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One Pot Synthesis of Graphene by Exfoliation of Graphite in ODCB

Abstract:
Carbon based graphene oxide was synthesized by a modified Hummer’s method with different ratios of graphite to sodium nitrate (NaNO3) of 1:1, 1:2, and 2:1. These variations were carried out to determine which conditions would afford more oxygen functional groups. The products obtained, namely, GO1:1, GO1:2, GO2:1, were characterized by means of powder X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, elemental analysis, and Raman spectroscopy. XRD revealed that GO2:1 is more crystalline than either GO1:1 or GO1:2, while Raman spectroscopy confirmed the in-phase vibration (G-band) of GO2:1 at 1596 nm and the disorder band (D-band) at 1347 nm. Also, TEM showed the expected layer structure of the graphene oxide sheet. FTIR revealed the presence of oxygen functional groups while the elemental analysis confirmed that GO 2:1 has more oxygen functional groups than GO1:1 and GO1:2. Thus, the synthesis of GO with a limited amount of sodium nitrate provided a more crystalline and oxygen-functionalized material.

Abstract:
Carbon based graphene oxide was synthesized by a modified Hummer’s method with different ratios of graphite to sodium nitrate (NaNO3) of 1:1, 1:2, and 2:1. These variations were carried out to determine which conditions would afford more oxygen functional groups. The products obtained, namely, GO1:1, GO1:2, GO2:1, were characterized by means of powder X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, elemental analysis, and Raman spectroscopy. XRD revealed that GO2:1 is more crystalline than either GO1:1 or GO1:2, while Raman spectroscopy confirmed the in-phase vibration (G-band) of GO2:1 at 1596 nm and the disorder band (D-band) at 1347 nm. Also, TEM showed the expected layer structure of the graphene oxide sheet. FTIR revealed the presence of oxygen functional groups while the elemental analysis confirmed that GO 2:1 has more oxygen functional groups than GO1:1 and GO1:2. Thus, the synthesis of GO with a limited amount of sodium nitrate provided a more crystalline and oxygen-functionalized material.

Title of Talk: Synthesis of Graphene Oxide under Differing Conditions and its Characterization

One Pot Synthesis of Graphene by Exfoliation of ..

Title of Talk:Synthesis of Graphene Oxide under Differing Conditions and its Characterization

Biography:
Dr. Sara Pellegrino is an Assistant Professor of Organic Chemistry at the University of Milano, Department of Pharmaceutical Sciences, Italy. She received her Ph. D in Medicinal Chemistry from the University of Milano in 2005. She has been visiting scientist at the University of Regensburg (Germany) in 2005-2006. Her research interests are the synthesis of peptides and peptide mimics, and their application in Material Science, Catalysis, Biochemistry and Medicinal Chemistry. She is author of more than 50 papers in peer-reviewed journals, of two patents filed, and of 60 communications at international conferences.

Biography:
Dr. Bhavani Puttaswamygowda is working as Assistant Professor of Biotechnology at College of Agriculture, V.C. Farm, Mandya, University of Agricultural Sciences, Bangalore. She is working on synthesis of slow release nanofertilizers to enhance nitrogen use efficiency. She is also exploring different dimensions of exploiting nanotechnolgy to develop alternative effective strategies in various fields of agriculture.

Hydrothermal Synthesis of Graphene-NiO Nano ..

Biography:
Mrs Shaista Taimur is a PhD scholar from Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan. Her PhD degree is in Materials Engineering (2017). She is scientifically skilled in polymeric nanohybrid composites synthesis and processing. Her reserach area and expertise are clay polymer nanocomposites (CPNs) synthesis and processing with special focus on chemical and radiation grafting, Organic-inorganic nanohybrids and their applications in toxic and precious metals removal and recovery and modification of nanoclay (sepiolite) for tailor made properties and applications. She has three international publications. She has teaching experience in different institutions of Pakistan.

