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首页> 外文期刊>Journal of Hazardous Materials >Ag-doped ZnO nanorods coated metal wire meshes as hierarchical photocatalysts with high visible-light driven photoactivity and photostability
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Ag-doped ZnO nanorods coated metal wire meshes as hierarchical photocatalysts with high visible-light driven photoactivity and photostability

机译：Ag掺杂的ZnO纳米棒包覆的金属丝网作为具有高可见光驱动的光活性和光稳定性的分级光催化剂

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摘要

Ag-doped ZnO nanorods were grown on stainless-steel wire meshes to fabricate the hierarchical photo-catalysts with excellent visible light driven activity and anti-photocorrosion property. Effects of Ag doping and the surface structure on the surface chemistry, surface wetting properties, absorption band shift, photoelectrochemical response, and photocatalytic decolorization properties of the hierarchical photocatalysts, together with the stability of photocatalytic activity for recycled photocatalysts were investigated. Ag doping leads to red-shift in the absorption band and increased visible light absorption. Nanorods coated wire meshes hierarchical structure not only increases the surface area of photocatalysts but also makes the surface hydrophilic. The photocatalytic activity enhancement and reduced photocorrosion can be achieved because of increased surface area, enhanced hydrophilicity, and the interaction between the metal wire/ZnO and Ag/ZnO heterostructure interface which can improve the charge separation of photogenerated charge carriers.
机译：Ag掺杂的ZnO纳米棒生长在不锈钢丝网上，以制备具有优异的可见光驱动活性和抗光腐蚀性能的分层光催化剂。研究了Ag的掺杂和表面结构对分级光催化剂的表面化学，表面润湿性能，吸收带位移，光电化学响应和光催化脱色性能的影响，以及对再生光催化剂的光催化活性的稳定性。 Ag掺杂导致吸收带红移并增加可见光吸收。纳米棒包覆的金属丝网分层结构不仅增加了光催化剂的表面积，而且使表面亲水。由于增加的表面积，增强的亲水性以及金属线/ ZnO和Ag / ZnO异质结构界面之间的相互作用可以提高光生电荷载流子的电荷分离，因此可以实现光催化活性的增强和光腐蚀的减少。

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