The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Santanu Paria - One of the best experts on this subject based on the ideXlab platform.
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aegle marmelos leaf extract and plant surfactants mediated Green Synthesis of au and ag nanoparticles by optimizing process parameters using taguchi method
ACS Sustainable Chemistry & Engineering, 2015Co-Authors: Jagajjanani K Rao, Santanu PariaAbstract:The Taguchi method was used to optimize the phytochemicals mediated Green Synthesis parameters of silver (Ag) and gold (Au) nanoparticles. The ratio of respective metal ion precursor to Aegle marme...
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aegle marmelos leaf extract and plant surfactants mediated Green Synthesis of au and ag nanoparticles by optimizing process parameters using taguchi method
ACS Sustainable Chemistry & Engineering, 2015Co-Authors: Santanu PariaAbstract:The Taguchi method was used to optimize the phytochemicals mediated Green Synthesis parameters of silver (Ag) and gold (Au) nanoparticles. The ratio of respective metal ion precursor to Aegle marmelos leaf extract, plant based surfactants (Reetha, Acacia, and Shikakai), pH, temperature, and color of the light source were chosen as significant parameters affecting the size of the nanoparticles. The Ag (∼13 nm) and Au (∼23 nm) nanoparticles with narrow size distributions were produced after optimization of process parameters by the Taguchi method. Statistical analysis based on experimental results indicates that the pH and temperature have greater influence on the Ag nanoparticles size, whereas it is surfactant media and temperature for the Au nanoparticles. The square plate type nanoplates of Au with edge length of ∼630 nm and width ∼45 nm were also obtained by just changing the process parameters. This study shows the suitability of the Taguchi methodology in Green Synthesis and obtaining desired size nan...
Pawan K. Khanna - One of the best experts on this subject based on the ideXlab platform.
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Green Synthesis of znse quantum dots using in situ Synthesised sodium selenide
International Journal of Nanotechnology, 2010Co-Authors: Pawan K. Khanna, Jin Ook Baeg, Shinbi LeeAbstract:Single-step Green Synthesis of zinc blende ZnSe quantum dots (QDs) is performed using sodium selenide and zinc stearate. The present method is non-toxic and is considered reasonably Green route where stearate ions released during the reaction act as surfactant. The size quantisation effect is revealed by blue shifted absorption bands with a band-gap energy of ~2.9 eV with respect to bulk ZnSe band-gap of 2.7 eV. Photoluminescence measurement with FWHM <80 nm revealed trap state emission. Broadened XRD pattern confirmed cubic (zinc blende) crystal structure of ZnSe. The particle size was estimated to be about 5 nm from the XRD line broadening, which matched well with TEM analysis.
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band gap engineering of znse quantum dots via a non top Green Synthesis by use of organometallic selenium compound
Current Applied Physics, 2010Co-Authors: Rupinder K Beri, Priyesh V More, B G Bharate, Pawan K. KhannaAbstract:Abstract Single-step Green Synthesis of ZnSe quantum dots (QDs) from 1,2,3-selenadiazole and zinc acetate resulted in formation of high-quality mono-disperse ZnSe with engineered band-gap. The present method is a non-TOP Green route where oleic acid is used as a surfactant. The size quantization effect can be monitored by UV–visible spectroscopy which shows in the range 370–387 nm (3.20–3.35 eV), a blue shift of about 70–90 nm with respect bulk ZnSe. Photoluminescence measurement revealed band-gap emission at ∼390 nm (3.18 eV, Stokes shift of
Jagajjanani K Rao - One of the best experts on this subject based on the ideXlab platform.
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aegle marmelos leaf extract and plant surfactants mediated Green Synthesis of au and ag nanoparticles by optimizing process parameters using taguchi method
ACS Sustainable Chemistry & Engineering, 2015Co-Authors: Jagajjanani K Rao, Santanu PariaAbstract:The Taguchi method was used to optimize the phytochemicals mediated Green Synthesis parameters of silver (Ag) and gold (Au) nanoparticles. The ratio of respective metal ion precursor to Aegle marme...
Bagepalli Shivaram Ashwini - One of the best experts on this subject based on the ideXlab platform.
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cinnamomum verum bark extract mediated Green Synthesis of zno nanoparticles and their antibacterial potentiality
Biomolecules, 2020Co-Authors: Mohammad Azam Ansari, M Murali, Daruka Prasad, Mohammad A Alzohairy, Ahmad Almatroudi, Mohammad N Alomary, Sudarshana Brijesh Singh, Sarah Mousa Maadi Asiri, A. C. Udayashankar, Bagepalli Shivaram AshwiniAbstract:Cinnamomum verum plant extract mediated propellant chemistry route was used for the Green Synthesis of zinc oxide nanoparticles. Prepared samples were confirmed for their nano regime using advanced characterization techniques such as powder X-ray diffraction and microscopic techniques such as scanning electron microscopy and transmission electron microscopy. The energy band gap of the Green synthesized zinc oxide (ZnO)-nanoparticles (NPs) were found between 3.25–3.28 eV. Fourier transmission infrared spectroscopy shows the presence of Zn-O bond within the wave number of 500 cm−1. SEM images show the specific agglomeration of particles which was also confirmed by TEM studies. The Green synthesized ZnO-NPs inhibited the growth of Escherichia coli and Staphylococcus aureus with a minimum inhibitory concentration (MIC) of 125 µg mL−1 and 62.5 µg mL−1, respectively. The results indicate the prepared ZnO-NPs can be used as a potential antimicrobial agent against harmful pathogens.
Rupinder K Beri - One of the best experts on this subject based on the ideXlab platform.
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band gap engineering of znse quantum dots via a non top Green Synthesis by use of organometallic selenium compound
Current Applied Physics, 2010Co-Authors: Rupinder K Beri, Priyesh V More, B G Bharate, Pawan K. KhannaAbstract:Abstract Single-step Green Synthesis of ZnSe quantum dots (QDs) from 1,2,3-selenadiazole and zinc acetate resulted in formation of high-quality mono-disperse ZnSe with engineered band-gap. The present method is a non-TOP Green route where oleic acid is used as a surfactant. The size quantization effect can be monitored by UV–visible spectroscopy which shows in the range 370–387 nm (3.20–3.35 eV), a blue shift of about 70–90 nm with respect bulk ZnSe. Photoluminescence measurement revealed band-gap emission at ∼390 nm (3.18 eV, Stokes shift of
