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Removal of Toluene by Adsorption/Desorption Using Ultra-stable Y Zeolite

Lei Xu、Yonghong Li、Jiang Zhu 等 4 位作者2019-01-21Transactions of Tianjin University

The adsorption performance of toluene on ultra-stable Y zeolite (USY) was studied via dynamic adsorption. The effects of bed temperature, initial concentration, and feed flow rate on adsorption were investigated. The Yoon–Nelson model was used to fit the toluene breakthrough curves. The length of mass transfer zone wa…

Catalytic Processes in Materials ScienceZeolite Catalysis and SynthesisCarbon Dioxide Capture Technologies

Effects of zinc oxide nanoparticles and zinc sulfate on the testis of common carp, Cyprinus carpio

Deepa Seetharam、Raju Murugananthkumar、Yugantak Raj Gupta 等 5 位作者2019-01-21Nanotoxicology

) in the testis of six-month-old common carp Cyprinus carpio exposed to three different doses, viz., 10, 50, and 100 μg/L for 21 days. Characterization of ZnO-NPs was done after sonication, the size and shape of ZnO-NPs were determined as ∼20-30 nm spherical structure measured zeta potential of +26.0 mV. After treatme…

Nanoparticles: synthesis and applicationsHeavy Metal Exposure and ToxicityTrace Elements in Health

Formation of Carbonate on Ag(111) under Exposure to Ethylene and Oxygen Gases Evidenced by Near Ambient Pressure XPS and NEXAFS

Kazuhisa Isegawa、Kohei Ueda、Satoru Hiwasa 等 6 位作者2019-01-21Chemistry Letters

The active oxygen species for ethylene epoxidation on Ag surfaces has been a long-standing issue. We conducted in situ observations of Ag(111) surfaces under exposure to ethylene and oxygen gases with near ambient pressure (NAP) X-ray photoelectron spectroscopy and near-edge X-ray absorption fine structure spectroscop…

Catalytic Processes in Materials ScienceMachine Learning in Materials ScienceElectron and X-Ray Spectroscopy Techniques

Band Gap Engineering of Mg Doped ZnO Nanorods Prepared by a Hydrothermal Method

Sevim Demirozu Senol、C. Boyraz、E. Özuğurlu 等 5 位作者2019-01-21Crystal Research and Technology

Abstract The effect of band gap on the structure, magnetic, and optical properties of Zn 1−x Mg x O nanorods synthesized by hydrothermal method using varying x‐values from 0.00 to 0.05 with 0.01 step increment is studied. The structural phases of Zn 1−x Mg x O samples are determined by X‐ray diffraction tool. The Riet…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications

Modulating Noncovalent Cross-links with Molecular Switches

Eric S. Epstein、Luca Martinetti、Ravichandran H. Kollarigowda 等 7 位作者2019-01-21Journal of the American Chemical Society

Spiropyran molecular switches, in conjunction with transition metal ions, are shown to operate as reversible polymer cross-linkers. Solutions containing a spiropyran-functionalized polymer and transition metal ions underwent reversible thermally triggered (light-triggered) transient network formation (disruption) driv…

Supramolecular Self-Assembly in MaterialsPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics research

Sewing shirts with injured fingers and tears: exploring the experience of female garment workers health problems in Bangladesh

Sadika Akhter、Shannon Rutherford、Cordia Chu2019-01-21BMC International Health and Human Rights

BACKGROUND: The ready-made garment industry in Bangladesh not only contributes to the nation's economic development, but has created income opportunities for women, benefiting their whole family. However, these benefits come at considerable cost to the women. This research examines how the work environment and gendere…

Textile materials and evaluationsFashion and Cultural TextilesCrafts, Textile, and Design

Valorization of Industrial Lignin as Biobased Carbon Source in Fire Retardant System for Polyamide 11 Blends

Neeraj Mandlekar、Aurélie Cayla、François Rault 等 6 位作者2019-01-21Polymers

In this study, two different types of industrial lignin (i.e., lignosulphonate lignin (LL) and kraft lignin (DL)) were exploited as charring agents with phosphorus-based flame retardants for polyamide 11 (PA11). The effect of lignins on the thermal stability and fire behavior of PA11 combined with phosphinate additive…

biodegradable polymer synthesis and propertiesLignin and Wood ChemistryFlame retardant materials and properties

