunctional applications

Industrial Application of Chitosan as Promising Material for Wastewater Purification: A Review

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