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

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

507
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
507
Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

3.1K
The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...
3.1K

You might also read

Related Articles

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

Sort by
Same author

The Forgotten Fetal Channel: Guidewire Entry Into Umbilical Vein During Central Line Placement in a Neonate.

A&A practice·2026
Same author

Responses and adaptations of plants to abiotic stress: transcriptional regulation of secondary metabolic pathways, metabolomics, and nanobiological approaches.

Frontiers in genetics·2026
Same author

Smart In Situ-Forming Ocular Therapeutics for Dry Eye Disease: Bridging Biomaterials, Nanotechnology, and Clinical Translation.

AAPS PharmSciTech·2026
Same author

Artificial intelligence integration in medical imaging data.

Progress in molecular biology and translational science·2026
Same author

Spurious arterial waveform on invasive blood pressure monitoring before arterial cannulation.

Indian journal of anaesthesia·2026
Same author

Trends in dengue incidence and disease burden in South Asia with special reference to India: Insights from the global burden of disease data, 1990-2021.

Journal of infection and public health·2026

Related Experiment Video

Updated: Aug 20, 2025

Improved Heterojunction Quality in Cu2O-based Solar Cells Through the Optimization of Atmospheric Pressure Spatial Atomic Layer Deposited Zn1-xMgxO
08:14

Improved Heterojunction Quality in Cu2O-based Solar Cells Through the Optimization of Atmospheric Pressure Spatial Atomic Layer Deposited Zn1-xMgxO

Published on: July 31, 2016

12.3K

Coupling ZnO with CuO for efficient organic pollutant removal.

Sapna Yadav1, Nutan Rani1, Kalawati Saini2

  • 1Department of Chemistry, Miranda House, University of Delhi, Patel Chest Marg, New Delhi, 110007, India.

Environmental Science and Pollution Research International
|November 22, 2022
PubMed
Summary

Green synthesized zinc oxide/copper oxide (ZnO/CuO) nanocomposites exhibit superior photocatalytic activity for degrading toxic organic dyes under sunlight. This eco-friendly approach offers efficient and stable dye degradation, showcasing potential for environmental remediation.

Keywords:
BiosynthesisMorphologiesOrganic dyesPhotocatalytic degradationZnO/CuO nanocomposite

More Related Videos

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis
10:44

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Published on: February 12, 2019

10.0K
Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
08:18

Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application

Published on: October 3, 2015

15.3K

Related Experiment Videos

Last Updated: Aug 20, 2025

Improved Heterojunction Quality in Cu2O-based Solar Cells Through the Optimization of Atmospheric Pressure Spatial Atomic Layer Deposited Zn1-xMgxO
08:14

Improved Heterojunction Quality in Cu2O-based Solar Cells Through the Optimization of Atmospheric Pressure Spatial Atomic Layer Deposited Zn1-xMgxO

Published on: July 31, 2016

12.3K
Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis
10:44

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Published on: February 12, 2019

10.0K
Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
08:18

Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application

Published on: October 3, 2015

15.3K

Area of Science:

  • Materials Science and Engineering
  • Environmental Science and Technology
  • Nanotechnology

Background:

  • Photodegradation of toxic organic dyes using semiconductor heterojunctions is a critical area of research for environmental remediation.
  • Developing cost-effective, simple, and environmentally friendly synthesis methods for efficient photocatalysts is highly desirable.

Purpose of the Study:

  • To synthesize and comparatively evaluate the photocatalytic degradation performance of ZnO/CuO nanocomposites, ZnO nanoparticles, and CuO nanoparticles.
  • To investigate the structural, optical, and morphological properties of the synthesized nanomaterials.
  • To assess the efficiency of ZnO/CuO nanocomposites in degrading various toxic organic dyes under sunlight irradiation.

Main Methods:

  • Biosynthesis of ZnO and CuO nanoparticles using Ficus benghalensis leaf extract.
  • Synthesis of ZnO/CuO nanocomposites via a simple mortar pestle crushing/milling method.
  • Characterization using PXRD, SEM, TEM, BET, FESEM, EDS, FTIR, and UV-Vis spectroscopy.
  • Photocatalytic degradation experiments using methylene blue (MB), rhodamine B (RhB), and methyl orange (MO) under sunlight.

Main Results:

  • ZnO/CuO nanocomposites demonstrated significantly higher photocatalytic degradation efficiencies for MB, RhB, and MO compared to individual ZnO and CuO nanoparticles.
  • The ZnO/CuO nanocomposite achieved 99.13% degradation of MB, 80.21% of RhB, and 67.22% of MO within 180 minutes.
  • The synthesized nanomaterials, particularly the ZnO/CuO nanocomposite, exhibited excellent reusability and stability over three degradation cycles.
  • FTIR and TOC analyses confirmed the mineralization of dyes, indicating complete degradation.

Conclusions:

  • Green synthesized ZnO/CuO nanocomposites are highly effective photocatalysts for the degradation of toxic organic dyes under sunlight.
  • The enhanced photocatalytic activity is attributed to the heterojunction structure and synergistic effects between ZnO and CuO.
  • This eco-friendly approach offers a promising solution for wastewater treatment and environmental remediation.