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Sylenko PM, Pokropivny AV, Andrushchenko DI, Solonin Y. Formation of Silicon Carbide Nanoclusters in the Process of Methyltrichlorosilane Oligomerization. THEOR EXP CHEM+ 2023. [DOI: 10.1007/s11237-023-09749-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Kumar A, Sidharth S, Kandasubramanian B. A review on algal biosorbents for heavy metal remediation with different adsorption isotherm models. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:39474-39493. [PMID: 36780087 DOI: 10.1007/s11356-023-25710-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/31/2023] [Indexed: 02/14/2023]
Abstract
Biosorbent composites like chitin, alginate, moss, xanthene, and cotton can be derived from biotic species such as plants, algae, fungi, and bacteria which can be used for the exclusion of both organic and inorganic toxicants from sewage, industrial effluent, polluted soils, and many more. The use of composites in place of raw substrates like alginate and chitin increases the adsorption capacity as CS4CPL1 beads increase the adsorption capacity for copper and nickel from 66.7 mg/g and 15.3 mg/g in the case of alginate microsphere to 719.38 mg/g and 466.07 mg/g respectively. Biosorbent fabricated from algae Chlorella vulgaris having surface area of 12.1 m2/g and pore size of 13.7 nm owing to which it displayed a higher adsorption capacity for Pb 0.433 mmol/g indicating their potential as an efficient biosorbent material. This article contains detailed information related to heavy metals as well as biosorbent that includes different isotherms, kinetics, techniques to estimate heavy metal concentration, removal methods, and adverse health effects caused due to heavy metal pollution. Apart from the above recovery and reuse of biosorbent, correlation with the sustainable development goals has also been included.
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Affiliation(s)
- Alok Kumar
- Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune, 411025, Maharashtra, India
| | - Sumati Sidharth
- Technology Management, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune, 411025, Maharashtra, India
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune, 411025, Maharashtra, India.
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Subash A, Naebe M, Wang X, Kandasubramanian B. Biopolymer - A sustainable and efficacious material system for effluent removal. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130168. [PMID: 36302289 DOI: 10.1016/j.jhazmat.2022.130168] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/03/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Undesired discharge of various effluents directly into the aquatic ecosystem can adversely affect water quality, endangering aquatic and terrestrial flora and fauna. Therefore, the conceptual design and fabrication of a sustainable system for alleviating the harmful toxins that are discharged into the atmosphere and water bodies using a green sustainable approach is a fundamental standpoint. Adsorptive removal of toxins (∼99% removal efficacy) is one of the most attractive and facile approaches for cleaner technologies that remediate the environmental impacts and provide a safe operating space. Recently, the introduction of biopolymers for the adsorptive abstraction of toxins from water has received considerable attention due to their eclectic accessibility, biodegradability, biocompatibility, non-toxicity, and enhanced removal efficacy (∼ 80-90% for electrospun fibers). This review summarizes the recent literature on the biosorption of various toxins by biopolymers and the possible interaction between the adsorbent and adsorbate, providing an in-depth perspective of the adsorption mechanism. Most of the observed results are explained in terms of (1) biopolymers classification and application, (2) toxicity of various effluents, (3) biopolymers in wastewater treatment and their removal mechanism, and (4) regeneration, reuse, and biodegradation of the adsorbent biopolymer.
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Affiliation(s)
- Alsha Subash
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong, Victoria 3216, Australia; Nano Surface Texturing, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
| | - Minoo Naebe
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong, Victoria 3216, Australia
| | - Xungai Wang
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India.
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Jaya Prakash N, Wang X, Kandasubramanian B. Regenerated silk fibroin loaded with natural additives: a sustainable approach towards health care. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023:1-38. [PMID: 36648394 DOI: 10.1080/09205063.2023.2170137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
According to World Health Organization (WHO), on average, 0.5 Kg of hazardous waste is generated per bed every day in high-income countries. The adverse effects imposed by synthetic materials and chemicals on the environment and humankind have urged researchers to explore greener technologies and materials. Amidst of all the natural fibers, silk fibroin (SF), by virtue of its superior toughness (6 × 104∼16 × 104 J/kg), tensile strength (47.2-67.7 MPa), tunable biodegradability, excellent Young's modulus (1.9-3.9 GPa), presence of functional groups, ease of processing, and biocompatibility has garnered an enormous amount of scientific interests. The use of silk fibroin conjoint with purely natural materials can be an excellent solution for the adverse effects of chemical-based treatment techniques. Considering this noteworthiness, vigorous research is going on in silk-based biomaterials, and it is opening up new vistas of opportunities. This review enswathes the structural aspects of silk fibroin along with its potency to form composites with other natural materials, such as curcumin, keratin, alginate, hydroxyapatite, hyaluronic acid, and cellulose, that can replace the conventionally used synthetic materials, providing a sustainable pathway to biomedical engineering. It was observed that a large amount of polar functional moieties present on the silk fibroin surface enables them to compatibilize easily with the natural additives. The conjunction of silk with natural additives initiates synergistic interactions that mitigate the limitations offered by individual units as well as enhance the applicability of materials. Further the current status and challenges in the commercialization of silk-based biomedical devices are discussed.
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Affiliation(s)
- Niranjana Jaya Prakash
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Structural Composites Laboratory, Girinagar, Pune, Maharashtra, India
| | - Xungai Wang
- Fiber Science and Technology, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Balasubramanian Kandasubramanian
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Structural Composites Laboratory, Girinagar, Pune, Maharashtra, India
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Purabgola A, Mayilswamy N, Kandasubramanian B. Graphene-based TiO 2 composites for photocatalysis & environmental remediation: synthesis and progress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:32305-32325. [PMID: 35137316 DOI: 10.1007/s11356-022-18983-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Photoactive nanomaterials constitute an emerging field in nanotechnology, finding an extensive array of applications spanning diverse areas, including electronics and photovoltaic devices, solar fuel cells, wastewater treatment, etc. Titanium dioxide (TiO2), in its thin-film form, has been exhaustively surveyed as potential photocatalysts for environmental remediation owing to its innocuousness, stability, and photocatalytic characteristics when subjected to ultraviolet (UV) irradiation. However, TiO2 has some shortcomings associated with a large bandgap value of around 3.2 eV, making it less efficient in the visible spectral range. TiO2 is often consolidated with various carbon nanomaterials to overcome this limitation and enhance its efficiency. Graphene, a 2-dimensional allotrope of carbon with a bandgap tuned between 0 and 0.25 eV, exhibits unique properties, making it an attractive candidate to augment the photoactivity of semiconductor (SC) oxides. Encapsulating graphene oxide onto TiO2 nanospheres demonstrates intensified photocatalytic properties and exceptional recyclability for the degeneration of certain dyes, including Rhodamine B. This review encompasses various techniques to synthesize graphene-based TiO2 photoactive composites, emphasizing graphene capsulized hollow titania nanospheres, nanofibers, core/shell, and reduced graphene oxide-TiO2-based nanocomposites. It also consolidates the application of the aforestated nanocomposites for the disintegration of various synthetic dyes, proving efficacious for water decontamination and degradation of chemicals and pharmaceuticals. Furthermore, graphene-based TiO2 nanocomposites used as lithium (Li)-ion batteries manifesting substantial electrochemical performance and solar fuel cells for energy production are discussed here.
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Affiliation(s)
- Anushka Purabgola
- Centre for Converging Technologies, University of Rajasthan, Jaipur, 302004, Rajasthan, India
| | - Neelaambhigai Mayilswamy
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune, 411025, Maharashtra, India
| | - Balasubramanian Kandasubramanian
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune, 411025, Maharashtra, India.
