SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Wenting Zhu,Wenting Li,Zhongtian Li,Yanhui Lu,Jieping Fan,Hua Xiong,Hailong Peng
In this study, magnetic porous carbon microsphere composed of molecularly imprinted nanofibers (MPCM@MINs) were constructed and used as an adsorbent for the highly efficient extraction of Brilliant Blue (BB) in food samples. The MPCM@MINs contained imprinted nanofibers and a three-dimensional hierarchical porous structure with a magnetic responsive ability, resulting in a high surface area (368.3 m 2 ·g −1 ), low mass-transfer resistance, large adsorption capacity, and fast separation ability. The maximum adsorption capacity of MPCM@MINs for BB was 39.47 mg·g −1 with excellent selectivity and a high imprinting factor (6.12). Moreover, MPCM@MINs exhibited good anti-interference ability, reusability and reliability. Importantly, BB can be easily and rapidly detected in food samples using MPCM@MINs as an adsorbent followed with UV–Vis method, and the relative standard deviation was lower than 5.85%. Therefore, MPCM@MINs may be a promising adsorbent for pollutant extraction in food samples due to the combination of different strategies of nanofibrous imprinting, magnetic separation, and hierarchical porous structure.
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Xinyu Liu,Bowen Xu,Jianlong Wang
In this study, sponge-like chitosan capsules (CTS-S) were successfully prepared as efficient adsorbent through a facile and green method. The cross-linked porous structure and abundant adsorption sites of CTS-S led to stable and remarkable adsorption efficacy for the purification of wastewater containing anionic dyes in a wide pH range. The highest maximum adsorption capacity for Congo red (CR), Reactive brilliant blue KN-R (KNR), and Methyl blue (MB) were 1372.49, 881.75, and 169.04 mg/g, respectively. Kinetics study suggested that KN-R and CR adsorption processes were best depicted by the PSO model, while PFO model was applicable for MB. Adsorption isotherms of CR, KNR, MB conformed to the Sips model, demonstrating that the adsorption of CR, KNR, MB onto CTS-S was monolayer and heterogeneous. Adsorption mechanism insights further verified that electrostatic forces, hydrogen bonds, and n-π stacking worked for efficient removal of CR, KNR, MB by CTS-S, which was supported by characterization results and DFT calculation. Overall, CTS-S provided a useful and promising option as low-cost and eco-friendly absorbents for the adsorption of synthetic dyes.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2021
·
IF 7.514
Jingke Xu,Leina Dou,Sijie Liu,Lihong Su,Xuechi Yin,Jing Ren,Huilan Hu,Daohong Zhang,Jing Sun,Zhanhui Wang,Jianlong Wang
Furazolidone (FZD) and its metabolite called 3-amino-2-oxazolidinone (AOZ) would induce carcinogenic and mutagenic effects to human. In this work, to develop a novel, stable, and simple point of care testing (POCT) with a potential to social applied for FZD detection, we utilized the aspect of protein staining of coomassie brilliant blue (CBB) to exploit a new CBB-LFIA strategy free of NPs. Only one mixing step is needed during the probe manufacturing process, which requires just 2 h and is a great time saving strategy compared with other methods (requiring 4–33 h for probe preparation). Besides, the cost of CBB-LFIA is 300 times lesser than other LFIA with respect to obtaining the label. The developed CBB-LFIA was successfully applied to detect AOZ with a detection limit of 2 ng mL −1 , without any influence from other potential interfering compounds. The proposed CBB-LFIA exhibited prominent practical application, and possesses considerable utilization potential in the related field.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Yibo Zhang,Peng Hu,Yaseen Muhammad,Ying Tang,Shan Shao,Zhu Gao,Jiaxing Wang,Ruimeng Wang,Yang Hu,Lihan Kuang,Zhongxing Zhao,Zhenxia Zhao
Hollow nano-sphere NH 2 -MIL88(Fe) (HS NMIL88(Fe)) with interfacial defects was fabricated to load laccase as a host. Through metal multi-coordination, dopamine engineered large amount of defective pores with large size on NH 2 -MIL88(Fe) interface. This defect-interfacial structure provided a high-density host for laccases, which efficiently protected enzyme from structure deformation and then inhibited inactivation. Besides, the unique hollow structure will help to fasten reactant diffusivity, and thus improved the catalytic reaction process. Experimental results showed that the maximum immobilized capacity and maximum activity recovery for laccase reached up to 213.2 mg/g and 75.8% beyond many state-of-the-art enzyme hosts, respectively. Meanwhile, the immobilized laccase exhibited better pH, thermal and storage stabilities on HS NMIL88(Fe) than free and loaded on NMIL88(Fe) ones. Thermal deactivation kinetics analysis showed that HS NMIL88(Fe)-Lac had much higher apparent activation energies of (105.2 kJ/mol) than that of free laccase (89.2 kJ/mol). Catalyzing decolorization performance of dye Remazol Brilliant Blue R (RBBR) was finally carried out and exhibited the decolorization rate of 1.8 times and 2.6 times faster than solid NMIL88(Fe)-Lac and free laccase, respectively. Moreover, the interaction mechanism of laccase for RBBR was investigated and revealed by molecular docking.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）