化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (12) : 146-150.

科学研究

CdS/CeO₂/还原氧化石墨烯复合材料的制备及其光阴极保护材料性能

吴凤芹, 左士祥, 李霞章, 刘文杰, 姚超

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Preparation of CdS/CeO₂/RGO and its photocathodic protection for 304 SS

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Received
2018-09-11
Issue Date	Revised Date
2019-01-07	2018-09-11

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摘要

以水热法合成棒状CeO₂/石墨烯载体材料,成功在载体上负载CdS纳米粒子得到CdS/CeO₂/还原氧化石墨烯(CdS/CeO₂/RGO)多级结构复合材料。采用透射电镜、X射线衍射仪和拉曼光谱等手段表征材料的结构,探究了该复合材料对304SS的光致阴极保护性能。结果表明:在可见光照射下,与CdS和CdS/RGO相比,CdS/CeO₂/RGO复合材料的光生电子与空穴更易分离,有着更好的光致阴极保护效果,且CeO₂具备存储电子能力,可见光光源关闭后,CeO₂仍能向304SS注入电子,从而在黑暗中对304SS起到持续的阴极保护作用。

Abstract

CeO₂/RGO was firstly prepared by hydrothermal and then CdS/CeO₂/RGO composite with hierarchical structure was successfully prepared by loading cadmium sulfide nanoparticles.The material was characterized by TEM,XRD and raman.The photocathodic protection performance of CdS/CeO₂/RGO for 304SS under visible light was also investigated.The results showed that the photo generated electrons and holes of CdS/CeO₂/RGO which showed the best photocathodic protection performance was more easily separated than that of CdS and CdS/RGO materials under visible light.In addition,CeO₂ had the ability to store electrons.CeO₂ still could inject electrons into 304 stainless steel even without visible light.Thus,CdS/CeO₂/RGO could provide continuous cathodic protection to 304 stainless steel in the dark.

关键词

CeO₂ / CdS / 石墨烯 / 光致阴极保护

Key words

CeO₂ / CdS / graphene / photocathodic protection

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吴凤芹, 左士祥, 李霞章, 刘文杰, 姚超. CdS/CeO₂/还原氧化石墨烯复合材料的制备及其光阴极保护材料性能[J]. 化工新型材料, 2018, 46(12): 146-150 DOI:

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