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Chaudhary K, Kandasubramanian B. Self-Healing Nanofibers for Engineering Applications. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04602] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kritika Chaudhary
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Deemed University (DU), Pune, 411025, India
| | - Balasubramanian Kandasubramanian
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Deemed University (DU), Pune, 411025, India
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Gore PM, Naebe M, Wang X, Kandasubramanian B. Nano-fluoro dispersion functionalized superhydrophobic degummed & waste silk fabric for sustained recovery of petroleum oils & organic solvents from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2022; 426:127822. [PMID: 34823952 DOI: 10.1016/j.jhazmat.2021.127822] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 11/11/2021] [Accepted: 11/14/2021] [Indexed: 06/13/2023]
Abstract
Superwettable and chemically stable waste silk fabric and degummed silk were used in this study for treatment of oily wastewater and oil/solvent recovery. Silk functionalized with a nano-fluoro dispersion showed a superhydrophobic and oleophilic nature. The functionalized silk demonstrated superoleophilicity towards petroleum oils and organic solvents, and exhibited filtration efficiencies of more than 95%, and up to 70% till 25 re-usable cycles. Furthermore, the functionalized silk materials demonstrated high permeation flux of 584 L.m-2.h-1 (for Diesel) for continuous oil-water separation operation. The pH based study in highly acidic and alkaline mediums (pH from 1 to 13) showed excellent stability of nano-fluoro coated silk. Thermogravimetric analysis showed thermal stability up to 250 °C, and 400 °C, for functionalized waste silk, and degummed silk, respectively. FE-SEM analysis revealed randomly oriented spindle shaped nano particles anchored on the silk surface exhibiting hierarchical patterns, as required for the superhydrophobic Cassie-Baxter state. The rate absorption study showed close curve fitting for pseudo second order kinetics (R2 = 0.999), which indicated physical absorption process. BET analysis confirmed the porous nature, while the elemental XPS and EDX analysis confirmed strong bonding and uniform coating of fluoro nanoparticles on silk surface. The results demonstrated that nano-fluoro dispersion functionalized silk can be successfully employed for effective oil/solvent-water filtration, oil/solvent-spill cleanups, and treatment of oily wastewater for protection of water resources.
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Affiliation(s)
- Prakash M Gore
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong 3220, Victoria, Australia; Nano Surface Texturing Lab, Department of Metallurgical & Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune 411025, India
| | - Minoo Naebe
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong 3220, Victoria, Australia
| | - Xungai Wang
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong 3220, Victoria, Australia
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing Lab, Department of Metallurgical & Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune 411025, India.
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The effect of pigment volume concentration on self-stratification and physico-mechanical properties of solvent-free silicone/epoxy coating systems. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04138-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sonatkar J, Kandasubramanian B, Oluwarotimi Ismail S. 4D printing: Pragmatic progression in biofabrication. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111128] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Patil NA, Gore PM, Jaya Prakash N, Govindaraj P, Yadav R, Verma V, Shanmugarajan D, Patil S, Kore A, Kandasubramanian B. Needleless electrospun phytochemicals encapsulated nanofibre based 3-ply biodegradable mask for combating COVID-19 pandemic. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 416:129152. [PMID: 33654455 PMCID: PMC7907737 DOI: 10.1016/j.cej.2021.129152] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/11/2021] [Accepted: 02/22/2021] [Indexed: 05/09/2023]
Abstract
The emergence of COVID-19 pandemic has severely affected human health and world economies. According to WHO guidelines, continuous use of face mask is mandatory for personal protection for restricting the spread of bacteria and virus. Here, we report a 3-ply cotton-PLA-cotton layered biodegradable face-mask containing encapsulated phytochemicals in the inner-filtration layer. The nano-fibrous PLA filtration layer was fabricated using needleless electrospinning of PLA & phytochemical-based herbal-extracts. This 3-layred face mask exhibits enhanced air permeability with a differential pressure of 35.78 Pa/cm2 and superior bacterial filtration efficiency of 97.9% compared to conventional face masks. Close-packed mesh structure of the nano-fibrous mat results in effective adsorption of particulate matter, aerosol particles, and bacterial targets deep inside the filtration layer. The outer hydrophobic layer of mask exhibited effective blood splash resistance up to a distance of 30 cm, ensuring its utilization for medical practices. Computational analysis of constituent phytochemicals using the LibDock algorithm predicted inhibitory activity of chemicals against the protein structured bacterial sites. The computational analysis projected superior performance of phytochemicals considering the presence of stearic acid, oleic acid, linoleic acid, and Arachidic acid exhibiting structural complementarity to inhibit targeted bacterial interface. Natural cotton fibers and PLA bio-polymer demonstrated promising biodegradable characteristics in the presence of in-house cow-dung based biodegradation slurry. Addition of jaggery to the slurry elevated the biodegradation performance, resulting in increment of change of weight from 07% to 12%. The improved performance was attributed to the increased sucrose content in biodegradation slurry, elevating the bacterial growth in the slurry. An innovative face mask has shown promising results for utilization in day-to-day life and medical frontline workers, considering the post-pandemic environmental impacts.
