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Zhang S, Chen M, You Y, Wang Y, Zhu Y. Mechanism of Interconnected Pore Formation in High Internal Phase Emulsion-Templated Polymer. ACS Macro Lett 2024:903-907. [PMID: 38990053 DOI: 10.1021/acsmacrolett.4c00207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
High internal phase emulsion-templated polymer, named polyHIPE, has received widespread attention due to its great potential applications in many fields, such as separation, adsorption, heterogeneous catalysis, and sound absorption. The broad applicability is largely dependent on its adjustable opening structure. However, the question of why polyHIPE has an interconnected pore network structure is still to be discussed. Herein, different types (w/o, o/w, and o/o) of HIPEs are prepared and subsequently detected with laser scanning confocal microscopy (LSCM), and the polyHIPEs obtained by curing the HIPEs are characterized by SEM. The observations suggest that the interconnected pore formation is primarily due to the presence of the surfactant-rich phase in the film between the neighboring droplets in HIPE. The interconnected pores are generated by removal of the surfactant-rich domains in the postcuring procedure, and their sizes would be enlarged if the solubility of the surfactant in the continuous phase decreases in the curing stage.
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Affiliation(s)
- Shengmiao Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Mingjun Chen
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yijing You
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yiling Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yun Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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Montazeri M, Norouzbeigi R. Investigation of synergistic effects incorporating esterified lignin and guar gum composite aerogel for sustained oil spill cleanup. Sci Rep 2024; 14:13892. [PMID: 38886286 PMCID: PMC11183076 DOI: 10.1038/s41598-024-64623-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 06/11/2024] [Indexed: 06/20/2024] Open
Abstract
The recently developed aerogel demonstrates a high capacity for pollutant absorption, making it an environmentally friendly option for oily water treatment. In an effort to reduce the adverse effects of the black liquor accumulation in the pulp industry, this study focused on utilizing the mentioned abundant bio-resource lignin, which can be applied to various high-value applications such as 3D porous materials for oil spill cleanup. Lignin, precipitated from the black liquor, was esterified using maleic anhydride as the esterifying reagent to enhance the hydrophobicity. Then, the composite aerogel fabricated from esterified lignin and guar gum (GG) was successfully prepared through the facile freeze-drying, using glutaraldehyde (GA) as the cross-linker. The resulting aerogel exhibited high porosity values exceeding 95%, low density (27.4 mg/cm3), and an impressive absorption capacity of 32.5 g/g for sunflower oil. These results demonstrate the potential of black liquor utilization as a bio-waste source of lignin and highlight the cost-effective guar gum-esterified lignin composite aerogel, which exhibits remarkable oil absorption capabilities and environmental sustainability promotion.
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Affiliation(s)
- Mahnaz Montazeri
- Nanomaterials and Surface Technology Research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Narmak, P. B. 16765-163, Tehran, Iran
| | - Reza Norouzbeigi
- Nanomaterials and Surface Technology Research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Narmak, P. B. 16765-163, Tehran, Iran.
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Zhen H, Yan X, Chen C, Liu H, Yang X, Su Y, Yang L, Wang X, Zhang Z. Removal of Fe(III)/Al(III)/Mg(II) by phosphonic group functionalized resin in wet-process phosphoric acid: Mechanism and intrinsic selectivity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27600-2. [PMID: 37209342 DOI: 10.1007/s11356-023-27600-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 05/09/2023] [Indexed: 05/22/2023]
Abstract
The removal of iron ions (Fe(III)), aluminum ions (Al(III)), and magnesium ions (Mg(II)) in phosphoric acid (H3PO4) solution is vital for the production of H3PO4 and supply of phosphate fertilizer. However, the mechanism and intrinsic selectivity for removal of Fe(III), Al(III), and Mg(II) from wet-process phosphoric acid (WPA) by phosphonic group (-PO3H2) functionalized MTS9500 are still unclear. In this work, the removal mechanisms were determined via combined analysis of FT-IR, XPS, molecular dynamics (MD), and quantum chemistry (QC) simulations based on density functional theory (DFT). The metal-removal kinetics and isotherms were further studied to confirm the removal mechanisms. The results indicate that Fe(III), Al(III), and Mg(II) interact with the -PO3H2 functional groups in MTS9500 resin with sorption energies of -126.22 kJ·mol-1, -42.82 kJ·mol-1, and -12.94 kJ·mol-1, respectively. Moreover, the intrinsic selectivities of the resin for Fe(III), Al(III), and Mg(II) removal were quantified by the selectivity coefficient (Si/j). The SFe(III)/Al(III), SFe(III)/Mg(II) and SAl(III)/Mg(II) are 18.2, 55.1 and 3.02, respectively. This work replenishes sorption theory that can be used in the recycling of electronic waste treatment acid, sewage treatments, hydrometallurgy, and purification of WPA in industry.
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Affiliation(s)
- Honggang Zhen
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China
| | - Xuefang Yan
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China
| | - Chaojiu Chen
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China
| | - Haozhou Liu
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China
| | - Xiuying Yang
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China
| | - Yingli Su
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China
| | - Lin Yang
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China.
| | - Xinlong Wang
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China
| | - Zhiye Zhang
- School of Chemical Engineering, Sichuan University, 24 South 1st Section, 1st Ring Road, Wuhou District, Chengdu, 610065, Sichuan, China
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Cheng B, Yan S, Li Y, Zheng L, Wen X, Tan Y, Yin X. In-situ growth of robust and superhydrophilic nano-skin on electrospun Janus nanofibrous membrane for oil/water emulsions separation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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3D superhydrophobic/superoleophilic sponge with hierarchical porous structure and robust stability for high-efficiency and continuous separation of oily wastewater. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Teng D, Xu Y, Zhao T, Zhang X, Li Y, Zeng Y. Zein adsorbents with micro/nanofibrous membrane structure for removal of oils, organic dyes, and heavy metal ions in aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:128004. [PMID: 34915293 DOI: 10.1016/j.jhazmat.2021.128004] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/01/2021] [Accepted: 12/04/2021] [Indexed: 06/14/2023]
Abstract
Developing multi-functional media for effectively removing different contaminants coexisted in wastewater system is highly desired. Herein, zein, a natural protein possessing abundant functional groups in molecule, is chosen to be fabricated into micro/nanofibrous membranes as adsorbents and separation media. Zein fibers with novel groove ribbon structures, which possess better structural characteristics, are designed for obtaining good adsorption performance. The adsorption performances of zein fiber membranes are evaluated. The results show that zein fiber membranes have the adsorption capacities up to 94 g/g for motor oil, 168 mg/g for Congo red, and 189 mg/g for Pb2+ ion for 1000 mg/L initial solution concentration, showing considerable competitiveness as compared with the reported adsorbents. The zein membrane with groove ribbon fiber morphology exhibits optimal adsorption capability and can be attractive multi-functional separation media.
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Affiliation(s)
- Defang Teng
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Yuanqiang Xu
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Tienan Zhao
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Xiaomin Zhang
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Ying Li
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Yongchun Zeng
- College of Textiles, Donghua University, Shanghai 201620, China.
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Bio-inspired castor oil modified cellulose aerogels for oil recovery and emulsion separation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128043] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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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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