A5067695047- Graphene research and applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- 2D Materials and Applications
- Carbon and Quantum Dots Applications
- Conducting polymers and applications
- Luminescence and Fluorescent Materials
- Magnetic properties of thin films
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Zeolite Catalysis and Synthesis
- Advanced Photocatalysis Techniques
- Graphene and Nanomaterials Applications
- Adipose Tissue and Metabolism
- Multiferroics and related materials
- Magnetism in coordination complexes
- Glass properties and applications
- Mesoporous Materials and Catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- Quantum and electron transport phenomena
- Nanocluster Synthesis and Applications
- ZnO doping and properties
- Crystallography and molecular interactions
- MXene and MAX Phase Materials
- Ferroelectric and Piezoelectric Materials
Indian Institute of Engineering Science and Technology, Shibpur
2024-2025
Indian Association for the Cultivation of Science
2015-2024
KIIT University
2024
National Institute of Technology Durgapur
1994-2024
National Cheng Kung University
2024
Mymensingh Medical College Hospital
2019
Jadavpur University
2017
Diamond Harbour Women's University
2017
Chonnam National University
2005-2011
Pennsylvania State University
2009-2010
Among different nitro compounds, trinitrophenol (TNP) is the most common constituent to prepare powerful explosives all over world. A few works on detection of have already been reported in past years; however, selectivity still its infant stage. As nitroexplosives are highly electron deficient nature, it very difficult separate one from a mixture compounds by usual photoinduced transfer (PET) mechanism. In present work, we used bright luminescent, 2,6-diamino pyridine functionalized...
Extraction of hazardous heavy metals like As, Hg, Cd, Cr(VI), etc. for water purification is a great challenge. Exploiting the large surface area graphene, in present work, we have synthesized UV-active 2,6-diamino pyridine–reduced graphene oxide (DAP–RGO) composite to remove Cr(VI) from acidic solution. Here, presence an extra pyridinic-nitrogen lone pair facilitates removal efficiency excess [500 mg L−1 3 h only] over reported results so far. In addition that, unique advantage this...
Chemically synthesized amorphous MoS<sub>x</sub> quantum dots show excellent HER activity in neutral medium during 12 h of electrolysis.
Selective detection of either mercury (Hg2+) or iodide (I-) ion using fluorescence turn-on turn-off processes is an important area research. In spite intensive research, simultaneous both and turn-off-on processes, high sensitivity theoretical support concerning the mechanisms are still lacking. present work, graphene oxide functionalized by thymine to realize Hg2+ I- selectively mechanism. Ultra extent ppb level exploiting large surface achieved. DFT calculations also assist detailed...
Rapid and highly selective detection of Aromatic Nitro explosive Trinitrophenol by amine functionalized MoS<sub>2</sub> QDs.
Green synthetic approach to synthesizing highly luminescent N-doped carbon quantum dots with porphyrin like moiety for sensitive and selective detection of Fe<sup>3+</sup>.
Although few works on highly luminescent carbon quantum dots (CQD) with high photostability for sensing applications have already been reported in the literature, study of photoluminescence CQD presence oxidation–reduction reaction and its use as fluorescent indicator redox titration still remains an infant stage. Here, we synthesized green, eco-friendly, multicolored emissive CQDs from aspartic acid urea using simple heat treatment at 200 °C 2 h without a solvent. The as-synthesized show...
We report very fast, green, and large-scale synthesis of amino-functionalized carbon quantum dots (CQDs) using a domestic microwave to investigate CQD-Tb-based dual emission for visual detection toxic Hg2+. Citric acid p-phenylenediamine are used as precursor materials synthesize the CQD, which shows excitation-independent blue luminescence. To achieve emission, Tb-containing CQD is synthesized in easy cost-effective way. These dual-emissive fluorescent have been successfully indicator Hg2+...
Abstract Three new dinuclear Ni II complexes, [Ni 2 L (NO 3 ) ] ( 1 ), and (CH COO) (H O)] have been synthesized by using a tridentate Schiff base ligand, 2‐({[3‐(dimethylamino)propyl]imino}methyl)phenol (HL), along with nitrate, nitrite, or acetate ion, respectively, as co‐ligand. These three complexes were characterized spectral analysis, X‐ray crystallography, variable‐temperature magnetic susceptibility measurements. The structural analyses revealed that the ions are coordinated...
Designing of a white light emitting diode based on rare earth metal free intrinsic Zn-MOF by fabricating suitable device.
Four new end-on pseudohalide-bridged dinuclear copper(II) complexes, [Cu2(L1)2(N3)2]·DMF (1), [Cu2(L2)2(N3)2] (2), [Cu2(L3)2(NCS)2] (3), and [Cu2(L4)2(N3)2] (4) {where HL1, HL2, HL3, HL4 are tridentate N2O donor Schiff bases}, synthesized characterized. Complexes 1, 2, 3 possess π···π stacking interactions, while in addition hydrogen-bonding interactions present 1 3. However, by contrast, complex 4 contains neither type of interaction. Field-induced long-range ferromagnetic ordering beyond...
Graphene oxide (GO) enriched in oxygen functionalities is limited optoelectronic application because of its poor optical behavior. One the major strategies for developing properties GO functionalization. Here, sheets are functionalized by aminoazobenzene to achieve an intercalated type structure with interlayer separation 9.3 Å. Bright green emission observed this aminoazobenzene-functionalized (AAB-GO). Remarkable enhancement photoluminescence via surface passivation and excited-state...
Graphene quantum sheets of size 2-5 nm are synthesized to achieve remarkable magnetoresistance behavior as a result ferromagnetic edges coupled through antiferromagnetic interaction. These spin valve-like with separated by nonmagnetic core have potential applications in spintronic devices.
Here, we demonstrate chemical synthesis of graphene based nano-spin valve like structures using nickel layers as ferromagnetic contacts grown on both sides sheets. Magnetic measurements indicate that the spins two opposite are coupled through antiferromagnetic interaction up to room temperature. However, they switch into parallel configuration when a magnetic field about 2000 Oe is applied resulting in change magnetoresistance ~19%.