FTIR and kinetic modelling of fungal biosorbent Trichoderma asperellum for the removal of Pb(II), Cu(ii), Zn(II) and Cd(II) from multi-metal solutions

Carrie Siew Fang Sim, Adeline Su Yien Ting

    Research output: Contribution to journalArticleResearchpeer-review

    3 Citations (Scopus)

    Abstract

    Metal biosorption potential of Pb(II), Cu(II), Zn(II) and Cd(II) by Trichoderma asperellum in multi-metal solutions was compared against single-metal solutions to mimic occurrence in natural wastewater. Significantly lower metal removal was observed in multi-metal solutions compared to single-metal solutions. Antagonistic metal interaction may have led to poor metal removal in multi-metal solution (equilibrium achieved after 360 min) although biosorption occurred more rapidly in single-metal solution (equilibrium detected as early as 120 min). Preference for metals was consistent in both metal solutions, preferring Pb(II) > Cu(II) > Zn(II) ≥ Cd(II), albeit lower levels removed in multi-metal solutions. Binding of metals involved functional groups such as amino (–NH2), carbonyl (C=O) and sulphur (–S) discovered from ATR-FTIR analysis. Metal biosorption by T. asperellum in both metal solutions was mainly via a rate-limiting chemisorption, with compliance to pseudo-second order kinetic.

    Original languageEnglish
    Pages (from-to)167-171
    Number of pages5
    JournalDesalination and Water Treatment
    Volume63
    DOIs
    Publication statusPublished - Feb 2017

    Keywords

    • ATR-FTIR analysis
    • Biosorption
    • Kinetic modelling
    • Multi-metal solution
    • Single-metal solution
    • Trichoderma asperellum

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