Progress of photocatalytic degradation of bisphenol A by modified g-C3N4
Photocatalysis technology can continuously use clean solar energy to achieve effective degradation of the endocrine disruptor,bisphenol A(BPA),which stands out among many degradation methods.Graphite-like carbon nitride(g-C3N4),as a classic semiconductor material,has the advantages of simple synthesis,good thermal and chemical stability,economic and pollution-free,and is widely used in the field of photocatalytic degradation.However,due to the high recombination rate of photogenerated electron hole pairs,weak visible light absorption range and low oxidation potential of bulk g-C3N4,the performance of BPA degradation by bulk g-C3N4 is not high.In order to improve the degradation ability of g-C3N4 to BPA,a variety of modification methods are used to modify g-C3N4.This paper mainly reviewed the modification of g-C3N4 by means of element doping,morphology control,heterojunction construction and copolymerization.From the perspective of electronic structure,band structure and optical properties,the degradation performance and mechanism of modified g-C3N4 for BPA were summarized in detail.Secondly,the common degradation pathways and safety analysis of BPA were also summarized.Finally,effective selectivity for the degradation of BPA by modified g-C3N4 was prospected.
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