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首页> 外文期刊>Catalysis science & technology >Nickel doping as an effective strategy to promote separation of photogenerated charge carriers for efficient solar-fuel production
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Nickel doping as an effective strategy to promote separation of photogenerated charge carriers for efficient solar-fuel production

机译：镍掺杂是一种有效的策略来促进photogenerated载流子的分离高效太阳能燃料生产

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摘要

Enhancing the utilization of visible light and promoting the separation of photogenerated charge carriers are critical to improve the performance of semiconductor photocatalysts. Herein, nickel, a low cost transition metal element, was doped into the crystal lattices of ZnIn2S4 microspheres which were composed of ultra-thin nanosheets, via a simple one-pot hydrothermal approach. As evidenced by the UV-vis diffuse reflection spectra (DRS) and photoluminescence spectra (PL), Ni doping simultaneously increases the light absorption and charge transport efficiency of ZnIn2S4. The modified photocatalyst achieves an excellent performance in both photocatalytic H-2 evolution and CO2 reduction without any co-catalyst. And the doped Ni did not change the surface reaction kinetics of ZnIn2S4. This elemental doping strategy presents a facile pathway to enhance the photocatalytic activity of ZnIn2S4.
机译：提高可见光的利用率促进photogenerated电荷的分离航空公司是提高性能的关键的半导体催化剂。一个低成本的过渡金属元素掺杂的晶体晶格ZnIn2S4微球超薄nanosheets组成,通过吗一个简单的锅水热的方法。紫外可见漫反射的证明光谱(DRS)以及光致发光光谱(PL),镍掺杂同时增加了光吸收和电荷传输效率ZnIn2S4。在光催化氢性能优良没有任何进化和二氧化碳减少co-catalyst。ZnIn2S4表面反应动力学。提出了一个简单元素掺杂策略途径来提高光催化活性

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