Effects of process parameters on the quality aspects of weld-bead in laser welding of NiTinol sheets

Susmita Datta、Mohammad Shahid Raza、Partha Saha 等 4 位作者2019-01-21Materials and Manufacturing Processes

The effects of process variables, like scan speed and laser power, on the quality of bead-on-plate welding of NiTinol sheets were investigated. The measured quality aspects for the weld-bead profile were bead geometry, changes in microstructure, variation of microhardness value along the weld-bead, extent of oxide con…

Advanced Welding Techniques AnalysisWelding Techniques and Residual StressesShape Memory Alloy Transformations

In Situ Growth of a High-Performance All-Solid-State Electrode for Flexible Supercapacitors Based on a PANI/CNT/EVA Composite

Xipeng Guan、Debin Kong、Huang Qin 等 8 位作者2019-01-21Polymers

For the development of light, flexible, and wearable electronic devices, it is crucial to develop energy storage components combining high capacity and flexibility. Herein, an all-solid-state supercapacitor is prepared through an in situ growth method. The electrode contains polyaniline deposited on a carbon nanotube…

Supercapacitor Materials and FabricationAdvanced Sensor and Energy Harvesting MaterialsConducting polymers and applications

Preparation and application performance study of biomass-based carbon materials with various morphologies by a hydrothermal/soft template method

Qiong Wu、Mingming Gao、Gaoyue Zhang 等 10 位作者2019-01-21Nanotechnology

Abstract Nitrogen-doped carbon materials with controllable morphologies were prepared via a soft template method using chitosan as the carbon and nitrogen source and F127 or ionic liquid as the template. The performance of the materials as electrodes and adsorbents for carbon dioxide removal were evaluated. Carbon sph…

Supercapacitor Materials and FabricationMembrane Separation and Gas TransportCovalent Organic Framework Applications

Poly( l -lactide) and Poly( l -lactide- co -trimethylene carbonate) Melt-Spun Fibers: Structure–Processing–Properties Relationship

Tiziana Fuoco、Torbjörn Mathisen、Anna Finne‐Wistrand2019-01-21Biomacromolecules

High Resolution Image Download MS PowerPoint Slide l -Lactide/trimethylene carbonate copolymers have been produced as multifilament fibers by high-speed melt-spinning. The relationship existing between the composition, processing parameters and physical properties of the fibers has been disclosed by analyzing how the…

biodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysisGraphene and Nanomaterials Applications

Investigation of Chitosan Nanoparticles Loaded with Protocatechuic Acid (PCA) for the Resistance of Pyricularia oryzae Fungus against Rice Blast

Thế Trịnh Phạm、Thi‐Hiep Nguyen、Thuan Vo Thi 等 11 位作者2019-01-21Polymers

In this study, chitosan nanoparticles were used as a carrier for Protocatechuic acid (PCA) to resist Pyricularia oryzae against rice blast. The final compound was characterized using zeta potentials for its surface electricity, Fourier transform infrared (FT-IR) analysis and transmission electron microscopy (TEM) were…

Essential Oils and Antimicrobial ActivityNanocomposite Films for Food PackagingMedicinal Plants and Neuroprotection

Nitrogen-Doped Hierarchically Porous Carbons Derived from Polybenzoxazine for Enhanced Supercapacitor Performance

Yanhui Wang、Liyan Dong、Guiping Lai 等 6 位作者2019-01-21Nanomaterials

Nitrogen-doped hierarchically porous carbons (HPCs), which are synthesized from benzoxazine resins, were successfully prepared following the processes of polymerization, carbonization, and potassium hydroxide (KOH) activation. As the key factor, the KOH activation temperature influences the pore structure and surface…

Supercapacitor Materials and FabricationConducting polymers and applicationsAdvanced battery technologies research

Artificial Sweeteners and Sugar Ingredients as Reducing Agent for Green Synthesis of Silver Nanoparticles

Shohreh Hemmati、Erin Lynn Retzlaff-Roberts、Corren A. Scott 等 4 位作者2019-01-21Journal of Nanomaterials

