文献类型：期刊文献

英文题名：Continuous Production of High-Concentration Nitrated Water with Catalytic Concentrated High-Intensity Electric Field Process at Ambient Conditions

作者：Lv, Yuancai[1,2,3];Chen, Ling[1];Zhou, Nan[2,3];Dai, Leilei[2,3];Cheng, Yanling[2,3,4];Ma, Yiwei[2,3];Liu, Juer[2,3];Cobb, Kirk[2,3];Chen, Paul[2,3];Ruan, Roger[2,3]

第一作者：Lv, Yuancai

通讯作者：Ruan, R[1];Ruan, R[2]

机构：[1]Fuzhou Univ, Coll Environm & Resources, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China;[2]Univ Minnesota Twin Cities, Ctr Biorefining, 206 BAE Bldg,1390 Eckles Ave, St Paul, MN 55108 USA;[3]Univ Minnesota Twin Cities, Dept Bioprod & Biosyst Engn, 206 BAE Bldg,1390 Eckles Ave, St Paul, MN 55108 USA;[4]Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China

第一机构：Fuzhou Univ, Coll Environm & Resources, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350116, Peoples R China

通讯机构：[1]corresponding author), Univ Minnesota Twin Cities, Ctr Biorefining, 206 BAE Bldg,1390 Eckles Ave, St Paul, MN 55108 USA;[2]corresponding author), Univ Minnesota Twin Cities, Dept Bioprod & Biosyst Engn, 206 BAE Bldg,1390 Eckles Ave, St Paul, MN 55108 USA.

年份：2023

外文期刊名：PLASMA CHEMISTRY AND PLASMA PROCESSING

收录：;EI(收录号：20234715076938);Scopus(收录号：2-s2.0-85176812041);WOS:【SCI-EXPANDED(收录号:WOS:001101117900001)】；

基金：This research was supported in part by the China Scholarship Council (CSC), University of Minnesota MnDrive Environment MNE12, and University of Minnesota Center for Biorefining.

语种：英文

外文关键词：Nitrogen fixation; Nitrate production; Plasma; Photocatalysis; Concentration

摘要：Considering the potential environmental issues caused by the Haber-Bosch nitrogen fixation process, developing green technology for nitrogen fixation has become a heated topic. In this work, a modified "concentrated high-intensity electric field" (CHIEF) non-thermal plasma system was developed, by combining photocatalysis and electrodialysis for the continuous production of high-concentration nitrated water using air and water. The main system design factors, including: voltage, duty cycle, gas flow rate, N2/O2 ratio, and reactor parameters, show significant impacts on the nitrogen fixation, and the composition in the resulting nitrated water. Under high voltage in the CHIEF system, N2 and O2 were excited, and generated various reactive nitrogen and oxygen species, resulting in the in-situ reaction with water. These reactions led to the formation of NH4+, NO2- and NO3- (ammonium, nitrite, and nitrate ions) in the solution via a series of reactions in the gas phase, gas-liquid interface, and liquid phase. Due to the rapid in situ reaction, the highest nitrogen species yield rate reached 48.28 mu mol/min, which was much higher than other reports. The best (least) energy consumption was 23.5 MJ/mol of Nitrogen. In addition, photocatalysis mediated by TiO2 under UV exposure, greatly promoted the conversion of nitrite to nitrate, because of the generation of center dot OH and center dot O2- species. Furthermore, the electrodialysis concentration was able to efficiently decrease the conductivity in the CHIEF system, and enriched the nitrate concentration over dozens of times. This enabled the CHIEF system to continuously achieve high-level nitrogen fixation in an efficient manner.