N-Benzyl HMTA induced self-assembly of organic-inorganic hybrid materials for efficient photocatalytic degradation of tetracycline.,Journal of Hazardous Materials

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N-Benzyl HMTA induced self-assembly of organic-inorganic hybrid materials for efficient photocatalytic degradation of tetracycline.
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-01-16 , DOI: 10.1016/j.jhazmat.2020.122121
Xiuying Qiao ₁ , Chaohai Wang ₂ , Yunyin Niu ₁

Affiliation

Photocatalytic degradation technology (PDT), as one of the most important advanced oxidation technologies (AOTs) for environment-purifying, have drawn great attentions in recent years. It is highly desirable but remains challenging to design and synthesize catalysts with enhanced performance of photocatalysis. Herein, we develop a cation induced self-assembly strategy for the synthesis of two new organic-inorganic hybrid materials ({[BHMTA][Cu2(SCN)3]}n (1), {[BHMTA][Cu2I3]}n (2) BHMTA = N-benzylhexamethylenetetramine bromide). Owing to their unique structural and the desirable composition, the as-prepared organic-inorganic hybrid materials exhibit high efficiency and excellent cycling stability for degradation of tetracycline (TC) under visible light irradiation. In addition, the effect factors for photocatalysis such as catalyst dosage, temperature, and pH were also investigated. The possible mechanism studied shows that superoxide radicals (O2-) and holes (h+) are the main active substances in the degradation process of TC. This work may shed light on preparing new organic-inorganic hybrid materials with promising photocatalysis performance for water purification.

中文翻译：

N-苄基HMTA诱导有机-无机杂化材料的自组装，以有效地光催化降解四环素。

作为用于净化环境的最重要的高级氧化技术（AOT）之一，光催化降解技术（PDT）近年来受到了广泛的关注。高度期望，但是设计和合成具有增强的光催化性能的催化剂仍然具有挑战性。在这里，我们开发了一种阳离子诱导的自组装策略，用于合成两种新型有机-无机杂化材料（{[BHMTA] [Cu2（SCN）3]} n（1），{[BHMTA] [Cu2I3]} n（ 2）BHMTA ＝ N-苄基六亚甲基四胺溴化物）。由于其独特的结构和所需的组成，所制备的有机-无机杂化材料在可见光照射下对四环素（TC）的降解显示出高效率和优异的循环稳定性。此外，光催化的影响因素，例如催化剂用量，还研究了温度和pH。研究的可能机理表明，超氧自由基（O2-）和空穴（h +）是TC降解过程中的主要活性物质。这项工作可能会为制备具有光催化性能的新型有机-无机杂化材料提供启示。

更新日期：2020-01-16

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