Low-temperature Catalytic Oxidation of White Spirit Vapor in Air by Binary Oxides of FeO-MnOx Supported on OMS-2 Material

Authors

• Ngo Quoc Nguyen
• Pham Duy Quang
• Nguyen Ha Nhu
• Le Thi Van Anh
• Nguyen Thi Thuy
• Vo Thanh Hang
• Le Van Thang
• Nguyen Thi Le Lien
• Nguyen Trung Thanh
• Nguyen Nhat Huy

Publication Date

2025

Abstract

In this work, catalysts of iron and manganese oxides supported on OMS-2 were prepared and applied to remove white spirit (WS) in air. Among the fabricated catalysts, the FeO-MnOx/OMS-2 catalyst with a surface Fe+Mn loading of 15% (Fe:Mn = 6:4) exhibited the highest catalytic performance, achieving a high WS removal efficiency of 97.91% at 200 °C. The catalyst retained the cryptomelane-type tunnel structure of OMS-2 and possessed enhanced redox activity due to the synergistic interaction between surface Fe and Mn species. The physico-chemical properties were characterized via BET, EDS, FTIR, XRD, and SEM. The suitable conditions for WS oxidation were identified as 1 g of catalyst, a 1 L min-1 gas flow rate, and a maximum inlet concentration of 2000 ppm at a low operating temperature of 200 °C. While the catalyst proved highly effective in WS treatment, durability tests indicated performance degradation over prolonged use, highlighting a direction for future enhancement.

DOI

10.35762/AER.2025022

First Page

-

Last Page

-

Recommended Citation

Quoc Nguyen, Ngo; Duy Quang, Pham; Ha Nhu, Nguyen; Van Anh, Le Thi; Thi Thuy, Nguyen; Thanh Hang, Vo; Van Thang, Le; Thi Le Lien, Nguyen; Trung Thanh, Nguyen; and Nhat Huy, Nguyen (2025) "Low-temperature Catalytic Oxidation of White Spirit Vapor in Air by Binary Oxides of FeO-MnOx Supported on OMS-2 Material," Applied Environmental Research: Vol. 47: No. 3, Article 2.
DOI: 10.35762/AER.2025022
Available at: https://digital.car.chula.ac.th/aer/vol47/iss3/2