Preferential adsorption of Cu in a multi-metal mixture onto biogenic elemental selenium nanoparticles

Jain, Rahul; Dominic, Domician; Jordan, Norbert; Rene, Eldon R.; Weiß, Stephan; Hullebusch, Eric D. van; Hübner, René; Lens, Piet N.L.

doi:10.1016/j.cej.2015.08.144

Cited by 65 publications

(16 citation statements)

References 37 publications

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“…For example, addition of the enzyme alcohol dehydrogenase, previously identified on E. coli BioSeNPs, to ChSeNPs caused a decrease in the final size of SeNPs with respect to ChSeNPs synthesized in the absence of this enzyme (Dobias et al ., 2011). Moreover, ChSeNPs exposed to bovine serum albumin (BSA) or EPS resulted in more spherical and stable NPs compared to untreated ChSeNPs (Jain et al ., 2016). Stabilizing effects due to capping molecules were also observed in ChSeNPs in the presence of polysaccharides (Zhang et al ., 2004).…”

Section: Introductionmentioning

confidence: 99%

Biomolecular composition of capping layer and stability of biogenic selenium nanoparticles synthesized by five bacterial species

Bulgarini

Lampis

Turner

et al. 2020

Microbial Biotechnology

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Biogenic metal/metalloid nanoparticles of microbial origin retain a functional biomolecular capping layer that confers structural stability. Little is known about the composition of such capping material. In this study, selenium nanoparticles (SeNPs) synthesized by five different bacterial strains underwent comparative analysis with newly proposed protocols for quantifying the concentration of carbohydrates, proteins and lipids present in capping layers. SeNPs were therefore treated with two different detergents to remove portions of the surrounding caps in order to assess the resulting effects. Capping material quantification was carried out along with the measure of parameters such as hydrodynamic diameter, polydispersity and surface charge. SeNPs from the five strains showed differences in their distinct biomolecule ratios. On the other hand, structural changes in the nanoparticles induced by detergents did not correlate with the amounts of capping matrix removed. Thus, the present investigation suggests a hypothesis to describe capping layer composition of the bacterial SeNPs: some biomolecules are bound more strongly than others to the core metalloid matrix, so that the diverse capping layer components differentially contribute to the overall structural characteristics of the nanoparticles. Furthermore, the application of the approach here in combining quantification of cap-associated biomolecules with the measurement of structural integrity-related parameters can give the biogenic nanomaterial field useful information to construct a data bank on biogenically synthesized nanostructures.

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Section: Introductionmentioning

confidence: 99%

Biomolecular composition of capping layer and stability of biogenic selenium nanoparticles synthesized by five bacterial species

Bulgarini

Lampis

Turner

et al. 2020

Microbial Biotechnology

View full text Add to dashboard Cite

show abstract

“…hydroxide, sulphide or chelating precipitation, as well as ion-exchange or adsorption (Wan Ngah et al 2002;Akar et al 2009;Zhu and Li 2015;Jain et al 2016), e.g. with activated carbon, carbon nanotubes, magnetic nanoparticles (Feitoza et al 2014), low-cost adsorbents from industrial waste streams (Castaldi et al 2015;Cretescu et al 2015) or bioadsorbents (Davis et al 2003;Deng et al 2013;Hokkanen et al 2013;Shaheen et al 2013;Bansal et al 2014;Ş en et al 2015;Komkiene and Baltrenaite 2016).…”

Section: Introductionmentioning

confidence: 99%

Phosphorylated nanocellulose papers for copper adsorption from aqueous solutions

Mautner

Maples

Kobkeatthawin

et al. 2016

Int. J. Environ. Sci. Technol.

118

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Copper is a major problem in industrial wastewater streams, seriously affecting the quality of potential drinking water. Several approaches, including continuous membrane processes or batch-wise application of adsorbents, are in use to tackle this problem. Unfortunately, these processes suffer from their particular drawbacks, such as low permeance or disposal of saturated adsorbents. However, a combination of these processes could constitute a step towards a more efficient copper removal solution. Here, we present a nanopaper ion-exchanger prepared from cellulose nanofibrils produced from fibre sludge, a paper industry waste stream, for the efficient, continuous removal of copper from aqueous solutions. This nanopaper ion-exchanger comprises phosphorylated cellulose nanofibrils that were processed into nanopapers by papermaking. The performance of these phosphorylated nanopaper membranes was determined with respect to their rejection of copper and permeance. It was shown that this new type of nanopaper is capable of rejecting copper ions during a filtration process by adsorption. Results suggest that functional groups on the surface of the nanopapers contribute to the adsorption of copper ions to a greater extent than phosphate groups within the bulk of the nanopaper. Moreover, we demonstrated that those nanopaper ion-exchangers could be regenerated and reused and that in the presence of calcium ions, the adsorption capacity for copper was only slightly reduced.

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“…[54] The same is applicable for metals such as silver, iron, chromium, and other commonly used metals in industries. Many processes have been adopted in the past to clear heavy metal water pollution such as chemical precipitation, photocatalysis, ion exchange, physical adsorption, [55][56][57][58][59][60] and biological treatment, of which physical adsorption is heavily favored due to its easy process and environment friendliness. [61,62] Jalali et al [63] and Johari et al [64] used cellulose derived from sunflower stalks and coconut husk wastes, for the adsorption of cadmium and lead metal ions, and mercury metal ions, respectively.…”

Section: Removal Of Heavy Metal Ionsmentioning

confidence: 99%

Nanocellulose as a sustainable material for water purification

et al. 2020

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The demand for purified water has been increasing day by day. More feasible technologies, including membrane filtration, adsorbents, and so forth have emerged out to be more efficient and cheaper over conventional industrial methods. Nanocellulose, being biodegradable, nontoxic, and sustainable nanofiller exhibits excellent mechanical properties, high aspect ratio, high surface area, and more importantly tunable surface chemistry; is a potential candidate to be employed for water purification. Composite membranes and films for water filtration, constituting of biopolymers have gathered immense interest lately. Compared with its unmodified form, the functionalized NC enhances the compatibility with the matrix and readily forming strong network structures; essential for the formation of channels for better adsorption of impurities and higher water flux. This review highlights some of the recent studies dedicated to making and testing of nanofiltration membranes prepared using nanocellulose and its different functionalized derivatives.

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Preferential adsorption of Cu in a multi-metal mixture onto biogenic elemental selenium nanoparticles

Cited by 65 publications

References 37 publications

Biomolecular composition of capping layer and stability of biogenic selenium nanoparticles synthesized by five bacterial species

Biomolecular composition of capping layer and stability of biogenic selenium nanoparticles synthesized by five bacterial species

Phosphorylated nanocellulose papers for copper adsorption from aqueous solutions

Nanocellulose as a sustainable material for water purification

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