Oxidation of hazardous compounds by heterogeneous catalysis based on Cu/Al2O3 system in Fenton-type reactions
Oxidation of hazardous compounds by heterogeneous catalysis based on Cu/Al2O3 system in Fenton-type reactions
复制标题
DOI：
10.1080/10643389.2016.1267449
复制
发表时间：
2016-12
影响因子：
12.6
通讯作者：
Laura G. Covinich;Paola Massa;R. Fenoglio;M. C. Area
中科院分区：
文献类型：
--
作者：
Laura G. Covinich;Paola Massa;R. Fenoglio;M. C. Area
摘要本文详细介绍了多相Fenton反应中的各个组成部分，重点介绍了氧化铝负载的用于H2 O2分解的铜物种，它们的氧化还原化学，以及它们在降解难降解有机化合物方面优于传统芬顿的实际优势。讨论了进一步理解γ-Al_2O_3载体催化性能的几个方面。针对铁系催化剂的不足，对无铁体系焙烧后的稳定性和催化剂在氧化反应中的性能进行了评价。研究了氧化铝负载的铜催化剂在类Fenton反应中的氧化还原性能，以及与传统的芬顿体系相比，铜催化剂在柠檬酸类化合物降解中的优势。用于阐明的结构，组合物和化学性质的两个固体中使用的多相催化，和吸附物和中间体存在于催化剂的表面上的反应过程中的表征技术进行了解释。介绍了废水化学特性和催化效率测量的全球指标。
ABSTRACT This review examines in detail all components involved in heterogeneous Fenton-type reactions, with special focus on copper species supported on alumina for H2O2 decomposition, their redox chemistry, and their practical advantages over traditional Fenton for the degradation of recalcitrant organic compounds. Several aspects for a deeper comprehension of the properties of γ-Al2O3 as support for catalytic applications are discussed. Iron-free systems stability after calcination and catalyst performance during the oxidation reaction are evaluated to solve the disadvantages of iron-based system. Copper species supported on alumina for H2O2 decomposition in Fenton-like reactions are examined, with special focus on their redox chemistry and practical advantages over traditional Fenton system for recalcitrant compounds degradation. Characterization techniques for the elucidation of the structures, compositions, and chemical properties of both the solids used in heterogeneous catalysis, and the adsorbates and intermediates present on the surfaces of the catalysts during reaction are explained. Global indicators for chemical characterization of wastewaters and measurement of catalytic efficiency are described.