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Zhang L, Xie J, Luo X, Gong X, Zhu M. Enhanced hydrophobicity of shell-ligand-exchanged ZIF-8/melamine foam for excellent oil-water separation. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Rabbani Y, Shariaty-Niassar M, Ebrahimi SAS. The optimization effect of different parameters on the super hydrophobicity of prickly-shaped carbonyl iron particles. RSC Adv 2022; 12:12760-12772. [PMID: 35480354 PMCID: PMC9040902 DOI: 10.1039/d1ra09334g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/22/2022] [Indexed: 11/21/2022] Open
Abstract
In this study, the effects of glucose concentration, temperature, and time parameters of the hydrothermal reaction on the growth of prickly-shaped carbonyl iron were studied by using an experimental design to obtain the maximum superhydrophobicity of the magnetic particles. The experimental design was carried out by Response Surface Methodology (RSM) analysis using the Central Composite Design (CCD) method. Field Emission Scanning Electron Microscopy (FESEM) analysis was performed to qualitatively assess the growth of the prickly-shaped carbonyl iron, and Water Contact Angle (WCA) analysis was used to quantify the superhydrophobicity of the resulting particles. The results revealed that the elevation of the concentration and time increased the roughness (prickly shape) of the particle surface and contact angle up to a point, after which it did not affect them. The temperature elevation caused an increase in the prickly shape of the particles and contact angles and then reduced them. The optimum concentration, temperature, and time were 0.75 Mol L−1, 170 °C, and 4 hours, respectively, for the maximum growth of prickly-shaped particles and the maximum contact angle was 169.7°. Fourier-Transform Infrared Spectroscopy (FT-IR) and thermogravimetric analysis (TGA) results confirmed the presence of glucose and stearic acid chemically bonded to the carbonyl iron particles. The X-ray Diffraction (XRD) results showed that the carbonyl iron had been not converted into iron oxide during the synthesis procedures of the superhydrophobic particles. Vibrating Sample Magnetometer (VSM) analysis showed that making the particles superhydrophobic had little effect on the magnetization reduction. The effects of glucose concentration, temperature, and time parameters of the hydrothermal reaction on the growth of prickly-shaped magnetic particles were studied by using an experimental design to obtain the maximum superhydrophobicity.![]()
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Affiliation(s)
- Y Rabbani
- Transport Phenomena & Nanotechnology (TPNT) Lab., School of Chemical Engineering, College of Engineering, University of Tehran Tehran 111554563 Iran
| | - M Shariaty-Niassar
- Transport Phenomena & Nanotechnology (TPNT) Lab., School of Chemical Engineering, College of Engineering, University of Tehran Tehran 111554563 Iran
| | - S A Seyyed Ebrahimi
- Advanced Magnetic Materials Research Center, School of Metallurgy and Materials, College of Engineering, University of Tehran Tehran 111554563 Iran
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Nie Y, Zhang S, He Y, Zhang L, Wang Y, Li S, Wang N. One-step modification of electrospun PVDF nanofiber membranes for effective separation of oil–water emulsion. NEW J CHEM 2022. [DOI: 10.1039/d1nj05436h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
TA-APTES-SP coating is used to optimize the wettability and stability of PVDF nanofiber membranes for oil–water separation.
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Affiliation(s)
- Yiling Nie
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Shihong Zhang
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Yi He
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Liyun Zhang
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Yuqi Wang
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Shuangshuang Li
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Na Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
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Wang K, He H, Wei B, Zhang TC, Chang H, Li Y, Tian X, Fan Y, Liang Y, Yuan S. Multifunctional Switchable Nanocoated Membranes for Efficient Integrated Purification of Oil/Water Emulsions. ACS APPLIED MATERIALS & INTERFACES 2021; 13:54315-54323. [PMID: 34735107 DOI: 10.1021/acsami.1c15024] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Surfaces with unusual under-liquid dual superlyophobicity are attractive on account of their widespread applications, but their development remains difficult due to thermodynamic contradiction. Additionally, these surfaces may suffer from limited antifouling ability, which has restricted their practical applications. Herein, we report a successful in situ growth of a hybrid zeolitic imidazolate framework-8 and zinc oxide nanorod on a porous poly(vinylidene fluoride) membrane (ZIF-8@ZnO-PPVDF) and its application as a self-cleaning switchable barrier material in rapid filtration for emulsified oily wastewater. The novel ZIF-8@ZnO-PPVDF exhibits superior mechanical strength, reversible under-liquid dual superlyophobicity, photocatalytic self-cleaning property, and an effective alternate separation capacity toward both oil-in-water (O/W) and water-in-oil (W/O) emulsions with ultrahigh fluxes and efficiencies (>99%). By simply using a "bait-hook-eliminate" method to separate the O/W emulsions containing soluble organic pollutants, we demonstrate that the ZIF-8@ZnO-PPVDF can achieve stable separation fluxes over 600 L m-2 h-1 with high efficiencies and be completely/nondestructively regenerated by visible-light irradiation after each cycle. This study would demonstrate a new approach to prepare an under-liquid dual superlyophobic revivable membrane for various applications.
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Affiliation(s)
- Kai Wang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
| | - Huaqiang He
- Low-carbon Technology & Chemical Reaction Engineering Lab, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Baibing Wei
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Tian C Zhang
- Civil & Environmental Engineering Department, University of Nebraska-Lincoln, Omaha, Nebraska 68182-0178, United States
| | - Haiqing Chang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yingqi Li
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xiaobao Tian
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yubo Fan
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
| | - Ying Liang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Shaojun Yuan
- Civil & Environmental Engineering Department, University of Nebraska-Lincoln, Omaha, Nebraska 68182-0178, United States
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