石墨炔及石墨炔基复合光催化材料的设计合成并原位光催化分解水制氢耦合集成新策略

聚焦碳材料和光催化分解水制氢的前沿热点和难点，通过独辟蹊径新策略，采用可溶铜盐催化液相悬浮体系合成石墨炔并集成构建无需剥离纯化分离出石墨炔而是直接将其原位应用于光催化分解水制氢耦合体系，石墨炔合成时的残留反应底物用作光催化反应时的电子给体。由此设计并改性合成石墨炔基复合光催化剂，是非常适合于光催化的石墨炔制备及应用新策略新理念。基于强化光生电荷分离以及电子定向迁移的思想，以期充分发挥石墨炔所禀赋的极高的载流子迁移率、良好的电子传递特性等天然性能，深入研究石墨炔基复合光催化剂在提高电子/空穴对分离、电子定向传递进而增强光催化剂稳定性和产氢活性的内在机制。另外通过本研究预期解决石墨炔基复合光催化剂的稳定性问题并拓展开发科学、合理、廉价的适合光催化应用的石墨炔基催化剂批量制备技术。在此基础上，为石墨炔基复合光催化剂分子结构设计、构筑以及高效稳定新型可见光诱导还原水制氢反应新体系的构建提供理论参考

Focusing on the hot spots and difficulties of carbon materials and photocatalysis，through new strategies of coupling system for the preparation of grapheme with a new approach of using soluble copper salt as a catalytic material in liquid suspension system and the in-situ photocatalytic water splitting for hydrogen evolution is constructed. The main aim is development of several new methods for liquid phase synthesis of graphyne and extending its application to the photocatalytic water-splitting to produce hydrogen in situ without separation. The residual reaction substrate in the synthesis of graphyne used as a photocatalyst electron donors and the synthesis of graphyne based complex photocatalyst is designed. Based on the idea of enhanced photo-induced charge separation and photoelectron directed migration, applied it to the extremely high carrier mobility and excellent electronic transmission characteristics of graphyne. We will systematically research the effect of graphyne based complex photocatalyst its the intrinsic mechanism of the enhancement of the electron-hole separation, electron transfer, and the enhancement of the stability and hydrogen production activity. It is expected to realize the effective separation and directional migration of photo-generated charge, so as to build a high efficient catalyst and hydrogen production reaction system. In addition, we expect to enhance the stability of the graphyne based complex photocatalyst and develop a scientific, reasonable and cheap preparation technology. Under the theoretical guidance of the above studies, we will effectively molecularly design and construct the graphyne catalyst, and the novel high efficiency stable visible light induced hydrogen reduction reaction system.