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Carbon nanotubes (CNTs) were used as catalysts in the removal of 2-nitrophenol (2-NP)
by catalytic wet peroxide oxidation (CWPO). Different CNTs were synthesized by catalytic
chemical vapour deposition (CVD) using Fe/γ-Al2O3, as described elsewhere (Purceno et al.,
2015 and Martin-Martinez et al., 2016). A fluidized-bed reactor was employed by feeding a gas
mixture of hydrogen and: i) ethylene alone for 30 min (sample E30); ii) acetonitrile for 20 min,
followed by ethylene for 20 min (sample A20E20); iii) acetonitrile for 20 min, followed by
ethylene for 10 min (sample A20E10); iv) ethylene for 10 min, followed by acetonitrile for 20
min (sample E10A20); and v) acetonitrile alone for 30 min (sample A30). The CNTs were
tested for the oxidation of 2-nitrophenol (2-NP) in aqueous-phase (Martin-Martinez et al.,
2016) and in biphasic conditions (cyclohexane-water) simulating oily wastewater effluents as
described in previous works (Diaz de Tuesta et al., 2018). Both systems were modelled by using
kinetic power-law equations, following a methodology presented previously (Diaz de Tuesta et
al., 2017).
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Diaz de Tuesta, Jose Luis; Machado, Bruno; Serp, Philippe; Silva, Adrián; Faria, Joaquim; Gomes, Helder (2019). Carbon nanotube catalysts for the cwpo of 2-nitrophenol in biphasic systems: kinetic insights. In EAAOP-6 - 6th European Conference on Environmental Applications of Advanced Oxidation Processes. Portoroz-Portorose, Eslovénia. p. 142-143. ISBN 978-961-93849-5-4