Efficient hydrogenation of cinnamaldehyde to 3-phenylpropanol on Ni/NiS-modified twin Zn0.5Cd0.5S under visible light irradiation,Catalysis Science & Technology

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Efficient hydrogenation of cinnamaldehyde to 3-phenylpropanol on Ni/NiS-modified twin Zn0.5Cd0.5S under visible light irradiation
Catalysis Science & Technology ( IF 4.4 ) Pub Date : 2022-04-26 , DOI: 10.1039/d2cy00290f
Yujia Hu ₁ , Guiyang Yu _{2,

3} , Shanshan Liu ₁ , Chenyang Zhao ₂ , Jianzhuang Jiang ₄ , Xiyou Li _{2,

5}

Affiliation

Solar-energy-driven organic synthesis over semiconductor materials is considered to be an environmentally friendly strategy, but it is still confronted with challenges of low reaction efficiency and high catalyst cost. In this paper, we report a non-precious metal-modified nano-twin crystal Zn_xCd_1−xS (ZCS) photocatalyst, a Ni/NiS–ZCS composite, which can almost completely convert cinnamaldehyde (CAL) into 3-phenylpropanol (HCOL), and achieves a yield of >80% for HCOL and an AQE 20.69% under 420 nm light irradiation in 80 min reaction time without any additional hydrogen source. As far as we know, this is a typical example for developing visible-light-driven photocatalysts for reducing cinnamaldehyde to 3-phenylpropanol. The high photoactivity and stability of Ni/NiS–ZCS make it an ideal candidate of photocatalysts for future practical applications. The high catalytic activity of Ni/NiS–ZCS could be ascribed to its unique heterojunction with appropriate band potentials and effective charge separation–transportation. In situ isotope labelling HPLC-MS analysis revealed the presence of intermediate COL, and the reduction mechanism of CAL follows a CAL → COL → HCOL route when using water and ethanol as hydrogen donors.

中文翻译：

可见光照射下Ni/NiS改性孪晶Zn0.5Cd0.5S上肉桂醛高效加氢制3-苯基丙醇

太阳能驱动的半导体材料有机合成被认为是一种环境友好的策略，但仍面临反应效率低和催化剂成本高的挑战。在本文中，我们报道了一种非贵金属改性的纳米孪晶 Zn _x Cd _{1− x}S (ZCS) 光催化剂，一种 Ni/NiS-ZCS 复合材料，几乎可以将肉桂醛 (CAL) 转化为 3-苯基丙醇 (HCOL)，在 420 nm 光下，HCOL 的产率 > 80%，AQE 为 20.69%在 80 分钟的反应时间内辐照，无需任何额外的氢源。据我们所知，这是开发可见光驱动光催化剂以将肉桂醛还原为 3-苯基丙醇的典型例子。Ni/NiS-ZCS的高光活性和稳定性使其成为未来实际应用的理想光催化剂候选者。Ni/NiS-ZCS 的高催化活性可归因于其独特的异质结，具有适当的带势和有效的电荷分离-传输。原位同位素标记HPLC-MS分析表明存在中间体COL，当使用水和乙醇作为氢供体时，CAL的还原机理遵循CAL→COL→HCOL路线。

更新日期：2022-04-26

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