CAJ | 학술논문

针对油漆生产、加工行业产生的主要有机污染物二甲苯，采用低温等离子体催化技术进行降解实验。实验过程中,使用新型材料烧结金属纤维(sintered metal fiber, SMF)作为介质阻挡放电(dielectric barrier discharges, DBD)反应器的放电电极，并对烧结金属纤维电极进行负载纳米TiO 2处理，研究纳米TiO 2/SMF电极对二甲苯的降解效果。结果表明，纳米TiO 2/SMF电极比未处理的SMF取得了更高的降解效率，二甲苯降的解效率最高可达92.1%；并且载气中的氮气可以极大地提高纳米TiO 2/SMF催化电极的催化活性。实验也详细地考察了电压、负载量、载气和湿度对SMF及TiO 2/SMF电极辅助降解二甲苯的影响。
침대유칠생산、가공행업산생적주요유궤오염물이갑분，채용저온등리자체최화기술진행강해실험。실험과정중,사용신형재료소결금속섬유(sintered metal fiber, SMF)작위개질조당방전(dielectric barrier discharges, DBD)반응기적방전전겁，병대소결금속섬유전겁진행부재납미TiO 2처리，연구납미TiO 2/SMF전겁대이갑분적강해효과。결과표명，납미TiO 2/SMF전겁비미처리적SMF취득료경고적강해효솔，이갑분강적해효솔최고가체92.1%；병차재기중적담기가이겁대지제고납미TiO 2/SMF최화전겁적최화활성。실험야상세지고찰료전압、부재량、재기화습도대SMF급TiO 2/SMF전겁보조강해이갑분적영향。
Decomposition of xylene, the major constituent of paint exhaust, was conducted in the lab by NTP (non-thermal plasma). The novel SMF (sintered metal fiber) and its modified material nano-TiO2/SMF were adopted as the electrodes of the DBD (dielectric barrier discharges) reactor. Results showed that the maximum decomposition efficiency with nano-TiO2/SMF electrodes could reach 92.1%. It is significantly higher than the efficiency obtained with regular SMF electrodes. Moreover, it was observed that nitrogen in carrier gas considerably promoted the activity of the catalytic performance of nano-TiO2/SMF electrodes. The effects of TiO2 loading, the composition of carrier gas, the peak voltage of electrodes, and relative humidity on the decomposition efficiency of xylene were also investigated in detail.