Novel pitaya-inspired well-defined core–shell nanospheres with ultrathin surface imprinted nanofilm from magnetic mesoporous nanosilica for highly efficient chloramphenicol removal

Dai, Jiangdong; He, Jinsong; Xie, Atian; Gao, Lin; Pan, Jianming; Chen, Xiang; Zhou, Zhiping; Xiao, Wen‐Jing; Yan, Yongsheng

doi:10.1016/j.cej.2015.09.050

Cited by 76 publications

(34 citation statements)

References 39 publications

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“…The X-ray diffraction patterns of SNs and MSNs/MIP were characterized. As shown in Supporting Information Figure S5, the characteristic diffraction peak of SNs (2θ = 24.4 • ) was consistent with that of MSNs/MIP, indicating that the structure of SiO 2 was in amorphous phase [22]. The unchanged peak positions manifested that the amorphous structure of SiO 2 was maintained during the preparation process of MSNs/MIP.…”

Section: X-ray Diffraction Patternssupporting

confidence: 69%

Preparation of mesoporous silica nanoparticles molecularly imprinted polymer for efficient separation and enrichment of perfluorooctane sulfonate

Cheng

Zhu

et al. 2018

J of Separation Science

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As a persistent organic pollutant, perfluorooctane sulfonate has drawn a worldwide attention. In this contribution, a novel molecularly imprinted polymer based on mesoporous silica nanoparticles was prepared for efficient separation and enrichment of perfluorooctane sulfonate in water samples. The polymer was characterized by transmission electron microscopy, Fourier transform infrared spectroscopy, X‐ray diffraction, and N2 adsorption/desorption experiments. The static adsorption experiments and the adsorption kinetic tests were conducted. The results showed that the adsorbents had high adsorption capacity (21.10 mg/g) and short adsorption equilibration time (25 min). Meanwhile, the effect of mesoporous silica nanoparticles on the adsorption capacity was investigated. The results indicated that the mesoporous structure helped to increase the adsorption capacity of adsorbent to adsorbate. Besides, the adsorbents show good specificity and good reusability with the adsorption capacity of adsorbent toward perfluorooctane sulfonate decreasing <5% after five adsorption–desorption cycles. The mesoporous silica nanoparticles molecularly imprinted polymer has been used successfully for the removal of perfluorooctane sulfonate in environmental water samples with relative standard deviation ≤4.64%.

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Section: X-ray Diffraction Patternssupporting

confidence: 69%

Preparation of mesoporous silica nanoparticles molecularly imprinted polymer for efficient separation and enrichment of perfluorooctane sulfonate

Cheng

Zhu

et al. 2018

J of Separation Science

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“…The K d and Q max of the binding sites are 2091.66 mg/L (6.47 mmol/L) and 173.3 mg/g (0.536 mmol/g) according to the slope and intercept of the line. The K d and Q max values of CAP-MIPs are significantly larger than the K d (329.9 μmol/L) and Q max (17.1 μmol/g) of CAP-MIPs reported in the reference [19]. It is obvious that the CAP-MIPs prepared in this study have better selective adsorption.…”

Section: The Adsorption Property Of Polymercontrasting

confidence: 63%

Theoretical and experimental research on self‐assembly system of molecularly imprinted polymers formed via chloramphenicol and methacrylic acid

Liu

Wang

Tang

et al. 2018

J of Separation Science

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Chloramphenicol was chosen as the imprinting molecule and the methacrylic acid was chosen as the functional monomer to prepare molecularly imprinted polymers. Ethylene glycol dimethacrylate, pentaerythritol triacrylate, and trimethylolpropane trimethylacrylate were used as the cross‐linking agents, respectively. The interaction processes between chloramphenicol and methacrylic acid were simulated by using the ωB97XD/6‐31G (d,p) method. The self‐assembled configuration, bonding sites, binding number, binding energy, and interaction principle of stable complex formed by chloramphenicol and methacrylic acid with different molar ratios have been studied. The selectivity of the most stable complex formed from chloramphenicol and methacrylic acid was discussed with the thiamphenicol and florfenicol as the analogues of chloramphenicol. The results showed that chloramphenicol and methacrylic acid were interacted through the hydrogen bonds. When the molar ratio was 1:10 and pentaerythritol triacrylate as the cross‐linking agent, the ordered complex formed by chloramphenicol and methacrylic acid has the largest amount of hydrogen bonds and the lowest binding energy. Scatchard analysis showed that the maximum apparent adsorption capacity was 173.3 mg/g (0.536 mol/g), and the selection factor of florfenicol was the largest. This study provides a reliable theoretical and experimental basis for the design, preparation, and characterization of chloramphenicol molecularly imprinted polymers.

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“…Indeed, NIPs themselves are interesting for some applications [67,68] or have comparable performance to MIPs [69][70][71][72]. Usually they have their own selectivity [73][74][75][76][77] and during the imprinting process, this selectivity and/or their adsorption ability is only slightly improved (if at all). These data from the literature make it likely that MIPs can occasionally be replaced by NIPs in practical applications.…”

Section: Replacement Of the Mip By Non-imprinted Polymersmentioning

confidence: 99%

Isotherm charts for material selection and method development with molecularly imprinted polymers and other sorbents

Dorkó

Tamás

Horvai

2017

Talanta

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A simple and efficient method is presented for assessing molecularly imprinted polymers (MIP) and other sorbents from the point of view of practical applications. The adsorption isotherms of the compounds, which need to be separated or detected in an application, are constructed from a small number of measured points on a log-log chart and then are compared graphically. Despite its simplicity and robustness this method reveals the information needed for optimal selection between MIPs and alternative sorbents. The design of separation or detection methods with MIPs is also supported by the proposed graphical isotherm comparison. Many experimental isotherms are presented supporting the proposed method.

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Novel pitaya-inspired well-defined core–shell nanospheres with ultrathin surface imprinted nanofilm from magnetic mesoporous nanosilica for highly efficient chloramphenicol removal

Cited by 76 publications

References 39 publications

Preparation of mesoporous silica nanoparticles molecularly imprinted polymer for efficient separation and enrichment of perfluorooctane sulfonate

Preparation of mesoporous silica nanoparticles molecularly imprinted polymer for efficient separation and enrichment of perfluorooctane sulfonate

Theoretical and experimental research on self‐assembly system of molecularly imprinted polymers formed via chloramphenicol and methacrylic acid

Isotherm charts for material selection and method development with molecularly imprinted polymers and other sorbents

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