Preparation of activated carbon by chemical activation and its in vitro adsorption efficacy tests for paraquat
The effects of different activation temperature on the pore size and surface morphology of activated carbon produced by H3PO4 (30%) chemical activation were studied in this paper. Well developed pore size and highest surface area observed on activated carbon at 6000C were determined by Scanning E...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Kaerntner Botanikzentrum, Klagenfurt, Austria
2014
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/36922/ http://irep.iium.edu.my/36922/ http://irep.iium.edu.my/36922/1/Wulfenia_June_2014.pdf |
| Summary: | The effects of different activation temperature on the pore size and surface morphology of activated
carbon produced by H3PO4 (30%) chemical activation were studied in this paper. Well developed pore
size and highest surface area observed on activated carbon at 6000C were determined by Scanning
Electron Microscope and Brunauer, Emmett and Teller (BET) method. The highest BET surface area
was 1491 m2g-1 observed with sample HEAC-2 (highly efficient activated carbon -2). The adsorption
efficacy of activated carbon for paraquat was also investigated and compared with commercially
available activated carbon. The study shows that the amount of paraquat adsorbed was 3.62 mgL-1 for
produced activated carbon and 3.42mg L-1 for commercially available activated carbon. The adsorbing
capacity of activated carbon (produced and commercially available) for paraquat increased when it
was suspended in NaCl (0.9%) solution. In the presence of NaCl solution, the amount of paraquat
adsorbed increased from 3.62mg L-1 to 4.68mg L-1 for produced activated carbon and 3.42 mg L-1 to
4.18mg L-1 for commercially available activated carbon. |
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