Assessment of Miscanthus × giganteus derived biochar as copper and zinc adsorbent

Study of the effect of pyrolysis temperature, pH and hydrogen peroxide modification

Alessio Cibati (Lead / Corresponding author), Bente Foereid, Ajay Bissessur, Simona Hapca

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)1285-1296
    Number of pages11
    JournalJournal of Cleaner Production
    Volume162
    Early online date18 Jun 2017
    DOIs
    Publication statusPublished - 20 Sep 2017

    Fingerprint

    Hydrogen peroxide
    Adsorbents
    pyrolysis
    hydrogen peroxide
    Pyrolysis
    Zinc
    zinc
    copper
    adsorption
    Copper
    Adsorption
    temperature
    Chemical activation
    isotherm
    Temperature
    Adsorption isotherms
    Activated carbon
    Isotherms
    FTIR spectroscopy
    Spectroscopy

    Keywords

    • Biochar
    • Metal adsorption
    • Isotherms
    • Adsorbent
    • Copper
    • Zinc

    Cite this

    @article{490b4b83b44e48629ab69a16a36c41d7,
    title = "Assessment of Miscanthus × giganteus derived biochar as copper and zinc adsorbent: Study of the effect of pyrolysis temperature, pH and hydrogen peroxide modification",
    abstract = "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.",
    keywords = "Biochar, Metal adsorption, Isotherms, Adsorbent, Copper, Zinc",
    author = "Alessio Cibati and Bente Foereid and Ajay Bissessur and Simona Hapca",
    note = "This study was supported by an International Fellowship funded by the University of Rome “La Sapienza” and by the Short Term Scientific Mission (CSCM) within the COST (COST- STSM-ECOST-STSM-TD1107-100613-032222) scientific programme on Biochar as an option for sustainable resource management.",
    year = "2017",
    month = "9",
    day = "20",
    doi = "10.1016/j.jclepro.2017.06.114",
    language = "English",
    volume = "162",
    pages = "1285--1296",
    journal = "Journal of Cleaner Production",
    issn = "0959-6526",
    publisher = "Elsevier",

    }

    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 (Lead / Corresponding author); Foereid, Bente; Bissessur, Ajay ; Hapca, Simona.

    In: Journal of Cleaner Production, Vol. 162, 20.09.2017, p. 1285-1296.

    Research output: Contribution to journalArticle

    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

    N1 - This study was supported by an International Fellowship funded by the University of Rome “La Sapienza” and by the Short Term Scientific Mission (CSCM) within the COST (COST- STSM-ECOST-STSM-TD1107-100613-032222) scientific programme on Biochar as an option for sustainable resource management.

    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.

    KW - Biochar

    KW - Metal adsorption

    KW - Isotherms

    KW - Adsorbent

    KW - Copper

    KW - Zinc

    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 -