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

Pozzolans01:21

Pozzolans

112
Pozzolans are siliceous or aluminous materials blended with Portland cement. They interact with the calcium hydroxide produced during the hydration of Portland cement and contribute to improved strength and durability of concrete. The pozzolanic activity, a measure of a pozzolan's effectiveness, is typically assessed using the strength activity index, as defined in ASTM C 618-93, which calculates the ratio of the compressive strength of cement mixtures with and without pozzolan.
Fly ash is...
112
Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

459
Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
459
Flame Photometry: Lab01:16

Flame Photometry: Lab

246
In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
246
Sample Preparation for Analysis: Advanced Techniques01:08

Sample Preparation for Analysis: Advanced Techniques

343
Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
343
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

618
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
618
Filtration00:53

Filtration

824
Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...
824

You might also read

Related Articles

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

Sort by
Same author

Addition of bevacizumab enhances antitumor activity of erlotinib against non-small cell lung cancer xenografts depending on VEGF expression.

Cancer chemotherapy and pharmacology·2014
Same author

Functional MRI-guided microsurgery of intracranial arteriovenous malformations: study protocol for a randomised controlled trial.

BMJ open·2014
Same author

[Danshensu delays the senescence of rat aortic endothelial cells via activation of SIRT1-SOD pathway].

Sheng li xue bao : [Acta physiologica Sinica]·2014
Same author

Cytosolic carboxypeptidase CCP6 is required for megakaryopoiesis by modulating Mad2 polyglutamylation.

The Journal of experimental medicine·2014
Same author

[Scoring formula research and equivalence evaluation of mandarin quick speech-in-noise test materials in mainland China].

Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery·2014
Same author

Association between CRP gene polymorphisms and the risk of preeclampsia in Han Chinese women.

Genetic testing and molecular biomarkers·2014

Related Experiment Video

Updated: Jul 2, 2025

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
12:05

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

Published on: October 10, 2013

15.5K

Research on plasma modified fly ash denitration.

Zhan-Feng Qi1, Shuo Wang1, Xiu-Li Guo2

  • 1College of Mechanical Engineering, Dalian University, Dalian, 116622, China.

Scientific Reports
|February 22, 2024
PubMed
Summary

Modified fly ash effectively removes nitrogen oxides (NOx) via plasma treatment. Key factors influencing NOx removal include basic groups, adsorption pore size, input power, and discharge gap, with chemical adsorption being the primary mechanism.

Keywords:
Characterization analysisDenitration mechanismFly ashPlasma

More Related Videos

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

12.4K
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

12.4K

Related Experiment Videos

Last Updated: Jul 2, 2025

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
12:05

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

Published on: October 10, 2013

15.5K
Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
09:41

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

Published on: June 9, 2016

12.4K
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

12.4K

Area of Science:

  • Environmental Science
  • Chemical Engineering
  • Materials Science

Background:

  • Fly ash, a byproduct of coal combustion, presents disposal challenges.
  • Modified fly ash can be utilized for environmental remediation, such as NOx removal.
  • Plasma technology offers a promising approach for treating industrial emissions.

Purpose of the Study:

  • To investigate the denitration rate of modified fly ash using dielectric barrier plasma.
  • To analyze the influence of reactor and process parameters on NOx removal efficiency.
  • To elucidate the denitration mechanism on the surface of modified fly ash.

Main Methods:

  • Utilized a dielectric barrier plasma reactor for denitration experiments.
  • Employed orthogonal experimental design to study various parameters.
  • Characterized modified fly ash using SEM, BET, XRD, Boehm titration, and FTIR.
  • Applied variance analysis and linear regression to analyze experimental data.

Main Results:

  • Input power and discharge gap significantly affect the denitration rate.
  • Basic groups positively correlate with denitration rate, while adsorption pore size and acidic groups show negative correlation.
  • Linear regression model explained 78.9% of the variation in denitration rate.
  • Chemical adsorption is the dominant denitration mechanism, contributing approximately 60.86%.

Conclusions:

  • Optimizing input power and discharge gap is crucial for enhancing NOx removal by modified fly ash.
  • Surface properties, particularly basic groups and pore structure, play a significant role in the plasma-assisted denitration process.
  • Plasma treatment of modified fly ash is an effective method for NOx abatement, primarily through chemical adsorption.