Photocatalytic Removal of the Greenhouse Gas Nitrous Oxide by Liposomal Microreactors
Photocatalytic Removal of the Greenhouse Gas Nitrous Oxide by Liposomal Microreactors
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脂质体微反应器光催化去除温室气体一氧化二氮
DOI：
10.1002/ange.202210572
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发表时间：
2022
影响因子：
--
通讯作者：
Piper S
中科院分区：
文献类型：
--
作者：
Piper S
一氧化二氮（N2 O）是一种强效温室气体和臭氧反应气体，由于农业日益集约化，其排放量正在迅速增长。用于N2 O分解的合成催化剂通常含有贵金属和/或在高温下操作，这推动了对更可持续的替代品的需求。在这里，我们展示了脂质体微反应器的自组装，能够将N2 O催化还原为气候中性产物N2。石墨N掺杂碳量子点的光激发通过MtrCAB蛋白复合物提供的脂溶性生物分子导线将电子传递到封装的N2 O还原酶。在微反应器内，电子从MtrCAB转移到N2 O还原酶是由一般的氧化还原介体甲基紫精促进的。脂质体微反应器仅使用地球丰富的元素来催化环境中的水性条件下的N2 O去除。
Nitrous oxide (N2O) is a potent greenhouse and ozone‐reactive gas for which emissions are growing rapidly due to increasingly intensive agriculture. Synthetic catalysts for N2O decomposition typically contain precious metals and/or operate at elevated temperatures driving a desire for more sustainable alternatives. Here we demonstrate self‐assembly of liposomal microreactors enabling catalytic reduction of N2O to the climate neutral product N2. Photoexcitation of graphitic N‐doped carbon dots delivers electrons to encapsulated N2O Reductase enzymes via a lipid‐soluble biomolecular wire provided by the MtrCAB protein complex. Within the microreactor, electron transfer from MtrCAB to N2O Reductase is facilitated by the general redox mediator methyl viologen. The liposomal microreactors use only earth‐abundant elements to catalyze N2O removal in ambient, aqueous conditions.