The author of 《Kinetic insights into removal of indole in aqueous solutions by ozonation: operating parameters, modeling and degradation pathways》 were Jiang, Longxin; Wang, Chunrong; Chen, Xiaoya; Liu, Dan; Zhang, Qi; Wang, Xingmin; Li, Haiyan; Sun, Moxin. And the article was published in Research on Chemical Intermediates in 2019. Reference of 1H-Indole The author mentioned the following in the article:
Nitrogenous heterocyclic compounds (NHCs) pose a serious threat to human health and ecosystems, and ozonation has been widely applied in the efficient removal of NHCs in water environments. In the present study, the degradation performance of indole in aqueous solutions was investigated. The second-order rate constants of indole reacting with mol. ozone at pH 2 and ·OH at pH 9 were determined to be 223.24 M-1 s-1 and 12.3 × 109 M-1 s-1, resp. The effect of different operating parameters both on the mass transfer and chem. kinetics was evaluated during the degradation of indole by ozonation. To attain a better removal performance, a pH value around 9 and a temperature of 35.6 °C were preferred. Addnl., the higher initial ozone concentrations were proved to be beneficial for the enhancement of the removal rate. Compared with synthetic solutions, the removal of indole appeared to be more efficient in real bio-treated coal gasification wastewater. A chem. kinetic model was built based on the rate constants and exposures of O3 and ·OH, and exptl. results demonstrated that the removal rates can be satisfactorily predicted. The relative contributions of O3 and ·OH measured by the modeling results indicated that the mol. ozone played a dominant role in the reaction system. By further anal. of intermediates with gas chromatog.-mass spectrometry (GC-MS), a number of products were detected, and three degradation pathways were tentatively proposed. This work provides a reference for kinetic studies on the treatment of other NHCs using ozone technologies. The experimental part of the paper was very detailed, including the reaction process of 1H-Indole(cas: 120-72-9Reference of 1H-Indole)
1H-Indole(cas: 120-72-9) belongs to indole. Indole, also called Benzopyrrole, a heterocyclic organic compound occurring in some flower oils, such as jasmine and orange blossom, in coal tar, and in fecal matter. It is used in perfumery and in making tryptophan, an essential amino acid, and indoleacetic acid (heteroauxin), a hormone that promotes the development of roots in plant cuttings.Reference of 1H-Indole
Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles