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首页> 外文期刊>Catalysis science & technology >Synthesis of Mn-doped and anatase/rutile mixed-phase TiO2 nanofibers for high photoactivity performance
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Synthesis of Mn-doped and anatase/rutile mixed-phase TiO2 nanofibers for high photoactivity performance

机译：合成Mn-doped和锐钛矿和金红石混合相位二氧化钛纳米纤维为高感光性能

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摘要

In this experiment, Mn@TiO2 nanofibers in the form of membranes were fabricated by ordinary electrospinning and a higher temperature calcination process. Field-emission scanning, X-ray diffraction analysis, X-ray photoelectron spectroscopy, Raman spectra, UV-visible diffuse spectra, UV-visible spectroscopy, and Brunauer-Emmett-Teller (BET) evaluation were used to characterize the resulting samples. The study revealed that, upon the addition of the manganese ion, the continuous and mechanical properties of the nanofibers and nanofilms were substantially enhanced. Notably, after 60 minutes, the Mn@TiO2-0.10 degradation efficiency reached 94.92% under ultraviolet light, which was 5 times greater than that for TiO2 nanofibers. It was due to the controlled mixture phase and palpable raised specific surface area, which ensured a pronounced enhanced photocatalytic activity of the nanofibers. In addition, the application of nanofibers on the capacitor aspect was explored by electrochemical workstations. The highest photoactivity sample performed mass-specific capacity as high as 5.09 F g(-1). Such efficient capacity and higher photoactivity of the photocatalyst shed light on the preparation of soft inorganic materials and their application in energy conversion.
机译：在这个实验中,Mn@TiO2纳米纤维的形成膜被普通的捏造电纺的和更高的温度煅烧过程。x射线衍射分析、x射线光电子光谱,拉曼光谱,紫外可见漫反射光谱、紫外可见光谱和Brunauer-Emmett-Teller(打赌)评价描述的样本。显示,添加锰离子,连续和力学性能纳米纤维和纳米薄膜增强。mn@tio2 - 0.10降解效率94.92%在紫外线照射下,5次比二氧化钛纳米纤维。控制混合阶段和明显的提高了比表面积,这确保了明显增强的光催化活性纳米纤维。探讨了纳米纤维在电容器方面通过电化学工作站。光敏样本执行mass-specific容量高达5.09 g F(1)。能力和更高的感光的光催化剂阐明的准备软无机材料及其应用能量转换。

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