콘텐츠 본문
논문 해외 국제전문학술지(SCI급) One-pot synthesis of layered double hydroxide hollow nanospheres with ultrafast removal efficiency for heavy metal ions and organic contaminants
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2018-03
- 저자명 Mahfuza Mubarak, Hyokyung Jeon, Md. Shahinul Islam, Cheolho Yoon, Jong-Seong Bae, Seong-Ju Hwang, Won San Choi, Ha-Jin Lee
- 학술지명 Chemosphere
- 발행처명 ELSEVIER
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 8
- 논문 다운로드 링크(외부) https://doi.org/10.1016/j.chemosphere.2018.03.046
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
Herein, Mg/Fe layered double hydroxide (MF-LDH) hollow nanospheres were successfully prepared by a one-step thermal method. After the thermal treatment of MF-LDH nanospheres at 400 °C, the MF-LDH was converted into the corresponding oxide, Mg/Fe layered double oxide (MF-LDO), which maintained the hollow nanosphere structure. The MF-LDO hollow nanospheres exhibited excellent adsorption efficiency for both As(V) and Cr(VI), showing 99% removal within 5 min and providing maximum removal capacities of 178.6 mg g−1 [As(VI)] and 148.7 mg g−1 [Cr(VI)]. Moreover, it met the maximum contaminant level requirements recommended by World Health Organization (WHO); 10 ppm for As(V) and 50 ppm for Cr(VI) in 10 and 20 min, respectively. Furthermore, Au nanoparticles were successfully introduced in the MF-LDO hollow nanospheres, and the products showed a conversion rate of 100% for the reduction of 4-nitrophenol into 4-aminophenol within 5 min. It is believed that these excellent and versatile abilities integrated with a facile synthetic strategy will facilitate the practical application of this material in cost-effective wastewater purification.
