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Aayush Gupta
Thapar University
61Publications
10H-index
329Citations
Publications 61
Newest
#1Aayush Gupta (Thapar University)H-Index: 10
#2Rajpal Kour (Thapar University)
Last.Loveleen K. Brar (Thapar University)H-Index: 6
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Carbon nanospheres (CNSs) couple large surface area, high electrical conductivity, thermal stability and variable surface functionalities with controllable size, band gap and chemical properties. In the present study, mono-dispersed CNSs were synthesized by hydrothermal process from three saccharides—glucose, xylose (monosaccharides) and sucrose (disaccharide). The synthesized CNSs were characterized using XRD, FTIR, SEM, TEM and UV–visible spectroscopy. Xylose gives the smallest CNSs for the sa...
#1Jayanti Sharma (Mount Carmel College, Bangalore)
#2Aayush Gupta (Thapar University)H-Index: 10
Last.O.P. Pandey (Thapar University)H-Index: 24
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Abstract A facile single step chemical method is reported for the synthesis of Zr doped ZnS nanopowder and its photocatalytic performance has been studied. The average crystallite size of the synthesized powder estimated from X-ray diffraction (XRD) is nearly 1.1 nm. Transmission electron microscopy (TEM) study shows that nanoparticles are agglomerated having a particle size of nearly 10 nm. The optical band gap of ZnS and Zr-doped ZnS, estimated with the help of UV–visible spectroscopy, is 3.7 ...
#1Kajal Rajrana (Thapar University)
#2Aayush Gupta (Thapar University)H-Index: 10
Last.O.P. Pandey (Thapar University)H-Index: 24
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Abstract In this reported work, the potential application of MnO 2 nanopowder for photocatalytic and the electrocatalytic applications is explored. The MnO 2 nanopowder has been synthesized through sonochemical route using KMnO 4 and poly-ethylene glycol as the reducing agent. Structural and optical analysis (XRD, TEM, FTIR, XPS and UV–visible) confirmed the formation of nanocrystalline MnO 2 network. The adsorption and photocatalytic performance of synthesized MnO 2 was tested for degradation o...
#1Amit Singh VigH-Index: 1
Last.O.P. PandeyH-Index: 24
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Abstract Undoped, Ca-doped NaNbO 3 and its heterostructure with g-C 3 N 4 have been successfully prepared through chemical route followed by heat treatment. All the prepared samples were analysed using XRD, FESEM, TEM and XPS spectroscopy for various structural and surface features. Further, absorbance (UV–visible) and photoluminescence (PL) spectroscopy revealed the bandgap narrowing and emission quenching, respectively as a result of doping and formation of heterojunction. Ca doped NaNbO 3 -C ...
#1Aayush Gupta (Thapar University)H-Index: 10
#2O.P. Pandey (Thapar University)H-Index: 24
Abstract Photocatalysis has emerged as a vital tool for purification of waste water and also to obtain alternate fuels (H 2 ) through water splitting. TiO 2 , ZnO and other non-carbide systems (ZnS, metallic nanoparticles (NPs), etc.) have been studied thoroughly to enhance their photocatalytic performances through doping and the formation of heterojunctions. But, niobium carbide (NbC) is gaining interest of researchers due to its ability to catalyze electrochemical reactions (hydrogen evolution...
#1Loveleen K. Brar (Thapar University)H-Index: 6
#2Aayush Gupta (Thapar University)H-Index: 10
Last.O.P. Pandey (Thapar University)H-Index: 24
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Abstract Nano transition metal carbides (TMCs) have emerged as materials of great interest for different catalytic applications in fuel cells and also as catalysts for photo-treatment of organic effluents in industrial waste water. For both the catalytic phenomenon, the charge transfer pathways between the TMC and the surrounding carbon are of significant importance. In present work, well characterized nano powders of Tantalum Carbide (TaC) have been used as a model system to understand the effe...
#1Venkateswaran Vivekananthan (Jeju National University)H-Index: 6
#2Nagamalleswara Rao Alluri (Jeju National University)H-Index: 10
Last.Sang-Jae Kim (Jeju National University)H-Index: 39
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The rapid urbanisation and high population density of all nations requires the development of sustainable security systems at all times which can protect people and their belongings against burglaries. A zero-power consuming or self-powered intruder system (SPIS) was reported for the first time using a flexible piezoelectric composite film nanogenerator (FPCF-NG) made up of polydimethylsiloxane (PDMS) and a solid state reaction (SSR) based dual perovskite system, i.e. (1 − x)K0.5Na0.5NbO3−xBaTiO...
#1Aayush Gupta (Thapar University)H-Index: 10
#2Manish Mittal (Thapar University)H-Index: 5
Last.O.P. Pandey (Thapar University)H-Index: 24
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A facile carbothermal route was adopted to obtain niobium carbide nanoparticles (NPs) embedded in carbon network from Nb2O5 to study photocatalytic behavior. Optimization of synthesis parameters to obtain single phase NbC NPs has been successfully done. The phase identification, morphology and nature of carbon were determined with the help of X-ray diffraction, transmission electron microscopy (TEM) and Raman spectroscopy. X-ray photoelectron spectroscopy (XPS) suggested the presence of multiple...
#1Jagdeep Kaur (Thapar University)H-Index: 9
#2Aayush Gupta (Thapar University)H-Index: 10
Last.O.P. Pandey (Thapar University)H-Index: 24
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Abstract Nanocomposites (NCs) of different band gap semiconductors provide better photocatalytic activity as compared to that of monolithic semiconductor nanoparticles (NPs). With the aim to investigate the effect of organic capping agent (thioglycerol; TG in the present study) on photocatalytic activity, ZnS-Ag 2 S NCs have been synthesized in the presence of TG using simple chemical precipitation route. For comparative studies, NCs have been synthesized under same synthesis conditions without ...
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