Constructing interfacial contact for enhanced photocatalytic activity through BiOIO3/g-C3N4 nanoflake heterostructure
Constructing interfacial contact for enhanced photocatalytic activity through BiOIO3/g-C3N4 nanoflake heterostructure
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DOI：
10.1016/j.catcom.2018.02.018
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发表时间：
2018-05
影响因子：
3.7
通讯作者：
Jiang Wu;P.‐F. Sheng;Wei-Xuan Xu;Xiao Zhou;Lu Cheng;Zheng Ji;Kai Xu;L. Zhu;Z. Xia;
中科院分区：
文献类型：
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作者：
Jiang Wu;P.‐F. Sheng;Wei-Xuan Xu;Xiao Zhou;Lu Cheng;Zheng Ji;Kai Xu;L. Zhu;Z. Xia;
通过水热法在g-C3 N4表面简单沉积BiOIO 3片层，制备了具有独特纳米片异质结构的高效BiOIO 3/g-C3 N4复合材料。在18 W和24 W的LED光照射下，通过氧化气态Hg 0测试了纳米片的光催化性能。当g-C3 N4/BiOIO 3摩尔比为10：1时，复合材料对Hg 0的去除率可达93.7%。结果表明，BiOIO 3和g-C3 N4之间形成了界面接触异质结构，在两组分之间形成了紧密的界面相互作用，从而使催化剂具有优异的光催化性能。此外，良好匹配的能带结构可以有效地导致光生电荷的分离。
The highly efficient BiOIO3/g-C3N4with unique nanoflake heterostructures were synthesized through hydrothermal method by simply depositing BiOIO3flake on the surface of g-C3N4. Photocatalytic ability of nanoflakes was tested by oxidation of gaseous Hg0under 18 W and 24 W LED light irradiation. The g-C3N4/BiOIO3composite with the molar ratio of 10:1 exhibited that the Hg0removal efficiency reached up to 93.7%. The remarkable photocatalytic performance of the as-prepared catalysts can be attributed to the interfacial contact heterostructure formed between BiOIO3and g-C3N4, which constructs an intimate interfacial interaction between the two components. Moreover, well-matched band structure can efficiently lead to the separation of photogenerated charges.