【摘 要】
：
Transition-metal ions doped nanocrystals (NCs),specifically Mn-doped NCs,hold great potential in the field of photocatalysis,especially,to improve photocatalyti
【机 构】
：
Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA;Department of Chemistry, State
论文部分内容阅读
Transition-metal ions doped nanocrystals (NCs),specifically Mn-doped NCs,hold great potential in the field of photocatalysis,especially,to improve photocatalytic performance for singlet oxygen (1O2) generation.Here,we report the design of a novel Mn-doped NC-based nanocomposites,spedfically,silica-coated Mn-doped CdS/ZnS NCs decorated with Pt NCs (denoted as Mn-NCs@SiO2-Pt),which enhance photocatalytic 1O2 generation.Owing to the long-lived Mn excited state (on the order of ms),the energy-transfer between Mn-NCs and molecular oxygen is facilitated with the assistance of the Pt NCs adhered to the Mn-NC@SiO2 surface.Therefore,the Mn-NCs@SiO2-Pt composites,integrate the advantages of Mn-doped NCs,a protective silica layer,and Pt NCs to exhibit excellent catalytic activity and selectivity for the selective oxidation of primary benzylic alcohols to aldehydes through an 1O2 engaged oxidation process under visible-light irradiation.This work paves the way for enhancing catalytic performance via facilitated energy transfer relaxation by utilizing the long-lived excited-state of Mn2+ dopant ions in nanocomposites.
其他文献
地处中国东南隅的滨海城市泉州,以其千余年来对中外文化的广融博纳而闻名.在泉州地区传统居住社区中,有一种形态特殊的小型住居俗称"手巾寮".它一般以群体方式出现,沿街巷连
Infrared (IR) light photodetection based on two dimensional (2D) materials of proper bandgap has attracted increasing attention.However,the weak IR absorption i
Immediately after the demonstration of the high-quality electronic properties in various two dimensional (2D) van der Waals (vdW) crystals fabricated with mecha
随着Internet的快速发展,基于B/S模式的Web应用更受企业用户的青睐,同时,人们也对Web应用的客户端体验提出了更高的要求。传统的Web应用系统的客户端采用同步交互方式,简单的
Optical silicon (Si)-based materials are highly attractive due to their widespread applications ranging from electronics to biomedicine.It is worth noting that
故障诊断技术是降低事故风险、提高系统可靠性、保证系统正常运转的重要方法。然而,随着系统规模的日趋庞大,其结构的复杂性也越来越高,当系统出现故障时,伴随出现的征兆信息
“3+3+3”实训体系主要为提升汉语言文学专业学生的专业核心能力——语言文字表达能力而创建.实训体系包括构建“文学理论—文学史—其他专业课程”的阶梯式紧密联系的课程体
近年来随着IEC61131-3国际标准的正式公布与推广，基于此标准的工业自动化领域的组态软件，经过不断完善已日趋成熟并获得了广泛的应用组态软件作为DCS PLC SCADA等控制系统的上
一幅冲击力强的新闻图片对舆论引导的作用不可低估,而能产生视觉冲击力的途径很多,譬如新鲜的拍摄内容,或者恰当的形式运用。长焦和广角实现特殊视觉长焦和广角镜头,这两种
The dynamic redox process of surface oxide layers on metal surfaces is of great significance for understanding the active phase in catalytic reactions.We studie