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  • Nanostructured Titanium Dioxide Photoelectrocatalysis Based Analytical Systems for Determination of Organic Compounds

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    LiL_2011_02Thesis.pdf (2.936Mb)
    Author(s)
    Li, Lihong
    Primary Supervisor
    Zhang, Eddie
    Zhao, HuiJun
    Year published
    2011
    Metadata
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    Abstract
    Chemical oxygen demand (COD) is an important water quality parameter for estimating organic pollution. Conventional COD method has several drawbacks including lengthy assay time, complex procedure and requiring the use of highly toxic and expensive chemicals. Considerable efforts have been devoted to improve conventional COD methods. In this regard, the PeCODTM method has been the most noticeable technique. This method utilizes the superior oxidation power of UV illuminated nanostructured titanium dioxide (TiO2) to achieve organic degradation while simultaneously enabling quantification of the COD value by directly measuring ...
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    Chemical oxygen demand (COD) is an important water quality parameter for estimating organic pollution. Conventional COD method has several drawbacks including lengthy assay time, complex procedure and requiring the use of highly toxic and expensive chemicals. Considerable efforts have been devoted to improve conventional COD methods. In this regard, the PeCODTM method has been the most noticeable technique. This method utilizes the superior oxidation power of UV illuminated nanostructured titanium dioxide (TiO2) to achieve organic degradation while simultaneously enabling quantification of the COD value by directly measuring the photocatalytic oxidation current/charge that originated from photocatalytic degradation of organics. The method is an absolute method that requires no calibration. It is an environmentally friendly method that requires/generates no toxic reagent. It is a simple and rapid method for sensitive and accurate COD determination. However, PeCODTM method needs to be improved in few aspects for more broad applications, especially for the field-based applications. These include the portability and high degradation efficiency for those oraganic compounds with difficulty to be oxidized. This study is therefore focused on improving the portability and applicability of PeCODTM method.
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    Thesis Type
    Thesis (PhD Doctorate)
    Degree Program
    Doctor of Philosophy (PhD)
    School
    Griffith School of Environment
    DOI
    https://doi.org/10.25904/1912/99
    Copyright Statement
    The author owns the copyright in this thesis, unless stated otherwise.
    Item Access Status
    Public
    Subject
    Chemical oxygen demand
    Organic pollution
    Water quality
    Titanium dioxide
    Photoelectrocatalysis
    Organic compounds
    Publication URI
    http://hdl.handle.net/10072/365630
    Collection
    • Theses - Higher Degree by Research

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