Analysis and application of photocatalysis on marine heavy metal pollution
The pollutants discharged by human life and production into offshore waters threaten the ecological environment and human health. The control of heavy metal pollution is the key and difficult point of environmental problems. Traditional technology has limitations such as low efficiency, high cost and many by-products. Photocatalysis is a new catalytic oxidation and efficient clean technology and uses light as energy source, which is widely used in the treatment of various pollutants in water. Due to its excellent adaptability in environmental remediation,photocatalysis can be used in the treatment of heavy metals. The status of heavy metal pollution in marine or other water bodies and its effects on human health were systematically reviewed. Compared with other treatment technologies, the reaction principle and advantages of photocatalysis in the treatment of heavy metal pollutants in seawater were analyzed and explored. The latest progress and effect of different catalysts on the removal of heavy metals from water were summarized,and some suggestions on the existing problems of photocatalysis of heavy metals were put forward in order to provide scientific guidance and theoretical basis for the detection and risk control of marine heavy metal pollution by photocatalysis.
environmental protection engineeringphotocatalysismarine heavy metalspollution situationremoval effect