Authors:
W. Tsai Chia Nan University of Pharmacy and Science Department of Environmental Engineering and Health Tainan 717 Taiwan

Search for other papers by W. Tsai in
Current site
Google Scholar
PubMed
Close
,
C. Chang National Taiwan University Graduate Institute of Environmental Engineering Taipei 106 Taiwan

Search for other papers by C. Chang in
Current site
Google Scholar
PubMed
Close
,
S. Lee National Taiwan University Graduate Institute of Environmental Engineering Taipei 106 Taiwan

Search for other papers by S. Lee in
Current site
Google Scholar
PubMed
Close
, and
S. Wang National Taiwan University Graduate Institute of Environmental Engineering Taipei 106 Taiwan

Search for other papers by S. Wang in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

The thermochemical decomposition of agricultural by-product corn cob impregnated with ZnCl2, as a precursor material for producing the activated carbons, was investigated by thermogravimetric (TG) analysis at the heating rate of 5 and 10°C min–1 under a controlled atmosphere of nitrogen (60 ml min–1). The appearance of a peak in the differential thermogravimetric plot (DTG) in the temperature range of 400–600°C is significantly related to the extent of impregnation. The DTG curve of the sample impregnated with the optimal impregnation ratio of 175% (i.e., the ratio of ZnCl2 mass of 87.5 g in the 200 cm3 of water to corn cobmass of 50 g), which yields an optimal BET surface area of the activated carbon and displays a DTG peak at about 500°C. This may be partially due to the intense chemical activation and results in the formation of a porous structure in the activated solid residue. This observation is also in close agreement with previous results at optimal pyrolysis temperatures of 500°C and with similar experimental conditions. In order to support the results in the TG-DTG analysis, the development of pore structure of the resulting activated carbons thus obtained by previous studies was also examined and explained using the scanning electron microscopy (SEM).

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
May 2024 2 0 0
Jun 2024 2 0 0
Jul 2024 19 0 0
Aug 2024 22 0 0
Sep 2024 7 0 0
Oct 2024 72 0 0
Nov 2024 8 0 0