One-step synthesis of O, P co-doped g-C3N4 under air for photocatalytic reduction of uranium
文章亮点介绍：光催化还原核废水中的铀是一种有前景的铀提取和环境修复方法。 这种方法有利于核工业铀资源的回收，同时解决环境污染问题。 尽管研究取得了重大进展，但仍然需要具有成本效益且环境友好的催化材料。 在此背景下，我们提出了一种通过简单的一步热聚合在空气中合成的两种非金属O、P共掺杂g-C3N4（OPCN）。OPCN 在白光 LED 光照射下表现出高达 94.9% 的铀还原效率。 即使经过五个循环，OPCN仍保持81.7%的还原效率，凸显了其稳定性和可重复使用性。 此外，OPCN 在自然阳光下也能有效还原铀，并表现出令人印象深刻的抗菌性能。 这些特性使 OPCN 成为实际环境应用的有希望的候选者。
The photocatalytic reduction of uranium from nuclear wastewater represents a promising method for both uranium extraction and environmental remediation. This approach facilitates the recovery of uranium resources for the nuclear industry while addressing environmental pollution. Despite significant research advancements, there remains a need for cost-effective and environmentally friendly catalytic materials. In this context, we present a two non-metal O, P co-doped g-C3N4 (OPCN) synthesized via a simple one-step thermo-polymerization in air. OPCN demonstrates a high uranium reduction efficiency of 94.9 % under white LED light illumination. Even after five cycles, OPCN maintained a reduction efficiency of 81.7 %, highlighting its stability and reusability. Additionally, OPCN also performs effectively in uranium reduction under natural sunlight and exhibits impressive antimicrobial properties. These features position OPCN as a promising candidate for practical environmental applications.
O, P-doped g-C3N4 (OPCN) was synthesized by one-step thermal polymerization in the air. The hexavalent uranium was effectively reduced to tetravalent uranium under white LED irradiation. And it has good stability and reusability. Additionally, OPCN showed excellent catalytic performance for uranium reduction under natural sunlight and exhibited notable antimicrobial properties, making it a potential candidate for practical environmental applications.
期刊名称：Journal of Solid State Chemistry
中科院分区：中科院三区
发表日期：2024年8月5日
文章链接：https://doi.org/10.1016/j.jssc.2024.124941
作者列表：Guangzhi Zhang, Tao Lei, Dandan Wang, Xudong Tian, Yuan Wang, Weiting Yang*, Qiang Xu, Zhongmin Su.
期刊信息：J. Solid State Chem. 2024, 339, 124941.