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Meeting Materials Science & Technology 2019
Symposium Nanotechnology for Energy, Environment, Electronics, Healthcare and Industry
Presentation Title Dialysate Regeneration by Efficient Urea Decomposition with TiO2 Nanowire Photoelectrochemical Cell
Author(s) Guozheng Shao, Yushi Zang, Bruce J. Hinds
On-Site Speaker (Planned) Guozheng Shao
Abstract Scope Over 2 million End Stage Renal Disease patients receive dialysis to sustain life. Conventional hemodialysis removes urea and other metabolic wastes by running ~120 L of dialysate in each session, which is typically 3-4 hours and 3 times a week. The intermittent character of hemodialysis results in large fluctuations in blood metabolite concentrations. A photoelectrochemical cell with TiO2/FTO anode, 10 mM urea/0.15 M NaCl electrolyte, and 4 mg/cm2 Pt black loaded carbon paper cathode was characterized for urea decomposition efficiency. Under 4 mW/cm2 illumination using 365 nm LED with 40% quantum efficiency, the device yielded a photocurrent density of ~ 1 mA/cm2, corresponding to 40% quantum efficiency in urea decomposition per incident photon. A device with ~0.23 m2 area and a current draw of 11 A is able to decompose a daily 15 g urea production sufficient to regenerate dialysate, thus making a portable dialysis device feasible.
Proceedings Inclusion? Planned: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

c-VACNT, New Nano-to-Macro Material Platform with a Rich Application Potential
Challenges & Solutions: New Nano-materials For Renewable Energy Applications
Characterization of Nanophase Carbon Infused Copper Alloys and Thin Films
Designing Silicon Nanostructures to Harvest Energy: From Asymmetric Electron Ratchets to Decuple-junction Photovoltaics
Dialysate Regeneration by Efficient Urea Decomposition with TiO2 Nanowire Photoelectrochemical Cell
Direct Contact Membrane Distillation (DCMD) using a Composite PVDF Electrospun Nanofiber Membrane for Water Desalination Application
Electrical Properties of Samarium Substituted Cobalt Nano- ferrites for Energy Applications
Electrochemical and Structural Study of 10GDC Electrolyte for SOFC Applications at Intermediate Temperature via Conventional Sintering
Elucidating the Power of Nanoinclusion and Porous Site Scattering Mechanisms in Enhancing Thermoelectric ZT
Green Synthesis of Functionalized Nanoresins for Effective and Sustainable Water Purification
Inhibition of Gram-Negative and Fungi Strains of Microbes Inducing Microbiologically-Influenced-Corrosion by Tectona grandis Capped Fe-Nanoparticle
Ionic Transport in Alkali Intercalated C60 Molecular Solids: Applications for Electrochemical Energy Storage
Modeling Dialium guineense Mediated Zn-Nanoparticle Growth Inhibition on Gram-Positive Microbes Inducing Microbiologically-Influenced-Corrosion
Nanoengineered Materials for Energy and BioMedical Systems (NEMS)
Nanostructured Aluminum Alloys for Power Generation Applications
Preparation and Electrochemical Performance of CuS-CoS Double-layer Composite
Self-Assembled Li3V2(PO4)3/Reduced Graphene Oxide Multilayer Nanocomposite Prepared by Sequential Adsorption for Lithium Ion Storage
Solid-state Additive Manufacturing of Metal Matrix Nanocomposites Using Additive Friction Stir Deposition
Synthesis, Characterization, and Catalytic Activity of Bismuth Ruthenium Oxide Nanoparticles for Oxygen Evolution and Reduction
Ternary Hierarchical Microstructures for Supercapacitor Applications
The Preparation and Electrochemical Performance of Tin based Material:SnTe
Thermally Tailoring the Crystal Structure and Defect Disorder in Titanium Oxide Nanotubes for Enhanced Electrocatalysis While Maintaining the Nanostructure
Using Energy Filtering to Change the Thermoelectric Design Paradigm

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