%0 Journal Article %T Enhanced water decontamination via photogenerated electron delocalization of π → π* and D-π-A synergistically. %A Wang Y %A Lin Z %A Zhang X %A Chen P %A Zhang Q %A Lv W %A Liu G %A Zhu Y %J J Colloid Interface Sci %V 675 %N 0 %D 2024 Jul 10 %M 39002242 %F 9.965 %R 10.1016/j.jcis.2024.07.050 %X Mixed-dimensional van der Waals heterojunctions (MD-vdWhs), known for exceptional electron transfer and charge separation capabilities, remain underexplored in photocatalysis. In this study, we leveraged the synergistic effect of intermolecular π → π* and D-π-A dual channels to fabricate novel MD-vdWhs. Owing to the synergistic effect, it exhibits superior electron transfer and delocalization ability, thereby enhancing its photocatalytic performance. The Optimal photocatalyst can degrade 98.78 % of 20 mg/L tetracycline (TC) within 15 min. Additionally, we introduced a novel proof strategy for investigating the photoelectron transfer path, creatively demonstrating the synergistic dual channels effect, which can be attributed to the carbonyl density and light-excitation degree. Notably, even under low-power light sources, it achieved complete inactivation of Escherichia coli within just 7 mins, far surpassing current cutting-edge research. This theoretical framework holds promise for broader applications within related studies.