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首页> 外文期刊>RSC Advances >Recovery of indium tin oxide (ITO) and glass plate from discarded TFT-LCD panels using an electrochemical method and acid treatment
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Recovery of indium tin oxide (ITO) and glass plate from discarded TFT-LCD panels using an electrochemical method and acid treatment

机译：使用电化学方法和酸处理从废弃的TFT-LCD面板中回收氧化铟锡（ITO）和玻璃板

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The recovery of ITO and the glass substrate from discarded TFT-LCDs, without crushing the glass substrate, was done by using an electrochemical method and acid treatments. Anodic conditions did not show any redox reaction of the ITO except oxygen evolution. The oxygen evolution lifted the ITO layer off the glass substrate with the remaining colour filer and black matrix. Recovery of the ITO was 75%, but it showed an In-Sn ratio of 15.9 : 1. The recovered ITO was not suitable for reuse directly. It may be that it needed the addition of extra Sn. However, this work presented a new process for the resource circulation of the indium from discarded LCD panels. The free glass substrate was then recovered after removing the colour filter and black matrix by using an acid solution. The optical transmittance of the recovered glass substrate was about 90% in the visible region, and the average roughness was 0.96 nm.
机译：通过使用电化学方法和酸处理，在不压碎玻璃基板的情况下从废弃的TFT-LCD中回收ITO和玻璃基板。阳极条件除放出氧气外没有显示出ITO的任何氧化还原反应。放出的氧气将ITO层与剩余的彩色滤光片和黑色矩阵从玻璃基板上提起。 ITO的回收率为75％，但In-Sn比率为15.9：1。回收的ITO不适合直接重复使用。可能是需要添加额外的锡。但是，这项工作提出了一种废弃LCD面板中铟资源循环的新方法。然后，通过使用酸溶液除去滤色器和黑底之后，回收自由的玻璃基板。回收的玻璃基板在可见光区域的透光率约为90％，平均粗糙度为0.96nm。

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