Navarra Wanda, Sacco Olga, Venditto Vincenzo, Vaiano Vincenzo
Department of Chemistry and Biology "A. Zambelli", INSTM Research Unit, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy.
Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy.
Polymers (Basel). 2023 Jan 10;15(2):359. doi: 10.3390/polym15020359.
In recent years, aromatic substances have become the focus of environmental pollution-related concern due to their high stability and mutagenicity. In this regard, researchers have focused their attention on the development of photocatalytic processes to convert nitroaromatic compounds into aniline. In this work, the photocatalytic conversion of nitrobenzene (NB) to aniline (AN) was studied. The photocatalytic reaction was performed using commercial TiO (P25) and a photocatalytic aerogel, based on P25 embedded in syndiotactic polystyrene (sPS) aerogel (sPS/P25 aerogel) as photocatalysts. Different alcohols were used as hydrogen sources during the photocatalytic experiments. At the optimized operating conditions (photocatalysts dosage: 0.5 mg/L and 50% (/) EtOH%), an AN yield of over 99% was achieved. According to the results, this work could open avenues toward effective production of AN from NB using mild reaction conditions with sPS/P25 aerogel-in view of a possible scale-up of the photocatalytic process.
近年来，芳香族物质因其高稳定性和致突变性而成为环境污染相关关注的焦点。在这方面，研究人员将注意力集中在开发光催化工艺以将硝基芳香族化合物转化为苯胺上。在这项工作中，研究了硝基苯（NB）光催化转化为苯胺（AN）的过程。光催化反应使用商用TiO（P25）和一种光催化气凝胶进行，该光催化气凝胶基于嵌入间规聚苯乙烯（sPS）气凝胶（sPS/P25气凝胶）中的P25作为光催化剂。在光催化实验中使用不同的醇作为氢源。在优化的操作条件下（光催化剂用量：0.5 mg/L和50%（/）乙醇），AN产率达到了99%以上。根据结果，鉴于光催化过程可能的放大，这项工作可以为使用sPS/P25气凝胶在温和反应条件下从NB有效生产AN开辟道路。
