Facile modification of NH2-MIL-125(Ti) to enhance water stability for efficient adsorptive removal of crystal violet from aqueous solution | |
Department | 固体润滑国家重点实验室 |
Wen, Gang1,2; Guo ZG(郭志光)1,2; Guo ZG(郭志光) | |
2018 | |
Source Publication | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
ISSN | 0927-7757 |
Volume | 541Pages:58-67 |
Abstract | Metal-organic framework (MOF) has attracted much attention due to the large pore volumes and high inner surface area, those properties of which can be applied in gas storage, catalysis and liquid phase adsorption. However, the stability of most MOF will become fragile when exposed to water, yielding a critical issue for their practical applications. Therefore, postsynthetic modification on water sensitive MOF is particularly indispensable. Here, we contribute a facile method to impact superhydrophobicity on water sensitive NH2-MIL-125(Ti) as demonstrated by chemically coating the exterior of MOF crystals with PDMS and detect its mechanism of dye adsorption. The MOF crystals exhibit superhydrophobicity (CA = 151 ± 2°) in addition to retaining high crystallinity and intact porosity after soaked in water for 7 days. Meaningfully, the adsorption capacity with 129.87 mg/g of modified MOF are much higher than initial MOF in dye adsorption. Additionally, The experimental data fit very well to Langmuir isotherm and adsorption preudo-second-order kinetic model. This study thereby completes a breakthrough for dye adsorption on water sensitive MOF, which enlarges the practical application of water sensitive MOF. |
Keyword | Superhydrophobic Nh2-mil-125(Ti) Pdms Water Sensitive Dye Adsorption |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.colsurfa.2018.01.011 |
Funding Organization | the National Nature Science Foundation of China (NOS. 51522510;51675513;51735013) |
Indexed By | SCI |
Language | 英语 |
Funding Project | 空间润滑材料研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23701 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Guo ZG(郭志光) |
Affiliation | 1.Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People’s Republic of China 2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China |
Recommended Citation GB/T 7714 | Wen, Gang,Guo ZG,Guo ZG. Facile modification of NH2-MIL-125(Ti) to enhance water stability for efficient adsorptive removal of crystal violet from aqueous solution[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects,2018,541:58-67. |
APA | Wen, Gang,Guo ZG,&郭志光.(2018).Facile modification of NH2-MIL-125(Ti) to enhance water stability for efficient adsorptive removal of crystal violet from aqueous solution.Colloids and Surfaces A: Physicochemical and Engineering Aspects,541,58-67. |
MLA | Wen, Gang,et al."Facile modification of NH2-MIL-125(Ti) to enhance water stability for efficient adsorptive removal of crystal violet from aqueous solution".Colloids and Surfaces A: Physicochemical and Engineering Aspects 541(2018):58-67. |
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1-s2.0-S092777571830(4050KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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