| 학회 | 한국화학공학회 |
| 학술대회 | 2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 | 25권 1호, p.1036 |
| 발표분야 | 촉매 및 반응공학(Catalysis and Reaction Engineering) |
| 제목 | Degradation of Refractory Pollutants Primarily Driven by Surface SO4- Immobilized on Metal Oxides |
| 초록 | •OH radical is deemed as one of powerful oxidants to decompose non-biodegradable pollutants present in water, yet, remains challenging as for its sustainable utilization as a recalcitrants’ consumer. This is ascribed to 1) the short lifetime of •OH particularly effective only within a narrow pH span, 2) a limited number of H2O2 activators to form •OH, 3) the oxidation of Mδ+ species to form M3+ analogues deterred to cleave H2O2 (Mδ+, M: metal; δ ≤ 2), and 4) the substantial leaching of Mδ+ species to activate H2O2 cleavage via heterogeneous catalysis. Nowadays, it is reported that SO4•- species are used to oxidize aqueous contaminants and offer several advantages such as 1) a longer lifetime and 2) a greater oxidation capability under a wider pH range in comparison with those of •OH radicals. The SO4•- species, however, are not be exempted from the serious leaching of S2O8- activators (Mδ+) to produce SO4•- species. Keyword: OH, SO42-, SO4•-, radical transfer, oxidative degradation, aqueous contaminants |
| 저자 | 김종식 |
| 소속 | 한국과학기술(연) |
| 키워드 | 촉매 |
| 원문파일 | 초록 보기 |
