Development of platinum supported on single-walled carbon nanotubes by deposition-precipitation for microbial fuel cells

Water Science and Technology : a Journal of the International Association on Water Pollution Research
P PusomjitN Thepsuparungsikul

Abstract

Microbial fuel cells (MFCs) are an ecologically friendly technology that can recover electricity and simultaneously treat wastewater. Among all the influential factors, cathode material and catalyst play a crucial role in electricity production and oxygen reduction. In this study, Pt nanocatalysts deposited on single-walled carbon nanotubes (Pt/SWCNTs) were synthesized by the deposition-precipitation (DP) method under optimal conditions. The results show that DP might be a promising method for the preparation of Pt/SWCNTs due to its simple, cost-effective and time-saving procedure, in addition to being highly efficient at creating small Pt particles (0.9 nm) that were very uniformly distributed. The synthesized Pt/SWCNTs suspension was spray-coated on to carbon cloth and then used as a cathode for MFCs. The electricity generation of MFCs equipped with a Pt/SWCNTs cathode was evaluated in terms of open circuit voltage (0.6954 V), internal resistance (63.3 Ω•m2) and maximum power density (2,022 mW/m2). The chemical oxygen demand removal, biological oxygen demand removal, total dissolved solids removal, total suspended solids removal and silver recovery was satisfactory at 84.5%, 74.0%, 45.7%, 60.0% and 99.0%, respectively. Theref...Continue Reading

References

Sep 27, 2006·Environmental Science & Technology·Bruce E LoganKorneel Rabaey
Mar 29, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Nopphawan PhonthammachaiTimothy J White
May 14, 2010·Environmental Science & Technology·Annemiek Ter HeijneHubertus V M Hamelers
Mar 3, 2012·Bioresource Technology·Hu-Chun TaoWei-Min Wu
May 9, 2014·Water Science and Technology : a Journal of the International Association on Water Pollution Research·N ThepsuparungsikulH Y Ng

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Citations

Jun 27, 2019·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Milad KadivarianMohsen Nasr Esfahany

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