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U(V) in metal uranates: a combined experimental and theoretical study of MgUO4, CrUO4, and FeUO4

10-Feb-2016 | Xiaofeng Guo; Eitan Tiferet; Liang Qi; Jonathan M. Solomon; Antonio Lanzirotti; Matthew Newville; Mark H. Engelhard; ..., Dalton Transactions, 2016

Although pentavalent uranium can exist in aqueous solution, its presence in the solid state is uncommon. Metal monouranates, MgUO4, CrUO4 and FeUO4 were synthesized for detailed structural and energetic investigations. Structural characteristics of these uranates used powder X-ray diffraction, ...


Taking Bismuthinite to Bismuth Sulfide Nanorods in Two Easy Steps

10-Feb-2016 | Dimuthu Senevirathna; Victoria L Blair; Melissa Vivienne Werrett; Philip Craig Andrews, Dalton Transactions, 2016

The transformation of mineral bismuthinite, to Bi2S3 nanoparticles, via a simple two-step process is described. The reaction of bismuthinite with two aryldithoic acids gave the complexes; [Bi(S2C(C6H4)-4-CH3)3] and [Bi(S2C(C6H4)-4-OCH3)3]. Mild solution decomposition (120 °C) of these bismuth ...


A self-assembling [small beta]-peptide hydrogel for neural tissue engineering

10-Feb-2016 | S. Motamed; M. P. Del Borgo; K. Kulkarni; N. Habila; K. Zhou; P. Perlmutter; J. S. Forsythe; M. I. Aguilar, Soft Matter, 2016

We report a new class of β-peptide based hydrogel for neural tissue engineering. Our β-peptide forms a network of nanofibres in aqueous solution, resulting in a stable hydrogel at physiological conditions. The hydrogel shows excellent compatibility with neural cells and provides a suitable ...


Electrochemical synthesis of organochalcogenides in aqueous medium

10-Feb-2016 | Pedro B. Ribeiro Neto; Sonydelane O. Santana; Guillaume Levitre; Danilo Galdino; Jadson L. Oliveira; Rogério T. Ribe ..., Green Chemistry, 2016

The electrochemical preparation of telluride, selenide and sulfide ions was carried out in NaOH aqueous solution, using a two compartment cell. Organochalcogenides were prepared from halogenated compounds in a two-step procedure. The monochalcogenides were obtained as the major products in good ...


Partitioning of mobile ions between ion exchange polymers and aqueous salt solutions: importance of counter-ion condensation

10-Feb-2016 | Jovan Kamcev; Michele Galizia; Francesco M. Benedetti; Eui-Soung Jang; Donald R. Paul; Benny D. Freeman; Gerald S. M ..., Physical Chemistry Chemical Physics, 2016

Equilibrium partitioning of ions between a membrane and a contiguous external solution strongly influences transport properties of polymeric membranes used for water purification and energy generation applications. This study presents a theoretical framework to quantitatively predict ion sorption ...


Post-synthetic metalation in an anionic MOF for efficient catalytic activity and removal of heavy metal ions from aqueous solution

10-Feb-2016 | Anindita Chakraborty; Sohini Bhattacharyya; Arpan Hazra; Ashta Chandra Ghosh; Tapas Kumar Maji, Chemical Communication, 2016

A new 3D porous anionic MOF (AMOF-1) based on ZnII and a flexible tetracarboxylate linker has been synthesized. AMOF-1 showed potential for capture and removal of toxic metal ions from aqueous solution with a detection limit in the ppm level. The CuII@AMOF-1′ hybrid obtained by post-synthetic ...


Functionalized C@TiO2 hollow spherical architectures for multifunctional applications

10-Feb-2016 | Shreyasi Chattopadhyay; Manish Kr Mishra; Goutam De, Dalton Transactions, 2016

Hierarchical anatase titania (TiO2) hollow spherical architecture decorated with functionalized carbon dots (CF@THS) was synthesized by solvothermal decomposition of titanium (IV) isopropoxide (TTIP) in presence of a mixture solution containing thiourea and citric acid. Interestingly, the ...


Transitional hydrogen bonds in aqueous perchlorate solution

10-Feb-2016 | Krzysztof Nieszporek; Przemysław Podkościelny; Jolanta Nieszporek, Physical Chemistry Chemical Physics, 2016

Different mechanisms of H-bond formation between perchlorate anions and water are presented using the molecular dynamics simulations. The detailed methods in searching for multi-centered hydrogen bonds are proposed. The time evolution of H-bond geometric parameters for classical, bifurcated and ...


Sugar-functionalized triptycenes used for dispersion of single-walled carbon nanotubes in aqueous solution by supramolecular interaction

09-Feb-2016 | Hui Li; Qi Chen; Bao-Hang Han, New Journal of Chemistry, 2016

Noncovalent functionalization of carbon nanotubes (CNTs) can not only preserve their unique properties, but also improve nanotube’s solubility in solvent. Herein, two water-soluble sugar-functionalized triptycene derivatives were synthesized and interacted with single-walled carbon nanotubes ...


Easy and eco-friendly synthesis of ordered mesoporous carbons by self-assembly of tannin with a block copolymer

09-Feb-2016 | F. L. Braghiroli; V. Fierro; J. Parmentier; A. Pasc; A. Celzard, Green Chemistry, 2016

Ordered mesoporous carbons were prepared by the self-assembly of Mimosa tannin, a natural polyphenolic molecule, and a micellar solution of Pluronic® F127, used as soft template. The synthesis was carried out at 20 °C using water as the only solvent and without crosslinker agent (i.e., ...


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