Adsorption of Pb(II) from Aqueous Solutions Using Nanocrystalline Cellulose/Sodium Alginate/K-Carrageenan Composite Hydrogel Beads

Shen, Jian; Xu, Xiaoyan; Ouyang, Xiaolong; Jin, Micong

doi:10.1007/s10924-021-02334-9

Cited by 39 publications

(5 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 48 ] The possibility of converting cellulose into nanoscale materials using various methods has opened up a new arena to investigate the properties and possible applications in wastewater treatment [ 49 ]. The nanocelluloses are chosen over micro-sized materials for successful desalination, adsorption, and pollutant removal due to their high surface area, nano dimensions, good strength, and non-toxic nature [ 50 , 51 , 52 , 53 ]. The wastewater might be hypersaline and also include metals, organic wastes, emulsions, organic and inorganic dyes, and even harmful microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Progress and Prospects of Nanocellulose-Based Membranes for Desalination and Water Treatment

2022

View full text Add to dashboard Cite

Membrane-based desalination has proved to be the best solution for solving the water shortage issues globally. Membranes are extremely beneficial in the effective recovery of clean water from contaminated water sources, however, the durability as well as the separation efficiency of the membranes are restricted by the type of membrane materials/additives used in the preparation processes. Nanocellulose is one of the most promising green materials for nanocomposite preparation due to its biodegradability, renewability, abundance, easy modification, and exceptional mechanical properties. This nanocellulose has been used in membrane development for desalination application in the recent past. The study discusses the application of membranes based on different nanocellulose forms such as cellulose nanocrystals, cellulose nanofibrils, and bacterial nanocellulose for water desalination applications such as nanofiltration, reverse osmosis, pervaporation, forward osmosis, and membrane distillation. From the analysis of studies, it was confirmed that the nanocellulose-based membranes are effective in the desalination application. The chemical modification of nanocellulose can definitely improve the surface affinity as well as the reactivity of membranes for the efficient separation of specific contaminants/ions.

show abstract

Section: Introductionmentioning

confidence: 99%

Progress and Prospects of Nanocellulose-Based Membranes for Desalination and Water Treatment

2022

View full text Add to dashboard Cite

show abstract

“…It is the first time that sodium alginate and ZnO-NPs (ALg-ZnO) biocomposite beads were synthesized by the interaction between sodium alginate biopolymer and zinc oxide nanoparticles prepared by modified wet chemical method and used for the adsorption of chromium ions. Our study provides clue that ALg-ZnO biocomposite can be considered a promising solid adsorbent for the environmental applications, especially the elimination of toxic metals [8,[13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 82%

Fabrication, Characterization and Adsorption Investigation of Nano Zinc Oxide–Sodium Alginate Beads for Effective Removal of Chromium (VI) from Aqueous Solution

Hezma

Shaltout

Kabary

et al. 2023

J Inorg Organomet Polym

View full text Add to dashboard Cite

Alginate–zinc oxide (Alg–ZnO) biocomposite was synthesized and tested as a chromium ions Cr(VI) adsorbent for environmental applications. Alg–ZnO biocomposite was prepared by the interaction between sodium alginate biopolymer and zinc oxide nanoparticles (ZnO–NPs), prepared by modified wet chemical method. The solid adsorption characteristics of the synthesized Alg–ZnO biocomposite were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), and UV–Vis spectroscopy. Adsorption isotherms of chromium ions on the prepared Alg–ZnO biocomposite were investigated with varying the initial concentration of Cr(VI) under different application conditions such as pH, contact time, adsorbent dosage, and temperature. Adsorption of Cr(VI) was investigated by different isotherm models such as Langmuir, Freundlich, Temkin and Dubinin–Radushkevich models. Maximum adsorption capacities (31.09 and 34.63 mg/g) were achieved by ZnO–NPs and Alg–ZnO, respectively at 25 °C. The results of isotherm models indicate the perfect applicability of Langmuir and Dubinin–Radushkevich models, revealing the dominance of monolayer and the physisorption of chromium ions onto the studied adsorbents.

show abstract

“…Approaches to composite materials reported in literature include the preparation of cellulose-based materials using alginate [50][51][52][53][54], chitosan [55][56][57][58][59], hydroxyapatite [60][61][62], crown ethers [63], graphene oxide (GO) [64,65], magnetite (Fe 3 O 4 ) [66,67], montmorillonite [68][69][70][71][72][73], titanium dioxide [74], collagen [75], bentonite [76,77], and activated carbon [78,79], among others. Some of them are shown in the table below ( Nonetheless, in most of the mentioned cases, the main role of cellulose was just to provide mechanical resistance, a porous matrix insoluble in water, or both, while the metal adsorption capacity was provided by the other materials chosen for the adsorbents' preparation.…”

Section: Cellulosementioning

confidence: 99%

Polysaccharides as Economic and Sustainable Raw Materials for the Preparation of Adsorbents for Water Treatment

Díaz Bukvic,

Rossi,

Errea

2023

Polysaccharides

View full text Add to dashboard Cite

Adsorption processes, due to their technical simplicity and cost-effectiveness, have arisen as one of the most well-known, straightforward solutions to water pollution. In this context, polysaccharides, due to their abundance, biodegradability, and biocompatibility, are appealing raw materials for the design of adsorbents. Moreover, some of them, such as chitosan, can be obtained from organic waste products, and their use additionally contributes to solving another concerning problem: organic waste accumulation. Unfortunately, due to their low adsorption capacities and/or physicochemical properties, native polysaccharides are not suitable for this purpose. However, there are alternatives that can overcome these physical or chemical limitations, often taking advantage of the versatility of their polyhydroxylated structure. In this context, this review aims to present an overview of the advances from 2019 onwards in the design of new adsorbents for water treatment from cellulose, alginate, chitosan, and starch, addressing the two main strategies reported in the literature: the preparation of either polysaccharide-based composites or polysaccharide derivatives. It is important to point out that, herein, special emphasis is placed on the relationship between the chemical structure and the efficiency as adsorbents of the analyzed materials, in an attempt to contribute to the rational design of adsorbents obtained from polysaccharides.

show abstract

Adsorption of Pb(II) from Aqueous Solutions Using Nanocrystalline Cellulose/Sodium Alginate/K-Carrageenan Composite Hydrogel Beads

Cited by 39 publications

References 52 publications

Progress and Prospects of Nanocellulose-Based Membranes for Desalination and Water Treatment

Progress and Prospects of Nanocellulose-Based Membranes for Desalination and Water Treatment

Fabrication, Characterization and Adsorption Investigation of Nano Zinc Oxide–Sodium Alginate Beads for Effective Removal of Chromium (VI) from Aqueous Solution

Polysaccharides as Economic and Sustainable Raw Materials for the Preparation of Adsorbents for Water Treatment

Contact Info

Product

Resources

About