Results 41 to 50 of about 34,775 (190)

Removal of Mn(II) from Acidic Wastewaters Using Graphene Oxide–ZnO Nanocomposites

open access: yesMolecules, 2021
Pollution due to acidic and metal-enriched waters affects the quality of surface and groundwater resources, limiting their uses for various purposes.
Eduardo Leiva   +2 more
doaj   +1 more source

Co-Rh modified natural zeolites as new catalytic materials to oxidize propane and naphthalene from emission sources [PDF]

open access: yes, 2016
Natural zeolites as a raw material to prepare catalytic precursors for the oxidation reaction of linear and poly-aromatic hydrocarbons are reported in this work. The process consisted in the formation of mono- and bi-metallic species containing Co and Co-
Botto, Irma Lia   +4 more
core   +2 more sources

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

open access: yesAdvanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas   +11 more
wiley   +1 more source

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza   +11 more
wiley   +1 more source

Field-Induced Single Molecule Magnets of Phosphine- and Arsine-Oxides

open access: yesFrontiers in Chemistry, 2018
The coordination chemistry of dysprosium and terbium toward phosphine and arsine oxides was further explored. Thus, the new nitrate [M(NO3)3(Ph3PO)3] (M = Tb, 1; Dy, 2), [Dy(NO3)3(EtOH)(Ph3XO)2] (X = P, 3; As, 4), chloride [DyCl2(Ph3AsO)4]Cl (5 ...
Matilde Fondo   +5 more
doaj   +1 more source

Delivery of Therapeutic Biopolymers Employing Silica-Based Nanosystems

open access: yesPharmaceutics, 2023
The use of nanoparticles is crucial for the development of a new generation of nanodevices for clinical applications. Silica-based nanoparticles can be tailored with a wide range of functional biopolymers with unique physicochemical properties thus ...
Zoila Gándara   +2 more
doaj   +1 more source

Size-Controlled Water-Soluble Ag Nanoparticles [PDF]

open access: yes, 2007
Ag nanoparticles of two different sizes (1 and 4 nm) were prepared within an apoferritin cavity by using an Ag+-loaded apoferritin as a nanoconfined environment for their construction.
Calvino Gámez, José Juan   +6 more
core   +2 more sources

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

open access: yesAdvanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti   +3 more
wiley   +1 more source

James Edward Huheey (1935 - 2020). En memoria de un químico fuera de lo común.

open access: yesRevista de Química, 2020
En esta pequeña nota se recuerdan las características fuera de lo comunes del autor de uno de los libros más conocidos en el área de la Química inorgánica: James E. Huheey.
Luis Ortega-San-Martin
doaj  

Grafting the surface of carbon nanotubes and carbon black with the chemical properties of hyperbranched polyamines

open access: yesScience and Technology of Advanced Materials, 2016
Controlling the chemistry on the surface of new carbon materials is a key factor to widen the range of their applicability. In this paper we show a grafting methodology of polyalkylamines to the surface of carbon nanomaterials, in particular, carbon ...
Francisco Morales-Lara   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy