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首页> 外文会议>Annual World Conference on Carbon >CHARACTERIZATION AND PHOTOCATALYTIC MECHANISM OF WO3/CNT COUPLED TiO2 NANOCRYSTALS UNDER UV LIGHT IRRADIATION
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CHARACTERIZATION AND PHOTOCATALYTIC MECHANISM OF WO3/CNT COUPLED TiO2 NANOCRYSTALS UNDER UV LIGHT IRRADIATION

机译：紫外光照射下WO3 / CNT偶联TiO2纳米晶体的表征和光催化机理

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Tungsten oxides (WO_x, x=1—3) have attracted constant research interest over the past few decades due to their wide applicability as gas sensors for SO2 and H2S [1,2], as excellent field emitters (specifically W_(18)O_(49)). In addition, to improve the TiO2 photocatalytic efficiency, tungsten oxide WO3 compounded with TiO2 was also used to decompose wastewater and air contaminants. Zhang et al [3]. reported that WO3 thin films sputtered on TiO2 can improve the rate of photo-catalytic degradation of methylene blue. However, the WO3/TiO2 photocatalyst has some shortcomings. For example, a combined WO3 semiconductor can easy to become a recombination center for photo-electron-hole pairs, and has a low specific surface area in most cases, which can limit the rate of photodegradation meanwhile there are some dispersion problems due to this nanoparticles are easy to cohere. To solve the problems, a good surport carbon material MWCNTs was used in this study due to its unique mechanical, optical, and electrical properties that may impact many fields of science and technology.
机译：由于SO2和H2S [1,2]的气体传感器，钨氧化物（WO_X，X = 1-3）吸引了过去几十年的持续研究兴趣，因为它们是SO2和H2S [1,2]的气体传感器，如优异的场发射器（特别是W_（18）O_ （49））。此外，为了改善TiO 2光催化效率，用TiO 2配混氧化钨WO3还用于分解废水和空气污染物。张等[3]。据报道，TiO3上溅射的WO3薄膜可以提高亚甲基蓝光催化降解的速率。然而，WO3 / TiO2光催化剂具有一些缺点。例如，组合的WO3半导体可以易于成为光电 - 空穴对的重组中心，并且在大多数情况下具有低比表面积，这可以限制光降解速率，同时由于该纳米颗粒存在一些分散问题很容易康复。为了解决问题，由于其可能影响许多科学和技术领域的独特机械，光学和电气性能，在本研究中使用了良好的渠道碳材料MWCNT。

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