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Preparation and Characterization of Cellulose Nanofibers from Cassava Pulp

25-Aug-2015 | Watcharin Ruangudomsakul, Chaiwat Ruksakulpiwat, Yupaporn Ruksakulpiwat, Macromolecular Symposia, 2015

Summary In this study, cassava pulp (CP) was used to prepare cellulose nanofibers. CP was treated with sodium hydroxide and then bleached by sodium chlorite solution in acetate buffer solution. Finally, acid hydrolysis treatment was conducted by using two different acid type (H2SO4 and HCl). ...

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Synthesis, spectral, optical and photocatalytic properties of vanadium- and carbon-doped titanium dioxide with three-dimensional architecture of aggregates

23-Aug-2015 | Author(s): I.V. Baklanova, V.N. Krasil’nikov, V.P. Zhukov, O.I. Gyrdasova, M.V. Kuznetsov, L.Yu. Buldako ..., Journal of Photochemistry and Photobiology A: Chemistry, 2015

Publication date: 1 January 2016 Source:Journal of Photochemistry and Photobiology A: Chemistry, Volume 314 Author(s): I.V. Baklanova, V.N. Krasil’nikov, V.P. Zhukov, O.I. Gyrdasova, M.V. Kuznetsov, L.Yu. Buldakova, M.Yu. Yanchenko Vanadium-doped and vanadium- and carbon-doped ...

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Spectroscopic study of cystine adsorption on pyrite surface: From vacuum to solution conditions

23-Aug-2015 | Author(s): M. Sanchez-Arenillas, E. Mateo-Marti, Chemical Physics, 2015

Publication date: 8 September 2015 Source:Chemical Physics, Volume 458 Author(s): M. Sanchez-Arenillas, E. Mateo-Marti We characterized the adsorption of cystine molecules on pyrite surface via X-ray photoelectron spectroscopy. Anoxic conditions were simulated under ultra-high-vacuum ...

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Highly Dynamic Coordination Behavior of Pn Ligand Complexes towards “Naked” Cu+ Cations

20-Aug-2015 | Martin Fleischmann, Stefan Welsch, Eugenia V. Peresypkina, Alexander V. Virovets, Manfred Scheer, Chemistry - A European Journal, 2015

Abstract Reactions of Cu+ containing the weakly coordinating anion [Al{OC(CF3)3}4]− with the polyphosphorus complexes [{CpMo(CO)2}2(μ,η2:η2‐P2)] (A), [CpM(CO)2(η3‐P3)] (M=Cr(B1), Mo (B2)), and [Cp*Fe(η5‐P5)] (C) are presented. The X‐ray structures of the products revealed mononuclear (4) and ...

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Development of Porous Alginate Microbeads Containing Silver Nanoparticles and Their Antibacterial Efficacy

18-Aug-2015 | M. R. EL‐AASSAR, XIUMEI MO, Advances in Polymer Technology, 2015

ABSTRACT The main aim of this study is to develop a new method to prepare porous microbeads. Silver nanoparticles (AgNPs) were synthesized in an alginate colloidal solution, and then the porous microbeads containing AgNPs were prepared. The prepared alginate/AgNPs microbeads were ∼300 μm in ...

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Preparation and characterization of nanostructured thin films of Au and Ag nanoparticles synthesized by ascorbic acid on modified glass surface

18-Aug-2015 | Saadat Rastegarzadeh, Mohammad Azarkish, Shirin Abdali, Surface and Interface Analysis, 2015

Immobilization of Ag and Au nanoparticles (NPs) synthesized by ascorbic acid on chemically modified glass surface has been studied. 3‐[2‐(2‐Aminoethylamino)ethylamino]propyl‐trimethoxysilane (AMPTS), N‐(2‐aminoethyl)‐3‐aminopropyltrimethoxysilan, and 3‐trimethoxysilyl‐1‐propanethiol (MSPT) were ...

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Random photografting of polymers to nanoparticles for well‐dispersed nanocomposites

17-Aug-2015 | Adam W. Hauser, Ryan C. Hayward, Journal of Polymer Science Part B: Polymer Physics, 2015

ABSTRACT A simple method to achieve dispersion of nanoparticles (NPs) within polymer matrices by solution‐state photografting of benzophenone (BP)‐containing random copolymers is presented. A benzyl ether ligand that stabilizes NPs in solution while possessing selectivity toward hydrogen ...

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K2Ca4[(UO2)(Si2O7)2]: A Uranyl Silicate with a One-Dimensional Chain Structure

17-Aug-2015 | Chia-Lin Liu; Hsin-Kuan Liu; Wen-Jung Chang; Kwang-Hwa Lii, Inorganic Chemistry, 2015

A new uranyl silicate, K2Ca4[(UO2)(Si2O7)2], with a 1D chain structure has been synthesized from a solution of mixed alkali- and alkaline-earth-metal cations under hydrothermal conditions at 550 °C and 1400 bar and characterized by single-crystal X-ray diffraction and photoluminescence ...

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Broadband Transient Absorption and Two-Dimensional Electronic Spectroscopy of Methylene Blue

14-Aug-2015 | Jacob C. Dean; Shahnawaz Rafiq; Daniel G. Oblinsky; Elsa Cassette; Chanelle C. Jumper; Gregory D. Scholes, Journal of Physical Chemistry A, 2015

Broadband transient absorption and two-dimensional electronic spectroscopy (2DES) studies of methylene blue in aqueous solution are reported. By isolating the coherent oscillations of the nonlinear signal amplitude and Fourier transforming with respect to the population time, we analyzed a ...

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Linear and T-Shaped Iron(I) Complexes Supported by N-Heterocyclic Carbene Ligands: Synthesis and Structure Characterization

14-Aug-2015 | Zhenwu Ouyang; Jingzhen Du; Lei Wang; Jared L. Kneebone; Michael L. Neidig; Liang Deng, Inorganic Chemistry, 2015

The use of the N-heterocyclic carbene (NHC) ligands 1,3-bis(2′,6′-diethylphenyl)-4,5-(CH2)4-imidazol-2-ylidene (cyIDep), 1,3-bis(2′,6′-diethylphenyl)-imidazolin-2-ylidene (sIDep), and its N-mesityl analogue sIMes enables the preparation of the two-coordinate homoleptic iron(I)-NHC complexes ...

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