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Miao Y, Liang Y, Wang E, Dai C, Ren C, Cao Y, Zou LH, Zhang W, Huang J. Magnetic superhydrophobic cellulose nanofibril based aerogel with rope-ladder like structure incorporating both superelasticity and excellent oil absorption. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 358:120909. [PMID: 38642487 DOI: 10.1016/j.jenvman.2024.120909] [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: 12/21/2023] [Revised: 04/04/2024] [Accepted: 04/12/2024] [Indexed: 04/22/2024]
Abstract
Achieving an equilibrium between exceptional oil absorption and remarkable elasticity has emerged as a formidable challenge for magnetic porous materials designed for oil absorption. Here, we propose an original, magnetic and superhydrophobic cellulose nanofibril (CNF) based aerogel system with a rope-ladder like skeleton by to greatly improve the issue. Within this system, CNF as the skeleton was combined with multiwalled carbon nanotubes (MWCNT)@Fe3O4 as the magnetic and enhanced component, both methyltrimethoxysilane (MTMS) and acetonitrile-extracted lignin (AEL) as the soft-hard associating constituents. The resultant CNF based aerogel shows a rope-ladder like pore structure to contribute to high elasticity and excellent oil absorption (28.34-61.09 g/g for various oils and organic solvents) under the synergistic effect of Fe3O4@MWCNT, AEL and MTMS, as well as good specific surface area (27.97 m2/g), low density (26.4 mg/cm3). Notably, despite the introduced considerable proportion (0.5 times of mass-CNF) of Fe3O4@MWCNT, the aerogel retained an impressive compression-decompression rate (88%) and the oil absorption efficiency of above 87% for various oils due to the soft-hard associating structure supported by both MTMS and AEL. This study provides a prospective strategy to balance between high elasticity and excellent oil absorption of CNF based aerogel doping inorganic particles.
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Affiliation(s)
- Yu Miao
- Bamboo Industry Institude, Zhejiang A&F University, Hangzhou, 311300, China
| | - Yipeng Liang
- Bamboo Industry Institude, Zhejiang A&F University, Hangzhou, 311300, China
| | - Enfu Wang
- Bamboo Industry Institude, Zhejiang A&F University, Hangzhou, 311300, China
| | - Chunping Dai
- Faculty of Forestry, University of British Columbia, Vancouver, V6T 1Z4, Canada
| | - Changying Ren
- Bamboo Industry Institude, Zhejiang A&F University, Hangzhou, 311300, China
| | - Yizhong Cao
- Bamboo Industry Institude, Zhejiang A&F University, Hangzhou, 311300, China
| | - Long-Hai Zou
- Bamboo Industry Institude, Zhejiang A&F University, Hangzhou, 311300, China.
| | - Wenbiao Zhang
- Bamboo Industry Institude, Zhejiang A&F University, Hangzhou, 311300, China
| | - Jingda Huang
- Bamboo Industry Institude, Zhejiang A&F University, Hangzhou, 311300, China; College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, China.
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2
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Wang B, Xu S, Li W, Liu Y, Li Z, Ma L, Xu X, Chen D. Polyaniline-coated kapok fibers for convenient in-syringe solid-phase microextraction and determination of organochlorine and pyrethroid pesticide residues in aqueous samples. Talanta 2024; 271:125706. [PMID: 38280266 DOI: 10.1016/j.talanta.2024.125706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 01/09/2024] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
Pesticides used in agriculture have low polarity and a tendency to accumulate in fatty tissues, posing potential risks to human health. Effective pre-treatment is crucial due to complex sample matrices and low concentrations of pesticide residues typically encountered in instrument analysis. In this study, polyaniline-coated kapok fiber (PANI-KF) was synthesized successfully using in-situ oxidative polymerization for use as sorbents in in-syringe SPME of pyrethroid pesticides (PYRs) and organochlorine pesticides (OCPs) from aqueous samples. Coating the natural KF with PANI maintained the hollow microtubular structure and fiber morphology while significantly enhancing the extraction efficiency. The extraction process was easily conducted by simply pulling and pushing the syringe plunger. The entire extraction process, utilizing 3 mg of PANI-KF, could be completed in approximately 3 min. Density functional theory results indicated that the adsorption mechanism of PANI-KF towards OCPs and PYRs mainly involved van der Waals interactions, π-π interactions, and weak hydrogen bonding interactions. With the coupling of gas chromatography-mass spectrometry, a quantification method was established that exhibited good linearities (R2 > 0.990), and relative recoveries (87.2-108.5 %). The limits of detection ranged from 0.4 to 2.0 ng mL-1 and the matrix effects were negligible (-12.3-16.4 %). The validated in-syringe SPME-GC-MS method was successfully applied to determine pesticide residues in fruit juices, oral liquids and herbal extract granules with satisfactory accuracy and precision. PANI-KF exhibits remarkable promise as a sorbent for the extraction and enrichment of pesticide residues in aqueous samples, thereby contributing to the advancement of pesticide residue determination methodologies.
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Affiliation(s)
- Bin Wang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Zhengzhou, 450001, China
| | - ShuangJiao Xu
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Wenxuan Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Zhengzhou, 450001, China
| | - Yuwei Liu
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Zhengzhou, 450001, China
| | - Zhanwu Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Department of Pharmacy, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Lei Ma
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Xia Xu
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Zhengzhou, 450001, China.
| | - Di Chen
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Zhengzhou, 450001, China.
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Li D, Liu J, Liu Q, Yu J, Zhu J, Chen R, Lin Z, Wang J. Comparison of Anti-Icing, Antifouling, and Anticorrosion Performances of the Superhydrophobic and Lubricant-Infused Coatings Based on a Hollow-Structured Kapok Fiber. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5420-5432. [PMID: 38423092 DOI: 10.1021/acs.langmuir.3c03942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The superhydrophobic surface and slippery liquid-infused porous surface (SLIPS)/lubricant-infused surface (LIS) have attracted increasing attention owing to their multifunctionality. However, their practical applications face several problems such as complex and inefficient preparation technology, loss of lubricant, and fragile microstructures. Therefore, new strategies for preparing microstructures must be developed for constructing superhydrophobic and lubricant-infused coatings. Herein, a low-cost and high-efficiency method for developing superhydrophobic and lubricant-infused coatings based on in situ grown TiO2 on the surface of a hollow kapok fiber (KF) is reported. The anti-icing, antifouling, and anticorrosion performance of the superhydrophobic and lubricant-infused coatings are compared. The superhydrophobic coating reduces the formation and accumulation of ice. The lubricant-infused coating exhibits an extremely low ice adhesion strength and durable anti-icing properties. The superhydrophobic and lubricant-infused coatings show the outstanding antifouling property of diatom; the superhydrophobic surface exhibits superior stability over LIS without an external force field. The lubricant-infused coating shows excellent corrosion resistance and durability when immersed in a 3.5% NaCl solution. The superhydrophobic coating loses its protection as a result of the corrosion media permeating the metal substrate via the electrolytic cell and coating interface, and the lubricant-infused coating provides lasting corrosion resistance because of the lubricant filling into the interface. Although the superhydrophobic coating is fragile and the lubricant-infused coating will lose lubricant, this simple and convenient approach can be repeated to keep the coatings active. This study provides new inspiration for the fabrication of superhydrophobic surfaces and LIS based on natural products.
