Shaping the Future of the Neurotransmitter Sensor: Tailored CdS Nanostructures for State-of-the-Art Self-Powered Photoelectrochemical Devices

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(5), P. 2684 - 2694

Published: May 2, 2024

Semiconductor-based photoelectrochemical (PEC) test protocols offer a viable solution for developing efficient individual health monitoring by converting light and chemical energy into electrical signals. However, slow reaction kinetics electron–hole complexation at the interface limit their practical application. Here, we reported triple-engineered CdS nanohierarchical structures (CdS NHs) modification scheme including morphology, defective states, heterogeneous structure to achieve precise of neurotransmitter dopamine (DA) in plasma noninvasive body fluids. By precisely manipulating Cd–S precursor, achieved control over ternary NHs obtained well-defined layered self-assembled through surface carbon treatment. The integration defect states thin layer effectively established carrier directional transfer pathways, thereby enhancing sites improving conversion efficiency. microelectrode fabricated demonstrated remarkable negative response toward DA, enabling development miniature self-powered PEC device quantification human saliva. Additionally, utilization density functional theory calculations elucidated structural characteristics DA state CdS, thus establishing crucial theoretical groundwork optimizing polymerization process DA. present study offers potential engineering approach high efficiency semiconductors as well proposing novel concept designing sensitive testing strategies.

Language: Английский

---

Exploring progress in binary and ternary nanocomposites for photoelectrochemical water splitting: A comprehensive review

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216180 - 216180

Published: Sept. 6, 2024

Language: Английский

---

High-Entropy Alloy-Enhanced ZnCdS Nanostructure Photocatalysts for Hydrogen Production

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 362, P. 124763 - 124763

Published: Oct. 30, 2024

Language: Английский

---

Pressure‐Assisted Ni 3d–S 3p Hybridization within Targeted In–S Layer for Enhanced Photocatalytic Hydrogen Production

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Solar-driven hydrogen production is significant for achieving carbon neutrality but limited by unsatisfactory surface catalytic reaction kinetics. Layer regulation can impact carrier transmission or behavior, the specific effects on oxygen evolution (OER HER) remain unclear, and atomic layer level modulation maxing HER challenging. Here distinct roles of modulated Zn-S In-S layers in ZnIn2S4 (ZIS) OER HER, respectively, are disentangled. Moreover, extensive characterizations computational results demonstrate that stressful environments enable individual introduce Ni into rather than easily alterable layer, creating deeper hybridized electronic states 3d-S 3p, optimizing H* adsorption/desorption, maximizing benefits HER. Consequently, optimized ZIS exhibited a photocatalytic rate up to 18.19 mmol g-1 h-1, ≈32 times higher pristine ZIS. This investigation expands application scenarios ultrasonic technology inspires other precise control types, such as defects crystal plane engineering, etc.

Language: Английский

---

Properties and modulation strategies of ZnIn₂S₄ for photoelectrochemical water splitting: opportunities and prospects

Energy Materials, Journal Year: 2025, Volume and Issue: 5(7)

Published: April 1, 2025

The global energy crisis has driven significant research into renewable sources, and photoelectrochemical (PEC) water splitting stands out as one of the most promising solutions for hydrogen production. Among various materials developed PEC splitting, ternary metal sulfides, particularly ZnIn2S4, have garnered considerable attention due to their unique combination electronic, optical, chemical properties. This paper presents a comprehensive analysis structure properties explores modification strategies ZnIn2S4-based photoanodes, discusses application in splitting. Furthermore, we address challenges limitations photoanodes highlight prospects future development.

Language: Английский

---

In situ preparation of MoS2/Sv-ZnIn2S4/ZnS composites with directional charge transfer pathway and boosted photocatalytic hydrogen evolution activity

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 128, P. 319 - 328

Published: April 19, 2025

Language: Английский

---

Customized interfacial electronic interactions in protonated g-C3N4/ZnIn2S4 S-scheme 2D/2D edge-to-face heterostructures for boosted CO2 photoconversion

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163193 - 163193

Published: April 1, 2025

Language: Английский

---

Simultaneously Tuning Charge Separation and Surface Reaction Kinetics on ZnIn2S4 Photoanode by P-Doping for Highly Efficient Photoelectrochemical Water Splitting and Urea Oxidation

Separations, Journal Year: 2024, Volume and Issue: 11(9), P. 268 - 268

Published: Sept. 13, 2024

ZnIn2S4 nanosheets are a promising photoanode for driving photoelectrochemical (PEC) hydrogen fuel production; nevertheless, poor charge separation and sluggish surface reaction kinetics hinder its PEC performance to an extreme degree. Herein, facile element doping strategy (i.e., P element) was developed obtain the desired photoanode. As result, ZnIn2S4-P (ZIS-P5) exhibits remarkable photocurrent density of 1.66 mA cm−2 at 1.23 V versus reversible electrode (VRHE) much lower onset potential 0.12 vs. RHE water oxidation. Careful electrochemical analysis confirms that sulfur vacancies (Sv) not only facilitate hole transfer, but also boost kinetics. Finally, “killing two birds with one stone” goal can be achieved. Moreover, optimized presents high urea oxidation, obtaining 4.13 RHE. This work provides eco-friendly, simple effective method realize highly efficient solar-to-hydrogen conversion.

Language: Английский

---

Defect-engineered WO /ZnIn2S4 Z-scheme heterojunction boosting photocatalytic H2 production via photothermal coupling

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

---

Enhanced Photoelectrochemical Water Splitting Performance of BiVO₄ Photoanode by Integrating Electron-Rich Polyoxometalate into Metal–Organic Framework

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(37), P. 15266 - 15276

Published: Aug. 22, 2024

Bismuth vanadate (BiVO4) photoanodes face challenges such as rapid electron–hole recombination, slow water oxidation kinetics, and poor surface stability. To tackle these problems, this study incorporates a Keggin-type polyoxometalate (POM) anion, characterized by high negative charge the absence of precious metals, into MIL-101(Cr)/BiVO4 composite photoanode. The POM anion effectively enhances separation injection within BiVO4 photoanode under minimal optimization conditions separating photogenerated holes from MIL-101 framework. NiPOM/MIL-101(Cr)/BiVO4 achieves photocurrent density 4.5 mA cm–2 at 1.23 V vs reversible hydrogen electrode (RHE), approximately 4 times higher than that pristine BiVO4. Furthermore, oxygen evolution reaction yield reaches 36.2 μmol after 90 min reaction, with faradic efficiencies consistently exceeding 84%, indicating predominant involvement carriers in photoelectrochemical (PEC) splitting. At an applied potential RHE, bias photon-to-current efficiency (ABPE) 1.16%. transfer mechanism photochemical process reveals uniform distribution NiPOM cocatalyst hydrophilic zeolite cage MIL-101(Cr) promotes formation additional chemically active sites facilitates electron its Ni site to surface, significantly boosting density. This suppresses dissolution V5+ ions stability during decomposition. work presents novel strategy for designing POM-based molecular synergistic catalysts enhance PEC splitting, thereby facilitating efficient conversion solar energy clean fuel.

Language: Английский

---