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首页> 外文期刊>Separation and Purification Technology >Synthesis, characterisation and separation of photoreactive Hydrogen-titanate nanofibrous channel
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Synthesis, characterisation and separation of photoreactive Hydrogen-titanate nanofibrous channel

机译：光反应性钛酸氢盐纳米纤维通道的合成，表征和分离

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Australia is the world's largest wool producing country, accounting for about 25-30% of world production. As a biotemplate, we explored the possibility of using wool to produce micro-channel of Hydrogen-titanate nanofibres through morphology transcription of wool microfibres. Hydrothermal method was adopted to synthesise titanate nanofibres. A facile method of impregnation followed by incineration at 600 °C was utilised to prepare the nanofibrous channel. Anatase undoped nanofibrous (average nanofibre diameter = 44 nm) channel of around 50 μm in length and an average diameter of 9.5 μm were obtained. The photocatalytic activity of nanofibrous channel was monitored under UV irradiation for the decomposition of humic acid in aqueous solution using an aerobic batch reactor system. The photodegradation results showed that UV254 absorbing moeities and DOC were respectively reduced by 82% and 66% after 3 h of photoreaction at 1 g/L catalyst load. The novel nanofibrous channel could be easily separated from the aqueous suspension by sedimentation after the end of the photocatalytic reaction.
机译：澳大利亚是世界上最大的羊毛生产国，约占世界产量的25-30％。作为一个生物模板，我们探索了使用羊毛通过羊毛微纤维的形态转录来生产氢钛酸纳米纤维微通道的可能性。采用水热法合成了钛酸酯纳米纤维。利用一种简便的浸渍方法，然后在600°C下进行焚烧来制备纳米纤维通道。获得了长度约为50μm，平均直径为9.5μm的锐钛矿无掺杂纳米纤维（平均纳米纤维直径= 44 nm）通道。使用好氧间歇反应器系统在紫外线辐射下监测纳米纤维通道的光催化活性，以分析腐殖酸在水溶液中的分解情况。光降解结果表明，在1 g / L的催化剂负载下，光反应3 h后，UV254吸收部分和DOC分别降低了82％和66％。在光催化反应结束后，通过沉降可以很容易地从水悬浮液中分离出新型的纳米纤维通道。

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