Pristine graphdiyne-hybridized photocatalysts using graphene oxide as a dual-functional coupling reagent.
Pristine graphdiyne-hybridized photocatalysts using graphene oxide as a dual-functional coupling reagent.
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DOI：
10.1039/c4cp04683h
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发表时间：
2015-01
期刊：
影响因子：
--
通讯作者：
Xiao Zhang;Mingshan Zhu;Penglei Chen;Yongjun Li;Huibiao Liu;Yuliang Li;Minghua Liu
中科院分区：
文献类型：
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作者：
Xiao Zhang;Mingshan Zhu;Penglei Chen;Yongjun Li;Huibiao Liu;Yuliang Li;Minghua Liu
基于碳材料的先进功能杂化材料(CMS)是科学界的主要成果之一。为了实现杂交，必须对原始的CMS进行化学修饰，或者使用对杂交物的性能没有作用的表面活性剂作为交联剂。使用双功能偶联剂构建原始的基于CM的杂交物是非常必要的，它不仅可以作为杂交的粘合剂，还可以作为增强性能的功能成分。本文报道了以氧化石墨烯(GO)为交联剂，将新近合成的一种新的碳同素异形体--原始石墨二炔(GD)与Ag/AgBr2杂化。与Ag/AgBr、Ag/AgBr/Go和Ag/AgBrGd相比，我们的Ag/AgBrGo/Gd在可见光照射下对甲基橙(MO)污染物的降解表现出更好的光催化性能。在我们的Ag/AgBr/Go/Gd中，GO不仅是成功杂交的粘合剂，而且还是增强催化性能的功能组分。除了GD，我们的工作可能为基于原始碳同素异形体的先进功能杂化材料的制备开辟了一条新的途径，其中所需的功能或性质可以通过选择所需的CMS和所需的杂化成分来实现。
Advanced functional hybrids based on carbon materials (CMs) represent one of the main achievements of scientific communities. To achieve the hybridization, pristine CMs have to be chemically modified, or surfactants, which are nonfunctional for the performances of the hybrids, have to be employed as a cross-linkage. The construction of pristine CM-based hybrids using dual-functional coupling reagents, which work not only as a glue for hybridization but also as a functional component for enhanced performance, is strongly desired. Here, we report that pristine graphdiyne (GD), a recently synthesized new carbon allotrope, can be facilely hybridized with Ag/AgBr using graphene oxide (GO) as a cross-linkage. We demonstrate that compared to Ag/AgBr, Ag/AgBr/GO, and Ag/AgBr/GD, our Ag/AgBr/GO/GD exhibits an enhanced photocatalytic performance toward the degradation of methyl orange (MO) pollutant under visible light irradiation. In our Ag/AgBr/GO/GD, GO serves not only as a glue for a successful hybridization, but also as a functional component for enhanced catalytic performance. Beyond GD, our work likely paves a new avenue for the fabrication of advanced functional hybrids based on pristine carbon allotropes, wherein desired functions or properties might be achieved by choosing desired CMs and desired hybridized components.