[3D Porous Photothermal Materials for High Salt Wastewater Treatment].

The treatment of high salinity wastewater is complex with high cost and energy consumption. Interfacial solar vapor generation technology because of its green, high efficiency and low energy consumption has become a hot spot in the field of water resource recovery and utilization. In this study, a novel three-dimensional porous graphene composite material (3D h-CN/r-GO) was designed by a hydrothermal reaction with fibrous carbon nitrogen (h-CN) modified graphene (r-GO), and its performance for adsorption of nitrobenzene and phenol as simulated contaminants via photothermal evaporation was studied. The results showed that 3D h-CN/r-GO has a broad-spectrum absorption and multistage channel structure and presents the characteristics of fast thermal response. Its light steam conversion efficiency can reach 90.4% under the condition of simulated sunlight. The adsorption of nitrobenzene, phenol, and other common volatile pollutants can be realized in the process of treatment, and its adsorption capacities of nitrobenzene and phenol were 67.6 mg·g-1 and 57.5 mg·g-1, respectively. Moreover, 3D h-CN/r-GO can realize efficient interfacial solar vapor generation with long-time stability, and its retention rate of pollutants and salts is up to 98%. The recovery and utilization of steam condensate meets the discharge standard. Therefore, this study provides a promising way for the treatment of high salinity wastewater with low energy consumption and cost.

Sustainable synthesis of novel carbon microwires for the modification of a Ti mesh anode in bioelectrochemical systems.

Herein, an effective method was developed to integrate carbon microwires on Ti mesh (denoted as CM/TiM) to fabricate high-performance anodes with long-time stability in microbial fuel cell. CM/TiM was synthesized by colonizing filamentous fungi on the bread modified Ti mesh followed by carbonization, which could convert the attached mycelium into carbon microwires (denoted as CM). Benefiting from the biocompatibility and 3D interlaced structure of carbon microwires, the biomass accumulation (1027 ±â€¯83 µg cm-2) of CM/TiM have been significantly improved nearly 3 folds, thus the fabricated CM/TiM demonstrated 2-fold higher current density (12.19 ±â€¯0.07 A m-2) with significantly increased stability compared with TiM. Therefore, the present high power output, chemical stability and hydrophilic carbon microwires make CM/TiM stable, scalable and environmentally sustainable anodes in bioelectrochemical systems.

A four-part setting on examining the anxiety-provoking capacity of the sound of dental equipment.

This paper reports the results of a four-part questionnaire survey to assess the effects of the sound of dental equipment on people's perceptions and dental anxiety levels. The convenience sample for the survey comprised 230 dental students and 230 gender and age matched non-dental university students. The subjects were requested to complete the questionnaires themselves. The results show that the sound of dental equipment has a great influence on dental anxiety. Dental students, who are more familiar with the operation of this equipment, are less prone to anxiety when they hear its sound than their non-dental counterparts.

Anti-inflammatory activity of myricetin isolated from Myrica rubra Sieb. et Zucc. leaves.

MYRICA RUBRA Sieb. et Zucc. leaves are commonly used in folk medicine to treat inflammatory disorders in China. Present studies on the anti-inflammatory effect of myricetin from MYRICA RUBRA Sieb. et Zucc. leaves was evaluated with various IN VIVO models of both acute and chronic inflammations such as xylene-induced ear edema, acetic acid-induced vascular permeability, carrageenan-induced paw edema, leukocyte migration assay, and cotton pellet granuloma models. Myricetin showed a significant inhibition on ear edema and hind paw edema caused by xylene and carrageenan, respectively. Furthermore, it also inhibited the increase in capillary permeability induced by the production of acetic acid in the human body. Myricetin significantly decreased the serum levels of MDA and, in turn, increased the serum levels of SOD in the carrageenan-induced paw edema model. Concurrently, myricetin also significantly decreased leukocyte count. During chronic inflammation, myricetin inhibited the formation of granuloma tissue. These results, collectively, demonstrate that myricetin possesses a potent anti-inflammatory function on acute and chronic inflammation. Its anti-inflammatory mechanisms are probably associated with the inhibition of antioxidant activity. These results also support the claims of traditional Chinese medicine practitioners about the use of MYRICA RUBRA Sieb. et Zucc. leaves in the treatment of inflammatory diseases.

Bisurfactant-controlled synthesis of three-dimensional YBO3/Eu3+ architectures with tunable wettability.

Three-dimensional (3D) architectures of YBO(3)/Eu(3+) with different morphologies such as nest-like, rose-like, cruller-like, and flower-like, were hydrothermally synthesized by simply adjusting the ratios of surfactant polyethylene glycol-6000 (PEG-6000) to octadecylamine (ODA). These 3D architectures were all self-assembled by nanoflakes. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FE-SEM), and photoluminescence (PL) spectra were used to characterize the morphology and structures of the samples. PEG-6000, ODA, and the ODA/PEG ratio played important roles in the formation process of various architectures. Rose-like architecture was chosen as a candidate, and the formation mechanism of the architecture was proposed on the basis of XRD analysis and SEM observation of the products at different reaction periods of time. As-synthesized samples displayed strong emission located at 591, 610, and 615 nm. Water contact angle measurements indicated that the films fabricated by the samples obtained under the different ratios of PEG-6000/ODA could exhibit tunable wettability ranging from superhydrophilicity to superhydrophobicity. This kind of one-pot bisurfactant-controlled hydrothermal synthesis method reported here provides a new strategy to realize the surfaces of functional materials with tunable wettability.