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Title: The Impact of Sampling Medium and Environment on Particle Morphology

Journal Article · · Atmosphere (Basel)
DOI:https://doi.org/10.3390/atmos8090162· OSTI ID:1436253
 [1];  [2];  [3];  [4];  [2]
  1. Nanjing Univ. (China). Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering; New Jersey Inst. of Technology, Newark, NJ (United States). Dept. of Chemistry and Environmental Science
  2. New Jersey Inst. of Technology, Newark, NJ (United States). Dept. of Chemistry and Environmental Science; New Jersey Inst. of Technology, Newark, NJ (United States). Dept. of Chemical Biological and Pharmaceutical Engineering
  3. Nanjing Univ. (China). Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)

Sampling on different substrates is commonly used in laboratory and field studies to investigate the morphology and mixing state of aerosol particles. Our focus was on the transformations that can occur to the collected particles during storage, handling, and analysis. Particle samples were prepared by electrostatic deposition of size-classified sodium chloride, sulfuric acid, and coated soot aerosols on different substrates. The samples were inspected by electron microscopy before and after exposure to various environments. For coated soot, the imaging results were compared against mass-mobility measurements of airborne particles that underwent similar treatments. The extent of sample alteration ranged from negligible to major, depending on the environment, substrate, and particle composition. We discussed the implications of our findings for cases where morphology and the mixing state of particles must be preserved, and cases where particle transformations are desirable.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1436253
Report Number(s):
BNL-203592-2018-JAAM; ATMOCZ
Journal Information:
Atmosphere (Basel), Vol. 8, Issue 12; ISSN 2073-4433
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

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Cited By (1)

Preface: Morphology and Internal Mixing of Atmospheric Particles journal July 2018