Year of Award

2016

Degree Type

Thesis

Degree Name

Master of Philosophy (MPhil)

Department

Department of Chemistry.

Principal Supervisor

Cai, Zongwei

Keywords

Chlorella pyrenoidosa, Analysis, Microbial fuel cells, Biomass chemicals, Biosensors, Technological innovations

Language

English

Abstract

Live green microalgae Chlorella pyrenoidosa was introduced in the anode of microbial fuel cell (MFC) to act as an electron donor. The electrogenic capability of algae Chlorella pyrenoidosa was investigated in two models of algal microbial fuel cells (MFCs) constructed with carbon electrodes and no mediator. The mechanism was studied by results of ATP inhibitor (Resveratrol) and protonophore (2, 4-dinitrophenol), which supporting the important role of mitochondria in electricity generation. The results of different light intensity and algae concentration indicate that low concentration of 106 (OD680nm) and low light intensity (2500 Lux) generated higher electricity. In the oxygen controlled study, it was found that oxygen generated by algae in anode was a limiting factor for electricity generation. Electricity generation was observed in two chamber algae MFC lasting at least for 24 hours. Results might provide a platform for the development of self-sustainable algal culturing microbial fuel cell (MFC). Electricity was found to increase in response to 4-nitrophenol (4NP) and 4-nitroanaline (4NA) for both measurements of current and open circle voltage (OCV). The positive response of algae to 4NP in increasing the 4NP production and electricity generation in MFC proposed the possible application in the detection of E.coli, as 4NP is involved in the intermediate step of the detection process. Results indicate Algae MFC was suitable for the detection of E. coli. of concentration higher than 106 using OCV measurement. Keywords: Electricity generation, Chlorella pyrenoidosa, Microbial fuel cell.

Comments

Thesis submitted to the Department of Chemistry. ; Principal supervisor: Professor Cai Zong Wei. ; Thesis (M.Phil.)--Hong Kong Baptist University, 2015.

Bibliography

Includes bibliographical references.

Copyright

The author retains all rights to this work. The author has signed an agreement granting HKBU a non-exclusive license to archive and distribute their thesis.



Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.