Insights into the mechanism of heterogeneous activation of persulfate with a clay/iron-based catalyst under visible LED light irradiation
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- 作者：Yaowen Gaoa ; b ; Zhuoyue Zhanga ; Simiao Lia ; Jin Liua ; Linyu Yaoa ; Yixi Lia ; Hui Zhanga ; b ; eeng@whu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Kaolinite ; Visible LED light ; Persulfate ; Photocatalytic degradation ; Near-neutral pH
- 刊名：Applied Catalysis B: Environmental
- 出版年：2016
- 出版时间：15 May 2016
- 年：2016
- 卷：185
- 期：Complete
- 页码：22-30
- 全文大小：1819 K
文摘
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The inexpensive kaolinite-supported iron oxide catalyst (K-Fe) was fabricated.
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Persulfate can degrade RhB via an electron transfer pathway.
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The excited RhB molecules can activate persulfate to generate free radicals.
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The free and surface-adsorbed radicals were responsible for the degradation of RhB.
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K-Fe showed good reusability and high stability over a broad operating pH range.