 The study investigated the effect of donor acceptor interactions on the photocatalytic properties of polymer semiconductor composites. It was found that the stronger the interactions between the donor and acceptor molecules, the lower the exit on binding energy, ebb. This allowed for more efficient charge transfer from the donor to the acceptor, leading to better photocatalytic performance. Furthermore, it was demonstrated that the presence of an alkanil group in the donor molecule could improve the stability of the composite and increase its photocatalytic efficiency. This article was authored by Yun Yangqian, Yulan Han, Shiyun Zhong, and others.