An Iron Oxychloride/Reduced Graphene Oxide Heterojunction with Enhanced Catalytic Performance as a Photo‐Fenton Catalyst,European Journal of Inorganic Chemistry

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An Iron Oxychloride/Reduced Graphene Oxide Heterojunction with Enhanced Catalytic Performance as a Photo‐Fenton Catalyst
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2018-06-28 , DOI: 10.1002/ejic.201800180
Jian Zhang ₁ , Xinfu Zhao ₂ , Mingliang Zhong ₁ , Mengxue Yang ₁ , Ye Lian ₁ , Guodong Liu ₁ , Shaojie Liu ₃

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To aid with the environmental crisis, a new iron oxychloride/reduced graphene oxide (FeOCl/rGO) heterojunction has been successfully synthesized. The heterojunction shows enhanced photo‐Fenton catalytic activity and stability relative to those of FeOCl under mild conditions (neutral solution and natural light). The surface area, optical adsorption, and electronegativity of FeOCl/rGO are larger than those of FeOCl, and these properties contribute to the enhanced catalytic performance of FeOCl/rGO. Furthermore, the rapid transfer of photogenerated electrons from rGO to FeOCl promotes the reduction of Fe^III to Fe^II, which boosts the production of ^·OH radicals. On the basis of active‐species trapping experiments, the ^·OH radicals play a primary role, whereas ^·O₂^– radicals play a secondary role. This work demonstrates the first example of the facilitation of Fenton catalytic performance through the introduction of rGO to FeOCl for sunlight‐induced photodegradation.

中文翻译：

氧化铁/还原的氧化石墨烯异质结，具有增强的光芬顿催化剂催化性能

为了应对环境危机，已经成功合成了新的三氯氧化铁/还原氧化石墨烯（FeOCl / rGO）异质结。相对于FeOCl在温和条件（中性溶液和自然光）下，异质结显示出增强的光芬顿催化活性和稳定性。FeOCl / rGO的表面积，光学吸附和电负性比FeOCl大，这些特性有助于增强FeOCl / rGO的催化性能。此外，光生电子从RGO迅速转移到FeOCl促进Fe的还原^III至铁^II，其提升生产^·自由基OH。在活动物种诱捕实验的基础上，^·OH自由基发挥主要作用，而^· ö ₂^-基团起次要作用。这项工作展示了通过在FeOCl中引入rGO促进Fenton催化性能的第一个例子，以实现日光诱导的光降解作用。

更新日期：2018-06-28

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