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One-step synthesis of ZnS-N/C nanocomposites derived from Zn-based chiral metal–organic frameworks with highly efficient photocatalytic activity for the selective oxidation of cis-cyclooctene†
Inorganic Chemistry Frontiers ( IF 7 ) Pub Date : 2018-01-22 00:00:00 , DOI: 10.1039/c7qi00693d
Xiaoling Lin 1, 2, 3, 4, 5 , Beibei Liu 1, 2, 3, 4, 5 , Hui Huang 1, 2, 3, 4, 5 , Chunfeng Shi 5, 6, 7, 8, 9 , Yang Liu 1, 2, 3, 4, 5 , Zhenhui Kang 1, 2, 3, 4, 5
Affiliation  

The highly efficient and highly selective photocatalytic oxidation of alkenes under mild conditions is an important objective in chemical production and catalysis chemistry in the 21st century. Although there has been extensive investigation into new photocatalysts for cis-cyclooctene oxidation, the problems of low conversion and poor selectivity still exist in current production processes. Herein, we demonstrate that ZnS-N/C nanocomposites synthesized by a facile one-step conversion from Zn-based chiral metal–organic frameworks as a photocatalyst exhibit excellent photocatalytic activity for the selective oxidation of cis-cyclooctene under visible light with air as an oxidant at 80 °C (conversion based on cis-cyclooctene is about 66.32% and the selectivity for epoxycyclooctane is about 93.42%). The excellent photocatalytic activity of the ZnS-N/C nanocomposites should be attributed to the synergistic effect between the ZnS and N-doping carbon.

中文翻译:

一步合成ZnS-N / C纳米复合材料,该复合材料源自具有高效光催化活性的基于锌的手性金属-有机骨架,可选择性氧化顺式-环辛烯

在温和条件下进行烯烃的高效,高选择性光催化氧化是21世纪化学生产和催化化学的重要目标。尽管已经对用于顺式-环辛烯氧化的新光催化剂进行了广泛的研究,但是在当前的生产工艺中仍然存在转化率低和选择性差的问题。本文中,我们证明了通过以锌为基的手性金属-有机骨架作为光催化剂,通过一步一步转化而合成的ZnS-N / C纳米复合材料,在可见光下,以空气为载体,对顺式-环辛烯的选择性氧化具有优异的光催化活性。80°C时的氧化剂(基于顺式的转化)-环辛烯为约66.32%,对环氧环辛烷的选择性为约93.42%。ZnS-N / C纳米复合材料优异的光催化活性应归因于ZnS和N掺杂碳之间的协同作用。
更新日期:2018-01-22
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