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Gd3+ Encapsulation on 2D-g-C3N4 Nanostructure for Spintronics and Ultrasound Assisted Photocatalytic Applications:
Saikat Kumar Kuila1, Deepak Kumar Gorai1, Sandeep Agarwal2
1Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, West Bengal, 721302, India.
Small (Weinheim an Der Bergstrasse, Germany)
|April 8, 2024
Summary
Gadolinium-doped 2D graphitic carbon nitride nanosheets exhibit room-temperature ferromagnetism and high efficiency for degrading methyl orange in wastewater. This magnetic material shows promise for wastewater treatment and spintronics.
Area of Science:
- Materials Science
- Nanotechnology
- Physical Chemistry
Background:
- Atomically thin two-dimensional (2D) semiconductors offer tunable band structures and stability, making them promising for optoelectronics and magneto-optics.
- Defect engineering in 2D materials is crucial for enhancing their properties and functionalities.
Purpose of the Study:
- To synthesize Gd3+/2D-g-C3N4 nanosheets (NS) via chemisorption for defect enrichment.
- To investigate the magnetic properties and catalytic efficiency of the synthesized material.
- To explore potential applications in wastewater treatment and spintronics.
Main Methods:
- Chemisorption for synthesizing Gd3+/2D-g-C3N4 NS.
- Material characterizations (surface area, defect concentration).
- Density Functional Theory (DFT) simulations for electronic structure analysis.
- Vibrating-sample magnetometer (VSM) for magnetic property assessment.
- Ultrasound-assisted visible-light-driven photodegradation experiments.
- Liquid chromatography-mass spectrometry (LC-MS) for mechanism elucidation.
Main Results:
- Gd3+ incorporation enhanced surface area and defect concentration in 2D-g-C3N4 NS.
- DFT and VSM confirmed room-temperature ferromagnetism and enhanced saturation magnetization (Ms).
- The magnetic catalyst achieved 98% remediation efficiency for methyl orange (MO) degradation.
- LC-MS and DFT studies elucidated the degradation mechanism.
Conclusions:
- Gd3+/2D-g-C3N4 NS is a stable magnetic nanocatalyst with significant potential.
- The material demonstrates high efficiency in pollutant degradation.
- The synthesized material is suitable for wastewater treatment and spintronics applications.
