Natural hematite ore composited with ZnO nanoneedles for energy applications
Natural hematite ore composited with ZnO nanoneedles for energy applications
复制标题
天然赤铁矿矿石与 ZnO 纳米针复合用于能源应用
DOI：
10.1016/j.compositesb.2017.11.020
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发表时间：
2018-03
期刊：
影响因子：
--
通讯作者：
Bin Zhu
中科院分区：
文献类型：
--
作者：
Yan Wu;Liang Liu;Xinxin Yu;Jing Zhang;Lingyao Li;Chunjie Yan;Bin Zhu
Natural hematite ore is used as a novel photocatalyst for visible photocatalyst and also for advanced fuel cell applications. The hematite was composited with needle-shaped ZnO via a hydrothermal approach. This hematite-based system exhibits excellent photodegradation for methelyene blue within 40 min when the hematite is hybridized with wurzite-structured ZnO under visible light irradiation. The hybrid heterojunction was characterized by the transmission electron microscopy, ultraviolet–visible diffuses reflectance spectra, cyclic voltammetry, and AC impedance spectroscopy. The photocatalytic activity of the heterojunction was evaluated by the photodegradation of MB dye. The high photocatalytic activity observed under visible light is discussed on basis of the coupling of the hybrid heterojunction band structure. On the other hand, hematite ore and its composites were also used for advanced fuel cells. At 550 °C, 182 mW cm−2and 580 mW cm−2were achieved for fuel cells using raw hematite and composite with ZnO as the electrolytes, respectively. The heterostructure energy band alignment is proposed. These results demonstrate that the natural composites for next-generation functional semiconductor-ionic materials can influence the multi-utilization of natural resources, thereby affecting the environment and energy sustainability.
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影响因子：
13.1
作者：
Yang Yang-Yang;Yuanqing Li;Han-Qiao Shi;Wan-Nan Li;H. Xiao;Luping Zhu;Yongsong Luo;S. Fu;Tianxi Liu
通讯作者：
Yang Yang-Yang;Yuanqing Li;Han-Qiao Shi;Wan-Nan Li;H. Xiao;Luping Zhu;Yongsong Luo;S. Fu;Tianxi Liu
影响因子：
3
作者：
Jun Zeng;Jianzhang Li;J. Zhong;Hao Yang;Yan Lu;Guangbin Wang
通讯作者：
Jun Zeng;Jianzhang Li;J. Zhong;Hao Yang;Yan Lu;Guangbin Wang
影响因子：
13.1
作者：
F. Yakuphanoglu
通讯作者：
F. Yakuphanoglu
影响因子：
13.1
作者：
Funda Aksoy Akgul
通讯作者：
Funda Aksoy Akgul
影响因子：
3.9
作者：
B. Zhu;L. Fan;Yufeng Zhao;W. Tan;D. Xiong;Hao Wang
通讯作者：
B. Zhu;L. Fan;Yufeng Zhao;W. Tan;D. Xiong;Hao Wang