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非均相光芬顿催化剂发展研究
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Abstract:
光芬顿技术是一种操作简便且环境友好的高级氧化技术，其产生的羟基自由基及其他反应活性物种常用于难降解有机污染物的处理，因此光芬顿技术现已在环境污染治理领域得到了广泛应用。但是传统光芬顿技术在应用中存在Fe2+与Fe3+之间转换速率慢、H2O2利用率低以及芬顿试剂难以回收利用等缺陷。为了解决这些问题，研究者们通过引入不同光敏材料对传统催化剂进行改性制备成复合催化剂以解决传统光芬顿技术的缺陷，从而提高催化活性。本文简单介绍了芬顿技术和光芬顿技术，提出了非均相技术的优化思路，并对其发展前景进行展望。
Photo-Fenton technology is a simple and environment-friendly advanced oxidation technology. The hydroxyl radical and other reactive species produced by it are often used in the treatment of refractory organic pollutants. Therefore, Photo-Fenton technology has been widely used in the field of environmental pollution control. However, there are some defects in the application of traditional Photo-Fenton technology, such as slow conversion rate between Fe2+ and Fe3+, low utilization rate of H2O2 and difficult recycling of Fenton reagent. In order to solve these problems, researchers modified the traditional catalysts by introducing different photosensitive materials to prepare composite catalysts to solve the defects of the traditional Photo-Fenton technology and improve the catalytic activity. In this paper, Fenton technology and Photo-Fenton technology are briefly introduced, the optimization idea of heterogeneous technology is put forward, and its development prospect is prospected.
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