Complete benzothiazole elimination by the solar photo-Fenton process in aqueous and β-cyclodextrin solutions

Reynoso, Agustina; Zizzias, Javier; Sacchetto, Julieta; Gambetta, Carolina; Natera, José; Massad, Walter A.

doi:10.1039/d1nj02483c

Cited by 3 publications

(2 citation statements)

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“…The extensive application of dyes, aromatic compounds (often derived from phenol), and BTHs in industrial and consumer products has led to widespread contamination of the environment. Different methods for these pollutants’ degradation have been reported [ 37 , 38 ], but, in most cases, oxidative processes based on H 2 O 2 and UV are used, which are not practicable at an industrial level [ 38 ]. To verify the potential of 3D-printed catalysts in Fenton processes, preliminarily methylene blue, which can be considered as a model compound for many degradation studies [ 35 , 38 ], was used.…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, when benzothiazole degradation (row# 4) is conducted in a homogeneous condition, only 20 percent is degraded in the first hour [ 37 ]. Our result is comparable with the photo-Fenton processes (row# 5) conducted in the presence of β-cyclodextrin, useful to improve the solubility, in which the reaction proceeds up to 80% in 60 min [ 37 ].…”

Section: Resultsmentioning

confidence: 99%

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The Role of 3D Printing in the Development of a Catalytic System for the Heterogeneous Fenton Process

et al. 2023

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Recycling of catalysts is often performed. Additive manufacturing (AM) received increasing attention in recent years in various fields such as engineering and medicine, among others. More recently, the fabrication of three-dimensional objects used as scaffolds in heterogeneous catalysis has shown innumerable advantages, such as easier handling and waste reduction, both leading to a reduction in times and costs. In this work, the fabrication and use of 3D-printed recyclable polylactic acid (PLA) scaffolds coated with an iron oxide active catalyst for Fenton reactions applied to aromatic model molecules, is presented. These molecules are representative of a wider class of intractable organic compounds, often present in industrial wastewater. The 3D-printed PLA-coated scaffolds were also tested using an industrial wastewater, determining the chemical oxygen demand (COD). The catalyst is characterized using electron microscopy coupled to elemental analysis (SEM/EDX) and thermogravimetry, demonstrating that coating leach is very limited, and it can be easily recovered and reused many times.

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