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Affiliation(s)
- Dandan Li
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jingyuan Liu
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Qi Liu
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jing Yu
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jiahui Zhu
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Rongrong Chen
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Zaiwen Lin
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jun Wang
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
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Zhang T, Wang X, Dong Y, Li J, Yang XY. Effective separation of water-in-oil emulsions using an under-medium superlyophilic membrane with hierarchical pores. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133305. [PMID: 38141309 DOI: 10.1016/j.jhazmat.2023.133305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/10/2023] [Accepted: 12/15/2023] [Indexed: 12/25/2023]
Abstract
Separating water-in-oil emulsions is important in terms of environmental protection and resource recovery. To address the challenges posed by the water-oil interface, superwetting materials have been designed to accomplish separation through filtration and adsorption. Superhydrophobic membranes prevent the permeation of water droplets owing to extreme repellence and their size-sieving abilities. However, their use in remediating water-contaminated oil is limited by high oil viscosities. Meanwhile, in-air superhydrophilic sorbents are rarely employed for the separation of water-in-oil emulsions due to the thermodynamic and kinetic limitations of water adsorption in oil. Herein, the integration of an under-medium superlyophilic membrane with the hierarchical porous structure of wood is presented for filtration-driven selective adsorption of water from surfactant-stabilized (10 g/L) water-in-oil emulsions. Compared to filtration through a natural wood membrane or direct adsorption using an under-oil superhydrophilic wood membrane, the under-medium superlyophilic wood membrane demonstrated high separation efficiencies of > 99.95% even when applied to the regeneration of high-viscosity lubricating (6.3 mPa s) and edible (50.5 mPa s) oils, exhibiting viscosity-dependent fluxes and excellent stability. Moreover, the cost of purifying 200 mL of lubricating oil using the modified wood membrane was much lower than the oil's market price and required a low energy consumption of ca. 1.72 kWh. ENVIRONMENTAL IMPLICATION: The ever-growing use of petroleum and industrial/domestic oil products has led to excessive (estimated at a million tons per year) output of waste oils. Because direct discharge of waste oils into the environment causes serious pollution problems, separating water-in-oil emulsions is important in terms of environmental protection and resource recovery. Here filtration-driven water adsorption has been demonstrated to be a feasible method for the remediation of water-contaminated waste oils, even those that are highly viscous.
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Affiliation(s)
- Tianyue Zhang
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Peace Avenue, Wuhan 430081, China; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute & Laoshan Laboratory, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; Shenzhen Huazhong University of Science and Technology Research Institute, 9 Yuexing Third Road, Nanshan District, Shenzhen 518000, China
| | - Xuejiao Wang
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Peace Avenue, Wuhan 430081, China
| | - Ying Dong
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, China; Shenzhen Huazhong University of Science and Technology Research Institute, 9 Yuexing Third Road, Nanshan District, Shenzhen 518000, China
| | - Jing Li
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Peace Avenue, Wuhan 430081, China.
| | - Xiao-Yu Yang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute & Laoshan Laboratory, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
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Ma X, Zhou S, Li J, Xie F, Yang H, Wang C, Fahlman BD, Li W. Natural microfibrils/regenerated cellulose-based carbon aerogel for highly efficient oil/water separation. JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131397. [PMID: 37104952 DOI: 10.1016/j.jhazmat.2023.131397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/01/2023] [Accepted: 04/10/2023] [Indexed: 05/19/2023]
Abstract
Cellulose-based carbon aerogels as biodegradable and renewable biomass materials have presented potential applications in oil/water separation. Herein, a novel carbon aerogel composed of natural microfibrils/regenerated cellulose (NM/RCA) was directly prepared by economical hardwood pulp as raw material using a novel co-solvent composed of deep eutectic solvent (DES) and N-methyl morpholine-N-oxide monohydrate (NMMO·H2O). In addition, the morphology and structure of the filiform natural microfibers could be remained after carbonized at 400 ℃, which resulted in a low density (8-10 mg cm-3), high specific surface area (768.89 m2 g-1) and high sorption capability. In addition, the aerogel exhibited high compressibility, outstanding elasticity, excellent fatigue resistance, and recyclability (80.5% height recovery after repeating 100 cycles at the strain of 80%). Due to the morphology and composition of the carbonized microfiber surface, the superhydrophobic materials with a water contact angle of 151.5°, could sorb various oils and organic solvents with 65-133 times its own weight and maintain 91.9% sorption capacity after 25 cycles. In addition, the aerogels could achieve the continuous separation of carbon tetrachloride (CCl4) from water with a high flux rate of 11,718.8 L m-2 h-1. Therefore, our prepared NM/RCA aerogels are anticipated to have broad potential applications in oil purification and contaminant remediation.
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Affiliation(s)
- Xiang Ma
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Shuang Zhou
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Junting Li
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Fei Xie
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Hui Yang
- Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310012, PR China
| | - Cheng Wang
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Bradley D Fahlman
- Department of Chemistry & Biochemistry, Central Michigan University, Mt. Pleasant, MI 48859, USA
| | - Wenjiang Li
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
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Nahar A, Akbor MA, Pinky NS, Chowdhury NJ, Ahmed S, Gafur MA, Akhtar US, Quddus MS, Chowdhury F. Waste newspaper driven activated carbon to remove polycyclic aromatic hydrocarbon from wastewater. Heliyon 2023; 9:e17793. [PMID: 37449116 PMCID: PMC10336527 DOI: 10.1016/j.heliyon.2023.e17793] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/20/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023] Open
Abstract
In this study, a carbon-based adsorbent was developed from waste newspaper through pyrolysis at 800 °C to evaluate the removal efficiency of polycyclic aromatic hydrocarbons (Benzo[ghi]perylene (BghiP) and Indeno [1,2,3-cd] pyrene (IP)) from wastewater. The surface area of the developed adsorbent was estimated at 509.247m2g-1 which allowed the adsorption of the PAHs from wastewater. The maximum adsorption capacity was estimated at 138.436 μg g-1 and 228.705 μg g-1 for BghiP and IP, respectively and the highest removal efficiency was observed at pH 2. Around 91% removal efficiency was observed at pH 7 for both pollutants. Experimental adsorption data were fit for pseudo-second-order kinetics and Langmuir isotherm models, which demonstrate electrostatic interaction, monolayered deposition, hydrogen bonding, and π-π interaction between adsorbate and adsorbent which play a significant role in adsorption. The regeneration study described that the developed adsorbent could be able to intake 52.75% BghiP and 48.073% IP until the 8th and 6th cycles, respectively. The removal efficiency of the adsorbent in the real sample was also evaluated. This study will provide a method to convert waste material into adsorbent and will remove PAHs from wastewater as a function of pollutant mitigation and waste management.
