A preparation method for the treatment of Cr(VI) composite adsorbent Ca-AC
Keyword(s):
The effects of weight ratio of Eucalyptus and CaCl2, carbonization temperature and carbonization time on the composite adsorbent (Ca-AC) were studied. The best conditions for composite adsorbent (Ca-AC) were obtained: the weight ratio of CaCl2 to the eucalyptus sawdust was 2:1; the carbonization temperature was 650 °C; the carbonization time was 80 min. The Ca-AC yield reached 28.88%; the Cr(VI) adsorption value was 131.03 mg±g-1. The morphology and structure of the adsorbents were characterized. The results showed that the specific surface area of Ca-AC can reach 713 m2±g-1. The carboxyl, hydroxyl, lactones groups and amino could be determined on the activated carbon surface.
Comparative Analysis on Chemical Composition and Charcoal Characterization of Two Miscanthus Species
2011 ◽
Vol 415-417
◽
pp. 1265-1272
Keyword(s):
Ph Value
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2015 ◽
Vol 749
◽
pp. 17-21
◽
2021 ◽
Vol 15
(2)
◽
pp. 131-144
Keyword(s):
2019 ◽