Title of Talk: Synthesis of Graphene Oxide under Differing Conditions and its Characterization

Biography:
Dr. Naoufel Khemiri is an Assistant Professor at El Manar Preparatory Engineering Institute in Tunisia. He obtained his Ph.D thesis in “Condensed Matter Physics” from the Faculty of Sciences of Tunis (FST), University of Tunis El Manar, Tunisia in 2012. He is now member of Photovoltaic and Semiconductor Materials Laboratory (ENIT, Tunis, Tunisia). He works mainly on the synthesis and the characterization of ternary and quaternary compounds (CuInS2, Zn(S,O), SnSb4S7, Cu2ZnSnS4 and Cu2ZnxFe1-xSnS4) for opto-electronic and solar cell applications. He published more than 20 papers in International Journals with impact factor and participated in several international conferences in materials science.

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Описание pooja Rani Synthesis and Characterization of Graphene


Vietnam Academy of Science and Technology (VAST)

Biography:
Rajiv Prakash is professor and coordinator of the School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India. He has been recipients of Young Scientist (Council of Science and Technology), Young Engineer Awards (INAE) of India and Materials Society Medal Award of India. His current research interests include synthesis of morphology controlled organic conducting polymers, nanocomposites, fabrication and characterization of organic electronic devices and sensors/biosensors. He is having more than 150 publications in international journals of repute and 17 patents in his credit. He is in Editorial Board of several National and International Journals. He is member of various national committees including DST-TIFAC for India Vision 2035 and MHRD “IMPRINT” program.

View session wise speaker sessions below

Biography:
Ms.T.S. Harshani Perera is a lecturer at the Faculty of Applied Sciences in Sabaragamuwa University of Sri Lanka. After the completion of her BSc degree in Applied Sciences at Sabaragamuwa University of Sri Lanka, she earned her Biomedical Engineering Master degree from the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing of the Wuhan University of Technology, Wuhan, P.R. China. Her dissertation is on Preparation and Surface Modification of Europium Doping Hydroxyapatite Luminescent Nanoparticles for Cell Labeling. Her main area of research is application of rare earth doped bioapatite nanoparticles for cell labeling.

Click on the respective day to view sessions on that particular day

Biography:
Prof. Nana Zhao obtained her B. S. in Applied Chemistry in 2003 from Shandong University, and Ph.D. in Physical Chemistry in 2008 from Peking University. From 2008 to 2010, she worked as a Postdoc Fellow in Department of Polymer and Material Chemistry at the University of Toronto, Canada. After another two years’ post-doctoral work in Division of Materials Science at Lawrence Berkeley National Laboratory, she joined Beijing University of Chemical Technology in 2012. She has published over 20 publications in well-known international journals such as Chem. Soc. Rev., Angew. Chem. Int. Ed., Nano Lett., and Adv. Mater. et al. Prof. Zhao has her expertise in strategic design, controlled synthesis, and biomedical applications of organic/inorganic nanohybrids, including diagnosis of diseases, gene delivery, controlled drug-release, and imaging. Integrating the control over morphology, surface functionalization, and self-assembly strategies, the performance of nanohybrids could be improved further.

HASSAN GHAFORI FARD - Tehran Polytechnic

Biography:
Assunta Marrocchi is currently Associate Professor at the Department of Chemistry, Biology and Biotechnology of the University of Perugia. She earned a PhD in Chemical Sciences at the same Institution. In 2008 she conducted research at Northwestern University, Evanston, IL (USA), as visiting scientist. Her research expertise and interests encompass the fields of 1) organic functional materials, with a special emphasis on the sustainable synthesis of photoactive organics for solar cells; 2) biomass sustainable conversion to high added value chemicals.

Members - Françoise Winnik

Biography:
Assunta Marrocchi is currently Associate Professor at the Department of Chemistry, Biology and Biotechnology of the University of Perugia. She earned a PhD in Chemical Sciences at the same Institution. In 2008 she conducted research at Northwestern University, Evanston, IL (USA), as visiting scientist. Her research expertise and interests encompass the fields of 1) organic functional materials, with a special emphasis on the sustainable synthesis of photoactive organics for solar cells; 2) biomass sustainable conversion to high added value chemicals.

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