Preparation method and application of benzenesulfonic acid group modified carbon nitride photocatalytic material

The invention discloses a preparation method of a benzenesulfonic acid group modified graphite phase carbon nitride photocatalytic material, the preparation method is simple and easy to implement, the effect is obvious, and the preparation method specifically comprises the following steps: mechanically grinding urea and sulfanilic acid, and fully mixing; and after uniform mixing, putting the obtained mixture into an alumina crucible with a cover, and putting the alumina crucible into a muffle furnace for programmed heating, thereby obtaining the product. According to the invention, the problem of low photocatalytic efficiency caused by high photon-generated carrier recombination rate and poor sunlight absorption and utilization rate of traditional graphite-phase carbon nitride is solved. 本发明公开了一种苯磺酸基团改性石墨相氮化碳光催化材料的制备方法，简单易行且效果明显，具体包括如下过程：将尿素与对氨基苯磺酸机械研磨并充分混合。待混合均匀后，将所得混合物放入带盖的氧化铝坩埚中，并置于马弗炉中程序加热，即得。本发明解决了传统石墨相氮化碳由于光生载流子复合率高、太阳光吸收利用率差而导致光催化效率低的问题。