Detail publikace

An eco-friendly process for zerovalent bismuth nanoparticles synthesis

Reverberi, A.P. Varbanov, P.S. Lauciello, S. Salerno, M. Fabiano, B.

Originální název

An eco-friendly process for zerovalent bismuth nanoparticles synthesis

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

A two-pot bismuth nanoparticle synthesis based on a combination of a bottom-up method and a disaggregation technique is proposed. These steps are sequential in time and are operated in an aqueous and organic solvent, respectively. In the first phase, a cementation process with aluminium and zinc as sacrificial metals in compact form is carried out using mannitol, saponin and maltodextrin as eco-friendly capping agents for bismuth nanoparticles. In the second phase, a wet ball-stirring process allows obtaining a primary particles release in propylene glycol with a satisfactory stability. The products are characterized by dynamic light scattering and transmission electron microscopy for the size and by X-ray diffraction for both size and chemical composition. The diameters of bismuth nanoparticles obtained using both zinc and aluminium as reductants lie in the range of 10–120 nm independently of the capping agents. With respect to conventional one-pot processes using sacrificial metals in powder, this technique allows obtaining a high purity metallic bismuth at the end of the cementation step without requiring further purification treatments, thus avoiding a waste of chemical reagents in view of a cleaner production and sustainability. All stages of preparation are carried out at room temperature for a better energy saving and safety management. This process may represent a valid alternative to standard techniques based on noxious reductants or high temperature synthesis, thus promoting a shift towards a green nanoparticle synthesis.

Klíčová slova

Bismuth; Bottom-up; Cementation; Green chemistry; Inherent safety; Nanoparticles; Aluminum; Cementing (shafts); Energy conservation; Environmental protection; High resolution transmission electron microscopy; Light scattering; Light transmission; Metal nanoparticles; Nanoparticles; Pollution control; Sustainable development; Transmission electron microscopy; Zinc; Disaggregation techniques; High-temperature synthesis; Inherent safety; Nanoparticle synthesis; Purification treatments; Synthesis (chemical)

Autoři

Reverberi, A.P.; Varbanov, P.S.; Lauciello, S.; Salerno, M.; Fabiano, B.

Vydáno

10. 10. 2018

Nakladatel

Elsevier Ltd

ISSN

0959-6526

Periodikum

Journal of Cleaner Production

Ročník

198

Číslo

198

Stát

Spojené království Velké Británie a Severního Irska

Strany od

37

Strany do

45

Strany počet

9

BibTex

@article{BUT151484,
  author="Reverberi, A.P. and Varbanov, P.S. and Lauciello, S. and Salerno, M. and Fabiano, B.",
  title="An eco-friendly process for zerovalent bismuth nanoparticles synthesis",
  journal="Journal of Cleaner Production",
  year="2018",
  volume="198",
  number="198",
  pages="37--45",
  doi="10.1016/j.jclepro.2018.07.011",
  issn="0959-6526"
}