An Iron-Containing Metal-Organic Framework as a Highly Efficient Catalyst for Ozone Decomposition
An Iron-Containing Metal-Organic Framework as a Highly Efficient Catalyst for Ozone Decomposition
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含铁金属有机框架作为高效臭氧分解催化剂
DOI：
10.1002/anie.201810268
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Wang Bo
中科院分区：
文献类型：
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作者：
Wang Hang;Rassu Pietro;Wang Xiao;Li Haiwei;Wang Xiaorui;Wang Xiaoqi;Feng Xiao;Yin Anxiang;Li Pengfei;Jin Xu;Chen Shi-Lu;Ma Xiaojie;Wang Bo
我们提出了一种含铁的金属-有机骨架，MIL-100(Fe)，用于臭氧去除。在室温下，MIL-100(Fe)在相对湿度为45 %、空速为1.9×10~5h· ~(-1)的条件下，臭氧转化率可达100 %以上，超过100−·h，远远超过大多数多孔或金属催化剂，如活性碳和α-MnO_2。我们还考察了湿度水平的影响，阐明了可能的反应机理，并通过密度泛函计算进一步证实了这一点。此外，MIL-100(Fe)还可以加工成薄膜，用作口罩的滤层，以保护人员免受臭氧污染。这项研究展示了MOF在臭氧污染控制方面的潜力，也为臭氧分解催化剂的设计提供了新的见解。
We present an iron‐containing metal–organic framework, MIL‐100(Fe), for ozone removal. MIL‐100(Fe) exhibits long‐lasting ozone conversion efficiency of 100 % for over 100 h under a relative humidity of 45 % and space velocity of 1.9×105h−1at room temperature, which is well beyond the performance of most porous or metal catalysts such as activated carbon and α‐MnO2. We also investigated the impact of humidity level and elucidated the plausible reaction mechanism, which is further confirmed by DFT calculations. Furthermore, MIL‐100(Fe) can be processed into films and used as filtration layer in a mask to protect personnel against ozone contamination. This study demonstrates the promising potential of MOFs in ozone pollution control, and also offers new insights for the design of ozone decomposition catalysts.