Recently, the reporter learned from Shanghai Jiaotong University that the team of Zhou Baoxue, a professor of the School of Environmental Science and Engineering of the university, has made breakthroughs in the monitoring of chemical oxygen demand (COD), the treatment of toxic and hazardous organic pollutants that are difficult to degrade, and the hydrogen decomposition of sunlight, and related achievements. As a review article has been published online in the "Chemical Review."
Nano-titanium dioxide has important application prospects in the fields of environmental sensors, environmental purification, and utilization of sunlight, and has become a hot topic in the research of environmental functional materials in recent years. However, due to the serious charge recombination, low quantum efficiency, and wide band gap, the traditional nano-TiO2 material restricts the wide application of nano-TiO2.
Based on the research on the design, preparation, structure and performance of TiO2 nanotube arrays, the team effectively solved the problem of severe photo-assisted charge compounding and low quantum efficiency of powder nano-TiO2 materials and invented a new type of TiO2 nanotube array COD. Sensors, and thus establish a fast, accurate, green photoelectrocatalytic COD monitoring new method for the rapid and accurate determination of COD and COD wireless sensory monitoring laid the foundation.
At present, the team has developed a series of prototypes for COD photoelectrocatalysis, which are used in various types of environmental monitoring. At the same time, based on the prepared titanium dioxide nanotube array materials and related composite materials, a new type of photocatalytic wastewater fuel cell system was established.
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