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Affiliation(s)
- Aynun Nahar
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Md. Ahedul Akbor
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Nigar Sultana Pinky
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Nushrat Jahan Chowdhury
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Shamim Ahmed
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Md. Abdul Gafur
- Pilot Plant and Process Development Center (PP&PDC), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Umme Sarmeen Akhtar
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Md. Saiful Quddus
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Fariha Chowdhury
- Biomedical and Toxicological Research Institute (BTRI), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
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Zhu J, Lu H, Song J. Fabrication of EVOH/PANI Composite Nanofibrous Aerogels for the Removal of Dyes and Heavy Metal Ions. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2393. [PMID: 36984273 PMCID: PMC10054761 DOI: 10.3390/ma16062393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/07/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
Water pollution caused by the leakage and discharge of pollutants, such as dyes and heavy metal ions, can cause serious damage to the environment and human health. Therefore, it is important to design and develop adsorbent materials that are efficient and multifunctional for the removal of these pollutants. In this work, poly(vinyl alcohol-co-ethylene) (EVOH)/polyaniline (PANI) composite nanofibrous aerogels (NFAs) were fabricated via solution oxidation and blending. The aerogels were characterized by a scanning electron microscope, Fourier transform infrared spectrometry, a contact angle measuring instrument and a universal testing machine. The influences of the introduction of PANI nanorods on the structural properties of aerogels were investigated, and the adsorption performance of aerogels was also studied. The results showed that the introduction of PANI nanorods filled the fibrous network structure, reduced porosity, increased surface hydrophilicity and improved compressive strength. Furthermore, EVOH/PANI composite NFAs possess good adsorption performances for dyes and heavy metal ions: The adsorption capacities of methyl orange and chromium ions (VI) are 73.22 mg/g and 115.54 mg/g, respectively. Overall, the research suggests that EVOH/PANI NFAs have great potential as efficient and multifunctional adsorbent materials for the removal of pollutants from water.
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Affiliation(s)
- Junshan Zhu
- Sinopec Marketing Jiangsu Company, Nanjing 210003, China
| | - Hang Lu
- Sinopec Marketing Jiangsu Company, Nanjing 210003, China
| | - Jianan Song
- Research School of Polymeric Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
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Qiao A, Huang R, Wu J, Qi W, Su R. Anisotropic cellulose nanocrystalline sponge sheets with ultrahigh water fluxes and oil/water selectivity. Carbohydr Polym 2023; 312:120807. [PMID: 37059539 DOI: 10.1016/j.carbpol.2023.120807] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/11/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Oily sewage caused by oil spill accidents has become a severe problem in the last decades. Hence, two-dimensional sheet-like filter materials for oil/water separation have received widespread attention. Porous sponge materials were developed using cellulose nanocrystals (CNCs) as raw materials. They are environmentally friendly and easy to prepare, with high flux and separation efficiency. The 1,2,3,4-butane tetracarboxylic acid cross-linked anisotropic cellulose nanocrystalline sponge sheet (B-CNC) exhibited ultrahigh water fluxes driven by gravity alone, depending on the aligned structure of channels and the rigidity of CNCs. Meanwhile, the sponge gained superhydrophilic/underwater superhydrophobic wettability with an underwater oil contact angle of up to 165.7° due to its ordered micro/nanoscale structure. B-CNC sheets displayed high oil/water selectivity without additional material doping or chemical modification. For oil/water mixtures, high separation fluxes of approximately 100,000 L·m-2·h-1 and separation efficiencies of up to 99.99 % were obtained. For a Tween 80-stabilized toluene-in-water emulsion, the flux reached >50,000 L·m-2·h-1, and the separation efficiency was above 99.7 %. B-CNC sponge sheets showed significantly higher fluxes and separation efficiencies than other bio-based two-dimensional materials. This research provides a facile and straightforward fabrication method of environmental-friendly B-CNC sponges for rapid, selective oil/water separation.
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Affiliation(s)
- Aihua Qiao
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China; Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
| | - Renliang Huang
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China; Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
| | - Jiangjiexing Wu
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China; Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Membrane Science and Desalination Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Rongxin Su
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China; Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China; State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Membrane Science and Desalination Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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9
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Qin W, Chen Z, Liu X, Zhang X, Ai M, Zhang P, Ye Y, Ma Z. BiPO 4-coated carbon microtube electrodes: preparation and characterization of their properties and electrocatalytic degradation of methylene blue. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:29190-29205. [PMID: 36414891 DOI: 10.1007/s11356-022-24203-1] [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: 11/16/2021] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Bismuth phosphate (BiPO4), a very attractive candidate for organics electrodegradation, harbors tremendous potential on removing contaminants from water. Here, four carbon microtube electrodes were prepared from corncob, each coated with BiPO4 by a different method to study the electrodegradation of methylene blue (MB). A thorough insight into the composite features of four electrodes was characterized. Better reversibility and electrocatalytic activity of the fourth electrode (BCC4) prepared by digital signal generator was presented with a current density of 5.71 mA cm-2 at a potential of 1.6 V vs Ag/AgCl. The electrochemical impedances and actual lifetime of BCC4 were 125 Ω and 833 h, respectively. The effectiveness of each kind of BiPO4/carbon electrode was preliminarily evaluated by analyzing the actual conversion rate of the MB concentration, which confirms MB electrodegradation by the BiPO4/carbon electrode was mainly dominated by the hydroxyl radical oxidation. The mass transfer rate was increased by carbon microtube; thereby, electrocatalysis of BiPO4/carbon electrode increased as revealed by an increase in the MB degradation rate. The rate constants k obtained for the degradation of MB by BiPO4/carbon electrode at 20 ℃ was 0.0046 mM-1 s-1, which was 11 times than that of BiPO4. The diffusion layer was decreased by carbon microtube, resulting in MB electrodegradation rate increased. The BiPO4 coated on the surface of the carbon microtube electrodes strengthened their electrocatalytic performance, which shed new light on effective selection of suitable carbon electrode for degradation of organics. Therefore, BiPO4/carbon electrode could be potentially applied in the electrodegradation of organic pollutants.
