Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 1285-1296 |
| Number of pages | 12 |
| Journal | Journal of Cleaner Production |
| Volume | 162 |
| Early online date | 18 Jun 2017 |
| DOIs | |
| Publication status | Published - 20 Sep 2017 |
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Assessment of Miscanthus × giganteus derived biochar as copper and zinc adsorbent : study of the effect of pyrolysis temperature, pH and hydrogen peroxide modification. / Cibati, Alessio; Foereid, Bente; Bissessur, Ajay; Hapca, Simona M.
In: Journal of Cleaner Production, Vol. 162, 20.09.2017, p. 1285-1296.Research output: Contribution to journal › Article
TY - JOUR
T1 - Assessment of Miscanthus × giganteus derived biochar as copper and zinc adsorbent
T2 - study of the effect of pyrolysis temperature, pH and hydrogen peroxide modification
AU - Cibati, Alessio
AU - Foereid, Bente
AU - Bissessur, Ajay
AU - Hapca, Simona M.
PY - 2017/9/20
Y1 - 2017/9/20
N2 - In this work, experimental and modelling investigations were conducted on biochars pyrolyzed at 350 °C and 600 °C, to determine the effect of pyrolysis temperature, hydrogen peroxide activation and pH on copper and zinc removal, in comparison with commercially available activated carbons. Characterization of biochars was performed by BET surface area, elemental analysis and FTIR spectroscopy. Experiments results demonstrated that biochar pyrolyzed at 600 °C adsorbed both copper and zinc more efficiently than biochar pyrolyzed at 350 °C. Chemical activation by H2O2 increased the removal capacity of biochar pyrolyzed at 350 °C. All investigated biochars showed a stronger affinity for copper retention, with a maximum adsorption capacity of 15.7 mg/g while zinc was 10.4 mg/g. The best adsorption performances were obtained at pH 5 and 6. Langmuir adsorption isotherm described copper adsorption process satisfactorily, while zinc adsorption was better described by Freundlich isotherm.
AB - In this work, experimental and modelling investigations were conducted on biochars pyrolyzed at 350 °C and 600 °C, to determine the effect of pyrolysis temperature, hydrogen peroxide activation and pH on copper and zinc removal, in comparison with commercially available activated carbons. Characterization of biochars was performed by BET surface area, elemental analysis and FTIR spectroscopy. Experiments results demonstrated that biochar pyrolyzed at 600 °C adsorbed both copper and zinc more efficiently than biochar pyrolyzed at 350 °C. Chemical activation by H2O2 increased the removal capacity of biochar pyrolyzed at 350 °C. All investigated biochars showed a stronger affinity for copper retention, with a maximum adsorption capacity of 15.7 mg/g while zinc was 10.4 mg/g. The best adsorption performances were obtained at pH 5 and 6. Langmuir adsorption isotherm described copper adsorption process satisfactorily, while zinc adsorption was better described by Freundlich isotherm.
U2 - 10.1016/j.jclepro.2017.06.114
DO - 10.1016/j.jclepro.2017.06.114
M3 - Article
VL - 162
SP - 1285
EP - 1296
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
SN - 0959-6526
ER -