An environmentally friendly technique has been developed to produce metal nanoparticles using green synthesis methods. In this study, silver nanostructures were synthesized using different sugar substitutes and artificial sweeteners as green reducing agents in an aqueous solution at low temperature. The main ingredien…

Nanoparticles: synthesis and applicationsNanomaterials for catalytic reactions

Dimensional Control in Contorted Aromatic Materials

Samuel R. Peurifoy、Thomas J. Sisto、Fay Ng 等 6 位作者2019-01-21The Chemical Record

This Account details key developments in dimensional control of contorted aromatics for organic electronics. Coronene, perylene, pyrene, and [4]helicene, which are fragments of graphene, can be contorted using facile synthetic chemistry into large nanoribbons and nano-architectures. In comparing contorted or higher-di…

Organic Electronics and PhotovoltaicsGraphene research and applicationsFullerene Chemistry and Applications

Graphene‐based tunable near‐infrared absorber

Leena Thomas、Vishal Sorathiya、Shobhit K. Patel 等 4 位作者2019-01-21Microwave and Optical Technology Letters

Abstract We propose design of tunable high sensitive absorber for infrared spectrum using graphene layer. Proposed absorber structure is tunable over near‐infrared region of 900‐1000 nm. Tunability of reflector is achieved by different chemical potential of graphene. Parameters like absorption and reflectance of the d…

Graphene research and applicationsMetamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon Research

Impact of thermal processing or solvent casting upon crystallization of PLA nanocellulose and/or nanoclay composites

Jon Trifol、Martin van Drongelen、Francis Clegg 等 6 位作者2019-01-21Journal of Applied Polymer Science

ABSTRACT Here, we present how processing (solvent casting or isothermal crystallization) impacts crystallinity of poly(lactic acid) (PLA) and its nanocomposites (PLA/1 wt % cellulose nanofibers (CNFs), PLA/1 wt % nanoclay (C30B) or PLA/1 wt % CNF/1 wt % C30B. Polarized optical microscopy demonstrated a heterogeneous n…

Advanced Cellulose Research Studiesbiodegradable polymer synthesis and propertiesAdditive Manufacturing and 3D Printing Technologies

Schottky Barrier Height Modulation Using Interface Characteristics of MoS 2 Interlayer for Contact Structure

Seung‐Hwan Kim、Kyu Hyun Han、Gwang-Sik Kim 等 6 位作者2019-01-21ACS Applied Materials & Interfaces

Schottky barrier height (SBH) engineering of contact structures is a primary challenge to achieve high performance in nanoelectronic and optoelectronic applications. Although SBH can be lowered through various Fermi-level (FL) unpinning techniques, such as a metal/interlayer/semiconductor (MIS) structure, the room for…

2D Materials and ApplicationsNanowire Synthesis and ApplicationsSemiconductor materials and interfaces

Cancellous-Bone-like Porous Iron Scaffold Coated with Strontium Incorporated Octacalcium Phosphate Nanowhiskers for Bone Regeneration

Jin He、Haixia Ye、Yulei Li 等 7 位作者2019-01-21ACS Biomaterials Science & Engineering

The repair of large bone defects poses a grand challenge in tissue engineering. Thus, developing biocompatible scaffolds with mechanical and structural similarity to human cancellous bone is in great demand. Herein, we fabricated a three-dimensional (3D) porous iron (Fe) scaffold with interconnected pores via a templa…

Bone Tissue Engineering MaterialsMagnesium Alloys: Properties and ApplicationsNanoporous metals and alloys

Evaluation of biocompatibility and immunogenicity of micro/nanofiber materials based on tilapia skin collagen

Dongsheng Li、Yonglin Gao、Yunzhi Wang 等 8 位作者2019-01-21Journal of Biomaterials Applications

Type I collagen, used as a raw material, plays a pivotal role in the development of medical devices and tissue engineering. Due to the risk of zoonotic transmission and religious constraints for mammalian collagen, fish collagen gains increased attention and is widely seen as an alternative. In this study, two collage…

Electrospun Nanofibers in Biomedical ApplicationsSilk-based biomaterials and applicationsCollagen: Extraction and Characterization