Hydrogen peroxide (H2O2), known as a green and sustainable solvent, is one of top 100 most important chemicals in the world. Hydrogen peroxide has wide applications such as in paper industry, textile industry and detoxification and color removal for wastewater. The wastewater treatment application is of particular interest because only less than 1% of water resources on earth are accessible for human usages. Frequently, pollutants from urban, industrial, and agricultural human activities contaminate these available water resources. Majority of these pollutants are only be oxidized into harmless products without generating waste in water by hydrogen peroxide. In contrast to adding H2O2 to water, it is very attractive to directly convert water to H2O2 on a photoanode (eq. 1) using sunlight, and to evolve hydrogen gas (H2) (eq. 2) on the photocathode. Such system provides a clean process to produce two valuable chemicals: hydrogen gas and hydrogen peroxide (eq. 3) while purifying the water.
展开▼
机译：过氧化氢（H2O2），称为绿色和可持续溶剂，是世界上最重要的化学品之一。过氧化氢具有广泛的应用，例如造纸工业，纺织工业和废水中的排毒和色素除尘。废水处理申请特别令人感兴趣，因为人类使用只有少于1％的地球水资源。通常，来自城市，工业和农业人类活动的污染物污染了这些可用的水资源。这些污染物中的大部分仅被氧化成无害的产品，而不会通过过氧化氢在水中产生废物。与将H 2 O 2加入水相反，使用阳光直接在光电码（EQ.1）上直接将水转化为H 2 O 2，并在光电阴极上演化氢气（EQ.2）。这种系统提供了一种干净的方法，以产生两种有价值的化学品：净化水的氢气和过氧化氢（EQ.3）。
展开▼
