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

Microbial Leaching01:27

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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 formed in...
Radical Oxidation of Allylic and Benzylic Alcohols01:21

Radical Oxidation of Allylic and Benzylic Alcohols

Activated manganese(IV) oxide can selectively oxidize allylic and benzylic alcohols via a radical intermediate mechanism. Primary allylic alcohols are oxidized to aldehydes, while secondary allylic alcohols yield ketones. The redox reaction of potassium permanganate with an Mn(II) salt such as manganese sulfate (under either alkaline or acidic conditions), followed by thorough drying, yields the oxidizing agent: activated MnO2. While MnO2 is insoluble in the solvents used for the reaction, the...
Microbes and Other Elemental Cycles01:24

Microbes and Other Elemental Cycles

Microbial activity plays a pivotal role in the biogeochemical cycling of iron and manganese, especially at the redox gradients characteristic of stratified aquatic environments. These cycles are driven by microbial transformations between oxidized and reduced forms of the metals, allowing organisms to exploit them for metabolic energy and structural purposes.Iron Cycling Across Redox GradientsIn neutral, oxygen-rich surface waters, iron is predominantly found in its oxidized, insoluble ferric...
Sample Preparation for Analysis: Advanced Techniques01:08

Sample Preparation for Analysis: Advanced Techniques

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...
Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...

You might also read

Related Articles

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

Sort by
Same author

Divergent Three-Component Assembly of Densely Functionalized Dibenzofurans via ZnCl<sub>2</sub>-Mediated Cascade Annulation.

Organic letters·2026
Same author

Antifungal efficacy of a novel type of nanosalt against human fungal pathogens and its antifungal mechanisms.

Applied microbiology and biotechnology·2026
Same author

A network meta-analysis of the performance of acupoint stimulation therapy in improving fatigue, neurological function, and activities of daily living in patients with multiple sclerosis.

Frontiers in neurology·2026
Same author

DNA cube-gated ratiometric ECL/SERS biosensor for APE1 via HCR-driven interfacial reconstruction.

Biosensors & bioelectronics·2026
Same author

Frailty and associated factors in women aged 65 years and older with breast cancer: a cross-sectional study.

BMC geriatrics·2026
Same author

The vicious cycle: unraveling the interplay between α-synuclein, mitochondrial dysfunction, and neuroinflammation in Parkinson's disease.

Journal of neurology·2026
Same journal

A hybrid data-driven machine learning method for mapping trace metals in urban soils: Integrating source apportionment to enable high accuracy prediction.

Journal of hazardous materials·2026
Same journal

Microwave co-pyrolysis of oily sludge and corn stalk under different microwave absorbents.

Journal of hazardous materials·2026
Same journal

Linking vegetation types to molecular signatures of dissolved organic matter and their distinct complexation mechanisms with cadmium.

Journal of hazardous materials·2026
Same journal

From legacy to emerging polycyclic aromatic compounds: Profiling in micro-nanoplastics emissions from plastic incineration.

Journal of hazardous materials·2026
Same journal

Molecular insights into sludge-derived organics transformation during magnetic Fe<sub>3</sub>O<sub>4</sub>-catalyzed wet air oxidation.

Journal of hazardous materials·2026
Same journal

Process-based interpretation of groundwater arsenic mobility via oxidative and reductive dissolution in a complex mine-waste system.

Journal of hazardous materials·2026
See all related articles

Related Experiment Video

Updated: Jun 17, 2026

Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of Manganese(II) Acetylacetonate
09:02

Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of Manganese(II) Acetylacetonate

Published on: June 18, 2020

Manganese removal from aqueous solution using a thermally decomposed leaf.

Zhenze Li1, Shigeyoshi Imaizumi, Takeshi Katsumi

  • 1GSGES, Kyoto University, Sakyo, Kyoto 606-8501, Japan. lazyhero@live.cn

Journal of Hazardous Materials
|January 12, 2010
PubMed
Summary
This summary is machine-generated.

Partially decomposed natural leaf effectively removes toxic manganese (II) from wastewater, achieving high adsorption capacities. This eco-friendly method offers a promising solution for environmental manganese contamination challenges.

More Related Videos

Synthesis of Persistent Luminescent Nanoparticles for Rewritable Displays and Illumination Applications
07:12

Synthesis of Persistent Luminescent Nanoparticles for Rewritable Displays and Illumination Applications

Published on: September 13, 2024

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition
10:45

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition

Published on: February 5, 2022

Related Experiment Videos

Last Updated: Jun 17, 2026

Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of Manganese(II) Acetylacetonate
09:02

Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of Manganese(II) Acetylacetonate

Published on: June 18, 2020

Synthesis of Persistent Luminescent Nanoparticles for Rewritable Displays and Illumination Applications
07:12

Synthesis of Persistent Luminescent Nanoparticles for Rewritable Displays and Illumination Applications

Published on: September 13, 2024

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition
10:45

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition

Published on: February 5, 2022

Area of Science:

  • Environmental Science
  • Materials Science
  • Chemistry

Background:

  • Manganese (II) is a vital industrial material but poses environmental risks due to its toxicity to aquatic life and humans.
  • Effective treatment of manganese-contaminated wastewater is crucial for environmental protection.

Purpose of the Study:

  • To evaluate the performance of a novel adsorbent derived from partially decomposed natural leaf for manganese (II) removal.
  • To investigate the adsorption mechanism and influencing factors for manganese (II) removal.

Main Methods:

  • Isothermal adsorption studies were conducted to determine adsorption capacity.
  • Experiments varied adsorbent dosage, pH, temperature, and equilibration time.
  • Spectroscopic analysis (e.g., FTIR, SEM-EDX) was used to elucidate adsorption mechanisms.

Main Results:

  • The natural leaf adsorbent demonstrated high manganese (II) adsorption capacity (61-66 mg g⁻¹).
  • Optimal adsorption occurred rapidly (within 30 min) at pH 4.0.
  • The adsorption process was endothermic and spontaneous, driven by chemisorption involving phosphate, ferrous oxide, and carbonate groups.

Conclusions:

  • Partially decomposed natural leaf is an effective and sustainable adsorbent for manganese (II) removal from wastewater.
  • The adsorption mechanism involves multiple functional groups on the adsorbent surface.
  • This method presents a promising, practical approach for industrial wastewater treatment.