Hydrothermal synthesis of SnO 2 –Zn 2 SnO 4 –graphene composites with high activity for photodegradation of rhodamine B

Micro & nano letters

article

Yan Wang¹  Gaojie Li²  Jianliang Cao² 

[1] School of Safety Science and Engineering, Henan Polytechnic University;School of Materials Science and Engineering, Henan Polytechnic University

关键词: dyes;    nitrogen;    graphene;    tin compounds;    zinc compounds;    composite materials;    catalysts;    crystal growth from solution;    X-ray diffraction;    Raman spectra;    transmission electron microscopy;    adsorption;    catalysis;    photochemistry;    electron-hole recombination;    hydrothermal synthesis;    rhodamine B photodegradation;    composite photocatalysts;    ethanol-water solvent;    X-ray diffraction;    Raman spectroscopy;    transmission electron microscopy;    N2-sorption;    photocatalytic degradation activity;    UV-light irradiation;    aqueous solution;    molecule adsorbability;    photocatalytic reaction centres;    photogenerated electron-hole pair recombination;    graphene;    SnO2-Zn2SnO4-C;    N2;   

DOI  :  10.1049/mnl.2015.0114

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Background and Aims: To study and compare the time taken, success and ease of awake tracheal intubation using lightwand-guided ILMA and LMA CTrachTM after application of manual in-line stabilization, in adult patients with simulated cervical spine injury. Methodology: Eighty adult patients were randomized into two groups. In ILMA–LW group trachea was intubated using lightwand-guided ILMA and in LMA CTrachTM group using CTrachTM LMA. After anesthetizing patient’s airway with topical local anesthetic, manual in-line stabilization was applied by an assistant, study device was inserted and trachea was intubated through it. The time taken, success and ease of tracheal intubation was noted. The observations of the study were compiled and analyzed statistically. Fischer´s exact test and Chi-square test were used for qualitative data. Quantitative data within groups was analyzed using paired t-test and non-parametric Wilcoxon signed rank test and for quantitative data between groups, Student´s t-test and Wilcoxon Mann Whitney test was used. The level of statistical significance was taken as p < 0.05. Results: The mean time required for tracheal intubation was 47.86 ± 11.76 sec in ILMA–LW group as compared to 64.84 ± 15.97 sec in LMA CTrachTM group (p < 0.001). Success of tracheal intubation was 87.5% and 80% in group ILMA-LW and group LMA CTrachTM respectively (p = 0.363). Ease of intubation, number of adjusting maneuvers and intubation attempts, hemodynamic parameters, post-operative oropharyngolaryngeal morbidity and patient’s experience of the procedure were comparable between the two groups. Conclusion: In patients with simulated cervical spine injury after application of manual in-line stabilization, awake tracheal intubation through lightwand-guided ILMA (ILMA-LW) was significantly faster than LMA CTrachTM with comparable success and ease of intubation.

【 授权许可】

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