Photocatalytic nitrogen fixation is an environmentally friendly process for turning atmospheric nitrogen into ammonia under mild conditions. In this study, MOF photocatalysts Zn-bpydc and Al-bpydc with good nitrogen fixation effect were prepared by a simple one-pot method. The rates of ammonia generation for Zn-bpydc and Al-bpydc at normal temperature and pressure were 796.1 µg g-1 h−1 and 684.0 µg g-1 h−1, respectively. The ESR test demonstrated that Zn-bpydc exhibits a higher concentration of oxygen vacancies than Al-bpydc, allowing it to chemically adsorb N2 and construct an effective electron transport pathway, hence enhancing the catalyst’s photocatalytic activity. This study provides a simple, efficient and economical MOF photocatalysts that can contribute to sustainable development.

中文翻译：

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Zn 基和 Al 基 MOF 光催化剂具有丰富的氧空位，可在温和条件下有效固氮


光催化固氮是一种在温和条件下将大气中的氮转化为氨的环保工艺。本研究采用简单的一锅法制备了具有良好固氮效果的 MOF 光催化剂 Zn-bpydc 和 Al-bpydc。在常温常压下，Zn-bpydc 和 Al-bpydc 的氨生成速率分别为 796.1 μg g-1 h-1 和 684.0 μg g-1 h-1。ESR 测试表明，Zn-bpydc 表现出比 Al-bpydc 更高的氧空位浓度，使其能够化学吸附 N2 并构建有效的电子传递途径，从而增强催化剂的光催化活性。本研究提供了一种简单、高效、经济的 MOF 光催化剂，有助于可持续发展。