PDF(Pubmed)
Abstract：
Urea used in fertilization and feed supplement, as well as a starting material for the manufacture of plastics and drugs. Urea is most commonly produced by reacting carbon dioxide with ammonia at high temperature. Photocatalysis has gained attention as a sustainable pathway for performing urea. This work focus on designing very active photocatalysts based on cerium organic framework (Ce-BTC) doped with metal oxide nanoparticles (molybdenum permanganate, Mo(MnO4)5) for production of urea from coupling of ammonia with carbon dioxide. The prepared materials were characterized using different spectral analysis and the morphology was analysed using microscopic data. The effect of catalyst loading on the production rate of urea was investigated and the obtained results showed speed rate of urea production with high production yield at low temperature. The recyclability tests confirmed the sustainability of the prepared photocatlysts (Mo(MnO4)5@Ce-BTC) which supported the beneficial of the photocatalysis process in urea production.
摘要：
用于施肥和饲料补充的尿素，以及制造塑料和药物的原材料。尿素最通常通过使二氧化碳与氨在高温下反应来生产。光催化作为进行尿素的可持续途径已经受到关注。这项工作的重点是设计基于铈有机骨架（Ce-BTC）掺杂有金属氧化物纳米颗粒（高锰酸钼，Mo（MnO4）5）用于通过氨与二氧化碳的偶联生产尿素。使用不同的光谱分析对制备的材料进行表征，并使用微观数据分析形态。研究了催化剂负载量对尿素生产率的影响，得到的结果表明，在低温下尿素生产速度快，产率高。可回收性测试证实了所制备的光固化剂（Mo（MnO4）5@Ce-BTC）的可持续性，这支持了尿素生产中光催化过程的益处。
