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In this work, we prepared for the first time a class of novel heterojunctions of BiOBr–BiVO₄ fabricated by depositing BiOBr nanoflakes onto the surface of BiVO₄. The optimum photocatalytic activity of the 0.925BiOBr–0.075BiVO₄ heterojunction was almost 14 and 144 times as high as those of individual BiOBr and BiVO₄ in visible-light degradation of methylene blue. Photogenerated holes of BiVO4 would play a dominant role in the photocatalytic system.

A new kind of 5 at% Yb-doped Lu_0.5Y_0.5PO₄ crystals were firstly grown by spontaneously nucleated high-temperature solution method using lead pyrophosphate (Pb₂P₂O₇) as the solvent. The X-ray powder diffraction (XRPD) patterns recorded at room temperature showed the crystals possessed tetragonal xenotime structure. The polarized absorption spectra and the fluorescence spectra of Yb:Lu_xY_1-xPO₄ were measured at room temperature, respectively. The results show that Yb:Lu_xY_1-xPO₄ mixed crystal...

DAST crystal is a kind of promising candidate for the generation and detection of terahertz wave. High-quality DAST crystals were grown by slope nucleation method, and widely tunable terahertz waves ranging from 1.16 to 16.71 THz were generated from 1 mm-thick DAST crystal using the optical parametric oscillator. It was obtained that the THz output energy was 27.4 nJ (peak power of 2.74 W).

Porous nanowires with large surface area are advantageous for device applications. However, the synthesis of this kind of nanostructure has rarely been reported. In this paper, quasi-aligned ZnO nanowire arrays with porous surfaces were successfully fabricated via a facile chemical method. Time-dependent experiments have also been carried out to better understand the formation process of porous structure on the nanowire surface.

Here a simple solvothermal technique was adopted to synthesize uniform CIS and CIGS nanomaterials. The influence of surfactant, temperature, Ga amount on the structure, morphology, phase and spectral properties was analyzed. The results show that CIS and CIGS nanomaterials can be obtained at 200 °C. PVP-30 can greatly improve the dispersion of nanoparticles. UV-vis-NIR spectra show that the absorption peak and absorption edge of CIGS obviously shift to a lower energy compared with CIS.

Four methods including hydrothermal method, glycol-hydrothermal method, microwave-hydrothermal method and glycol-microwave-hydrothermal method were used to prepare magnesium oxide precursor by the reaction of MgSO₄·7H₂O with (NH₄)₂CO₃. The glycol-hydrothermal method can create high quality Magnesium Oxide precursor with a high degree of crystallinity, high purity, high aspect ratio, smooth surface, and good dispersibility.

The manuscript is devoted to the microstructure – strength relationship of KDP crystals containing organic molecules and the ones with incorporated TiO₂ nanoparticles. It is found that differences in the structure formation mechanism result in the opposite influence of the additives on the mechanical properties and the laser damage threshold of KDP crystal.

A facile hydrothermal method for the syntheses of Ag₅P₃O₁₀, Ag₄P₂O₇/Ag₃PO₄ and Ag₃PO₄ nanostructures was developed. The photocatalytic activities were evaluated by the degradation of organic pollutants under simulated sunlight irradiation. The photocatalytic mechanism was systematically investigated.

Graphene oxide was used as a temple to induce the formation of flower-like ZnO microparticals compared with classical surfactants. The flower-like ZnO microparticals were gained by calcining zinc hydroxide carbonate. The photocatalytic activity of the flower-like ZnO microparticals was evaluated by photo degradation reaction of rhodamine B (RhB) which was better than ZnO microparticals formed in the CTAB and BS-12.