Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Phase Transitions: Melting and Freezing

Phase Transitions: Melting and Freezing

Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...

Transmission Electron Microscopy

Transmission Electron Microscopy

In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400 keV in...

Mechanisms of Heat Transfer I

Mechanisms of Heat Transfer I

Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.

Metal-Semiconductor Junctions

Metal-Semiconductor Junctions

The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The semiconductor's...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Chromatographic Estimation of Curcumin and Parthenolide Using a Validated RP-HPLC Method.

Current drug research reviews·2026

Same author

Water Cages as Chemical Reactors: VUV Photolysis of Dimethyl Ether Clathrate Hydrate Thin Films in Ultrahigh Vacuum.

The journal of physical chemistry letters·2026

Same author

Controlling Zero-Field Splitting in Molecular Spin Qubits via Conjugation with Insights into Optical Addressability.

The journal of physical chemistry. A·2026

Same author

Secondary Guest-Driven Nucleation of N<sub>2</sub>O Clathrate Hydrate in Amorphous Ice Mixture under Ultrahigh Vacuum.

The journal of physical chemistry letters·2025

Same author

Novel Assembling of Furano-Fused Azepinone Derivatives for Inhibition of Acetylcholinesterase Responsible for Alzheimer's Disease: Synthesis, Molecular Docking, DFT, In Vitro, and In Silico Studies.

ACS chemical neuroscience·2025

Same author

Mechanistic insights into plasmon-driven hot electron transfer from silver nanoclusters to PFAS: interplay of size and electronic structure.

Nanoscale·2025

Search research articles

Related Experiment Video

Updated: Jul 2, 2026

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

Realizing Direct Hot-Electron Transfer from Metal Nanoparticles to Per- and Polyfluoroalkyl Substances.

P K Verma¹, Samir Kumar Nayak², Khushboo Bhardwaj²

¹Center for Atomistic Modelling and Materials Design, Indian Institute of Technology Madras, Chennai 600036, India.

The Journal of Physical Chemistry Letters

|April 30, 2025

Summary

Noble metal nanoparticles can degrade persistent per- and polyfluoroalkyl substances (PFAS) by directly transferring hot electrons. This process efficiently breaks down PFAS without external heat, offering a new mitigation strategy.

More Related Videos

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Published on: April 18, 2019

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation

Published on: August 15, 2019

Related Experiment Videos

Last Updated: Jul 2, 2026

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Published on: April 18, 2019

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation

Published on: August 15, 2019

Area of Science:

Environmental Chemistry
Materials Science
Computational Chemistry

Background:

Per- and polyfluoroalkyl substances (PFAS) are persistent, hazardous synthetic chemicals with widespread industrial and consumer applications.
The environmental persistence and recalcitrance of PFAS, due to strong carbon-fluorine bonds, necessitate effective degradation strategies.
Plasmonic properties of noble metal nanoparticles (NPs) show potential for catalytic applications, but atomistic mechanisms are not fully understood.

Purpose of the Study:

To investigate the atomistic mechanisms of plasmon-driven degradation of PFAS by noble metal NPs.
To elucidate the real-time dynamics of plasmon formation, hot-carrier generation, and electron transfer from NPs to PFAS.
To demonstrate the efficiency of direct hot-carrier transfer for PFAS degradation.

Main Methods:

Real-time time-dependent density functional theory (TD-DFT) simulations were employed.
Simulations tracked plasmon formation and hot-carrier generation dynamics.
Ehrenfest dynamics simulations were used to model the direct hot-carrier transfer and subsequent PFAS degradation.

Main Results:

Direct hot-electron transfer from metal NPs to PFAS was observed.
Transferred hot electrons efficiently degraded PFAS without external thermal baths.
An atomistic understanding of plasmon-induced direct hot-carrier transfer and PFAS degradation was provided.

Conclusions:

Plasmonic noble metal NPs can directly degrade PFAS via hot-electron transfer.
This mechanism offers an efficient, self-contained method for PFAS remediation.
The findings provide a strong basis for utilizing plasmonic NPs in PFAS mitigation efforts.