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Affiliation(s)
- Wenli Qin
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
- Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Zefei Chen
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
- Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Xueya Liu
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
- Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Xinyi Zhang
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
- Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Manqing Ai
- Ocean College, Zhejiang University, Zhoushan, 316021, People's Republic of China
| | - Pingping Zhang
- Ocean College, Zhejiang University, Zhoushan, 316021, People's Republic of China
| | - Ying Ye
- Ocean College, Zhejiang University, Zhoushan, 316021, People's Republic of China
| | - Zengling Ma
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China.
- Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, People's Republic of China.
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10
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Dong T, Liu Y, Tian N, Zhang Y, Han G, Peng F, Lou CW, Chi S, Liu Y, Liu C, Lin JH. Photothermal and Concus Finn capillary assisted superhydrophobic fibrous network enabling instant viscous oil transport for crude oil cleanup. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130193. [PMID: 36265385 DOI: 10.1016/j.jhazmat.2022.130193] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 09/29/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Rapid and effective removal of highly viscous oil spills from the sea remains a great challenge globally. Superhydrophobic materials are attractive candidates for handling oil spills, but they are restrained to recover oils with low viscosity exclusively. Herein, we report a novel polypyrrole wrapped superhydrophobic fibrous network using cross-shaped polyester fibers as starting blocks. The polypyrrole coating enables the absorbent to convert light to heat, ensuring that the viscosity of heavy oils in the proximity can be easily controlled. In the meanwhile, the special structure of the starting fibers initiates Concus Finn (CFin) capillary allowing instant oil transport in the network. When the absorbent is exposed to light oils (0-500 mPa.s), the oils can be transported instantly via CFin capillary. Interestingly, under synergistic effect of light-to-heat conversion and CFin capillary, a drawing-sticking crude oil strip (105 mPa.s) is sucked instantly against gravity by the absorbent. The absorbent is successfully applied to efficiently separate both oil/water mixtures and oil/water emulsions (efficiency > 99%). Such absorbent can absorb 62.99-74.23 g/g light oils on average and up to 123.3 g/g crude oil under 0-2 sun illumination, holding a huge potential in managing oil spills.
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Affiliation(s)
- Ting Dong
- College of Textile and Clothing, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, 308 Ningxia Road, Qingdao, PR China.
| | - Yanhui Liu
- College of Textile and Clothing, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, 308 Ningxia Road, Qingdao, PR China
| | - Na Tian
- College of Textile and Clothing, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, 308 Ningxia Road, Qingdao, PR China
| | - Yuanming Zhang
- College of Textile and Clothing, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, 308 Ningxia Road, Qingdao, PR China
| | - Guangting Han
- College of Textile and Clothing, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, 308 Ningxia Road, Qingdao, PR China
| | - Fudi Peng
- Fujian Aton Advanced Materials Science and Technology Co., Ltd, Fujian 350304, PR China
| | - Ching-Wen Lou
- College of Textile and Clothing, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Department of Bioinformatics and Medical Engineering, Asia University, Taichung City 413305, Taiwan; College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, PR China
| | - Shan Chi
- Bestee Material Co., Ltd., Qingdao, Shandong 266001, PR China
| | - Yanming Liu
- Sinotech Academy of Textile Co., Ltd., Qingdao, Shandong 266001, PR China
| | - Cui Liu
- Qingdao Byherb New Material Co., Ltd., Qingdao, Shandong 266001, PR China
| | - Jia-Horng Lin
- College of Textile and Clothing, Qingdao University, 308 Ningxia Road, Qingdao, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, 308 Ningxia Road, Qingdao, PR China; College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, PR China; Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City 407102, Taiwan.
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11
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Blaquera ALM, Herrera MU, Manalo RD, Maguyon-Detras MC, Futalan CCM, Balela MDL. Oil Adsorption Kinetics of Calcium Stearate-Coated Kapok Fibers. Polymers (Basel) 2023; 15:polym15020452. [PMID: 36679332 PMCID: PMC9864453 DOI: 10.3390/polym15020452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/22/2022] [Accepted: 12/28/2022] [Indexed: 01/19/2023] Open
Abstract
This study used a simple and efficient dipping method to prepare oleophilic calcium stearate-coated kapok fibers (CaSt2-KF) with improved hydrophobicity. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) confirmed the deposition of calcium stearate particles on the surface of the kapok fibers. This led to higher surface roughness and improved static water contact angle of 137.4°. The calcium stearate-coated kapok fibers exhibited comparable sorption capacities for kerosene, diesel, and palm oil. However, the highest sorption capacity of 59.69 g/g was observed for motor oil at static conditions. For motor oil in water, the coated fibers exhibited fast initial sorption and a 65% removal efficiency after 30 s. At equilibrium, CaSt2-KF attained a sorption capacity of 33.9 g/g and 92.5% removal efficiency for motor oil in water. The sorption kinetics of pure motor oil and motor oil in water follows the pseudo-second-order kinetic model, and the Elovich model further described chemisorption. Intraparticle diffusion and liquid film diffusion were both present, with the latter being the predominant diffusion mechanism during motor oil sorption.