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Affiliation(s)
- Nikhil Avinash Patil
- Nanofibre & Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
| | - Prakash Macchindra Gore
- Nanofibre & Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong 3216, Victoria, Australia
| | - Niranjana Jaya Prakash
- Nanofibre & Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
| | - Premika Govindaraj
- Materials Science and Engineering at the Factory of Future - Swinburne University of Technology, Hawthorn 3122, Victoria, Australia
| | - Ramdayal Yadav
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong 3216, Victoria, Australia
| | - Vivek Verma
- Synthesis and Solid State Pharmaceutical Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, V94T9PX Limerick, Ireland
| | - Dhivya Shanmugarajan
- Department of Life Sciences, Altem Technologies, Platinum Partner of Dassault Systemes, Bangalore 560095, Karnataka, India
| | - Shivanand Patil
- Siddheshwar Techtessile Pvt. Ltd., Kolhapur 416012, Maharashtra, India
| | - Abhay Kore
- Siddheshwar Techtessile Pvt. Ltd., Kolhapur 416012, Maharashtra, India
| | - Balasubramanian Kandasubramanian
- Nanofibre & Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
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Issac MN, Kandasubramanian B. Effect of microplastics in water and aquatic systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:19544-19562. [PMID: 33655475 PMCID: PMC7924819 DOI: 10.1007/s11356-021-13184-2] [Citation(s) in RCA: 186] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 02/22/2021] [Indexed: 05/21/2023]
Abstract
Surging dismissal of plastics into water resources results in the splintered debris generating microscopic particles called microplastics. The reduced size of microplastic makes it easier for intake by aquatic organisms resulting in amassing of noxious wastes, thereby disturbing their physiological functions. Microplastics are abundantly available and exhibit high propensity for interrelating with the ecosystem thereby disrupting the biogenic flora and fauna. About 71% of the earth surface is occupied by oceans, which holds 97% of the earth's water. The remaining 3% is present as water in ponds, streams, glaciers, ice caps, and as water vapor in the atmosphere. Microplastics can accumulate harmful pollutants from the surroundings thereby acting as transport vectors; and simultaneously can leach out chemicals (additives). Plastics in marine undergo splintering and shriveling to form micro/nanoparticles owing to the mechanical and photochemical processes accelerated by waves and sunlight, respectively. Microplastics differ in color and density, considering the type of polymers, and are generally classified according to their origins, i.e., primary and secondary. About 54.5% of microplastics floating in the ocean are polyethylene, and 16.5% are polypropylene, and the rest includes polyvinyl chloride, polystyrene, polyester, and polyamides. Polyethylene and polypropylene due to its lower density in comparison with marine water floats and affect the oceanic surfaces while materials having higher density sink affecting seafloor. The effects of plastic debris in the water and aquatic systems from various literature and on how COVID-19 has become a reason for microplastic pollution are reviewed in this paper.
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Affiliation(s)
- Merlin N Issac
- CIPET: Institute of Plastics Technology (IPT), HIL Colony, Edayar Road, Pathalam, Eloor, Udyogamandal P.O., Kochi, Kerala, 683501, India
| | - Balasubramanian Kandasubramanian
- Nano-Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune, Maharashtra, 411025, India.
