Amorphous Fe/Mn bimetal-organic frameworks: outer and inner structural designs for efficient arsenic(iii) removal

	Amorphous Fe/Mn bimetal-organic frameworks: outer and inner structural designs for efficient arsenic(iii) removal
	Zhang, Tianshu; Wang, Jing; Zhang, Wentao; Yang, Chengyuan; Zhang, Liang; Zhu, Wenxin; Sun, Jing; Li, Guoliang; Li, Tao; Wang, Jianlong
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2019
卷号	7 期号:6
英文摘要	Highly efficient decontamination of naturally occurring As(III) from aqueous media remains a rigorous task for public health and ecosystem protection. As its increasingly acute toxicity and mobile characteristics than those of As(V), it is imperative to exploit a technique for the simultaneous removal and detoxication of As(III). Herein, a novel strategy involving outer and inner structural engineering of an amorphous FeMn-MOF-74 adsorbent was developed via a facile temperature-controlled crystallization method, which integrated the inner amorphous structure with low-coordinated active centers and the outer optimized metal atomic ratio with homogeneous adsorption/oxidation sites for generating the synergistic effects of As(III) removal. An appropriate Fe/Mn ratio (similar to 1.96) with optimized temperature (denoted as aFMM-120) endows the synergic effect of iron and high-valence manganese nodes in the framework with the highest experimental adsorption capacity of 161.6 mg g(-1) among MOF-based arsenic adsorbents. Detailed characterizations through X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy demonstrated the redox behavior of Mn species and surface coordination of oxygen molecules in FeO clusters toward As(III). All these results imply that amorphous aFMM-120 is an effective adsorptive oxidation material for efficient arsenic-contaminated water remediation.
内容类型	期刊论文
源URL	[http://210.75.249.4/handle/363003/59857]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhang, Tianshu,Wang, Jing,Zhang, Wentao,et al. Amorphous Fe/Mn bimetal-organic frameworks: outer and inner structural designs for efficient arsenic(iii) removal[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(6).
APA	Zhang, Tianshu.,Wang, Jing.,Zhang, Wentao.,Yang, Chengyuan.,Zhang, Liang.,...&Wang, Jianlong.(2019).Amorphous Fe/Mn bimetal-organic frameworks: outer and inner structural designs for efficient arsenic(iii) removal.JOURNAL OF MATERIALS CHEMISTRY A,7(6).
MLA	Zhang, Tianshu,et al."Amorphous Fe/Mn bimetal-organic frameworks: outer and inner structural designs for efficient arsenic(iii) removal".JOURNAL OF MATERIALS CHEMISTRY A 7.6(2019).