Differentiation of carbon black from black carbon using a ternary plot based on elemental analysis

Copyright © 2020 Elsevier Ltd. All rights reserved..

Carbon black (CB) is composed of engineered nanoparticles that are commercially produced by partial combustion of hydrocarbons. It is mainly used as a reinforcing agent in vehicle tires. Although the potential health effects of CB have been investigated extensively, some toxicological reports interchange CB with black carbon (BC), which has similar features, thereby misusing the term. BC is an undesirable byproduct of the incomplete combustion of fuels. Therefore, there is a need to differentiate CB from the unintentionally produced nanomaterials (BC) in nano-toxicity, environmental, and human health studies. To distinguish clearly CB from BC, it is important to find the key parameters from several characteristics of two substances. The fundamental physicochemical properties of commercial CB and naturally formed BC were conducted. Based on the elemental analysis, we found three key factors, which could be used to differentiate the CB from BC. And thus, herein, we propose a ternary plot of the aH/C-log(C/b)-1/H combination for use in differentiating CB from BC. The plot of the 100H/C-log(C/10)-1/H combination of elemental ratios separated the CB domain from the BC domain symmetrically. The effectiveness of the ternary chart was validated using 37 samples (nine samples in this work, 25 sample results taken from references studies, and three samples from the field). Therefore, the ternary plot could be used as a prescreening tool for distinguishing CB from BC.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:264

Enthalten in:

Chemosphere - 264(2021), Pt 1 vom: 15. Feb., Seite 128511

Sprache:

Englisch

Beteiligte Personen:

Hong, Junghyun [VerfasserIn]
Moon, Haejoo [VerfasserIn]
Kim, Jisue [VerfasserIn]
Lee, Byung-Cheun [VerfasserIn]
Kim, Geun-Bae [VerfasserIn]
Lee, Hyejin [VerfasserIn]
Kim, Younghun [VerfasserIn]

Links:

Volltext

Themen:

7440-44-0
Air Pollutants
Black carbon
Carbon
Carbon black
Elemental analysis
Journal Article
Soot
Ternary plot

Anmerkungen:

Date Completed 22.12.2020

Date Revised 22.12.2020

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.chemosphere.2020.128511

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM316022497