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Udayakumar KV, Gore PM, Kandasubramanian B. Foamed materials for oil-water separation. CHEMICAL ENGINEERING JOURNAL ADVANCES 2021. [DOI: 10.1016/j.ceja.2020.100076] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Mohamed ME, Abd-El-Nabey BA. Fabrication of durable superhydrophobic/oleophilic cotton fabric for highly efficient oil/water separation. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:90-99. [PMID: 33460409 DOI: 10.2166/wst.2020.562] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In the present work, dopamine is self-polymerized on cotton fabric by a simple deep-coating method and followed by modification with an ethanolic solution of palmitic acid: a superhydrophobic/oleophilic cotton fabric was obtained. The as-prepared cotton fabric exhibits a superhydrophobic character with a water contact angle of 157o. The absorption capacity of as-prepared superhydrophobic/oleophilic cotton fabric in n-hexane, petroleum ether, and silicone oil was determined. The results show that silicone oil has the highest absorption capacity while n-hexane has the lowest value. The absorption capacity is nearly constant even after ten cycles, indicating the efficient recyclability of the as-prepared superhydrophobic/oleophilic cotton fabric for oil separation. The as-prepared superhydrophobic/oleophilic cotton fabric shows excellent separation efficiency, high flux rate, and excellent chemical and mechanical stability.
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Affiliation(s)
- M E Mohamed
- Faculty of Science, Chemistry Department, Alexandria University, P.O. Box 426, Alexandria 21321, Egypt E-mail:
| | - B A Abd-El-Nabey
- Faculty of Science, Chemistry Department, Alexandria University, P.O. Box 426, Alexandria 21321, Egypt E-mail:
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Gore PM, Gawali P, Naebe M, Wang X, Kandasubramanian B. Polycarbonate and activated charcoal-engineered electrospun nanofibers for selective recovery of oil/solvent from oily wastewater. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03609-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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15
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Issac MN, Kandasubramanian B. Review of manufacturing three-dimensional-printed membranes for water treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:36091-36108. [PMID: 32627102 DOI: 10.1007/s11356-020-09452-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Abstract
With the exacerbation of industrialization, water treatment has become a necessary step for the eradication of dyes, heavy metals, oils, pharmaceuticals, and illicit drugs. These pollutants pose an impending threat to the health of humans by causing chronic or acute poisoning. Albeit they are noxious, the presence of some metals in lower concentrations is indispensable for human health. 3D printing (additive manufacturing) (3DP) can contrive nearly any complicated geometric form in a wide array of objects among various scales by a layer-wise method of manufacturing, which is more indubitably designed than any other conventional method. 3DP could remodel the existing patterns of membrane housing and possibly trim down the power demand and chemical use in saltwater desalinating and wastewater purification plants. Membranes that are 3D printed with correctly arranged apertures and shapes enhance material transport and flow athwart the surface of the membrane and at once lessen membrane soiling. This kind of technology forges membranes of polymers, biopolymers, alloys, metals, and ceramics via computer-aided design (CAD). A polylactic acid porous super-hydrophobic membrane with pore size in the range 40-600 μm showed 99.4% oil-water separating power and 60 kL h-1 m-2 flux when the pore size was tuned to 250 μm via CAD-aided 3D printing technology. This review focuses on the ability of 3D-printed membranes for the efficient removal of toxic pollutants from wastewater. Graphical abstract 3D-printed membranes for water treatment.
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Affiliation(s)
- Merlin N Issac
- CIPET: Institute of Plastics Technology (IPT), HIL Colony, Edayar Road, Pathalam, Eloor, Udyogamandal P.O, Kochi, Kerala, 683501, India
| | - Balasubramanian Kandasubramanian
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Girinagar, Pune, Maharashtra, 411025, India.
