Polyaniline/Carbon Nitride Nanosheets Composite Hydrogel: A Separation-Free and High-Efficient Photocatalyst with 3D Hierarchical Structure
Polyaniline/Carbon Nitride Nanosheets Composite Hydrogel: A Separation-Free and High-Efficient Photocatalyst with 3D Hierarchical Structure
复制标题
聚苯胺/氮化碳纳米片复合水凝胶：具有3D分级结构的免分离高效光催化剂
DOI：
10.1002/smll.201601546
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发表时间：
2016-08-24
期刊：
影响因子：
13.3
通讯作者：
Zhu, Yongfa
中科院分区：
文献类型：
--
作者：
Jiang, Wenjun;Luo, Wenjiao;Zhu, Yongfa
采用原位聚合法合成了具有三维分级纳米结构的聚苯胺（PANI）/氮化碳纳米片（CNNS）复合水凝胶。3D分级结构是坚固和稳定的，使得复合水凝胶无分离且易于回收。PANI/CNNS复合水凝胶在吸附预富集和后续光催化氧化的协同作用下，对有机污染物有很好的去除效果。污染物首先被吸附并浓缩到复合水凝胶的3D分层纳米结构中。然后，污染物在原位通过氧化。其光催化性能的提高主要归因于其优异的界面电荷分离和光电化学性能。提出了一种新的三维分级光催化剂的构建思路，可应用于可持续发展领域。
A polyaniline (PANI)/carbon nitride nanosheets (CNNS) composite hydrogel with 3D hierarchical nanostructure is synthesized via in situ polymerization. The 3D hierarchical structure is robust and stable, making the composite hydrogel separation-free and easy to recycling. It is highly excellent in removing organic pollutant for PANI/CNNS composite hydrogel on account of the cooperation of adsorptive preconcentration and the following photocatalytic oxidation. Pollutants are first adsorbed and concentrated into the 3D hierarchical nanostructure of the composite hydrogel. Then the pollutants are in situ oxidized via photocatalysis. The promoted photocatalytic performance can be mainly ascribed to the outstanding interfacial charge separation and photoelectrochemical performance. A new idea of the construction of 3D hierarchical photocatalysts is presented, which can be applied in the sustainability field.