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Affiliation(s)
- Aimee Lorraine M. Blaquera
- Sustainable Electronic Materials Group, Department of Mining, Metallurgical, and Materials Engineering, University of the Philippines Diliman, Quezon City 1101, Metro Manila, Philippines
| | - Marvin U. Herrera
- Institute of Mathematical Sciences and Physics, College of Arts and Sciences, University of the Philippines Los Baños, Los Baños 4031, Laguna, Philippines
| | - Ronniel D. Manalo
- Department of Forest Products and Paper Science, College of Forestry and Natural Resource, University of the Philippines Los Baños, Los Baños 4031, Laguna, Philippines
| | - Monet Concepcion Maguyon-Detras
- Department of Chemical Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, Los Baños 4031, Laguna, Philippines
| | - Cybelle Concepcion M. Futalan
- Department of Community and Environmental Resource Planning, College of Human Ecology, University of the Philippines Los Baños, Los Baños 4031, Laguna, Philippines
| | - Mary Donnabelle L. Balela
- Sustainable Electronic Materials Group, Department of Mining, Metallurgical, and Materials Engineering, University of the Philippines Diliman, Quezon City 1101, Metro Manila, Philippines
- Correspondence: ; Tel.: +63-02-8981-8500 (ext. 3171)
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12
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Wu D, Hu S, Lu B, Hu Y, Wang M, Yu W, Wang GG, Zhang J. Waste to treasure: Superwetting foam enhanced by bamboo powder for sustainable on-demand oil-water separation. JOURNAL OF HAZARDOUS MATERIALS 2023; 441:129829. [PMID: 36058186 DOI: 10.1016/j.jhazmat.2022.129829] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/04/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
Low-cost and sustainable superwetting materials are urgently required for oily wastewater treatment. Many poly(vinylidene fluoride) (PVDF)-based materials have been designed for oil-water separation. However, their fabrication processes frequently require toxic organic solvents and high-cost materials (e.g., carbon tubes and graphene). In this study, a highly porous and superhydrophobic bamboo powders (BP)-enhanced PVDF foam (SBPF) was fabricated via an organic solvent-free process. The SBPF exhibits efficient adsorption and recovery for various oils and organic solvents. Moreover, the SBPF shows high adsorption and separation performance under ultraviolet exposure and turbulent environments. It can also be used for water-in-oil emulsions separation, with a high separation efficiency more than 99.3 % under gravity. Interestingly, the amphiphilic PVDF-BP foam (ABPF) shows underwater superoleophobicity and underoil superhydrophobicity after delignification of SBPF. Owing to the conversion of wettability, it presents a high performance in treatment of both surfactant-stabilied water-in-oil and oil-in-water emulsions with the high separation efficiency achieving more than 99.6 % and 99.5 % respectively under gravity. In addition, the ABPF shows a high separation performance even after ten cycles. Hence, this fabricated organic solvent-free foams are promising candidates for sustainable on-demand separation of oils or organic solvents and water in complex environments.
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Affiliation(s)
- Dong Wu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Shunyou Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Beibei Lu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Yuanyuan Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Mi Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Wen Yu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Gui-Gen Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China.
| | - Jiaheng Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China.
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13
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Yan Y, He M, Zhou P, Zeng X, Huang X, Pi P, Xu S, Wang L, Wen X. Durable superhydrophobic sponge for all-weather cleanup of viscous crude oil by electrothermal and photothermal effects. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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14
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Wang Y, Lu H, Wang X, Han L, Liu X, Cheng D, Yang F, Guo F, Wang W. Green tubular micro/nano architecture constructed by in-situ planting of small AgNPs on Kapok fiber for oil spill recovery, smart oil-water separation and multifunctional applications. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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15
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Biobased Kapok Fiber Nano-Structure for Energy and Environment Application: A Critical Review. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228107. [PMID: 36432208 PMCID: PMC9699385 DOI: 10.3390/molecules27228107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/08/2022] [Accepted: 11/12/2022] [Indexed: 11/23/2022]
Abstract
The increasing degradation of fossil fuels has motivated the globe to turn to green energy solutions such as biofuel in order to minimize the entire reliance on fossil fuels. Green renewable resources have grown in popularity in recent years as a result of the advancement of environmental technology solutions. Kapok fiber is a sort of cellulosic fiber derived from kapok tree seeds (Ceiba pentandra). Kapok Fiber, as a bio-template, offers the best alternatives to provide clean and renewable energy sources. The unique structure, good conductivity, and excellent physical properties exhibited by kapok fiber nominate it as a highly favored cocatalyst for deriving solar energy processes. This review will explore the role and recent developments of KF in energy production, including hydrogen and CO2 reduction. Moreover, this work summarized the potential of kapok fiber in environmental applications, including adsorption and degradation. The future contribution and concerns are highlighted in order to provide perspective on the future advancement of kapok fiber.
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16
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Natural Hollow Fiber-Derived Carbon Microtube with Broadband Microwave Attenuation Capacity. Polymers (Basel) 2022; 14:polym14214501. [PMID: 36365495 PMCID: PMC9655754 DOI: 10.3390/polym14214501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/17/2022] Open
Abstract
Constructing hierarchical structures is indispensable to tuning the electromagnetic properties of carbon-based materials. Here, carbon microtubes with nanometer wall thickness and micrometer diameter were fabricated by a feasible approach with economical and sustainable kapok fiber. The carbonized kapok fiber (CKF) exhibits microscale pores from the inherent porous templates as well as pyrolysis-induced nanopores inside the wall, affording the hierarchical carbon microtube with excellent microwave absorbing performance over broad frequency. Particularly, CKF-650 exhibits an optimized reflection loss (RL) of −62.46 dB (10.32 GHz, 2.2 mm), while CKF-600 demonstrates an effective absorption bandwidth (RL < −10 dB) of 6.80 GHz (11.20−18.00 GHz, 2.8 mm). Moreover, more than 90% of the incident electromagnetic wave ranging from 2.88 GHz to 18.00 GHz can be dissipated by simply controlling the carbonization temperature of KF and/or the thickness of the carbon-microtube-based absorber. These encouraging findings provide a facile alternative route to fabricate microwave absorbers with broadband attenuation capacity by utilizing sustainable biomass.
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17
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Ma S, Xu M, Zhao Z, Pan J, Zhao S, Xue J, Ye Z. Preparation of 3D superhydrophobic porous g-C3N4 nanosheets@carbonized kapok fiber composites for oil/water separation and treating organic pollutants. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Zheng D, Hua D, Cheng X, Pan J, Ibrahim A, Hua H, Zhang P, Cha X, Xu K, Zhan G. Polyamide Composite Membranes for Enhanced
OSN
Performance by Metal Ions Assisted Interfacial Polymerization Method. AIChE J 2022. [DOI: 10.1002/aic.17896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dayuan Zheng
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Dan Hua
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Xi Cheng
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Junyang Pan
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Abdul‐Rauf Ibrahim
- Department of Mechanical Engineering, Faculty of Engineering and Built Environment Tamale Technical University Education Ridge Avenue, Sagnarigu District Tamale Ghana
| | - Haiming Hua
- College of Energy & School of Energy Research Xiamen University Xiamen Fujian P. R. China
| | - Peng Zhang
- College of Energy & School of Energy Research Xiamen University Xiamen Fujian P. R. China
| | - Xingwen Cha
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Kaiji Xu
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Guowu Zhan
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
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19
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A microgel-structured cellulose nanofibril coating with robust antifouling performance for highly efficient oil/water and immiscible organic solvent separation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128875] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Sustainable Kapok Fiber-Derived Carbon Microtube as Broadband Microwave Absorbing Material. MATERIALS 2022; 15:ma15144845. [PMID: 35888312 PMCID: PMC9321174 DOI: 10.3390/ma15144845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/23/2022] [Accepted: 07/05/2022] [Indexed: 12/31/2022]
Abstract
The design of hierarchical structures from biomass has become one of the hottest subjects in the field of microwave absorption due to its low cost, vast availability and sustainability. A kapok-fiber-derived carbon microtube was prepared by facile carbonization, and the relation between the structure and properties of the carbonized kapok fiber (CKF) was systematically investigated. The hollow tubular structures afford the resulting CKF composites with excellent microwave-absorbing performance. The sample with a 30 wt.% loading of CKF in paraffin demonstrates the strongest microwave attenuation capacity, with a minimum reflection loss of −49.46 dB at 16.48 GHz and 2.3 mm, and an optimized effective absorption bandwidth of 7.12 GHz (10.64–17.76 GHz, 2.3 mm) that covers 34% of the X-band and 96% of the Ku-band. Further, more than 90% of the incident electromagnetic wave in the frequency from 4.48 GHz to 18.00 GHz can be attenuated via tuning the thickness of the CKF-based absorber. This study outlines a foundation for the development of lightweight and sustainable microwave absorbers with a high absorption capacity and broad effective absorption bandwidth.