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Tandon S, Kandasubramanian B, Ibrahim SM. Silk-Based Composite Scaffolds for Tissue Engineering Applications. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02195] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Saloni Tandon
- Biotechnology Lab, Center for Converging Technologies, University of Rajasthan, JLN Marg, Jaipur-302004, Rajasthan, India
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing Lab, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Girinagar, Pune-411025, Maharashtra, India
| | - Sobhy M. Ibrahim
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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Electrospun nanofiber-based cancer sensors: A review. Int J Pharm 2020; 583:119364. [DOI: 10.1016/j.ijpharm.2020.119364] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 12/27/2022]
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19
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20
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Gore PM, Naebe M, Wang X, Kandasubramanian B. Silk fibres exhibiting biodegradability & superhydrophobicity for recovery of petroleum oils from oily wastewater. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121823. [PMID: 31859169 DOI: 10.1016/j.jhazmat.2019.121823] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/21/2019] [Accepted: 12/03/2019] [Indexed: 05/06/2023]
Abstract
Present study reports superhydrophobic-oleophilic, environment-friendly, & biodegradable silk material derived from Bombyx mori silkworm, for practical oil-water separation and oil recovery applications. In this study, raw silk fibers were degummed using water and Na2CO3 (at 100 °C), for removal of outer gummy sericin protein layer, which was confirmed using FTIR & FE-SEM analysis. The water & Na2CO3 degummed silk fibers showed superhydrophobicity with water contact angles (WCA) of 153° & 158°, respectively, demonstrating Wenzel & Cassi-Baxter states. Degummed silk fibers showed superoleophilicity (OCA∼0°) towards petroleum oils like Petrol, Diesel, & Engine oil. The water & Na2CO3 degummed silk fibers showed oil-water separation efficiencies of 95 % & 87.5 %, respectively. Both degummed silk fibers showed more than 50 % efficiency till 10 separation cycles. Further, raw & degummed silk fibers showed an environmental biocompatibility, by their biodegradation under in-house developed biotic de-compost culture consisting of biodegrading micro-organisms. Their analysis showed that biotic de-compost culture rendered biodegradation weight loss of 11 % and 18 %, respectively, in 35 days. Successive results showed that, degummed silk fibers can be effectively utilized for practical oil-water separation, and further, they can be environmentally biodegraded, thereby mitigating their waste generation and disposal problem.
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Affiliation(s)
- Prakash M Gore
- Institute for Frontier Materials, Deakin University, Warun Ponds Campus, Geelong 3220, Victoria, Australia; Nano Surface Texturing Lab, Department of Metallurgical & Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune 411025, India
| | - Minoo Naebe
- Institute for Frontier Materials, Deakin University, Warun Ponds Campus, Geelong 3220, Victoria, Australia
| | - Xungai Wang
- Institute for Frontier Materials, Deakin University, Warun Ponds Campus, Geelong 3220, Victoria, Australia
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing Lab, Department of Metallurgical & Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Girinagar, Pune 411025, India.
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Poly(1,6-heptadiyne)/ABS functionalized microfibers for hydrophobic applications. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1981-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Thakur K, Rajhans A, Kandasubramanian B. Starch/PVA hydrogels for oil/water separation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:32013-32028. [PMID: 31493081 DOI: 10.1007/s11356-019-06327-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 08/26/2019] [Indexed: 05/06/2023]
Abstract
PVA polymers have been well-known as water-absorbing materials but their brittle nature hinders their applicability. In this study, we enhanced the strength of hydrogel and its water-absorbing capabilities by glutaraldehyde-assisted crosslinking of starch with PVA and blending BMIM-BF4 to enhance the plasticity and generate porosity within the hydrogel multiplying the swelling capacity up to 300% and understand the kinetics and mechanism of water absorption based on the structure of the hydrogel. The ability of starch/PVA hydrogel to selectively adsorb water from oil-water emulsions was determined by establishing the underwater oleophobic nature (oil contact angle ~ 153.6°), subjecting the hydrogel to oil-water emulsion to determine the water absorbed. The hydrogels' biodegradable nature was tested by an efficient in-house biotic system and mechanisms for biodegradation have been discussed. The biodegradability (~ 90%) was determined for 50% starch in PVA sample in 28 days. These properties observed in the hydrogels will find applications in irrigating arid and semi-arid areas and also in developing superabsorbent hydrogels for hygiene-related product development etc. which can be biodegraded in an economic way. Graphical abstract.
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Affiliation(s)
- Kirti Thakur
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Aditya Rajhans
- Department of Chemical Engineering, National Institute of Technology, Rourkela, India
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing Lab, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune, India.
