Abstract
In recent years, the discovery of efficient catalyst with low price to sulfur dioxide (SO2) oxidation in normal temperature is a major concern in the industry. In present study, in first step the boron nitride nanotube (BNNT) with Ge were adopted and the surface of Ge-adopted BNNT via O2 molecule were activated. In second step the SO2 oxidation on activated Ge-BNNT surface via Langmuir Hinshelwood (LH) and Eley Rideal (ER) mechanisms was investigated. Results show that O2 activated Ge-BNNT surface can oxide the SO2 molecule via Ge-BNNT-O-O* + SO2 → Ge-BNNT-O-O*-SO2 → Ge-BNNT-O* + SO3 and Ge-BNNT-O* + SO2 → Ge-BNNT + SO3 reactions. Results show that SO2 oxidation on activated Ge-BNNT surface via the LH mechanism has lower energy barrier than ER mechanism. Finally, calculated parameters reveal that activated Ge-BNNT is acceptable catalyst with low price and high performance for SO2 oxidation in normal temperature.
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