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ZrO2纳米管光催化还原处理含铬废水中Cr(Ⅵ)

Ke-quan MU,Ying-ming ZHU,Wei JIANG,Bin LIANG

Applied Chemical Industry（2017）

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Abstract
以具宽禁带的阳极氧化ZrO2纳米管为光催化剂,甲醇为空穴捕获剂,紫外光照下利用ZrO2纳米管光生电子强还原性将含铬废水中的Cr(Ⅵ)还原并固载于其表面实现铬一步完全移除,废水中Cr(Ⅵ)在80 min内去除率可达99.4％,反应为一级反应;相关表征证实,Cr(Ⅵ)被还原为Cr(0)和Cr(Ⅲ)沉积于ZrO2表面,所得产品便于后续处理.
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