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AgBr/Ag3PO4 composite quasi-microcubes were fabricated by a simple ultrasonic synthesis method, in which hexadecyltrimethylammonium bromide was used as Br resource and surfactant. The structures and morphologies of the as-obtained product were initially characterised by X-ray diffraction, field emission scanning electron microscopy and energy dispersive X-ray analysis spectroscopy. The ultraviolet–visible diffuse reflectance spectrum of the as-obtained products demonstrated that this hybrid structure exhibits an enhanced absorption ability in the visible region. Furthermore, the composite products exhibit much higher photocatalytic performance and stability on degradation of rhodamine B dye under the stimulated sunlight irradiation compared with pure AgBr and Ag3PO4.

A novel indexable TiC-based cermet tool (named tool A) with intra/intergranular microstructure has been designed and fabricated in application of face milling of a medium carbon steel (AISI 1045) in the dry condition comparison with commercial WC-Co tool (named tool B). Compared to the tool B, the newly as-prepared cermet tool A had an advantage of high speed cutting performances in cutting carton steel. Wear behavior was investigated in order to better understand the relationship between outstanding cutting properties and microstructure. The improved cutting performance of tool A can be attributed to the rim reinforced by TiN nanoparticles.

Beauty toothpaste, which can whiten teeth and refresh breath, is becoming more and more popular in the market. This paper studies the feasibility of applying zinc zeolite in toothpaste, including the preparation method of zinc zeolite toothpaste, quality index test, bacteriostasis test, stain removal test and halitosis reduction test. The results show that the quality of zinc zeolite toothpaste meets the requirements of china national standards. The bacteriostasis rate of 5% zinc zeolite toothpaste to Staphylococcus aureus and Escherichia coli can reach 99.9%. Zinc zeolite toothpaste has obvious effect of removing stains and halitosis. The conclusion of this paper is that zinc zeolite toothpaste is a safe and effective cosmetic toothpaste, which can be produced in batches.

Porous hematite (α-Fe 2 O 3 ) nanomaterials can be simply acquired from amorphous iron (III) hydroxide (Fe (OH) 3 ) in neutral solution by an evaporation method in an open quartz flask in a vacuum drying oven. Results show that the as-obtained α-Fe 2 O 3 particles at 180°C for 2h or so are nearly spindle in shape. Each of α-Fe 2 O 3 microspindles is made of many ultrafine α-Fe 2 O 3 nanoparticles and results in a porous structure. The as-prepared porous α-Fe 2 O 3 powders have higher surface area (~78m 2 /g) and can rapidly remove Cr (VI) ions in wastewater at room temperature. The model of the adsorption kinetic of Cr (VI) is best adapted to the pseudo second-order equation. Keywords: Hematite, Thermal evaporation, Porous structure, Removal of Cr (VI) e-mail: hfuuhan@163.com 1. For Cr (VI) -adsorption: The aqueous solutions with constant Cr (VI) INTRODUCTION The design and synthesis of various morphologies nanostructures have been important research subjects in nanoscience and nanotechnology due to their unique size and shape-dependent chemical and physical properties. Nanosturctured hematite (α-Fe

Hierarchical hollow CuO submicrospheres have been fabricated on a large scale by a facile one-pot sonochemical process in the absence of surfactants and additives. The as-prepared products were investigated by XRD, FESEM, EDX, TEM, SAED, HRTEM and BET nitrogen adsorption–desorption isotherms. The results reveal that hollow pumpkin-shaped structures possess a monoclinic phase CuO with the diameters ranging from 400 to 500 nm, and their walls with around 45 nm in thickness are composed of numerous single crystalline CuO nanoribbons with a width of about 8 nm. The BET specific surface area of the as-synthesized CuO hollow structures was measured to be 59.60 m 2 /g, and the single point adsorption total pore volume was measured to be 0.1036 cm 3 /g. A possible growth mechanism for the formation of hierarchical hollow CuO structures was proposed, which is considered to be a sonohydrolysis – oriented aggregation – Ostwald ripening process. The novel hollow CuO spherical structures may utilize applications in biosensors, photonics, electronics, and catalysts.

Step-wise self-assembled flower-like δ-Bi2O3 microspheres from nanoparticles to nanosheets to microspheres were fabricated via a simple hydrothermal process, using glycine and Bi (NO3)3·5H2O as starting materials without other additives. The crystal structures and morphologies of the as-obtained samples were characterised by X-ray powder diffraction, field emission scanning electron microscope and transmission electron microscopy. The UV–vis diffuse reflectance spectrum of the sample showed the product has an intense absorption in UV light regions and an estimated bandgap 3.55 eV. Moreover, under UV-light irradiation the sample exhibited high photocatalytic behaviour for the degradation of rhodamine B dye and excellent stability, which possibly has a board application in wastewater disposal fields.