We report on a silicon-based photoelectrochemical cell that integrates a formate dehydrogenase from Thiobacillus sp. (TsFDH) to convert CO2 to formate using water as an electron donor under visible light irradiation and an applied bias. Our current study suggests that the deliberate integration of biocatalysis to a light-harvesting platform could provide an opportunity to synthesize valuable chemicals with the use of earth-abundant materials and sustainable resources.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c6cc04661d | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Covalently Linking Reduced Graphene Oxide Facilitated Electrodeposition of MoS on Silicon Pyramidal Photocathode To Enhance Hydrogen Evolution.
Langmuir
June 2024
School of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China.
In recent years, increasing attention has been paid to photoelectrochemical (PEC) hydrogen production owing to the utilization of sustainable solar energy and its promising performance. Silicon-based composites are generally considered ideal materials for PEC hydrogen production. However, slow reaction kinetics and poor stability are still key factors hindering the development of silicon-based photoelectrocatalysts.
View Article and Find Full Text PDFOne-step construction of multiplexed enzymatic biosensors using light-addressable electrochemistry on a single silicon photoelectrode.
Biosens Bioelectron
June 2024
Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China; School of Future Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Institute of Medical Engineering, Translational Medicine Institute, Xi'an Jiaotong University, Xi'an, 710061, China. Electronic address:
The multiplexed detection of metabolites in parallel within a single biosensor plate is sufficiently valuable but also challenging. Herein, we combine the inherent light addressability of silicon with the high selectivity of enzymes, for the construction of multiplexed photoelectrochemical enzymatic biosensors. To conduct a stable electrochemistry and reagentless biosensing on silicon, a new strategy involving the immobilization of both redox mediators and enzymes using an amide bond-based hydrogel membrane was proposed.
View Article and Find Full Text PDFMonolithic silicon for high spatiotemporal translational photostimulation.
Nature
February 2024
The James Franck Institute, The University of Chicago, Chicago, IL, USA.
Electrode-based electrical stimulation underpins several clinical bioelectronic devices, including deep-brain stimulators and cardiac pacemakers. However, leadless multisite stimulation is constrained by the technical difficulties and spatial-access limitations of electrode arrays. Optogenetics offers optically controlled random access with high spatiotemporal capabilities, but clinical translation poses challenges.
View Article and Find Full Text PDFNumerical simulation study of high-efficiency silicon-based cell destined for photoelectrochemical wastewater treatment.
Environ Sci Pollut Res Int
November 2024
Faculty of Sciences, Mohammed V University in Rabat, 10010, Rabat, Morocco.
Photoelectrochemical setups based on semiconductor photoelectrodes are known for their effectiveness in wastewater treatment, powered by solar energy, which is a renewable and sustainable source. These systems require semiconductor photocatalysts with excellent light-absorbing properties and high stability in aqueous environments. In this regard, silicon is highly investigated in solar cells thanks to its narrow bandgap, making it a potential solar harvester.
View Article and Find Full Text PDFEnhancing photoelectrochemical CO reduction with silicon photonic crystals.
Front Chem
December 2023
College of Optical Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, China.
The effectiveness of silicon (Si) and silicon-based materials in catalyzing photoelectrochemistry (PEC) CO reduction is limited by poor visible light absorption. In this study, we prepared two-dimensional (2D) silicon-based photonic crystals (SiPCs) with circular dielectric pillars arranged in a square array to amplify the absorption of light within the wavelength of approximately 450 nm. By investigating five sets of n + p SiPCs with varying dielectric pillar sizes and periodicity while maintaining consistent filling ratios, our findings showed improved photocurrent densities and a notable shift in product selectivity towards CH (around 25% Faradaic Efficiency).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!