期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 44, 期 12, 页码 4165-4170出版社
AMER CHEMICAL SOC
DOI: 10.1021/ie049155w
关键词
-
A novel photochemical approach for NADH regeneration, which employs visible light as a light source, carbon-containing TiO2, and [Cp*Rh(bpy)(H2O)](2+) as a catalyst, has been developed here. The carbon-containing TiO2 has a strong absorption toward visible light. [Cp*Rh(bpy)(H2O)](2+) shows high activity and selectivity toward 1,4-NADH. In the photoregeneration of NADH, the conversion is low and only achieves 25.83% at 31 degrees C and pH 6.5 when using H2O as an electron donor. While under the same conditions using mercaptoethanol, the conversion achieves 74.30% and even reaches 94.29% in the presence of H-2. Lower pH and higher temperature result in higher conversion and a higher reaction rate. The influence of the initial concentration of [Cp*Rh(bpy)(H2O)](2+) on NADH photoregeneration is much greater than that of the initial concentration of NAD(+). The optimum conditions for NADH photoregeneration are determined to be a pH of 6.0, 37 degrees C, a NAD(+) initial concentration of 0.2 mM, and a [Cp*Rh(bpy)(H2O)](2+) initial concentration of 0.3 similar to 0.5 mM. The conversion achieves 63.98% under optimum conditions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据