TY - JOUR
T1 - Effects of anode materials in electricity generation of microalgal-biophotovoltaic system - part I
T2 - Natural biofilm from floating microalgal aggregation
AU - Chin, Jia Chun
AU - Khor, Wei Han
AU - Chong, William Woei Fong
AU - Wu, Yun Ta
AU - Kang, Hooi Siang
N1 - Publisher Copyright:
© 2022
PY - 2022/1
Y1 - 2022/1
N2 - A biophotovoltaic (BPV) system is an emerging photo-bio-electrochemical technology that promises bioelectricity generation through the photosynthesis of exoelectrogenic microorganisms. An algal pool or floating photobioreactor with algae cultivation medium is a potential electron source for sustainable operation of such BPV device. Therefore, bioelectricity generation from algae cultivation medium should be studied to demonstrate this value-added feature. In natural conditions, self-aggregated microalgae form biofilms on the medium surface. One technical concern is that previous studies emphasized the role of anode materials and biofilm formation for the enhancement of electron transmission in BPV device, whereas cell performance by free-floating microalgae medium and natural biofilm still has research value. Hence, cell performance under different anode materials is a crucial decision-making factor of the system with a natural biofilm. In this paper, the experiment was repeated three times to investigate the bioelectrical power generation of BPV device in natural conditions from using three different anode materials, namely graphite, indium tin oxide (ITO)-coated glass, and ITO-coated plastic. In the experiments, BPV devices with ITO anode experienced power overshoot problems by the use of natural floating Spirulina (Arthrospira) platensis aggregation. ITO-coated glass- and plastic-based BPV devices produced maximum power densities of 0.118 mW/m2 and 0.215 mW/m2, respectively. The findings are expected to contribute to further understanding on the correlation of these parameters with regards to power generation by BPV device.
AB - A biophotovoltaic (BPV) system is an emerging photo-bio-electrochemical technology that promises bioelectricity generation through the photosynthesis of exoelectrogenic microorganisms. An algal pool or floating photobioreactor with algae cultivation medium is a potential electron source for sustainable operation of such BPV device. Therefore, bioelectricity generation from algae cultivation medium should be studied to demonstrate this value-added feature. In natural conditions, self-aggregated microalgae form biofilms on the medium surface. One technical concern is that previous studies emphasized the role of anode materials and biofilm formation for the enhancement of electron transmission in BPV device, whereas cell performance by free-floating microalgae medium and natural biofilm still has research value. Hence, cell performance under different anode materials is a crucial decision-making factor of the system with a natural biofilm. In this paper, the experiment was repeated three times to investigate the bioelectrical power generation of BPV device in natural conditions from using three different anode materials, namely graphite, indium tin oxide (ITO)-coated glass, and ITO-coated plastic. In the experiments, BPV devices with ITO anode experienced power overshoot problems by the use of natural floating Spirulina (Arthrospira) platensis aggregation. ITO-coated glass- and plastic-based BPV devices produced maximum power densities of 0.118 mW/m2 and 0.215 mW/m2, respectively. The findings are expected to contribute to further understanding on the correlation of these parameters with regards to power generation by BPV device.
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U2 - 10.1016/j.matpr.2022.03.138
DO - 10.1016/j.matpr.2022.03.138
M3 - Article
AN - SCOPUS:85127558952
SN - 2214-7853
VL - 65
SP - 2970
EP - 2978
JO - Materials Today: Proceedings
JF - Materials Today: Proceedings
ER -