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Wei X, Meng R, Bai Y, Liu W, Zhou H, Wang X, Xu B. Hydrophobic and oleophilic open-cell foams from in-situ microfibrillation blends of poly(lactic acid) and polytetrafluoroethylene: Selective oil-adsorption behaviors. Int J Biol Macromol 2023; 227:273-284. [PMID: 36549028 DOI: 10.1016/j.ijbiomac.2022.12.196] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Confronted with severe water contamination induced by the spillage of oils, seeking oil-selective adsorbent to recover oil from oily wastewater is extremely urgent. In particular, the functionalized polymer foams with open-cell structures are highly promising oil-selective adsorbent. Herein, a simple, effective and green method was presented to prepare open-cell poly(lactic acid) (PLA)/polytetrafluoroethylene (PTFE) foams with selective oil-adsorption behaviors via melt blending and supercritical CO2 batch foaming technique. The introduction of PTFE had a distinct positive influence on the melt viscoelasticity and crystallization performances of various PLA specimens. The resulted PLA/PTFE4 foam with a volume expansion ratio of 10.17 ± 0.93 and a cell density of 1.58 × 108 cells/cm3 possessed the highest open-cell content of 90.81 ± 0.78 %. Meanwhile, PLA/PTFE4 foam revealed oil/water selective adsorption capacity of 1.2-6.1 g/g for various organic solvents and oils. The adsorption capacity of PLA/PTFE4 foam for CCl4 exhibited no significant decrement during ten adsorption-desorption cycles. This research offered a guideline for the manufacture of green environmental open-cell polymer foams for oil-selective adsorption.
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Affiliation(s)
- Xinyi Wei
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Ruijing Meng
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Yu'an Bai
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Wei Liu
- School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang 550003, People's Republic of China
| | - Hongfu Zhou
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China.
| | - Xiangdong Wang
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Bo Xu
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, People's Republic of China.
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Hexagonal Boron Nitride/PCL/PLG Coatings on Borate Bioactive Glass Scaffolds for Bone Regeneration. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02246-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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3
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Bae M, Oh JK, Liu S, Nagabandi N, Yegin Y, DeFlorio W, Cisneros-Zevallos L, Scholar EMA. Nanotoxicity of 2D Molybdenum Disulfide, MoS 2, Nanosheets on Beneficial Soil Bacteria, Bacillus cereus and Pseudomonas aeruginosa. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1453. [PMID: 34072663 PMCID: PMC8229097 DOI: 10.3390/nano11061453] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/26/2021] [Accepted: 05/26/2021] [Indexed: 12/21/2022]
Abstract
Concerns arising from accidental and occasional releases of novel industrial nanomaterials to the environment and waterbodies are rapidly increasing as the production and utilization levels of nanomaterials increase every day. In particular, two-dimensional nanosheets are one of the most significant emerging classes of nanomaterials used or considered for use in numerous applications and devices. This study deals with the interactions between 2D molybdenum disulfide (MoS2) nanosheets and beneficial soil bacteria. It was found that the log-reduction in the survival of Gram-positive Bacillus cereus was 2.8 (99.83%) and 4.9 (99.9988%) upon exposure to 16.0 mg/mL bulk MoS2 (macroscale) and 2D MoS2 nanosheets (nanoscale), respectively. For the case of Gram-negative Pseudomonas aeruginosa, the log-reduction values in bacterial survival were 1.9 (98.60%) and 5.4 (99.9996%) for the same concentration of bulk MoS2 and MoS2 nanosheets, respectively. Based on these findings, it is important to consider the potential toxicity of MoS2 nanosheets on beneficial soil bacteria responsible for nitrate reduction and nitrogen fixation, soil formation, decomposition of dead and decayed natural materials, and transformation of toxic compounds into nontoxic compounds to adequately assess the environmental impact of 2D nanosheets and nanomaterials.
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Affiliation(s)
- Michael Bae
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA; (M.B.); (S.L.); (N.N.); (Y.Y.); (W.D.)
| | - Jun Kyun Oh
- Department of Polymer Science and Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si 16890, Gyeonggi-do, Korea;
| | - Shuhao Liu
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA; (M.B.); (S.L.); (N.N.); (Y.Y.); (W.D.)
| | - Nirup Nagabandi
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA; (M.B.); (S.L.); (N.N.); (Y.Y.); (W.D.)
| | - Yagmur Yegin
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA; (M.B.); (S.L.); (N.N.); (Y.Y.); (W.D.)
| | - William DeFlorio
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA; (M.B.); (S.L.); (N.N.); (Y.Y.); (W.D.)
| | - Luis Cisneros-Zevallos
- Department of Nutrition and Food Science, Texas A&M University, College Station, TX 77843, USA;
- Department of Horticultural Science, Texas A&M University, College Station, TX 77843, USA
| | - Ethan M. A. Scholar
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA; (M.B.); (S.L.); (N.N.); (Y.Y.); (W.D.)
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA
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4
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Li B, Zhao G, Wang G, Zhang L, Gong J, Shi Z. Biodegradable PLA/PBS open-cell foam fabricated by supercritical CO2 foaming for selective oil-adsorption. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117949] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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5
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Joy J, George E, Haritha P, Thomas S, Anas S. An overview of boron nitride based polymer nanocomposites. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200507] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jomon Joy
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
| | - Elssa George
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
| | - Prakashan Haritha
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
| | - Sabu Thomas
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
- International and Inter University Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
| | - Saithalavi Anas
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
- Advanced Molecular Materials Research Centre Mahatma Gandhi University Kottayam Kerala India
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Minju N, Ananthakumar S, Savithri S. Superswelling Hybrid Sponge from Water Glass for Selective Absorption of Crude Oil and Organic Solvents. ACS OMEGA 2019; 4:17990-18001. [PMID: 31720503 PMCID: PMC6843722 DOI: 10.1021/acsomega.9b01655] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
A lightweight super hydrophilic hybrid sponge is designed and demonstrated out of water glass and an organic polymer, which has a macroporous flaky nature and is superflexible with an apparent density of 0.069 g cc-1, ∼97% porosity, and 3000% water uptake. The octadecyltrimethoxy silane-modified hybrid sponge exhibits selective absorption of oil and organic solvents in open water. An absorption capacity in the range 12-23 g g-1 for the test liquids light crude oil, engine oil, paraffin oil, chloroform, kerosene, and hexane is revealed. Absorption capacity by a weight basis was directly proportional to the density and inversely proportional to the viscosity of test liquids. Trials under both stagnant and turbulent conditions verify selective uptake of oil from sea water. Complete regeneration of the absorbent was possible for ten cycles for the test liquids. The work provides design of an affordable water clean-up material alternative to commonly used polyurethane sponges.
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Affiliation(s)
- Nadukkandy Minju
- Functional Materials, Material Science and Technology
Division and Computational
Modeling and Simulation Section, Environmental Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology, Government of
India, Thiruvananthapuram, Kerala 695 019, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Solaiappan Ananthakumar
- Functional Materials, Material Science and Technology
Division and Computational
Modeling and Simulation Section, Environmental Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology, Government of
India, Thiruvananthapuram, Kerala 695 019, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sivaraman Savithri
- Functional Materials, Material Science and Technology
Division and Computational
Modeling and Simulation Section, Environmental Technology Division, CSIR-National Institute for Interdisciplinary Science
and Technology, Government of
India, Thiruvananthapuram, Kerala 695 019, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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