conferenceseries.com
conferenceseries.com 743rd Conference
International Conference on Applied Chemistry October 17-18, 2016 Houston, USA
Keynote Forum (Day 1)
Page 19 Xuenian Chen, Mod Chem appl 2016, 4:3(Suppl) conferenceseries.com http://dx.doi.org/10.4172/2329-6798.C1.001 International Conference on Applied Chemistry October 17-18, 2016 Houston, USA
Xuenian Chen Henan Normal University, China
Target synthesis and mechanism studies of boron/nitrogen-alkane analogs oron/nitrogen materials are well known and have been applied in many fields because of their unique properties such Bas super hardness and good abrasivity. On the basis of the Isolobal Analogy, B-N is iso-electronic to C-C so B, N-alkane analogs should have a similar framework to alkanes and be generally occurred. However, a very few B, N-alkane analogs can be used to make B/N materials mainly due to their unavailability. The different electronegativity of boron from nitrogen leads B, N-alkane analogs to be polar molecules and hydrogen bonding to boron and nitrogen atoms are chemical active, which results in totally different properties of B, N-alkane analogs from that of alkanes. For example, ethane is a non-polar molecule and its
melting point is -184˚C, but its isolectronic B, N-alkane analogs, ammonia borane, NH3BH3, is a polar molecule with the M.P. 103˚C. The polarity and activity of B, N-alkane analogs mentioned above make their preparation difficult. As a result, only a
few B, N-alkane analogs such as NH3 (BH2NH2) nBH3, (n=0, 1, 2) were prepared, and in most case, these compounds were serendipitously prepared. We found such B, N-alkane analogs can be target synthesized using proper reactions. In this topic, we report the target synthesis of B, N-alkane analogs. We will also discuss the influence factors and mechanism of reactions and try to summarize the general synthetic methods for preparation of long chain B, N-alkane analogs.
Biography Xuenian Chen has rewarded his PhD from Lanzhou Institute of Chemical Physics (LICP) of Chinese Academy of Sciences (CAS). He is the Director of Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials. His major field is Boron Chemistry, Organometallic and Coordination Chemistry. He has published more than 80 papers in reputed journals and has been serving as an Editorial Board Member of repute.
Mod Chem appl Volume 4, Issue 3(Suppl) ISSN: 2329-6798 MCA, an open access journal Applied Chemistry 2016 October 17-18, 2016
Page 20 Werner Urland, Mod Chem appl 2016, 4:3(Suppl) conferenceseries.com http://dx.doi.org/10.4172/2329-6798.C1.001 International Conference on Applied Chemistry October 17-18, 2016 Houston, USA
Werner Urland University of Fribourg, Switzerland
Design of lanthanide based phosphors using non-empirical calculations hosphors doped by divalent or trivalent lanthanides are in the spotlight of scientific investigation due to possible application Pvia domestic lighting, laser materials or scintillator crystals. Non-empirical calculations are used to design new phosphors by predicting their luminescence properties. The model is based on Density Functional Theory, which is used to parameterize an effective Hamiltonian that includes electrostatic, spin-orbit and ligand field contributions. From this calculations the multiple energy levels arising from the ground [Xe]4fn and excited [Xe]4fn 15d1 electron configurations of Ln2+ and Ln3+ in their chemical environment are obtained. The results are in good agreement with the experimental investigations, validating the usefulness of the theoretical modelling to understand and characterize the luminescence spectra of phosphors.
Biography Werner Urland received his PhD in Inorganic Chemistry in 1971 from Giessen University. During his PhD, he joined the group of Prof. Lord J Lewis at the University of London and worked together with Dr. M Gerloch in the field of magnetochemistry. Afterwards, he spent two years as a Post-doctoral fellow at the University Chemical Laboratory in Cambridge in the group of Prof. Dr. A D Buckingham working on Theoretical Chemistry. After his habilitation on magnetochemistry of lanthanide compounds in 1980, he joined the group of Prof. Dr. A Simon at the Max-Planck-Institute for solid state research in Stuttgart. In 1986, he became a Professor for Inorganic Chemistry at the University of Hannover. His current research as a guest Professor at the University of Fribourg is focused on the theory of 4f- and 5f-systems.
