合成了Dawson型聚氧钨酸乳液催化剂Q18P2W18,Q18P2W17,和Q18P2W12.采用红外光谱和固体核磁技术对其进行了表征,并用于温和条件下H2O2氧化4,6-二甲基二苯并噻吩(4,6-DMDBT)、二苯并噻吩(DBT)、苯并噻吩(BT)和2,5-二甲基噻吩(2,5-DMT)等含硫化合物的反应中.结果表明,各催化剂的活性大小顺序为Q18P2W12Q18P2W17Q18P2W18-含硫化合物的氧化活性顺序为DBT>4,6-DMDBT>BT>2,5-DMT.在60°C反应30min内,Q18P2W12催化剂能够催化氧化BT完全转化成相应的砜.
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