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Graphdiyne–ZnO Nanohybrids as an Advanced Photocatalytic Material
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2015-09-11 00:00:00 , DOI: 10.1021/acs.jpcc.5b06138 Sakthivel Thangavel 1 , Karthikeyan Krishnamoorthy 1 , Velmurugan Krishnaswamy , Nandhakumar Raju , Sang Jae Kim 1, 2 , Gunasekaran Venugopal 3
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2015-09-11 00:00:00 , DOI: 10.1021/acs.jpcc.5b06138 Sakthivel Thangavel 1 , Karthikeyan Krishnamoorthy 1 , Velmurugan Krishnaswamy , Nandhakumar Raju , Sang Jae Kim 1, 2 , Gunasekaran Venugopal 3
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The utility of carbonaceous materials for hybrid semiconductor photocatalysts has been rapidly increasing in recent years due to the synergetic effect via interfacial charge transfer reactions. In this study, we prepared a novel graphdiyne–ZnO nanohybrid by the hydrothermal method and examined its photocatalytic properties on the degradation of two azo dyes (methylene blue and rhodamine B). Interestingly, the graphdiyne–ZnO nanohybrids showed superior photocatalytic properties than that of the bare ZnO nanoparticles as evidenced by the absorption spectra and total organic carbon analyses. Moreover, the rate constant of graphdiyne–ZnO nanohybrids is nearly 2-fold higher compared to that of the bare ZnO nanoparticles on the photodegradation of both azo dyes. Further, a plausible mechanism for the enhanced photocatalytic properties of the graphdiyne–ZnO nanohybrids has been discussed. This work on the development of graphdiyne-based semiconductor photocatalysis can provide new insights into the design of novel hybrid photocatalysts for potential applications in the environmental remediation sectors.
中文翻译：
Graphdiyne–ZnO纳米杂化物作为一种先进的光催化材料
近年来，由于通过界面电荷转移反应的协同作用，含碳材料在混合半导体光催化剂中的用途已迅速增加。在这项研究中，我们通过水热法制备了一种新颖的石墨二炔-ZnO纳米杂化物，并研究了其对两种偶氮染料（亚甲基蓝和若丹明B）降解的光催化性能。有趣的是，通过吸收光谱和总有机碳分析可知，graphdiyne–ZnO纳米杂化物表现出比裸露的ZnO纳米粒子更好的光催化性能。此外，在两种偶氮染料的光降解作用下，石墨二炔-ZnO纳米杂化物的速率常数比裸露的ZnO纳米粒的速率常数高近2倍。进一步，讨论了增强石墨二炔-ZnO纳米杂化物光催化性能的合理机制。这项基于石墨二炔的半导体光催化技术的开发可以为新型复合光催化剂的设计提供新的见识，以用于环境修复领域的潜在应用。
更新日期：2015-09-11
中文翻译：
Graphdiyne–ZnO纳米杂化物作为一种先进的光催化材料
近年来，由于通过界面电荷转移反应的协同作用，含碳材料在混合半导体光催化剂中的用途已迅速增加。在这项研究中，我们通过水热法制备了一种新颖的石墨二炔-ZnO纳米杂化物，并研究了其对两种偶氮染料（亚甲基蓝和若丹明B）降解的光催化性能。有趣的是，通过吸收光谱和总有机碳分析可知，graphdiyne–ZnO纳米杂化物表现出比裸露的ZnO纳米粒子更好的光催化性能。此外，在两种偶氮染料的光降解作用下，石墨二炔-ZnO纳米杂化物的速率常数比裸露的ZnO纳米粒的速率常数高近2倍。进一步，讨论了增强石墨二炔-ZnO纳米杂化物光催化性能的合理机制。这项基于石墨二炔的半导体光催化技术的开发可以为新型复合光催化剂的设计提供新的见识，以用于环境修复领域的潜在应用。
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