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| Preparation and Photoelectrochemical Catalytic Properties of Porous Silicon/TiO2 Nanowires Photoanodes |
| Author Name | Affiliation | E-mail | | ZHAO Yi-Ming | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | YANG Ji-Kai | School of Science, Changchun University of Science and Technology, Changchun 130022, China | jikaiyang0625@163.com | | MA Fu-Zhe | Department of Nephrology, The First Hospital of Jilin University, Changchun 130021, China | mafuzhe2002@163.com | | CHEN Zhang-Xiao-Xiong | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | WEI Zi-Juan | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | ZHANG Yu-Fei | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | CHENG Ming | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | YANG Xue | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | XIAO Nan | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | WANG Guo-Zheng | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | WANG Xin | School of Science, Changchun University of Science and Technology, Changchun 130022, China | | | HUANG Ke-Ke | State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China | |
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| Abstract: n-Type porous silicon were prepared by metal-assisted chemical etching (MACE) and then the porous Si/TiO2 nanowires photoanodes were prepared by hydrothermal synthesis. Samples were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The results showed that the macrospore size of the porous Si increases from about 0.1 to 0.4 μm with the increasing of etching time. Porous Si/TiO2 nanowires corresponded primarily to rutile phase and slight traces of anatase. The results showed that porous Si/TiO2 nanowires sample with etching for 35 min had the highest anti-reflectivity the corresponding photoanode showed the best photocurrent (photocurrent density) under simulated solar light. In addition, the photoelectric catalysis results showed that porous Si/TiO2 nanowires with etching for 35 min at 1.5 V showed the best catalytic activities, which is attributed to the anti-reflection, heterogeneous effect and window effect. |
| Keywords: silicon hydrothermal synthesis water splitting photolysis |
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| ZHAO Yi-Ming,YANG Ji-Kai,MA Fu-Zhe,CHEN Zhang-Xiao-Xiong,WEI Zi-Juan,ZHANG Yu-Fei,CHENG Ming,YANG Xue,XIAO Nan,WANG Guo-Zheng,WANG Xin,HUANG Ke-Ke.Preparation and Photoelectrochemical Catalytic Properties of Porous Silicon/TiO2 Nanowires Photoanodes[J].Chinese Journal of Inorganic Chemistry,2019,35(4):613-620. |
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