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Zahid M, Mazzon G, Athanassiou A, Bayer IS. Environmentally benign non-wettable textile treatments: A review of recent state-of-the-art. Adv Colloid Interface Sci 2019; 270:216-250. [PMID: 31277037 DOI: 10.1016/j.cis.2019.06.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/28/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
Among superhydrophobic materials, non-wettable textiles are probably the ones that come in contact or interact with the human body most frequently. Hence, textile treatments for water or oil repellency should be non-toxic, biocompatible, and comply with stringent health standards. Moreover, considering the volume of the worldwide textile industry, these treatments should be scalable, sustainable, and eco-friendly. Due to this awareness, more and more non-wettable textile treatments with eco-friendly processes and green or non-toxic chemicals are being adopted and reported. Although fluorinated alkylsilanes or fluorinated polymers with C8 chemistry (with ≥ 8 fluorinated carbon atoms) are the best performing materials to render textiles water or oil repellent, they pose substantial health and environmental problems and are being banned. For this reason, water/solvent-borne, C8-free vehicles for non-wettable treatment formulations are probably the only ones that can have commercialization prospects. Hence, researchers have come up with a variety of new, non-toxic, green formulations and materials to render fabrics liquid repellent that constitute the focus of this review paper. As such, this review article discusses and summarizes recent developments and techniques on various sustainable superhydrophobic treatments for textiles, with comparable performance and durability to formulations based on fluorinated C8 compounds. The current state-of-the-art technologies, potential commercialization prospects, and relevant limitations are discussed and summarized with examples. The review also attempts to indicate promising future strategies and new materials that can transform the process for non-wettable textiles into an all-sustainable technology.
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Affiliation(s)
- Muhammad Zahid
- Smart Materials, Istituto Italiano di Technologia, Via Morego, 30, 16163 Genova, Italy.
| | - Giulia Mazzon
- Smart Materials, Istituto Italiano di Technologia, Via Morego, 30, 16163 Genova, Italy; Dipartimento di Scienze Ambientali, Informatica e Statistica (DAIS), Università Ca' Foscari, Dorsoduro 3246, 30123 Venezia, Italy
| | | | - Ilker S Bayer
- Smart Materials, Istituto Italiano di Technologia, Via Morego, 30, 16163 Genova, Italy.
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Korde JM, Kandasubramanian B. Fundamentals and Effects of Biomimicking Stimuli-Responsive Polymers for Engineering Functions. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00683] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jay M. Korde
- Biocomposite Laboratory, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune-411025, India
| | - Balasubramanian Kandasubramanian
- Biocomposite Laboratory, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune-411025, India
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Nanotechnology for Oil-Water Separation. ADVANCED RESEARCH IN NANOSCIENCES FOR WATER TECHNOLOGY 2019. [DOI: 10.1007/978-3-030-02381-2_14] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Gore PM, Kandasubramanian B. Functionalized Aramid Fibers and Composites for Protective Applications: A Review. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04903] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Prakash M. Gore
- Structural Composite Fabrication Laboratory, Department of Metallurgical & Materials Engineering, Defence Institute of Advanced Technology (DU), Pune-411025, India
| | - Balasubramanian Kandasubramanian
- Structural Composite Fabrication Laboratory, Department of Metallurgical & Materials Engineering, Defence Institute of Advanced Technology (DU), Pune-411025, India
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Balzamo G, Willcock H, Ali J, Ratcliffe E, Mele E. Bioinspired Poly(vinylidene fluoride) Membranes with Directional Release of Therapeutic Essential Oils. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8652-8660. [PMID: 29957953 DOI: 10.1021/acs.langmuir.8b01175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Here, the morphology of polypore fungi has inspired the fabrication of poly(vinylidene fluoride) (PVDF) membranes with dual porosity by nonsolvent-induced phase separation (NIPS). The fruiting body of such microorganisms is constituted of two distinct regions, finger- and sponge-like structures, which have been successfully mimicked by controlling the coagulation bath temperature during the NIPS process. The use of water at 10 °C as coagulant resulted in membranes with the highest finger-like/sponge-like ratio (53% of the total membrane thickness), while water at 90 °C allowed the formation of macrovoid-free membranes. The microchannels and the asymmetric porosity were used to enhance the oil sorption capacity of the PVDF membranes and to achieve directional release of therapeutic essential oils. These PVDF membranes with easily tuned asymmetric channel-like porosity and controlled pore size are ideal candidates for drug delivery applications.
