Lu Suhong, Wang Xue, Zhu Qinyu, Chen Canchang, Zhou Xuefeng, Huang Fenglin, Li Kelun, He Lulu, Liu Yanxiong, Pang Fanjue
College of Chemistry and Chemical Engineering, Xi'an Shiyou University Xi'an 710065 China
Shaanxi Coal and Chemical Technology Institute Co., Ltd Xi'an 710070 China.
RSC Adv. 2018 Apr 17;8(26):14221-14228. doi: 10.1039/c8ra01611a.
A series of Ag-K/MnO nanorods with various molar ratios of K/Ag were synthesized by a conventional wetness incipient impregnation method. The as-prepared catalysts were used for the catalytic oxidation of HCHO. The Ag-K/MnO nanorods with an optimal K/Ag molar ratio of 0.9 demonstrated excellent HCHO conversion efficiency of 100% at a low temperature of 60 °C. The structures of the samples were investigated by BET, TEM, SEM, XRD, H-TPR, O-TPD and XPS. The results showed that Ag-0.9K/MnO-r exhibited more facile reducibility and greatly abundant surface active oxygen species, endowing it with the best catalytic activity of the studied catalysts. This work provides new insights into the development of low-cost and highly efficient catalysts for the removal of HCHO.
通过传统的湿浸渍法合成了一系列具有不同K/Ag摩尔比的Ag-K/MnO纳米棒。将所制备的催化剂用于催化氧化HCHO。K/Ag摩尔比为0.9的Ag-K/MnO纳米棒在60℃的低温下表现出100%的优异HCHO转化效率。通过BET、TEM、SEM、XRD、H-TPR、O-TPD和XPS对样品结构进行了研究。结果表明，Ag-0.9K/MnO-r表现出更易还原的特性和大量丰富的表面活性氧物种，使其具有所研究催化剂中最佳的催化活性。这项工作为开发用于去除HCHO的低成本高效催化剂提供了新的见解。
