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| 1 | Spontaneous polarization enhanced bismuth ferrate photoelectrode:fabrication and boosted photoelectrochemical water splitting property显示文摘In this paper,the fabrication of a highly orientated Bi_(2)Fe_(4)O_(9)(BFO)photoelectrode in the presence of two-dimensional(2D)graphene oxide(GO)was reported.It was found that the GO can be used as a template for controlling the growth of BFO,and the nanoplate composites of BFO/reduced graphene oxide(RGO)with a high orientation can be fabricated.The thickness of the nanoplates became thinner as the ratio of GO increased.As a result,the ferroelectric spontaneous polarization unit arranges itself in the space in a periodic manner,leading to the formation of a polarization field along a special direction.Therefore,the created built-in electric field of the nanoplate composites of BFO/RGO is improved upon the increase of the amount of RGO.As expected,carrier separation is enhanced by the built-in electric field,therefore substantially enhancing the photoelectrochemical(PEC)activity of water splitting compared to pure BFO under the irradiation of visible-light. | Yan ZHANG Yukun ZHU Yanhua PENG Xiaolong YANG Jian LIU Wei JIAO Jianqiang YU | 2021 | Frontiers in Energy2021，15，3： | 0 |
| 2 | 天然矿物光催化对环境的影响显示文摘半导体光催化是一种利用太阳能来驱动催化反应的技术,因其节能环保而广受关注.部分地表天然矿物具有合适的带隙结构和良好的光吸收能力,能够在环境中发生光催化反应,对环境造成影响.综述了天然矿物光催化反应对环境的影响,包括气相光催化(CO_(2)还原、固氮和硝酸盐转化)和液相光催化(有毒有机污染物降解和灭菌)中的研究进展,总结了天然矿物光催化材料的构建与改性(负载、表面改性和材料复合).探讨了天然矿物光催化材料目前的问题,并展望了其未来发展方向. | 虞梦雪 常世鑫 李覃 严翼 王之 吕康乐 | 2024 | 中南民族大学学报(自然科学版)2024，43，2： | 0 |
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