期刊
BIORESOURCES
卷 11, 期 4, 页码 10433-10447出版社
NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI
DOI: 10.15376/biores.11.4.10433-10447
关键词
Activated carbon; Pyrolyzed pinewood char; KOH; H2O2; H3PO4
资金
- National Institute of Food and Agriculture, U.S. Department of Agriculture, and McIntire Stennis [1008126]
- U.S. Department of Agriculture (USDA)
- Research, Education, and Economics (REE)
- Agriculture Research Service (ARS)
- Administrative and Financial Management (AFM)
- Financial Management and Accounting Division (FMAD)
- Grants and Agreements Management Branch (GAMB) [5B-0202-4-001]
- agency of the United States Government
- MAFES/FWRC Director's Fellowship Awards at Mississippi State University (MSU)
- NIFA [912701, 1008126] Funding Source: Federal RePORTER
Activated carbon was prepared from pyrolyzed pinewood char using KOH, H3PO4, H2O2, and heat-only treatments. Activated carbon prepared by the heat-only treatment had a total surface area of 233.2 m(2)/g, a total pore volume of 0.138 cm(3)/g, a microporous surface area of 129.9 m(2)/g, and a microporous volume of 0.07 cm(3)/g. The most significant improvement of pore properties for the chemically treated pinewood char was obtained by the KOH treatment, which produced a total surface area of 1124.4 m(2)/g, a total pore volume of 0.723 cm(3)/g, a microporous surface area of 923.6 m(2)/g, and a microporous volume of 0.485 cm(3)/g. After the H3PO4 treatment, pinewood char had a total surface area of 455.5 m(2)/g, a total pore volume of 0.251 cm(3)/g, a microporous surface area of 393.3 m(2)/g, and a microporous volume of 0.211 cm(3)/g. The least significant improvement was obtained from the H2O2 treatment, which produced a total surface area of 363.0 m(2)/g, a total pore volume of 0.202 cm(3)/g, a microporous surface area of 271.5 m(2)/g, and a microporous volume of 0.141 cm(3)/g. Transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR) were performed to compare separate treatment stabilities and functional group properties.
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