Natural superfine down particles(NSDP) were successfully prepared and evaluated as an efficient adsorbent for the removal of acid brilliant scarlet 3R, direct fast scarlet 4BS and vat scarlet R from aqueous solution. ...
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Natural superfine down particles(NSDP) were successfully prepared and evaluated as an efficient adsorbent for the removal of acid brilliant scarlet 3R, direct fast scarlet 4BS and vat scarlet R from aqueous solution. The adsorbent was characterized by scanning electron microscopy(SEM), N2 adsorption and Fourier transform infrared(FTIR) spectroscopy. The adsorption behavior of NSDP for these three dyes was investigated as a function of *** results showed that the NSDP surface has an abundance of functional groups(carboxyl, hydroxyl and aminegroups). The adsorption capacity of NSDP was strongly pH-dependent. The maximum absorption capacity of the dyes onto the NSDP was observed at pH 3(108.84, 87.06, and 67.51mg/g). The results indicated that NSDP can be used as an efficient and economic adsorbent to remove dyes in the textile effluents.
Rechargeable Ni–Zn battery with aqueous alkaline electrolyte represents a low-cost, safe and environmentally benign battery technology but limited in energy density and inferior cycling stability. Herein, Zn doped Ni...
Rechargeable Ni–Zn battery with aqueous alkaline electrolyte represents a low-cost, safe and environmentally benign battery technology but limited in energy density and inferior cycling stability. Herein, Zn doped NiMn-layered double hydroxides have been proposed to enhance the specific capacity and cycle stability of Ni–Zn battery, which featuring lower Ni valence state and flower-like micro-structure. As a result, NiMn-LDH with 5 at% Zinc doping in can achieve a high mass-specific capacity of 294 mAh g−1 at 1 A g−1 and enhanced stability, manifesting one of the best cathode materials for Ni–Zn batteries. Moreover, the corresponding Ni–Zn battery behaves a high capacity of 180 mAh g−1 at 1 A g−1 and 100% retention after 1000 cycles. This work demonstrates the superiority of materials design in both elemental composition and hierarchical structure to achieve high performance in energy storage, which can be also adapted to other battery systems.
We show that the secret key generation rate can be balanced with the maximum secure distance of four-state continuous-variable quantum key distribution(CV-QKD) by using the linear optics cloning machine(LOCM). Ben...
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We show that the secret key generation rate can be balanced with the maximum secure distance of four-state continuous-variable quantum key distribution(CV-QKD) by using the linear optics cloning machine(LOCM). Benefiting from the LOCM operation, the LOCM-tuned noise can be employed by the reference partner of reconciliation to achieve higher secret key generation rates over a long distance. Simulation results show that the LOCM operation can flexibly regulate the secret key generation rate and the maximum secure distance and improve the performance of four-state CV-QKD protocol by dynamically tuning parameters in an appropriate range.
Zwitterionic polymer brushes based on cysteine methacrylate(Cys MA) were successfully grafted to polysulfone substrates by surface-initiated atomic-transfer radical polymerization(SI-ATRP),and exhibited excellent anti...
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Zwitterionic polymer brushes based on cysteine methacrylate(Cys MA) were successfully grafted to polysulfone substrates by surface-initiated atomic-transfer radical polymerization(SI-ATRP),and exhibited excellent antifouling *** characterization techniques,including attenuated total reflectance Fourier transform infrared spectra(ATR-FTIR),atomic force microscopy(AFM),and X-ray photoelectron spectroscopy(XPS) were used to characterize the polymer brush-modified polysulfone ***,the hydrophilicity and anti-biofouling activities of the polymer brush substrates were *** experimental results showed that the p Cys MA displays better hydrophilicity and effectively resisted the adsorption of bovine serum albumin(BSA) protein.
Following publication of this article[1],the page number in ref.55 was incorrect and should have been 10009 rather than *** the Author contribution section of this article,the authors get the support from *** Chen,so ...
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Following publication of this article[1],the page number in ref.55 was incorrect and should have been 10009 rather than *** the Author contribution section of this article,the authors get the support from *** Chen,so it should be revised as:“QMZ and JM conducted the *** and ZZ grew NaYbS2 polycrystalline samples and single crystals.
The effects of spin-orbit coupling and symmetry breaking at the interface between a ferromagnet and heavy metal are particularly important for spin-based information storage and computation. Recent discoveries suggest...
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The effects of spin-orbit coupling and symmetry breaking at the interface between a ferromagnet and heavy metal are particularly important for spin-based information storage and computation. Recent discoveries suggest they can create novel chiral spin structures (e.g., skyrmions), which have often been identified through the appearance of the bump/dip features of Hall signals, the so-called topological Hall effect (THE). In this work, however, we present an unusual anomalous Hall effect (UAHE) in MnxGa/Pt bilayers and demonstrate that the features extremely similar to THE can be generated without involving any chiral spin structures. Low-temperature magnetic force microscopy has been used to explore the magnetic field-dependent behavior of spin structures, and the UAHE as a function of magnetic field does not peak near the maximal density of magnetic bubbles. Our results unambiguously evidence that the UAHE in MnxGa/Pt bilayers shows no correlation with chiral spin structures but is driven by the modified interfacial properties, indicating a wealth of underlying and interesting physics.
Large dimensional bulk 1020 carbon steel with nanolaminate pearlite was rolled at 600°C with different thickness *** the increase of thickness reduction,the dislocation density increased gradually,meanwhile the t...
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Large dimensional bulk 1020 carbon steel with nanolaminate pearlite was rolled at 600°C with different thickness *** the increase of thickness reduction,the dislocation density increased gradually,meanwhile the tensile strength improved *** possesses the key combination of three characteristics about high density dislocation,nanolamination,and second-phase *** results of microstructure observation and tensile test show that when the thickness reduction was 60%,most of the lamellar cementites were crushed to globular particles,the tensile strength reached 560 MPa,and the elongation is 14%.The present study provides an easy route to enhance the mechanical properties of these alloys,and it has a wide application potential.
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