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21
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Sun Q, Xiang B, Mu P, Li J. Green Preparation of a Carboxymethyl Cellulose-Coated Membrane for Highly Efficient Separation of Crude Oil-In-Water Emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:7067-7076. [PMID: 35617663 DOI: 10.1021/acs.langmuir.2c00834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Developing high-performance membranes is an extremely significant strategy to combat increasing severe oil pollution. However, most of the previously reported superwettable membranes have been inevitably involved with the use of toxic solvents and complicated preparation processes. In addition, most of them lacked the capacity of separating crude oil-in-water emulsions. Herein, a facile and green strategy is employed to fabricate a polytetrafluoroethylene (PTFE) membrane with a mixed suspension of PDA@ZIF-8 and carboxymethyl cellulose (CMC) using water as a solvent via the vacuum filtration method. Combining hydrophilic property with micro-nano-roughness, the CMC-PDA@ZIF-8-coated PTFE membrane (CPZP membrane) exhibits excellent underwater superoleophobicity. More importantly, the separation efficiency of various surfactant-stabilized oil-in-water emulsions including crude oil/water emulsion is higher than 99.2% with a flux up to 1306.5 L m-2 h-1, and the separation performance remains nearly the same after 10 cycles. Moreover, outstanding underwater superoleophobic and self-cleaning properties are maintained after long-distance sandpaper abrasion and multiple bending tests. Meanwhile, its exceptional separation performance is still maintained in harsh environments (3.5 wt % NaCl, 1 M HCl, 60 °C hot water) even after immersing it for 24 h. Therefore, this green-prepared and high-performance membrane has tremendous application prospects in treating oily wastewater.
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Affiliation(s)
- Qing Sun
- Gansu International Scientific and Technological Cooperation Base of Water-retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Bin Xiang
- Gansu International Scientific and Technological Cooperation Base of Water-retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Peng Mu
- Gansu International Scientific and Technological Cooperation Base of Water-retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Jian Li
- Gansu International Scientific and Technological Cooperation Base of Water-retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
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22
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Dong T, Tian N, Xu B, Huang X, Chi S, Liu Y, Lou CW, Lin JH. Biomass poplar catkin fiber-based superhydrophobic aerogel with tubular-lamellar interweaved neurons-like structure. JOURNAL OF HAZARDOUS MATERIALS 2022; 429:128290. [PMID: 35066226 DOI: 10.1016/j.jhazmat.2022.128290] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/07/2022] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Superhydrophobic aerogels are attractive candidates in controlling oil spills. The major challenges for existing aerogels are the construction of mechanical endurance as well as accessible of building materials. Herein, a newfangled biomass superhydrophobic aerogel (M-PCF/CS) with both superior compressibility and oil caption speed is fabricated by assembling poplar catkin fiber (PCF) hollowed-out shell of 330 nm and chitosan (CS) into tubular-lamellar interweaved neurons-like structure. The resultant aerogels (porosity ~ 96.12%), with flexuous PCF as the elastic buffer and second-pore capillaries, exhibit large longitudinal and transverse compressibility, endurable fatigue tolerance, fast oil sorption rate with a capacity of 28.8-78.1 g/g at 5-25 s. In parallel, the aerogels are tolerant of NaCl, UV radiation, and organic solvents without superhydrophobic variation and a case of oil spill remediation via pump-supported experiment shows that the aerogels facilely achieve continuous oil recycling from seawater by 23052-43956 L·m-2·h-1. Furthermore, the resultant M-PCF/CS, with assistance of an oscillator, can be applied to separate oil/water emulsions with efficiency of 98.07-99.11%. The successful fabrication of this material provides a new design strategy for the construction of mechanically robust aerogels for speedy and economical cleanup of oil pollutants from water.
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Affiliation(s)
- Ting Dong
- College of Textile and Clothing, Qingdao University, #308, Ningxia Road, Qingdao 266071, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, #308 Ningxia Road, Qingdao 266071, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao 266071, P.R. China.
| | - Na Tian
- College of Textile and Clothing, Qingdao University, #308, Ningxia Road, Qingdao 266071, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, #308 Ningxia Road, Qingdao 266071, PR China
| | - Bing Xu
- College of Textile and Clothing, Qingdao University, #308, Ningxia Road, Qingdao 266071, PR China
| | - Xiaohua Huang
- Bestee Material (Qingdao) Co., Ltd., Qingdao, Shandong 266001, PR China
| | - Shan Chi
- Bestee Material (Qingdao) Co., Ltd., Qingdao, Shandong 266001, PR China
| | - Yanming Liu
- Bestee Material (Qingdao) Co., Ltd., Qingdao, Shandong 266001, PR China
| | - Ching-Wen Lou
- College of Textile and Clothing, Qingdao University, #308, Ningxia Road, Qingdao 266071, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, #308 Ningxia Road, Qingdao 266071, PR China; Department of Bioinformatics and Medical Engineering, Asia University, Taichung 413305, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404332, Taiwan; Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China.
| | - Jia-Horng Lin
- College of Textile and Clothing, Qingdao University, #308, Ningxia Road, Qingdao 266071, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, #308 Ningxia Road, Qingdao 266071, PR China; Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407802, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404332, Taiwan; Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China.
