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Application of Genetically Encoded Fluorescent Nitric Oxide (NO•) Probes, the geNOps, for Real-time Imaging of NO• Signals in Single Cells
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Ni

Parikshit Samjubhai Paredi1, Madhu Pandey1, Ezhava Manu Manohar1

  • 1Institute of Infrastructure, Technology, Research and Management (IITRAM), Maninagar, Ahmedabad, Gujarat, India.

Environmental Science and Pollution Research International
|June 3, 2023
PubMed
Summary
This summary is machine-generated.

A novel tetranuclear nickel complex immobilized on sulfonic acid functionalized MCM-48 efficiently removes toxic dyes crystal violet and methylene blue from water. This reusable composite achieves over 99% adsorption in just 15 minutes.

Keywords:
Acid functionalized MCM-48Crystal violetDye adsorptionMethylene blueTetranuclear Ni complex

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Area of Science:

  • Materials Science
  • Environmental Chemistry
  • Nanotechnology

Background:

  • Toxic cationic dyes like crystal violet (CV) and methylene blue (MB) pose significant threats to water quality.
  • Effective and sustainable methods for dye removal from wastewater are crucial for environmental protection.

Purpose of the Study:

  • To synthesize and characterize a novel tetranuclear nickel complex, [Ni4(LH)4]·CH3CN (1).
  • To immobilize the nickel complex onto sulfonic acid functionalized MCM-48 (MCM-48-SO3H) for enhanced dye adsorption.
  • To investigate the efficiency of the resulting composite material for the removal of CV and MB dyes from aqueous solutions.

Main Methods:

  • Synthesis and characterization of the tetranuclear nickel complex using techniques such as NMR, ICP, and FT-IR.
  • Preparation of the composite material by immobilizing the nickel complex onto MCM-48-SO3H.
  • Adsorption studies to evaluate dye removal efficiency, optimizing parameters like adsorbent dosage, temperature, pH, and contact time.
  • Characterization of the composite material using SEM, BET, and powder XRD.

Main Results:

  • The synthesized [Ni4(LH)4]·CH3CN complex was successfully incorporated into the MCM-48-SO3H matrix.
  • The composite material demonstrated high adsorption efficiency (>99%) for both CV and MB dyes.
  • Optimal adsorption conditions were identified as 0.2 mg/ml adsorbent dosage, 10 ppm dye concentration, pH 6-7, 25 °C, and a contact time of 15 minutes.
  • The adsorbent material exhibited excellent reusability, maintaining high adsorption capacity over three cycles.

Conclusions:

  • The Ni4 complex integrated MCM-48-SO3H composite is a highly effective and robust adsorbent for toxic cationic dyes.
  • The material offers rapid and efficient removal of CV and MB, exceeding 99% removal in a short contact time.
  • This novel adsorbent presents a promising solution for wastewater treatment due to its high efficiency and reusability.