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Superhydrophilic and oleophobic porous architectures based on basalt fibers as novel oil-repellent photothermal materials for efficient solar steam generation.

07:00 EST 3rd December 2019 | BioPortfolio

Summary of "Superhydrophilic and oleophobic porous architectures based on basalt fibers as novel oil-repellent photothermal materials for efficient solar steam generation."

The construction of efficient solar steam generation systems is of great importance for a broad varieties of applications such as desalination, sterilization etc. Herein, we report for the first time the preparation of superhydrophilic and oleophobic porous architectures based on basalt fibers, which was prepared by carbonization of the mixture of basalt fibers and tissue paper (BFT) followed by an oleophobic modification (O-BFT), as novel oil-repellent photothermal materials for efficient solar steam generation. The as-prepared O-BFT shows abundant porous features, superior light absorption and better thermal insulation (thermal conductivity 0.371Wm -1 K -1 ). Correspondingly, a high solar energy conversion efficiency of 90% was achieved at 1 sun irradiation. Its strong oleophobic wettability endows it excellent oil-repellent ability. Therefore, a high energy conversion efficiency of 81% in oily water was obtained at 1 sun irradiation, while the BFT only shows a low energy conversion efficiency of 26% because of severe oil contamination which seriously blocks the water evaporation. These unique features of the O-BFT makes it possible for efficient solar steam generation even for oily wastewater, showing great advantages over those reported photothermal materials usually suffering the drawbacks of poor anti-fouling performance, which in turn is of greatly technological insignificance for practical solar steam generation by largely extends its applications range.

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Name: ChemSusChem
ISSN: 1864-564X
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A class of nerve fibers as defined by their structure, specifically the nerve sheath arrangement. The AXONS of the myelinated nerve fibers are completely encased in a MYELIN SHEATH. They are fibers of relatively large and varied diameters. Their NEURAL CONDUCTION rates are faster than those of the unmyelinated nerve fibers (NERVE FIBERS, UNMYELINATED). Myelinated nerve fibers are present in somatic and autonomic nerves.

Techniques used to separate mixtures of substances based on differences in the relative affinities of the substances for mobile and stationary phases. A mobile phase (fluid or gas) passes through a column containing a stationary phase of porous solid or liquid coated on a solid support. Usage is both analytical for small amounts and preparative for bulk amounts.

A class of nerve fibers as defined by their structure, specifically the nerve sheath arrangement. The AXONS of the unmyelinated nerve fibers are small. The axons to SCHWANN CELLS ratio is greater in the unmyelinated nerve fibers than that in the myelinated fiber (NERVE FIBERS, MYELINATED) which is 1:1. Usually several axons are surrounded by a single Schwann cell in the unmyelinated nerve fibers. Therefore, each unmyelinated fiber is not completely covered by the MYELIN SHEATH formed by the Schwann cell. Unmyelinated nerve fibers conduct impulses at low velocities. They represent the majority of peripheral sensory and autonomic fibers. They are also found in the spinal cord and brain.

Skeletal muscle structures that function as the mechanoreceptors responsible for the stretch or myotactic reflex (REFLEX, STRETCH). They are composed of a bundle of encapsulated SKELETAL MUSCLE FIBERS, i.e., the intrafusal fibers (nuclear bag1 fibers, nuclear bag2 fibers, and nuclear chain fibers) innervated by sensory neurons.

Disorder of the peripheral nerves that primarily impair small nerve fibers. The affected small nerve fibers include myelinated A-delta fibers (see A FIBERS) and unmyelinated C FIBERS. Because these small fibers innervate skin and help control autonomic function, their neuropathy presents with neuropathic pain, reduced thermal and pain sensitivity, and autonomic dysfunction (e.g. abnormal sweating or facial flushing). Small fiber neuropathy can be idiopathic or associated with underlying diseases (e.g., AMYLOIDOSIS; DIABETES MELLITUS; SARCOIDOSIS; or VASCULITIS).

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