A5042392690- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Luminescence Properties of Advanced Materials
- Nanocluster Synthesis and Applications
- Copper-based nanomaterials and applications
- Advanced Photocatalysis Techniques
- bioluminescence and chemiluminescence research
- Gas Sensing Nanomaterials and Sensors
- Semiconductor Lasers and Optical Devices
- Perovskite Materials and Applications
- Wastewater Treatment and Reuse
- Asymmetric Hydrogenation and Catalysis
- Analytical Chemistry and Sensors
- Polydiacetylene-based materials and applications
- Radiation Detection and Scintillator Technologies
- Carbon and Quantum Dots Applications
- Ferroelectric and Piezoelectric Materials
- Spectroscopy and Quantum Chemical Studies
- Advanced Chemical Sensor Technologies
- Conducting polymers and applications
- Ammonia Synthesis and Nitrogen Reduction
- Inorganic and Organometallic Chemistry
- Nuclear materials and radiation effects
- Heavy Metals in Plants
- Metamaterials and Metasurfaces Applications
Ambedkar University Delhi
2019-2023
Sambalpur University
2016-2018
Banaras Hindu University
2014
Guru Ghasidas Vishwavidyalaya
2012-2013
Roche (United States)
2001-2002
Florence–Darlington Technical College
2001
ZnS nanocomposites is a promising area of research for designing novel functional hybrid materials due to their unique optical and electronic properties. This review emphasizes on the synthesis, studies potential applications.
Currently, the world is facing an energy crisis. One of techniques to fulfill demand increase utilization solar energy. For harvesting in large amounts, it essential develop efficient cells. Notably, cells (photovoltaic cells) produce electricity from The biggest hurdles, however, are capability and reliability Poor density spectrum bandgap semiconductor phosphors do not match allocation photons spectra lines. These issues cell efficacy must be addressed before photovoltaic can developed as...
A new method for N-methylation of indoles using environmentally safe and less toxic methylating reagent, dimethyl carbonate (DMC), has been developed. The effect various functional groups on the indole ring investigated. This provides desired product in high yields with purity is suitable large-scale production. process was used successfully a 300-gal reactor train 6-nitroindole.
Irrigation with sewage water in agriculture may result the uptake and accumulation of toxic heavy metals edible crops, posing a significant risk to humans. Certain vegetables exhibit higher rates than others, it is essential investigate extent which these accumulate soil potential risks they pose. This study conducted at an irrigation site Bilaspur, describes metal levels water, soil, their transportation various parts Coriandrum sativum (coriander). The revealed that content coriander was...
ABSTRACT Highly pure SiO 2 and :RE nanoparticles were synthesized by the sol–gel method. The morphological, structural optical properties of characterized X‐ray diffraction (XRD), scanning electron microscopy (SEM) transmission (TEM). XRD results indicate that all samples studied free from impurities. SEM/TEM well dispersed. Surface characterization nanocrystals Fourier transform infrared spectroscopy has been carried out structure surface‐bound based on spectral analysis is proposed....
Nanostructured polymer-semiconductor hybrid materials such as ZnS-poly(vinyl alcohol) (ZnS-PVA), ZnS-starch and ZnS-hydroxypropylmethyl cellulose (Zns-HPMC) are synthesized by a facile aqueous route. The obtained nanocomposites characterized using various techniques X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), UV/vis photoluminescence (PL). XRD studies confirm the zinc blende phase of indicate high purity samples. SEM small...
ABSTRACT We studied the chemiluminescence (CL) oxidation of phenyl hydrazine–luminol with various organic and inorganic peroxides. Maximum CL intensity for this system was obtained t ‐butylhydroperoxide. The enhancement in depended strongly on pH greatest at 12.5. solvent drastically enhanced intensity. DMSO found to increase many‐fold as compared acetonitrile water. effect temperature has also been studied. spectra revealed a broad peak 425 nm, which suggests excited 3‐aminophthalate ion...
ZnS nanoaggregates surface-passivated by a hydroxyl-based polymer matrix, polyvinyl alcohol (PVA), have been synthesized using wet chemical method and an organosulphur precursor. The nanocomposite was characterized XRD, SEM, FTIR. XRD patterns revealed wurtzite structure. FTIR spectrum confirmed the interaction of hydroxyl group PVA with ZnS. We proposed probable pathway for precipitation zinc sulfide alkaline hydrolysis complex formed from (NH2)2CS Zn2+-polymer complex. optical properties...
ZnS nanoparticles stabilized by a carbohydrate-based matrix, hypromellose (hydroxypropyl methylcellulose) were prepared via wet chemical method. The nanocomposite was characterized X-ray diffraction, transmission electon microscopy and Fourier transform infrared spectroscopy. X-Ray diffraction patterns revealed zinc blende structure. Thermogravimetric analysis suggested that polymer attached to the surface decomposes at 700 °C. Absorption measurements carried out calculation of diameter...
Abstract Mercaptoethanol (ME), mercaptopropionic acid (MPA) and L‐cysteine (L‐Cys) having ‐SH functional groups were used as surface passivating agents for the wet chemical synthesis of ZnS nanoparticles. The effect thiol group on optical photoluminescence (PL) properties nanoparticles was studied. L‐Cysteine‐capped showed highest PL intensity among studied capping agents, with a emission peak at 455 nm. found to be dependent concentration Zn 2+ S 2– precursors. buffer L‐Cys‐capped also...