Mod Chem appl Volume 4, Issue 3(Suppl) ISSN: 2329-6798 MCA, an open access journal Applied Chemistry 2016 October 17-18, 2016
Page 21 conferenceseries.com
conferenceseries.com 743rd Conference
International Conference on Applied Chemistry October 17-18, 2016 Houston, USA
Keynote Forum (Day 2)
Page 43 Dirk Kuckling, Mod Chem appl 2016, 4:3(Suppl) conferenceseries.com http://dx.doi.org/10.4172/2329-6798.C1.001 International Conference on Applied Chemistry October 17-18, 2016 Houston, USA
Dirk Kuckling University of Paderborn, Germany
Synthesis of functional smart materials he volume phase transition in stimuli sensitive hydrogels is important for many applications, e. g. as (micro-) actuator and Tsensors materials, or in controlled cell attachment-detachment and controlled drug delivery. Most investigations focus on temperature or pH sensitive polymers, however, a variety of other parameters (e.g. ionic strength, UV light, magnetic fields, etc.) has been studied. The majority of these applications require the use of hydrogels as thin layers at surfaces and interfaces. Therefore, the behavior of bulk hydrogel may not be necessarily extended to these types of geometries. Responsive polymers networks are interesting materials for a variety of different applications due to the fact that they can perform a large volume transition. The possibility to pattern responsive polymer networks makes them useful for application in micro- system technology as well as in biomedicine. The transition behavior of these films showed similar trends to those of the corresponding linear polymers whereas confinement effects have been found for thin hydrogel layers. The ability to optimize the integration of these polymers is critical for the fabrication and development of platforms that harness the unique abilities of responsive polymer networks. Further decrease of the gel size led to the development of colloidal hydrogels with diameters down to 50 nm. Even complex structures like core-shell-morphologies can be prepared. For this purpose block copolymers exhibiting unique properties like the formation of structures in the range from a few nanometers up to several micrometers by self-organization were prepared. A variation of the polymer composition allows controlling the formed structures. Therefore, controlled polymerization methods like atom transfer radical polymerization (ATRP) or nitroxide-mediated radical polymerization (NMRP) are necessary in order to prepare defined blocks.
Biography Dirk Kuckling has completed his PhD from the CAU Kiel, Germany. He further performed research at TU Dresden, Germany and Stanford University, USA. Since 2008, he is full Professor for Organic and Macromolecular Chemistry at University of Paderborn, Germany. He has published more than 130 papers in reputed journals and has been serving as an Editorial Board Member of repute.
Mod Chem appl Volume 4, Issue 3(Suppl) ISSN: 2329-6798 MCA, an open access journal Applied Chemistry 2016 October 17-18, 2016
Page 44 Jane Catherine Ngila, Mod Chem appl 2016, 4:3(Suppl) conferenceseries.com http://dx.doi.org/10.4172/2329-6798.C1.001 International Conference on Applied Chemistry October 17-18, 2016 Houston, USA
Jane Catherine Ngila University of Johannesburg, South Africa
Modified nanocomposite materials for removal of water pollutants olymeric membranes, electrospun fibers, biosorbents and ceramic materials can be modified through various avenues. PZeolitic and catalytic nanoparticle coated ceramic membranes; hybrid inorganic-organic nanocomposite membranes and bio-inspired membranes (e.g. hybrid protein-polymer biomimetic membranes); aligned nanotube membranes, and isoporous block copolymer membranes, are typical for water purification. We reported various approaches used to produce nanocomposite adsorbents and membranes for water purification. Selected examples of fabrication and characterization (FTIR, SEM, TEM, EDS, BET, TGA, XRD and CAM) approaches in our research group include: (i) Synthesis and characterization
of photocatalysts such as Ag, Ag2O, ZnO and GO for degradation of organic pollutants in water; (ii) Electrospinning of polyvinylidene fluoride (PVDF) and polyacrylonitrile (PAN) composites functionalized with acrylic acid (AA) brushes; and functionalized lignin, cellulose and chitosan-based nanofibers, with 98% removal efficiency of metal ions (Pb, Cd and Cr); (iii)
Nanocatalyst loaded polyvinylidene fluoride/polyacrylonitrile (PVDF/PAN) composite (Ag/PAN/PVDF-g-PAA-TiO2/Fe-Pd) for the dechlorination and photodegradation of pesticides (dieldrin, chlorpyrifos, diuron and fipronil) with 95% degradation efficiency; (iv) Functionalized poly(ethersulphone) powders with carboxylic acid and amino acid groups as support for redox couples for e.g. Fe/Pd and Fe/Ni bimetallic nanoparticles for the electrocatalytic degradation of pesticides (within 30 min to attain 100% transformation) in water including chlorinated compounds (dieldrin, PCB 77 and DDT), confirmed with GCxGC- TOF-MS; and (iv) Polyethersulfone (PES) and magnesium oxide (PES-MgO) and PES-Ag@GO nanocomposite membranes to kill bacteria for e.g. E. coli. Further studies are on-going to reduce leaching of nanoparticles (NPs) from the nanofibers and nanomembranes, during water purification.
Biography Jane Catherine Ngila has obtained BEdSci (1986) and MSc Chemistry from Kenyatta University (1992). She obtained her PhD from UNSW Sydney, Australia. She has worked at Kenyatta University, University of Botswana, University of KwaZulu Natal, and University of Johannesburg, as a Professor of Analytical/ Environmental Chemistry. She has supervised and mentored over 90 Post-graduate students and Post-doctorates. She has published about 300 journal articles, book chapters and conference proceedings.
Mod Chem appl Volume 4, Issue 3(Suppl) ISSN: 2329-6798 MCA, an open access journal Applied Chemistry 2016 October 17-18, 2016
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