A5022989327- Carbon and Quantum Dots Applications
- Electrochemical sensors and biosensors
- Nanocluster Synthesis and Applications
- Advanced biosensing and bioanalysis techniques
- Graphene and Nanomaterials Applications
- Adsorption and biosorption for pollutant removal
- Polymer Nanocomposites and Properties
- Polymer crystallization and properties
- Mercury impact and mitigation studies
- Analytical Chemistry and Sensors
- Nanocomposite Films for Food Packaging
- Electrochemical Analysis and Applications
- Membrane Separation and Gas Transport
- Membrane-based Ion Separation Techniques
- Molecular Junctions and Nanostructures
- Membrane Separation Technologies
- Microbial Fuel Cells and Bioremediation
- Conducting polymers and applications
- Environmental Chemistry and Analysis
- Epoxy Resin Curing Processes
- Quantum Dots Synthesis And Properties
- Microbial bioremediation and biosurfactants
- Chromium effects and bioremediation
Silesian University of Technology
2024
Gandhigram Rural Institute
2020-2023
Paracoccus sp. MKU1, a metabolically versatile bacterium that encompasses diverse metabolic pathways in its genome for the degradation of aromatic compounds, was investigated catechol bioremediation here first time to our knowledge. MKU1 degraded at an optimal pH 7.5 and temperature 37 °C, wherein 100 mg/L completely mineralized 96 h but required 192 complete mineralization 500 catechol. While investigating molecular mechanisms potential, it unveiled employed both ortho meta by inducing...
We report a comprehensive study of the interaction transition and heavy metal ions with graphene quantum dots-capped silver nanoparticles (AgGQDs) using different spectroscopic microscopic techniques. High-resolution transmission electron microscopy studies show that AgGQDs leads to formation oxides, zerovalent metals, aggregation Ag (AgNPs). The may interact through selective coordination -OH -COOH functionalities, adsorption on moiety, directly AgNPs. For instance, Cd2+ altered spherical...
The galvanic reaction (GR) between a graphene quantum dot (GQD)-stabilized AgNP (Ag-GQD)-modified glassy carbon (GC) surface and Hg(II) leads to complete dissolution of AgNPs within 15 min subsequent growth Hg(0) as "flower" on the GQD surface. This is unusual because generally GR bulk Ag/AgNPs with formation Hg–Ag amalgam/core shell structure. appearance peaks at 99.9 103.9 eV in X-ray photoelectron spectroscopy confirms GQDs, whereas disappearance peak 370 indicates Ag(0). When 200 ppm...
Unlike other metals, Hg forms droplets at ambient conditions when a Hg(II) salt interacts with hydroxyl-enriched graphene quantum dots (HEGQDs). The hydroxylation of GQD surface is evident from FT-IR, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) techniques. scanning electron microscopy images Hg(II)-HEGQDs incubated for 0, 1, 24, 168 h show the size 0.1, 0.3, 0.8, 2 μm, respectively. XPS studies confirm presence Hg(0) also reveal noticeable decline in composition percentage...