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Title: Enhanced Capacities of Mixed Fatty Acid-Modified Sawdust Aggregators for Remediation of Crude Oil Spill

Journal Article · · ACS Omega
ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [1];  [2]
  1. Materials Sciences, Pacific Northwest National Laboratory, 902 Battelle Blvd, Richland, Washington 99352, United States
  2. Marine Science Laboratory, Pacific Northwest National Laboratory, 1529 West Sequim Bay Road, Sequim, Washington 98382, United States
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Mixed fatty acid-modified aggregators have been developed as potential crude oil sorbents. Cheap pine wood flour was first modified with oleic acid (OA) and further modified with second fatty acid by a leaving group chemistry, where a surface hydroxyl group is first replaced by p-toluenesulfonyl (p-Ts) group and a fatty acid forms a covalent bond on sawdust surface through esterification at the elevated temperature (55 C). Two OA-modified base materials, pine/OA-106 and pine/OA-124 with different OA-coverage were first prepared and the second fatty acids with C3, C6, C8, C10, C12, C14, or C16 alkyl chains were applied to cover the rest of surface hydroxyl groups. The crude oil sorption capacities of the mixed fatty acid-modified aggregators were studied and compared with those of the base materials. The results showed that mixed fatty acid-modified aggregators increased up to 45.6% more crude oil sorption than those of OA-modified base materials. A correlation between surface property and sorption capacity was studied by moisture sorption, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), 13C cross polarization and magic angle spinning nuclear magnetic resonance (CP/MAS NMR), thermal gravimetric analysis (TGA), and scanning electron microscopy (SEM).

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); PNNL Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1489889
Alternate ID(s):
OSTI ID: 1507395; OSTI ID: 1512783
Report Number(s):
PNNL-SA-135555
Journal Information:
ACS Omega, Journal Name: ACS Omega Vol. 4 Journal Issue: 1; ISSN 2470-1343
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Figures / Tables (9)

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Related Subjects

Superhydrophobic
Sorption capacity
Crude oil
Aggregator
fatty acids
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
carbonyl compounds (organic)
granular materials
phase
remediation
water purification