摘要
      这里，等离子体Z方案Ag@AgCl/采用原位沉积光还原法成功合成了PDI光催化剂。的加载Ag@AgCl纳米粒子可以通过SPR效应提高自组装苝二亚胺（SA-PDI）的光吸收能力。Ag纳米粒子作为电子陷阱可以有效地捕获SA-PDI导带上的光生电子，而Ag0形成的肖特基势垒可以促进SPR激发的电子从Ag转移到AgCl，进一步加速电荷分离。此外，可以产生更多的活性物质（•O2-、1O2、h+和•OH）来提高复合材料的氧化能力。因此与SA-PDI相比，Ag@AgCl/PDI在去除有机污染物、抗生素抗性细菌（ARB）和抗生素抗性基因（ARGs）方面表现出更显著的可见光光催化性能。最佳降解率Ag@AgCl/对苯酚、双酚A、磺胺二甲氧嘧啶和氧氟沙星的PDI-3%分别是SA-PDI的5.7倍、4.0倍、3.2倍和10.0倍。同时Ag@AgCl/PDI-3%在2小时内杀死所有磺酰胺ARB，在8小时内灭活99.6%的磺酰胺ARGs（sul1），而SA-PDI仅去除49.4%的ARB和49.9%的sul1。这项研究可以为设计用于环境修复的高效PDI基光催化剂提供一种新的策略。
Abstract
Herein, a plasmonic Z-scheme Ag@AgCl/PDI photocatalyst was successfully synthesized by an in-situ deposition-photoreduction method. The loading of Ag@AgCl nanoparticles could improve the light absorption ability of self-assembled perylene diimide (SA-PDI) via the SPR effect. Ag nanoparticles as electron traps could effectively capture photogenerated electrons on the conduction band of SA-PDI, while the Schottky barrier formed by Ag0 could promote SPR-excited electrons to transfer from Ag to AgCl, further accelerating the charge separation. Besides, more reactive species (•O2-, 1O2, h+ and •OH) could be produced to enhance the oxidation capacity of composite. Therefore, compared with SA-PDI, Ag@AgCl/PDI exhibited more remarkable visible-light photocatalytic performance for the elimination of organic pollutants, antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs). The degradation rates of optimum Ag@AgCl/PDI-3% towards phenol, bisphenol A, sulfadimethoxine and ofloxacin were approximately 5.7, 4.0, 3.2 and 10.0 times higher than those of SA-PDI, respectively. Meanwhile, Ag@AgCl/PDI-3% killed all sulfonamide ARB within 2 h and inactived 99.6% of sulfonamide ARGs (sul1) within 8 h, while SA-PDI only removed 49.4% of ARB and 49.9% of sul1. This study could provide a new strategy to design high-efficiency PDI-based photocatalysts for environmental remediation.

https://www.sciencedirect.com/science/article/abs/pii/S0926337322011614