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23
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Chen X, Yang Y, Guan Y, Luo C, Bao M, Li Y. A solar-heated antibacterial sodium alginate aerogel for highly efficient cleanup of viscous oil spills. J Colloid Interface Sci 2022; 621:241-253. [PMID: 35461139 DOI: 10.1016/j.jcis.2022.04.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/04/2022] [Accepted: 04/11/2022] [Indexed: 10/18/2022]
Abstract
HYPOTHESIS Major oil spills highlight the need for environmentally responsible and cost-effective recovery technologies. However, challenges remain for heavy oil spill recovery because of its high viscosity and low fluidity. To achieve this goal, an ecofriendly bio-based aerogel with efficient photothermal conversion ability was developed as a novel absorbent to achieve the fast removal of heavy oil spill by reducing the oil viscosity. EXPERIMENTS From the renewable and abundant raw material sodium alginate (SA), hydrophobic and antibacterial SA/graphene oxide/ZIF-8 aerogel (SAGZM) was successfully fabricated via freezing-drying and chemical vapor deposition (CVD) technique. A series of characterization and tests, including aerogel structure, selective wettability, photothermal conversion ability, crude oil removal capability, and antibacterial ability, have been investigated in detail. SAGZM aerogels have rich pore structure, high porosity, excellent mechanical properties, and better photothermal conversion efficiency. FINDINGS Under sunlight illumination, the recovery ability of SAGZM for heavy crude oil was investigated through infrared thermal imaging, oil permeability behavior analysis, and the continuous absorption for crude oil. In addition, these results are well supported by the theoretical liquid absorption coefficient. This study indicates that SAGZM is highly efficient in in situ regulating oil viscosity through its remarkably photothermal conversion capability. Importantly, SAGZM possesses an excellent antibacterial ability that is often neglected in the design of environmentally friendly materials in extending its service life. The findings of this work not only provide an eco-friendly bio-based aerogel material but also demonstrate that the photo-responsive SAGZM is efficient in heavy crude oil absorption. The proposed solar-heated SA-based aerogel provides a sustainable approach and material to solve the recovery problem of viscous crude oil spills.
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Affiliation(s)
- Xiuping Chen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Yushuang Yang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Yihao Guan
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Chengyi Luo
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Mutai Bao
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Yiming Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China.
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24
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Lu J, Jiang Y, Xiao R, Jacob KI, Tao L, Li S, Guo L. Chemical Vapor Deposition Based Superelastic and Superhydrophoboic Thermoplastic Polymeric Nanofibrous Aerogels for Water Purification. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02330-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Han J, Li B, Nai X, Wu P, Zhang B, Dong Y, Li W, Liu X. Facile strategy for the construction of a robust underbrine superoleophobic membrane for highly efficient oil-brine separation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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26
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Xu M, Ma S, Li J, Yuan M, Gao J, Xue J, Wang M. Multifunctional 3D polydimethylsiloxane modified MoS2@biomass-derived carbon composite for oil/water separation and organic dye adsorption/photocatalysis. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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27
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Futalan CM, Choi AES, Soriano HGO, Cabacungan MKB, Millare JC. Modification Strategies of Kapok Fiber Composites and Its Application in the Adsorption of Heavy Metal Ions and Dyes from Aqueous Solutions: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19052703. [PMID: 35270400 PMCID: PMC8910290 DOI: 10.3390/ijerph19052703] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 12/27/2021] [Accepted: 01/13/2022] [Indexed: 11/16/2022]
Abstract
Kapok fiber (Ceiba pentandra) belongs to a group of natural fibers that are mainly composed of cellulose, lignin, pectin, and small traces of inorganic compounds. These fibers are lightweight with hollow tubular structure that is easy to process and abundant in nature. Currently, kapok fibers are used in industry as filling material for beddings, upholstery, soft toys, and nonwoven materials. However, kapok fiber has also a potential application in the adsorptive removal of heavy metal ions and dyes from aqueous systems. This study aims to provide a comprehensive review about the recent developments on kapok fiber composites including its chemical properties, wettability, and surface morphology. Effective and innovative kapok fiber composites are analyzed with the help of characterization tools such as scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and Brunauer-Emmett-Teller analysis. Different pre-treatment methods such as alkali and acid pre-treatment, oxidation pre-treatment, and Fenton reaction are discussed. These techniques are applied to enhance the hydrophilicity and to generate rougher fiber surfaces. Moreover, surface modification and synthesis of kapok fiber-based composites and its environmental applications are examined. There are various methods in the fabrication of kapok fiber composites that include chemical modification and polymerization. These procedures allow the kapok fiber composites to have higher adsorption capacities for selective heavy metal and dye removal.
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Affiliation(s)
- Cybelle Morales Futalan
- Department of Community and Environmental Resource Planning, University of the Philippines, Los Baños 4031, Laguna, Philippines
- Correspondence: or
| | - Angelo Earvin S. Choi
- Department of Chemical Engineering, De La Salle University, Taft Avenue, Manila 2401, Metro Manila, Philippines;
| | - Hannah Georgia O. Soriano
- School of Chemical, Biological, and Materials Engineering and Sciences, Mapua University, 658 Muralla St, Intramuros, Manila 1002, Metro Manila, Philippines; (H.G.O.S.); (M.K.B.C.); (J.C.M.)
| | - Melbourne Klein B. Cabacungan
- School of Chemical, Biological, and Materials Engineering and Sciences, Mapua University, 658 Muralla St, Intramuros, Manila 1002, Metro Manila, Philippines; (H.G.O.S.); (M.K.B.C.); (J.C.M.)
| | - Jeremiah C. Millare
- School of Chemical, Biological, and Materials Engineering and Sciences, Mapua University, 658 Muralla St, Intramuros, Manila 1002, Metro Manila, Philippines; (H.G.O.S.); (M.K.B.C.); (J.C.M.)
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28
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Tian N, Wu S, Han G, Zhang Y, Li Q, Dong T. Biomass-derived oriented neurovascular network-like superhydrophobic aerogel as robust and recyclable oil droplets captor for versatile oil/water separation. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127393. [PMID: 34656938 DOI: 10.1016/j.jhazmat.2021.127393] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/18/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
Using tubular kapok fibers (KF) and sodium alginate (SA) as the natural building block, we put forward a novel oriented neurovascular network-like superhydrophobic aerogel with robust dry and wet compression resilience by directional freeze-drying and chemical vapor deposition. In the block, SA forms aligned channel structures providing space for rapid oil transmission, while KF serves as vascular-like capillaries acting as instant "tentacle" to capture the tiny oil droplets in water, facilitating fascinating oil capture efficiency for versatile oil/water separation, The aerogel after dry and wet compression (under a strain of 60%) can recover 96.0% and 97.3% its original, respectively, facilitating stable oil recovery (81.1-89.8%) by squeezing, high separation efficiency (99.04-99.64%) and permeation flux separating oil contaminants from water. A pump-supported experiment shows the aerogel efficiently collecting oil contaminants from the water's surface and bottom by 11503-25611 L·m-2·h-1. Particularly, the aerogel as robust oil droplets captor facilely achieves isolation of 99.39-99.68% emulsified oils from oil/water emulsions by novel oil trapping mechanism which simply involves exerting kinetic energy on emulsified oils through repeated oscillation, potentially indicating a simple and efficient alternative to membrane-based oily wastewater remediation via filtration.
