The following work provides a perspective on the potential application of solar heterogeneous photocatalysis, which is a nonselective advanced oxidation process considered as a sustainable technology, to assist in arsenic removal from water, which is a global threat to human health. Heterogeneous photocatalysis can oxidize trivalent arsenic to pentavalent arsenic, decreasing its toxicity and easing its removal with other technologies, such as chemical precipitation and adsorption. Several lab-scale arsenic photocatalytic oxidation and diverse solar heterogeneous photocatalytic operations carried out in different reactor designs are analyzed. It was found out that this technology has not been translated to operational pilot plant scale prototypes. General research on reactors is scarce, comprising a small percentage of the photocatalysis related scientific literature. It was possible to elucidate some operational parameters that a reactor must comply to operate efficiently. Reports on small-scale application shed light that in areas where other water purification technologies are economically and/or technically not suitable, and the solar energy is available, shed light on the fact that solar heterogeneous photocatalysis is highly promissory within a water purification process for removal of arsenic from water.

以下工作为太阳能非均相光催化的潜在应用提供了一个视角，这是一种被认为是一种可持续技术的非选择性高级氧化过程，有助于从水中去除砷，这是对人类健康的全球威胁。多相光催化可以将三价砷氧化为五价砷，从而降低其毒性并易于使用其他技术（如化学沉淀和吸附）将其去除。分析了在不同反应器设计中进行的几种实验室规模的砷光催化氧化和各种太阳能非均相光催化操作。发现该技术尚未转化为可操作的中试工厂规模原型。对反应堆的一般研究很少，占光催化相关科学文献的一小部分。有可能阐明反应堆必须遵守的一些运行参数才能有效运行。关于小规模应用的报告表明，在其他水净化技术在经济和/或技术上不适合且太阳能可用的地区，太阳能非均相光催化在水净化过程中非常有希望从水中去除砷。