Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Controlled-Potential Coulometry: Electrolytic Methods01:17

Controlled-Potential Coulometry: Electrolytic Methods

135
Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential is precisely regulated using a potentiostat. Platinum working electrodes are utilized for positive potentials, while mercury pool electrodes are favored for extremely negative potentials. The platinum counter electrode is separated from the analyte using a membrane or salt bridge to avoid interference in the analysis.
The chosen potential...
135
Bioremediation00:46

Bioremediation

18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K

You might also read

Related Articles

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

Sort by
Same author

Gradient-Driven Galvanic Effect Enables Self-Sustained Peroxymonosulfate Activation in a Stacked Flow Reactor.

Environmental science & technology·2026
Same author

Simultaneous Pollutant Removal and Ag Recovery in an Expanded Water Self-Purification System by Mo-Sn Quantum Dots.

Environmental science & technology·2025
Same author

Enhanced Electric Field via Multicomponent Synergistic Coordination on Single-Atom Catalysts for Antibiotic Mineralization in Water.

Environmental science & technology·2025
Same author

From Single-Atom to Dual-Atom: A Universal Principle for the Rational Design of Heterogeneous Fenton-like Catalysts.

Environmental science & technology·2025
Same author

H<sub>2</sub>O<sub>2</sub> Triggering Electron-Directed Transfer of Emerging Contaminants over Asymmetric Nano Zinc Oxide Surfaces for Water Self-Purification Expansion.

JACS Au·2025
Same author

Simultaneous Emerging Contaminant Removal and H<sub>2</sub>O<sub>2</sub> Generation Through Electron Transfer Carrier Effect of Bi─O─Ce Bond Bridge Without External Energy Consumption.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2024

Related Experiment Video

Updated: Jun 5, 2025

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site
05:29

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site

Published on: July 24, 2018

7.6K

Endogenous Substances Utilization for Water Self-Purification Amplification Driven by Nonexpendable H2O2 over a

Chao Lu1, Chun Hu1, Junmei Wu1

  • 1Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou 510006, China.

Environmental Science & Technology
|December 16, 2024
PubMed
Summary

This study enhances natural water self-purification by using a novel catalyst to activate dissolved oxygen (DO) and degrade pollutants efficiently. This low-energy method significantly improves water quality with minimal hydrogen peroxide (H2O2) consumption.

Keywords:
micro-potential differencenonexpendable H2O2oxygen activationpollutant electron utilizationself-purification amplification

More Related Videos

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment
11:38

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Published on: December 3, 2019

7.6K
Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods
05:41

Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods

Published on: February 11, 2016

9.5K

Related Experiment Videos

Last Updated: Jun 5, 2025

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site
05:29

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site

Published on: July 24, 2018

7.6K
Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment
11:38

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Published on: December 3, 2019

7.6K
Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods
05:41

Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods

Published on: February 11, 2016

9.5K

Area of Science:

  • Environmental Science
  • Catalysis
  • Water Treatment

Background:

  • Natural water self-purification is limited by slow mass transfer between dissolved oxygen (DO) and stable pollutants.
  • Current remediation methods often require substantial energy and resources, posing environmental challenges.

Purpose of the Study:

  • To enhance the natural self-purification of water by amplifying the effect of dissolved oxygen (DO).
  • To develop a low-energy catalytic strategy for efficient pollutant degradation.

Main Methods:

  • Utilized a DRC catalyst with a micro-potential difference surface to trigger enhanced self-purification.
  • Lowered activation energy barriers for endogenous substances and opened mass transfer channels over a Cu-ZnO surface.
  • Investigated the activation of DO by pollutant electrons and energy.

Main Results:

  • Achieved rapid degradation of pollutants with minimal hydrogen peroxide (H2O2) consumption (≤2.6%).
  • Demonstrated efficient activation of natural DO and enhanced mass transfer.
  • Successfully degraded the endocrine disruptor BPA into harmless small molecule alcohols and acids.

Conclusions:

  • The developed low-energy catalytic strategy significantly amplifies natural water self-purification.
  • This method offers an efficient and sustainable approach for degrading stable pollutants and improving water quality.
  • The catalyst effectively utilizes pollutant energy to activate DO, minimizing the need for additional chemical oxidants.