Self‐templated Constructing of Heterophase Junction into Hierarchical Porous Structure of Semiconductors for Promoting Photogenerated Charge Separation
Self‐templated Constructing of Heterophase Junction into Hierarchical Porous Structure of Semiconductors for Promoting Photogenerated Charge Separation
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自模板异相结构建半导体多级多孔结构促进光生电荷分离
DOI：
10.1002/cctc.201901808
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发表时间：
2020-02
期刊：
影响因子：
4.5
通讯作者：
Rengui Li
中科院分区：
文献类型：
--
作者：
Xun Zhang;Chun Li;Junmei Liang;Jiangfei Wang;Jing Zhang;Xuebing Chen;Fangfang Wang;Rengui Li
众所周知，光生电荷分离是决定光催化太阳能效率的关键和瓶颈步骤。尽管促进异质结等半导体光催化剂空间电荷分离的策略，尤其是异相结，已被认为是有用且适当的方法，但在热诱导相变过程中，维持原始形态定制的结构始终具有挑战性。在此，利用简单的自模板方法，我们成功地将异相结制造成可见光响应半导体氧化铋（Bi2O3）的明确分级多孔结构，而不破坏其独特的分级多孔形态。异相结和分级多孔结构的这种有机结合被证明能够实现光生电子和空穴的高效分离，从而显着增强光催化活性。我们的工作展示了通过将有效的电荷分离路径集成到半导体的独特形态定制中以实现高效太阳能转换来开发人造光催化剂系统的一般概念。
It is well-known that photogenerated charge separation is the key and bottleneck step to determine the solar energy efficiency in photocatalysis. Although strategies for facilitating spatial charge separation of semiconductor-based photocatalysts like heterojunctions, especially for heterophase junctions have been recognized as useful and adequate approaches, the original morphology-tailored structures are always challenging to be maintained during the thermal-induced phase transformation process. Herein, using a facile self-templated method, we successfully fabricate heterophase junction into the welldefined.hierarchical porous structure of visible-light-responsive semiconductor, bismuth oxide (Bi2O3), without destroying the its unique hierarchical porous morphology. Such organic integration of heterophase junction and hierarchical porous structure are demonstrated to enable highly efficient separation.of photogenerated electrons and holes, resulting in a remarkable enhancement in photocatalytic activities. Our work showcases a general concept for developing artificial photocatalyst systems via integrating efficient charge separation path into the unique morphology-tailoring of semiconductors for highly.efficient solar energy conversion.
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添加表面活性剂制备、稳定γ-Bi2O3光催化剂及其光催化性能
影响因子：
2.3
作者：
Kuan Li;Jing Zhang;Zhaochi Feng;Can Li
通讯作者：
Can Li
影响因子：
1.3
作者：
Jinsong Xie;Liangsong Li;Changan Tian;Chengliang Han;Difang Zhao
通讯作者：
Jinsong Xie;Liangsong Li;Changan Tian;Chengliang Han;Difang Zhao
影响因子：
3.7
作者：
Ge, Ming;Li, Yafei;Chen, Wei
通讯作者：
Chen, Wei
DOI：
10.1016/j.compositesb.2019.05.097
发表时间：
2019-09
期刊：
Composites Part B: Engineering
影响因子：
--
作者：
Wenjun Wang;Ming Chen;Danlian Huang;G. Zeng;Chen Zhang;Cui Lai;Chengyun Zhou;Yang Yang-Yang;Min C
通讯作者：
Wenjun Wang;Ming Chen;Danlian Huang;G. Zeng;Chen Zhang;Cui Lai;Chengyun Zhou;Yang Yang-Yang;Min C
影响因子：
--
作者：
Jiaguo Yu;Huogen Yu;B. Cheng;C. Trapalis
通讯作者：
Jiaguo Yu;Huogen Yu;B. Cheng;C. Trapalis