Journal
ANALYTICAL LETTERS
Volume 52, Issue 5, Pages 772-789Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00032719.2018.1495223
Keywords
Almond shell; Fourier-transform infrared spectroscopy; microwave and conventional heating; scanning electron microscopy; thermogravimetric analysis
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Funding
- Siirt University Research Foundation [2017-SIUFEB-93]
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Activated carbon production from almond shells using phosphoric acid activation agent was achieved by applying both conventional heating and microwave heating in succession. The morphology and surface properties of activated carbon were studied using thermogravimetric and differential gravimetric analysis, Fourier-transform infrared spectroscopy, scanning electron microscopy, and Brunauer-Emmett-Teller analysis. A surface area of 1128 m(2)/g was achieved by optimizing the microwave power (500 W), microwave application time (15 minutes), conventional heating time (45 minutes), conventional heating temperature (500 degrees C), and the phosphoric acid:sample ratio (0.7:1). An adsorption capacity of methylene blue of 148 mg/g and an iodine value of 791 mg/g was obtained for the prepared activated carbon.
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