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·1490· 精细化工 FINE CHEMICALS 第 35 卷

应液由无色变为绿色，说明生成了 Cr(OH) 3，溶液中 65%，反应温度为 25 ℃，还原剂为甲酸时，9 min
存在 Cr(Ⅲ)。 可实现水体中 Cr(Ⅵ)的移除，高效地解决了重金属
[7]
同样以甲酸为还原剂，He 等则以 Cu-有机阳 污染问题，其展现出取代 Pb、Pt NPs 等贵金属催化
离子环作为催化剂，常温下获得了 75%的 Cr(Ⅵ)还 剂，用于催化还原处理含 Cr(Ⅵ)废水的潜力。
原率，魏应祥 [19] 等以膨胀石墨负载 Pd 纳米颗粒为
参考文献：
催化剂，在常温下，Cr(Ⅵ)的还原率不到 40%，催
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