Porous Co3O4 Nanorods鈥揜educed Graphene Oxide with Intrinsic Peroxidase-Like Activity and Catalysis in the Degradation of Methylene Blue

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• 作者：Zhe Zhang ; Jinhui Hao ; Wenshu Yang ; Baoping Lu ; Xi Ke ; Bailin Zhang ; Jilin Tang
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2013
• 出版时间：May 8, 2013
• 年：2013
• 卷：5
• 期：9
• 页码：3809-3815
• 全文大小：503K
• 年卷期：v.5,no.9(May 8, 2013)
• ISSN：1944-8252

文摘

A facile two step process was developed for the synthesis of porous Co₃O₄ nanorods鈥搑educed graphene oxide (PCNG) hybrid materials based on the hydrothermal treatment cobalt acetate tetrahydrate and graphene oxide in a glycerol鈥搘ater mixed solvent, followed by annealing the intermediate of reduced graphene oxide-supported Co(CO₃)_0.5(OH)路0.11H₂O nanorods in a N₂ atmosphere. The morphology and microstructure of the composites were examined by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and Raman spectroscopy. It is shown that the obtained PCNG have intrinsic peroxidase-like activity. The PCNG are utilized for the catalytic degradation of methylene blue. The good catalytic performance of the composites could be attributed to the synergy between the functions of porous Co₃O₄ nanorods and reduced graphene oxide.

Keywords:

graphene; nanorods; peroxidase-like activity; methylene blue