期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 191, 期 -, 页码 537-544出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.10.068
关键词
NiO/ZnO; Heterojunciton; Gas-sensor; Photocatalysis
资金
- Fundamental Research Funds for the Central Universities [531107040415]
- National Science Foundation of China [51372078]
- Science and Technology Planning Project of Hunan Province, China [2012WK3023]
This paper reported a p-NiO/n-ZnO heterostructures synthesized by a low-cost and environment-friendly strategy. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectroscopy were used to characterize the as-synthesized powders. The results indicated that the p-n heterostructures formed between the cubic structure NiO and hexangular structure ZnO in the NiO/ZnO composites. Furthermore, the gas sensing performance for detection of acetone and photocatalytic activity for the degradation of methyl orange (MO) of the NiO/ZnO composites was investigated. The composites showed much higher performance than that of pure NiO and ZnO, which could be ascribed to the formation of p-n heterojunctions in the NiO/ZnO composites. (C) 2013 Elsevier B.V. All rights reserved.
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