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Solar water purification with PET bottles coated with titanium dioxide using improved binding agents.

机译：使用改进的粘合剂，用涂有二氧化钛的PET瓶净化太阳能水。

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Solar water purification with polyethylene terephthalate (PET) bottles coated with the photocatalyst TiO2 has been shown to be very effective. Replacements for perchloric acid as a binding agent were sought. Through experiments, it was found that titanium dioxide thin films could be deposited on the surface of PET bottles by creating a suspension with distilled water, titanium dioxide and any of seven binding agents. The photoactivity of each titanium dioxide thin film was compared by filling 500 ml PET bottles with a mixture of distilled water and indicator dye indigo carmine and subjecting them to solar radiation. The photocatalytic effectiveness of each thin film was determined by measuring the temporal presence of indigo carmine using a spectrophotometer. It was found that all thin films behaved in a similar fashion despite different masses of titania being present on each bottle. Sodium acetate was found to be the best overall replacement for perchloric acid because it performed as well as perchloric acid in photocatalytic testing, is inexpensive, has a desirable safety rating, and can be manufactured in remote areas with baking soda and vinegar.
机译：用涂有光催化剂TiO2的聚对苯二甲酸乙二醇酯（PET）瓶进行的太阳能水净化已被证明是非常有效的。寻找替代高氯酸作为粘合剂。通过实验发现，通过用蒸馏水，二氧化钛和七种粘合剂中的任何一种形成悬浮液，二氧化钛薄膜可以沉积在PET瓶的表面。通过用蒸馏水和指示染料靛蓝胭脂红的混合物填充500 ml PET瓶并使其经受太阳辐射来比较每个二氧化钛薄膜的光活性。通过使用分光光度计测量靛蓝胭脂红的瞬时存在来确定每个薄膜的光催化效力。已发现，尽管每个瓶子上都存在不同质量的二氧化钛，但所有薄膜的表现方式都相似。发现乙酸钠是高氯酸的最佳整体替代品，因为在光催化测试中，乙酸钠的性能与高氯酸相同，而且价格便宜，具有令人满意的安全等级，并且可以在偏远地区用小苏打和醋制造。

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