Photoactive amphiphilic nanoreactor: A chloroplast-like catalyst for natural oxidation of alcohols
Photoactive amphiphilic nanoreactor: A chloroplast-like catalyst for natural oxidation of alcohols
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DOI：
10.1016/j.cej.2020.127243
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发表时间：
2020-10
影响因子：
15.1
通讯作者：
Zhiqiang Shi;Xuejian Qu;J. Dai;Houbing Zou;Zongtao Zhang;Runwei Wang;S. Qiu
中科院分区：
文献类型：
--
作者：
Zhiqiang Shi;Xuejian Qu;J. Dai;Houbing Zou;Zongtao Zhang;Runwei Wang;S. Qiu
探索在自然条件下进行的催化过程是有趣的，但在开发高效的醇自然氧化催化剂方面仍然存在很大的挑战。在此，我们报道了一种由光活性碳点（CDs）、催化活性铂纳米粒子和两亲性纳米管组成的叶绿体样催化剂。在模拟和真实的自然反应条件下，我们的催化剂对各种醇的氧化表现出显著的活性和长期的可重复使用性，显著优于其他对应的催化剂和已报道的热/光催化体系。结果表明，当碳点和两亲性纳米管分别参与光收集和衬底输运时，Pt/CDs异质界面作为物质转化的活性中心。这种精细的配合，是植物光合作用的高级过程，促成了优异的催化性能。这一贡献为人工光催化剂的设计提供了一种新的思路，为开发可持续的催化过程提供了广阔的前景。
Exploring catalytic processes performed under natural conditions is interesting, but there remains a great challenge in developing highly efficient catalysts for natural oxidation of alcohols. Herein, we report a chloroplast-like catalyst comprised of photoactive carbon dots (CDs), catalytically active Pt nanoparticles, and amphiphilic nanotubes. Under simulated and real natural reaction conditions, our catalysts exhibited remarkable activity and long-term reusability for the oxidation of various alcohols, significantly outperforming that of other counterpart catalysts and reported thermal/photocatalytic systems. It was demonstrated that when the carbon dots and the amphiphilic nanotubes respectively played a role in the light-harvesting and the substrate transport the Pt/CDs heterointerface acted as the active center for the matter conversion. Such an elaborate cooperation, an advanced process in the photosynthesis of plant, contributed to the excellent catalytic performance. This contribution provides a new design concept for artificial photocatalysts, which is very promising for developing sustainable catalytic processes.