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Saini S, Kandasubramanian B. Engineered Smart Textiles and Janus Microparticles for Diverse Functional Industrial Applications. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1466177] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shubham Saini
- Dr. B.R Ambedkar National Institute of Technology, Jalandhar, India
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Wang J, Wang H. Robust and durable superhydrophobic fabrics fabricated via simple Cu nanoparticles deposition route and its application in oil/water separation. MARINE POLLUTION BULLETIN 2017; 119:64-71. [PMID: 28341295 DOI: 10.1016/j.marpolbul.2017.03.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 03/14/2017] [Indexed: 06/06/2023]
Abstract
The exploitation of separation materials with high selectivity for oil pollutants is of great importance due to severe environmental damage from oil spillages and industrial discharge of oils. A facile in situ growth process for creating superhydrophobic-superoleophilic fabrics for oil-water separation is developed. This proposed method is based mainly on the deposition Cu nanoparticles and subsequent hydrophobic modification. Compared with the hydrophilicity of original fabric, the water contact angle of the modified fabric rises to 154.5°, suggesting its superhydrophobicity. The as-prepared fabrics also exhibit wonderful oil-water selectivity, excellent recyclability, and high separation efficiency (>94.5%). Especially, via pumping the fabric rolled into a multilayered tube, various types of oils on water surface can be continuously separated in situ without any water uptake. Furthermore, the superhydrophobic fabrics show excellent superhydrophobic stability, and can resist different chemicals, such as salty, acidic, and alkaline solutions, oils, and hot water. After the abrasion of 400cycles, the broken fabric still possesses highly hydrophobicity with water contact angle of 145°. Therefore, due to simple fabrication steps, low cost, and scalable process, the as-prepared fabrics can be applied in the separation of oils and other organic solvents from water.
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Affiliation(s)
- Jintao Wang
- College of Materials Science and Engineering, Beifang University of Nationalities, Yinchuan 750021, P.R. China.
| | - Hongfei Wang
- Suzhou Wuwei Environmental Technology Co., Ltd., Suzhou 215100, P.R. China
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Gupta P, Kandasubramanian B. Directional Fluid Gating by Janus Membranes with Heterogeneous Wetting Properties for Selective Oil-Water Separation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:19102-19113. [PMID: 28525273 DOI: 10.1021/acsami.7b03313] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The rising oil seepage accidents evolved into a global issue necessitating immediate counter measure to abridge its catastrophic repercussions on sensitive marine ecosystem urging innovative techniques for effective oil/water separation. Here, we report surface tailored wettability modified superhydrophobic/superoleophilic Janus membrane by impregnating nonionic surfactant stabilized nanosized polytetrafluoroethylene (PTFE) dispersion polymerized via nonfluorinated processing aid onto cotton substrate using the Meyer rod-coating technique, exhibiting excellent separation efficiency up to 98% with various petroleum products and retaining its intrinsic properties for at least 30 recurrences. Morphological analysis revealed the generation of closely spaced irregularly patterned nanospindles on the microfibral cotton surface devising hierarchical dual-scale surface architecture, followed by superhydrophobicization (WCA 168° ± 3°) and low ice-adhesion, illustrating deviation from conventional Wenzel and Cassie-Baxter wetting theories. The developed membrane exhibited flame retardancy, anti-icing characteristic, and retained its superhydrophobic/superoleophilic characteristic of Janus membrane in hyper-saline solution, UV-irradiation of wavelenghth 254 nm, high temperature of 150 °C, and subzero temperature of -20 °C. Furthermore, we hypothesized the developed membranes as a directional fluid diode, allowing lower surface tension liquids (oil) to permeate while barring higher surface tension liquids (water) from penetrating, and the breakthrough pressure of 0.65 kPa for water permeation was also mathematically calculated. This study systematically exemplifies the reported fabric as a potentially competent alternative for cleaning massive marine oil seepages.
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Affiliation(s)
- Prashant Gupta
- Nano Surface Texturing Lab, Department of Materials Engineering, DIAT(DU), Ministry of Defence , Girinagar, Pune-411025, India
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