本项目拟以表面活性剂调控的构筑技术为手段，以对离子为卤素离子、具有不同疏水尾链长度的单头双尾型、单头多尾型，或具有不同间隔基长度的Bola型表面活性剂等为调控剂和卤源，来实现银/卤化银 (Ag/AgX, X=Cl, Br, I) 纳米结构的可控构筑，研究其对有机污染物的选择性光催化降解性能。将重点关注Ag/AgX的可控构筑规律、其选择性光催化过程中电子/能量的转移/传输规律，其表面电子结构、晶格结构、能带结构与选择性光催化性能的科学关联，其选择性催化的本质及对底物分子的要求等科学问题。该研究将有助于揭示表面活性剂的结构——Ag/AgX的内在结构、表观形貌——选择性光催化性能等的内在关系，为理性设计与可控构筑具有优良靶向性光催化性能的高效表面等离子体光催化剂，提供科学依据与技术支持，具有重要的科学与实践意义，是一个具有很强原创性和颇具特色的构思。

Currently, environmental problems associated with organic pollutants have become one of the most overwhelming issues that limit the sustainable development of our society. Photocatalytic degradation of organic pollutants by visible-light-driven photocatalysts has been recognized as one of the most promising protocols to address these challenges, where plasmonic photocatalysts have been attracting increasing interest. Among these, Ag/AgX-based (X= Cl, Br, I) plasmonic photocatalysts have gained particular attention. Recently, we demonstrated that high-performance Ag/AgX photocatalysts could be facilely fabricated via surfactant-assisted fabrication, where traditional single-head single-chain surfactants were used as halide source and regulator for controllable fabrication. In these cases, the investigations focus on the enhancement of catalytic performances, while those focusing on the selective catalytic behaviors have only been met with limited success, although an exploration on this subject will provide new opportunities for a highly efficient photo-elimination of specific target substrates, which is strongly desired to match the requirements of future environmental issues. ..To meet this formidable challenge, we herein propose an original protocol for a controllable fabrication of Ag/AgX of tunable external morphology and internal structure, which might confer Ag/AgX with selective photocatalytic capability towards specific substrates. In our new protocol, instead of using conventional single-head single-chain surfactants, surfactants of distinct configurations, such as single-head double-chain surfactants, single-head multiple-chain surfactants of different hydrophobic tails, and bola-surfactants of different spacers, will be employed to realize a controllable fabrication of more flexibilities and diversities. The effects of surfactant structure, silver sources, and fabrication medium etc. on Ag/AgX morphology and structure will be disclosed. More significantly, we will pay our great attention on the fundamental scientific events of such new-type plasmonic photocatalytic systems, including the electron/energy transfer/transport principles during their selective photocatalytic performances, the correlation between the surface electronic structure, lattice structure, and bandgap structure of Ag/AgCl and their selective photocatalytic performances, the scientific nature of such selective photocatalytic performances and their requirements towards the substrate molecules, etc. This investigation will provide deep scientific insights into the underlying correlations between the fabrication protocol, the Ag/AgX morphology and structure, and their selective photocatalytic behaviors, which will endow us with new opportunities for the innovative development of Ag/AgX-based photocatalysts of strong selective catalytic capability. Our proposal is an important subject of sufficient originality, novelty and creativity worth of support.