Browsing by Author "Hira Ashfaq"

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    Green Synthesis of Silver Nanocomposites from Powders of Various Medicinal Plants and Study of their Antimicrobial Potential
    (Library Information Services COMSATS University Islamabad Lahore Campus, 2020-02-17) Hira Ashfaq; FA18-R06-003; Dr. Lubna Sherin; LHR TP 5960
    The application of plant waste materials in the synthesis of nanomaterials is an efficient and inexpensive method to minimize the practice of expensive chemicals. It is because of the reason that it gives rise to green approaches that abstain from the addition of toxic chemicals into the environment. The research work focuses on the synthesis of silver nanocomposites using powders of various therapeutically reported plants and the study of their potential regdaring chromium metal decontamination. For characterization, the techniques of X-ray Diffraction XRD and Fourier Transform Infrared Spectroscopy FT-IR has been used. Waste water treatment is performed for adsorptiove removal of chromium. Optimization is carried out using batch methods for various parameters like, pH, adsorbent dose and time of contact. Isothermal and kinetics study have shown that removal of chromium using silver nanocomposite was a feasible process, following langmuir adsorption model and pseudo second order reaction kinetics.