Highly porous aerogels based on imine chemistry: syntheses and sorption properties

Zhang, Jianyong; Liu, Liping; Liu, Hui; Lin, Minjuan; Li, Siyan; Ouyang, Gangfeng; Chen, Liuping; Su, Cheng‐Yong

doi:10.1039/c5ta00557d

Cited by 55 publications

(28 citation statements)

References 92 publications

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“…[4][5][6][7] They have low solubility in water but are delivered through the food chain and finally harm human health. 10,11 For example, activated carbon is a low cost adsorbent for PAHs, but it doesn't work well because of its rigid structure and weak affinity for PAHs ( ppm level of residual PAHs in water). 10,11 For example, activated carbon is a low cost adsorbent for PAHs, but it doesn't work well because of its rigid structure and weak affinity for PAHs ( ppm level of residual PAHs in water).…”

Section: Introductionmentioning

confidence: 99%

A multifunctional statistical copolymer vesicle for water remediation

Xiao

2016

Polym. Chem.

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Multifunctional statistical copolymers can be simply synthesized in one step without tedious and timeconsuming procedures. In addition, the fuzzy boundary between different functional groups in the statistical copolymers can facilitate the fabrication of new functional nanomaterials. Herein, we designed a novel multifunctional vesicle based on a statistical copolymer, poly[[2-hydroxy-3-(naphthalen-1-ylamino) propyl methacrylate]-stat-[2-(diethylamino)ethyl methacrylate]] [P(HNA 21 -stat-DEA 35 )] which can be synthesized by reversible addition-fragmentation transfer (RAFT) polymerization in one step. The HNA moiety is designed for capturing polycyclic aromatic hydrocarbons (PAHs) by π-π stacking, while the DEA moiety is engineered to immobilize gold nanoparticles for facilitating the reduction of 4-nitrophenol (4-NP) in aqueous solution. This vesicle showed excellent ability in water remediation by absorbing PAHs and accelerating the reduction of 4-nitrophenol (4-NP). Overall, this multifunctional statistical copolymer vesicle provides a new insight for designing multifunctional water remediation materials. † Electronic supplementary information (ESI) available: Synthesis, and characterization. See

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Section: Introductionmentioning

confidence: 99%

A multifunctional statistical copolymer vesicle for water remediation

Xiao

2016

Polym. Chem.

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“…This value is lower than those reported for the most strongly interacting MOFs such as Cr-MIL-100 (62 kJ·mol −1 ) [ 33 ], Cr-MIL-101 (44 kJ·mol −1 ) [ 33 ], and Mg-MOF-74 (42 kJ·mol −1 ) [ 34 ], but of the same order of well-known Al-MIL-53 (35 kJ·mol −1 ) [ 35 ], Ni-STA-12 (35 kJ·mol −1 ) [ 36 ], Zn2(dobdc) (26 kJ·mol −1 ) [ 37 ] and Cu-HKUST-1 (29 kJ·mol −1 ) [ 38 ]. In any case, it can be regarded as a relatively high value for a mesoporous material [ 39 ] probably due to the presence of the exocyclic amino groups decorating the surface of the nanocrystals, which has been demonstrated to effectively interact with CO 2 [ 40 , 41 ].…”

Section: Resultsmentioning

confidence: 99%

Aerogels of 1D Coordination Polymers: From a Non-Porous Metal-Organic Crystal Structure to a Highly Porous Material

et al. 2016

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Abstract:The processing of an originally non-porous 1D coordination polymer as monolithic gel, xerogel and aerogel is reported as an alternative method to obtain novel metal-organic porous materials, conceptually different to conventional crystalline porous coordination polymer (PCPs) or metal-organic frameworks (MOFs). Although the work herein reported is focused upon a particular kind of coordination polymer ([M(µ-ox)(4-apy) 2 ] n , M: Co(II), Ni(II)), the results are of interest in the field of porous materials and of MOFs, as the employed synthetic approach implies that any coordination polymer could be processable as a mesoporous material. The polymerization conditions were fixed to obtain stiff gels at the synthesis stage. Gels were dried at ambient pressure and at supercritical conditions to render well shaped monolithic xerogels and aerogels, respectively. The monolithic shape of the synthesis product is another remarkable result, as it does not require a post-processing or the use of additives or binders. The aerogels of the 1D coordination polymers are featured by exhibiting high pore volumes and diameters ranging in the mesoporous/macroporous regions which endow to these materials the ability to deal with large-sized molecules. The aerogel monoliths present markedly low densities (0.082-0.311 g¨cm´3), an aspect of interest for applications that persecute light materials.

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“…Another class of inorganic-organic hybrid material, i.e., metal-organic aerogels (MOAs), which possess hierarchically porous structures, were also used as SPME fiber coatings for the extraction of phenols, benzene homologues, organochlorine pesticides, and polycyclic aromatic hydrocarbons [165,166]. However, the applications of MOAs in SPME are contemporarily far less studied than those of MOFs.…”

Section: Mofsmentioning

confidence: 99%

Development of Novel Solid-Phase Microextraction Fibers

Xu¹,

Ouyang²

2016

Solid Phase Microextraction

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The basic principles for the preparation of SPME fibers with satisfying selectivity, sensitivity, loading capacities and stabilities are summarized here in terms of the physicochemical properties of the coating materials and the supporting substrates of SPME fibers. While the main part of this chapter focuses on the advances in developing the most widely used coating materials, including ionic liquids, polymeric ionic liquids, carbonaceous materials, molecularly imprinted polymers, metal-organic frameworks, metals and metal oxides, conductive polymers, modified silica, as well as their composites, into SPME fibers. Meanwhile, the applications of novel SPME fibers in analyzing diverse analytes in different sample matrices are briefly reviewed, including the emerging applications of SPME in the extraction of bioactive compounds in living animals and plants.Keywords SPME fiber coating Á Ionic liquid Á Polymeric ionic liquid Á Graphene Á Carbon nanotube Á Molecularly imprinted polymer Á Metal-organic framework Á Metal and metal oxide Á Conductive polymer Á Modified silica IntroductionThe outstanding features of solid-phase microextraction (SPME), including rapid and simple operating procedures, slight disturbance to investigated systems, reduced consumption of solvents, and feasibility of automation, continuously inspire new explorations of SPME in various frontiers, such as metabolome detection [1], central nervous systems studies [2], pharmacokinetic studies [3], environmental analysis [4], and food analysis [5]. On the other hand, the diversity of the physicochemical properties of the target analytes and the complicity of the sample matrices require the development of new SPME devices to nourish the new

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Highly porous aerogels based on imine chemistry: syntheses and sorption properties

Abstract: A series of novel imine aerogels have been obtained based on dynamic covalent chemistry that show high porosity and good sorption performance.

Cited by 55 publications

References 92 publications

A multifunctional statistical copolymer vesicle for water remediation

A multifunctional statistical copolymer vesicle for water remediation

Aerogels of 1D Coordination Polymers: From a Non-Porous Metal-Organic Crystal Structure to a Highly Porous Material

Development of Novel Solid-Phase Microextraction Fibers

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