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Zhang Y, Jin S, Liu R, Liu Z, Gong L, Zhang L, Zhao T, Yin W, Chen S, Fa H, Niu L. A portable magnetic electrochemical sensor for highly efficient Pb(II) detection based on bimetal composites from Fe-on-Co-MOF. ENVIRONMENTAL RESEARCH 2024; 250:118499. [PMID: 38368921 DOI: 10.1016/j.envres.2024.118499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/23/2024] [Accepted: 02/14/2024] [Indexed: 02/20/2024]
Abstract
The practical, sensitive, and real-time detection of heavy metal ions is an essential and difficult problem. This study presents the design of a unique magnetic electrochemical detection system that can achieve real-time field detection. To enhance the electrochemical performance of the sensor, Fe2O3@C-800, Co/CoO@/C-600, and CoFe2O4@C-600 magnetic composites were synthesized using three MOFs precursors by the solvothermal method. And the morphology structure and electrochemical properties of as-prepared magnetic composites were researched by X-ray diffraction (XRD), Scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM), specific surface area and porosity analyzer (BET) and differential pulse voltammetry (DPV). The results shown that these composites improve conductivity and stability while preserving the MOFs basic frame structure. Compared with the monometallic MOFs-derived composites, the synergistic effect of the bimetallic composite CoFe2O4@C-600 can significantly enhance the electrochemical performance of the sensor. The linear range for the detection of lead ions was 0.001-60 μM, and the detection limit was 0.0043 μM with a sensitivity of 22.22 μA μM·cm-2 by differential pulse voltammetry. The sensor has good selectivity, stability, reproducibility and can be used for actual sample testing.
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Affiliation(s)
- Yijiao Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Siwei Jin
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Renlong Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China; National-Municipal Joint Engineering Laboratory for Chemical Process Intensification and Reaction, Chongqing University, Chongqing, 400044, China
| | - Zuohua Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China; National-Municipal Joint Engineering Laboratory for Chemical Process Intensification and Reaction, Chongqing University, Chongqing, 400044, China
| | - Li Gong
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Li Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Tengda Zhao
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Wei Yin
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China; National-Municipal Joint Engineering Laboratory for Chemical Process Intensification and Reaction, Chongqing University, Chongqing, 400044, China; Analytical and Testing Center of Chongqing University, Chongqing, 400044, China
| | - Shiqi Chen
- Key Laboratory of Condiment Supervision Technology for State Market Regulation, China; Chongqing Institute for Food and Drug Control, China
| | - Huanbao Fa
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China; National-Municipal Joint Engineering Laboratory for Chemical Process Intensification and Reaction, Chongqing University, Chongqing, 400044, China.
| | - Lidan Niu
- Key Laboratory of Condiment Supervision Technology for State Market Regulation, China; Chongqing Institute for Food and Drug Control, China.
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Hu QH, Tang DY, Xiang YL, Chen X, Lin J, Zhou QH. Magnetic ion-imprinted polyacrylonitrile-chitosan electro-spun nanofibrous membrane as recyclable adsorbent with selective heavy metal removal and antibacterial fouling in water treatment. Int J Biol Macromol 2023; 241:124620. [PMID: 37119910 DOI: 10.1016/j.ijbiomac.2023.124620] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/12/2023] [Accepted: 04/23/2023] [Indexed: 05/01/2023]
Abstract
Water pollution has become one of the most concerned environmental issues on the worldwide scale. Due to the harmfulness of the heavy metal ions and microorganisms in wastewater, novel filtration membranes for water treatment are expected to simultaneously clear these pollutants. Herein, the electro-spun polyacrylonitrile (PAN) based magnetic ion-imprinted membrane (MIIM) were fabricated to achieve both selective removal of Pb(II) ions and excellent antibacterial efficiency. The competitive removal experiments showed that the MIIM displayed efficiently selective removal of Pb(II) (45.4 mg·g-1). Pseudo-second-order mode and Langmuir isotherm equation is well matched with the equilibrium adsorption. The MIIM showed sustained removal performance (~79.0 %) against Pb(II) ions after 7 adsorption-desorption cycles with negligible Fe ions loss of 7.3 %. Moreover, the MIIM exhibited excellent antibacterial properties that >90 % of E. coli and S. aureus were killed by the MIIM. In conclusion, the MIIM provides a novel technological platform for integration of multi-function with selective metal ions removal, excellent cycling reusability, and enhanced antibacterial fouling property, which can be potentially utilized as a promising adsorbent in actual treatment of polluted water.
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Affiliation(s)
- Qiu-Hui Hu
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - De-Yu Tang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Ya-Li Xiang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Xiao Chen
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Juan Lin
- School of Biomedical Sciences and Technology, Chengdu Medical College, Xindu Road No.783, Chengdu, Sichuan 610500, China.
| | - Qing-Han Zhou
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China; Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China.
