NH₂-Fe-MILs for effective adsorption and Fenton-like degradation of imidacloprid: Removal performance and mechanism investigation

Mao-Long Chen; Tian-Hui Lu; Ling-Li Long; Zhou Xu; Li Ding; Yun-Hui Cheng

추천

검색

질문

자료유형: 학술저널

저자정보: Mao-Long Chen (Changsha University of Science & Technology) Tian-Hui Lu (Changsha University of Science & Technology) Ling-Li Long (Changsha University of Science & Technology) Zhou Xu (Changsha University of Science & Technology) Li Ding (Changsha University of Science & Technology) Yun-Hui Cheng (Changsha University of Science & Technology)

저널정보: 대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제27권 제2호

발행연도: 2022.4

수록면: 211 - 220 (10page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

This investigation enables amino-functionalized metal–organic frameworks (MOFs) materials for the removal of imidacloprid (IMC). Two Fe-based MOF materials of NH₂-MIL-88B(Fe) and NH₂-MIL-101(Fe) both exhibited high adsorption capacity and Fenton-like degradation ability for IMC which were utilized to remove IMC from aqueous solution. Although the adsorption capacity of NH₂-MIL-101(Fe) was higher than that of NH₂-MIL-88(Fe), the degradation abilities of both MOF materials were similar. The removal efficiencies were evaluated through several basic studies, including concentrations of catalyst (0.12-0.3 g/L) and IMC (20-100 mg/L), pH of solution (3-11), and amounts of 30% H₂O₂ (0-2.0 μL/mL). By optimizing the above factors, the total removal ratio of IMC by NH₂-MIL-88B(Fe) was as high as 93%, whereas the removal ratio of NH₂-MIL-101(Fe) was 97%. Moreover, these MOF materials were proven to be stable and recyclable. The free radical quenching experiment and density functional theory calculation were applied to research the removal mechanism, and the hydroxyl radicals (·OH) was found to be the key active intermediate. The high catalytic efficiency can be attributed to the synergy of the Fe<SUP>3+</SUP>/Fe<SUP>2+</SUP> redox cycle.

#Adsorption #Fenton-like degradation #Heterogeneous catalysts #Imidacloprid #Metal-organic frameworks

참고문헌 (0)

참고문헌 신청

참고문헌이 DBpia에서 서비스 중이라면, [참고문헌 신청]을 통해 등록해보세요

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!