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Grant support

Financial support from CONICET. UNMdP. ANPCyT (PICT 2322-2017) (Argentina). G. Zerjav and A. Pintar acknowledge the financial support from the Slovenian Research Agency (research core funding No. P2-0150).

Analysis of institutional authors

Di Luca, CAuthor

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December 20, 2022
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Proceedings Paper
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Catalytic ozonation of an azo-dye using a natural aluminosilicate

Publicated to:CATALYSIS TODAY. 361 24-29 - 2021-02-01 361(), DOI: 10.1016/j.cattod.2019.12.019

Authors: Inchaurrondo, N.; di Luca, C.; Zerjav, G.; Grau, J. M.; Pintar, A.; Haure, P.;

Affiliations

Natl Inst Chem, Dept Inorgan Chem & Technol, Lab Environm Sci & Engn, SI-1001 Ljubljana, Slovenia - Author
UNL CONICET, Inst Invest Catalisis & Petroquim Ing Jose Miguel, FIQ, Santa Fe, Argentina - Author
UNMdP, Div Catalizadores & Superficies INTEMA CONICET, Dept Ing Quim, Mar Del Plata, Argentina - Author

Abstract

Catalytic ozonation of Orange II (100 mg/L) was studied using aluminosilicate Montanit300 (R) (M) modified with H2SO4 (MS) and HCl (MH). Characterization of these samples was performed through several techniques: SEM/ EDX, FTIR, XRD, FRX, TPD pyridine, surface area, pHPZC. Acid treatment increased surface area, Si:Al ratio and quantity of acid sites, but reduced pHPZC and Fe and Mn content.Ozonation experiments achieved complete decoloration and remarkable TOC conversions of 66, 65, 88 and 91 % by single ozonation and catalytic ozonation with MH, MS and M, respectively. Higher M and MS activity under acidic pH was attributed to Mn leaching. Decreased mineralization efficiency in the presence of tertbutanol suggested a radical mechanism. At neutral pH, M showed no activity, while MS presented mild activity owing to its enlarged hydrophobicity.The M sample sustained mineralization levels over 20 h. Lower O-3 dose caused quick MS deactivation. However, it was reversed through calcination and prevented with a higher oxidant dose.Mn is naturally found in Montanit300 (R), thus making it an inexpensive catalyst. The development of a dynamic cycle combining reduced and oxidized forms of Mn was key to the outstanding activity observed.

Keywords

Acid activationCatalytic ozonationNatural aluminosilicatesNatural catalystOrange ii

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal CATALYSIS TODAY due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2021, it was in position 10/73, thus managing to position itself as a Q1 (Primer Cuartil), in the category Chemistry, Applied.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 2.58, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-18, the following number of citations:

  • WoS: 13
  • Scopus: 17

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-18:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 38.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 40 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 0.5.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Argentina; Slovenia.