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Xiang YL, Huang SH, Hu QH, Wang QY, Zhao MQ, Jiang YC, Chen X, Lin J, Zhou QH. Zwitterionic meso-silica/polypeptide hybrid nanoparticles for efficient azithromycin delivery and photodynamic therapy for synergistic treatment of drug-resistant bacterial infection. Int J Biol Macromol 2022; 219:597-610. [PMID: 35952811 DOI: 10.1016/j.ijbiomac.2022.08.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/22/2022] [Accepted: 08/05/2022] [Indexed: 12/21/2022]
Abstract
The treatment of drug-resistant bacterial infections attributed to the overuse of antibiotics still remains a serious challenge globally. Herein, zwitterionic charge switchable meso-silica/polypeptide hybrid nanoparticles (MSPNs) were prepared for the synergistic chemo-photodynamic therapy in the treatment of drug-resistant bacterial infections. Subsequently, azithromycin (AZT) and methylene blue (MB) were loaded in the MSPNs to form the combined chemo-photodynamic therapeutic nanoparticles (MSPNs-AZT/MB) for the treatment of methicillin-resistant Staphylococcus aureus (MRSA). Remarkably, the as-prepared MSPNs-AZT/MB exhibited a negative surface charge of -5.2 mV at physiological pH while switching into positive surface charge of 24.7 mv in an acidic environment, leading to enhanced binding with bacterial surface. The lipase-triggered AZT release up to 77.9 % was achieved, and the loaded MB demonstrated efficient singlet oxygen (1O2) generation for photodynamic therapy. The in vitro experimental results displayed an excellent antibacterial effect against MRSA in both planktonic and biofilm phenotypes. Additionally, the as-prepared MSPNs-AZT/MB exhibited synergistic and enhanced antibacterial infection effect up to 94 % comparing to monotherapy in a mice model. Considering the above advantages, the as-prepared combined chemo-photodynamic therapeutic nanoparticles showed promising biocompatibility and clinical potential for the efficient therapy of drug-resistant bacteria.
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Affiliation(s)
- Ya-Li Xiang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Shuang-Hui Huang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Qiu-Hui Hu
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Qiu-Yue Wang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Mei-Qi Zhao
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Yu-Chen Jiang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Xiao Chen
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Juan Lin
- School of Biomedical Sciences and Technology, Chengdu Medical College, Xindu Road No.783, Chengdu, Sichuan 610500, China.
| | - Qing-Han Zhou
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China; Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China.
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Wang Q, Zhu S, Xi C, Shen Y, Xiang Y, Zhang F. The cross‐linked hyperbranched polyamide‐amines: The preparation and its adsorption for Pb(
II
). J Appl Polym Sci 2022. [DOI: 10.1002/app.51866] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Qian Wang
- College of chemistry and chemical engineering, Key Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province Jishou University Jishou China
| | - Sining Zhu
- College of chemistry and chemical engineering, Key Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province Jishou University Jishou China
| | - Chen Xi
- College of chemistry and chemical engineering, Key Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province Jishou University Jishou China
| | - Yongqiang Shen
- College of chemistry and chemical engineering, Key Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province Jishou University Jishou China
| | - Yanhong Xiang
- College of Physics and Electrical Engineering Jishou University Jishou China
| | - Fan Zhang
- College of chemistry and chemical engineering, Key Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province Jishou University Jishou China
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Wang R, Hu QH, Wang QY, Xiang YL, Huang SH, Liu YZ, Li SY, Chen QL, Zhou QH. Efficiently selective removal of Pb(II) by magnetic ion-imprinted membrane based on polyacrylonitrile electro-spun nanofibers. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120280] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Preparation of Magnetic Surface Ion-Imprinted Polymer Based on Functionalized Fe3O4 for Fast and Selective Adsorption of Cobalt Ions from Water. WATER 2022. [DOI: 10.3390/w14020261] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A novel cobalt ion-imprinted polymer (Co(II)-MIIP) based on magnetic Fe3O4 nanoparticles was prepared by using Co(II) as the template ion, and bis(2-methacryloxyethyl) phosphate and glycylglycine as dual functional monomers. The fabricated material was analyzed by Fourier transform infrared spectroscopy, thermogravimetric analysis, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, Brunauer–Emmett–Teller, X-ray diffraction, and vibrating sample magnetometer. The adsorption experiments with Co(II)-MIIP, found that the maximum adsorption capacity could reach 33.4 mg·g−1, while that of the non-imprinted polymer (Co(II)-NIP) was found to reach 15.7 mg·g−1. The adsorption equilibriums of Co(II)-MIIP and Co(II)-NIP was established within 20 min and 30 min, respectively. The adsorption process could be suitably described by the Langmuir isotherm model and the pseudo-second-order kinetics model. In binary mixtures of Co(II)/Fe(II), Co(II)/Cu(II), Co(II)/Mg(II), Co(II)/Zn(II), and Co(II)/Ni(II), the relative selectivity coefficients of Co(II)-MIIP toward Co(II)-NIP were 5.25, 4.05, 6.06, 11.81, and 4.48, respectively. The regeneration experiments indicated that through six adsorption–desorption cycles, the adsorption capacity of Co(II)-MIIP remained nearly 90%.
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