Removal of the heavy metal ions from aqueous solution using modified natural biomaterial membrane based on silk fibroin

Gao, Aiqin; Xie, Kongliang; Song, Xiyu; Zhang, Kai; Hou, Aiqin

doi:10.1016/j.ecoleng.2016.11.008

Cited by 56 publications

(24 citation statements)

References 31 publications

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“…12 and Table 5. Similar results were published by the other researchers, using the same kind of biosorbents and ions [35][36][37][38][39]. Table 5 CONCLUSION Based on the analysis of the obtained results, the following conclusions can be derived:…”

Section: Figure 12supporting

confidence: 82%

Biosorption of lead ions from aqueous solutions by beech sawdust and wheat straw

Božić

Gorgievski

Stanković

et al. 2021

CI&CEQ

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This paper presents the results on the Pb 2+ ions adsorption from synthetic Pb(NO3)2 solutions, using the beech sawdust and wheat straw as adsorbents. Physico-chemical characterization of the adsorbents included the specific surface area, pHpzc, SEM-EDS, and FTIR analysis. Adsorption kinetics and isotherms, as well as changes in the pH solution during the process, were monitored and analyzed. The results showed that the adsorption is well explained by the pseudo-second order kinetic model for both adsorbents. Adsorption of the Pb 2+ ions on sawdust and straw is well described by the Temkin isotherm, what is confirmed by the high values of the regression coefficient R 2. The maximum adsorption capacity of lead ions on the beech sawdust and wheat straw was 9.9 mg g-1 and 9.7 mg g-1 , respectively. The obtained results have indicated that the beech sawdust and wheat straw are suitable adsorbents for the adsorption of lead ions from dilute aqueous solutions.

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Section: Figure 12supporting

confidence: 82%

Biosorption of lead ions from aqueous solutions by beech sawdust and wheat straw

Božić

Gorgievski

Stanković

et al. 2021

CI&CEQ

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“…In the last decade, particular attention has been paid to the application of biotechnology for heavy metal pollution control [1][2][3][4][5][6][7][8] as an alternative to conventional techniques such as chemical precipitation, membrane filtration, electrochemical treatment, solvent extraction, ion exchange, evaporation, and adsorption on activated carbon. [9][10][11][12][13] In this sense, biosorption has been postulated as an alternative process based on the removal of metal or metalloid species from solution by various natural materials of biological origin.…”

mentioning

confidence: 99%

Valorization of keratin biofibers for removing heavy metals from aqueous solutions

Zhang

Carrillo

López‐Mesas

et al. 2018

Textile Research Journal

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Four common waste keratin biofibers (human hair, dog hair, chicken feathers and degreased wool) have been used as biosorbents for the removal of heavy metal ions from aqueous solutions. Different parameters of the biosorption processes were optimized in batch systems. For multiple-metal system, consisting on a mixture of eight metal ions (Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II)) , the total metal biosorption increased following the order: degreased wool > chicken feathers> human hair > dog hair. From the kinetic models tested, the pseudo-second order provided better results. Furthermore, biosorption isotherms of Pb(II) with the different keratin biofibers fitted properly Langmuir model. Surface morphology of the biosorbents were analyzed

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“…Furthermore, compared to other protein nanofibrils, silk nanofibrils possess superior mechanical properties and environmental stability, due to the high density of hydrogen bonding and the high values of crystallinity. Although there are many reports on the application of silk fibers composite products for proteins 58 , nanoparticles 59 , dyes 60 and heavy metals adsorption 57 , 61 , 62 , oil–water separation 63 , and antibacterial and antifouling coatings 64 , here, we only focus on silk nanofibrils applications in water purification.…”

Section: Protein Nanofibrils As New Water Purification Agentsmentioning

confidence: 99%

Protein nanofibrils for next generation sustainable water purification

2021

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Water scarcity is rapidly spreading across the planet, threatening the population across the five continents and calling for global sustainable solutions. Water reclamation is the most ecological approach for supplying clean drinking water. However, current water purification technologies are seldom sustainable, due to high-energy consumption and negative environmental footprint. Here, we review the cutting-edge technologies based on protein nanofibrils as water purification agents and we highlight the benefits of this green, efficient and affordable solution to alleviate the global water crisis. We discuss the different protein nanofibrils agents available and analyze them in terms of performance, range of applicability and sustainability. We underline the unique opportunity of designing protein nanofibrils for efficient water purification starting from food waste, as well as cattle, agricultural or dairy industry byproducts, allowing simultaneous environmental, economic and social benefits and we present a case analysis, including a detailed life cycle assessment, to establish their sustainable footprint against other common natural-based adsorbents, anticipating a bright future for this water purification approach.

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Removal of the heavy metal ions from aqueous solution using modified natural biomaterial membrane based on silk fibroin

Cited by 56 publications

References 31 publications

Biosorption of lead ions from aqueous solutions by beech sawdust and wheat straw

Biosorption of lead ions from aqueous solutions by beech sawdust and wheat straw

Valorization of keratin biofibers for removing heavy metals from aqueous solutions

Protein nanofibrils for next generation sustainable water purification

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