【摘要】 本文利用简单的沉淀反应将工业废水中含有的剧毒Pb（II）和Cr（VI）离子制备成纳米棒状的黄色颜料PbCrO₄.合成的PbCrO₄纳米棒是一种高效的可见光活性产氧和光降解催化剂.此纳米棒具有优异的光催化稳定性和催化活性,在可见光下分解水产氧速率高达314.0μmol h-1g-1,在420±10和600±10 nm处量子效率分别为2.16%和0.05%.此外,该催化剂还具有良好的可见光降解亚甲基蓝、甲基蓝、甲基橙和苯酚的性能.以上结果表明,将剧毒含重金属污染物Pb（II）和Cr（VI）的离子溶液转化为环境友好且高效的可见光光催化剂是可行的.该策略利用污染物产生清洁能源并降解污染物,是绿色、环境友好且非常有前景的废物利用途径.更多还原

【Abstract】 Here, PbCrO₄ nanorods, a commonly used and low-cost yellow pigment, was synthesized via a simple precipitation reaction and can serve as a highly efficient oxygen production and photodegradation photocatalyst. The obtained PbCrO₄ nanorods exhibit excellent stability and photocatalytic performance for O₂ evolution from water. The production rate is approximately 314.0 μmol h-1 g-1 under visible light, and the quantum efficiency is approximately 2.16% at 420±10 nm and 0.05% at 600±10 nm. In addition, the PbCrO₄ shows good degradation performance for methylene blue, methyl blue, methyl orange and phenol under visiblelight irradiation. These results indicate that it is potential to fabricate an effective, robust PbCrO₄ photocatalyst by transforming heavy-metal pollutants Pb（II） and Cr（VI） into a highly efficient O₂ evolution and photodegradation material.This strategy which uses pollutant to produce clean energy and degrade contaminants is completely green and environmentally benign, and thus could be a promising way for practical environmental applications.更多还原