微波辐射Bi2O3/沸石-H2O2体系降解废水中的硝基苯

研究了微波辐射下，以负载于沸石上的三氧化二铋为催化剂，以双氧水为氧化剂的催化氧化体系处理硝基苯工艺。通过单因素实验法，从反应催化剂负载量、pH、双氧水用量、微波功率、反应时间、催化剂用量等方面初步考察了硝基苯在该体系中的催化氧化效果。在氧化铋负载量3%（质量比），pH=2，2 mL 30%双氧水，火力为中火，催化剂投加量为0.7 g，反应2 min，对降解过程所得的中间产物和终产物进行了分析。结果表明，该体系对硝基苯的去除率能够达到99.2%，COD去除率为73.91%。

Degradation of nitrobenzene in wastewater with microwave irradiated Bi2O3/zeolite-H2O2 system

Under microwave radiation, the Bi₂O₃ supported on activated carbon was used as catalyst and oxydol as oxidant to form a catalytic oxidative system for the treatment of nitrobenzene wastewater. By single factor experiments , the catalytic oxidation effect of nitrobenzene in the system was preliminarily investigated from the aspects of Bi₂O₃-loaded amount, initial pH, H₂O₂ concentration, microwave power, reactive time and amount of Bi₂O₃ /zeolite. Under the following conditions: Bi₂O₃ loaded amount 3%(mass ratio), initial pH 2, 30% H₂O₂ dosage 2 mL, middle power, catalysts dosage 0.7 g and 2 min response time, the intermediate products and final products in the degradation process were analyzed. The results showed that the removal rate of nitrobenzene was up to 99.2% and COD decreased by 73.91%.