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Affiliation(s)
- Na Tian
- College of Textile and Clothing, Qingdao University, #308 Ningxia Road, Qingdao, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, #308 Ningxia Road, Qingdao, PR China
| | - Shaohua Wu
- College of Textile and Clothing, Qingdao University, #308 Ningxia Road, Qingdao, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, #308 Ningxia Road, Qingdao, PR China
| | - Guangting Han
- College of Textile and Clothing, Qingdao University, #308 Ningxia Road, Qingdao, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao, PR China
| | - Yuanming Zhang
- College of Textile and Clothing, Qingdao University, #308 Ningxia Road, Qingdao, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao, PR China
| | - Qiang Li
- College of Textile and Clothing, Qingdao University, #308 Ningxia Road, Qingdao, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao, PR China
| | - Ting Dong
- College of Textile and Clothing, Qingdao University, #308 Ningxia Road, Qingdao, PR China; Advanced Medical Care and Protection Technology Research Center, Qingdao University, #308 Ningxia Road, Qingdao, PR China; Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao, PR China.
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29
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Wang Q, Xie D, Chen J, Luo J, Chen G, Yu M. Straightforward fabrication of robust and healable superhydrophobic steel mesh based on polydimethylsiloxane. J Appl Polym Sci 2022. [DOI: 10.1002/app.52206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qing Wang
- Institute of Biological and Medical Engineering Guangdong Academy of Sciences, Guangdong Biomaterials Engineering Technology Research Center Guangzhou China
| | - Dong Xie
- Institute of Biological and Medical Engineering Guangdong Academy of Sciences, Guangdong Biomaterials Engineering Technology Research Center Guangzhou China
| | - Junjia Chen
- Institute of Biological and Medical Engineering Guangdong Academy of Sciences, Guangdong Biomaterials Engineering Technology Research Center Guangzhou China
| | - Jie Luo
- School of Materials Science and Hydrogen Energy, Guangdong Key Laboratory for Hydrogen Energy Technologies Foshan University Foshan China
| | - Guangxue Chen
- State Key Laboratory of Pulp and Paper Engineering South China University of Technology Guangzhou China
| | - Mingguang Yu
- School of Materials Science and Hydrogen Energy, Guangdong Key Laboratory for Hydrogen Energy Technologies Foshan University Foshan China
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30
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Zhang H, Wang X, Wang Y, Gu Z, Chen L. Bi-functional water-purification materials derived from natural wood modified TiO 2 by photothermal effect and photocatalysis. RSC Adv 2022; 12:26245-26250. [PMID: 36275091 PMCID: PMC9477069 DOI: 10.1039/d2ra02013k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 08/30/2022] [Indexed: 11/30/2022] Open
Abstract
As one of the sustainable and renewable materials, the carbonization of natural wood is generally considered as a low-cost, environmentally friendly method to fabricate carbon materials. Natural wood, by surficial carbonization, can possess an excellent photothermal effect, low heat loss, and easy water transportation in the solar water desalination process based on the unique structures, leading to high solar water desalination performance. Here, we design and construct a composite of commercial P25 nanocrystal-loaded semi-spherical wood with surficial carbonization at the semi-spherical end (P25/wC-s-s), which is beneficial for light harvesting and water evaporation due to the semi-spherical structure-induced large surface area. The composite displays bi-functions of high solar-to-vapour energy efficiency and an intriguing photo-degradation efficiency for organic pollutants in the solar water purification process. The research provides a novel approach to engineering an efficient, stable, and low-cost bi-functional device for the photothermal/photoelectronic conversion of water treatment. A bifunctional water-purification material is designed by surficial carbonization of the semi-spherical end of a natural wood block and loading of P25 on the lateral surfaces of wood domains.![]()
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Affiliation(s)
- Hui Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Xiaohua Wang
- Department of Pharmaceutical Engineering, Bengbu Medical College, Bengbu, 233030, China
| | - Yao Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Zhizhi Gu
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Liyong Chen
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- Department of Pharmaceutical Engineering, Bengbu Medical College, Bengbu, 233030, China
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31
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Wu D, Wang T, Hu S, Wu W, Lu B, Huang X, Yu W, Wang M, Wang GG, Zhang J. Solvent-free processing of eco-friendly magnetic and superhydrophobic absorbent from all-plant-based materials for efficient oil and organic solvent sorption. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149558. [PMID: 34391146 DOI: 10.1016/j.scitotenv.2021.149558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
The unique features of bioresources such as cellulose and bio-wax include renewability, biodegradability, low cost, and abundance on Earth. Therefore, their efficient use is essential for a sustainable economy. Herein, we report a facile method for the surface modification of pretreated cotton with a bio-wax emulsion in water and Fe3O4 nanoparticles to fabricate a green, durable, magnetic, and superhydrophobic/superoleophilic absorbent for the sorption of oil and organic solvents. Magnetic superhydrophobic cotton (MSC) was successfully prepared via a simple two-step dip-coating method without using any toxic organic reagents. The as-prepared MSC was used to selectively absorb various types of oils and organic solvents up to approximately 20-50 times its own weight. Furthermore, it exhibited a stable magnetic responsivity and high reusability in oil/water separation cycles. In addition, the removal and collection of the absorbed oil/organic solvents were easily achieved with distillation and a vacuum air pump. Moreover, the as-prepared MSC was used in a heavy oil/water gravity-separation filter system and in the continuous collection of a light oil from water surfaces using a pump. The proposed concept may provide a green and sustainable strategy for fabricating superhydrophobic/superoleophilic materials for efficient sorption of oils and organic solvents.
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Affiliation(s)
- Dong Wu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Tiansheng Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Shunyou Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Wanbao Wu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Beibei Lu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Xiyan Huang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Wen Yu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Mi Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Gui-Gen Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, PR China.
| | - Jiaheng Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China.
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32
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Steamed bun-derived microporous carbon for oil-water separation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Wang S, Zhang C, Liu Q, Tan B. Unprecedented processable hypercrosslinked polymers with controlled knitting. Macromol Rapid Commun 2021; 43:e2100449. [PMID: 34624165 DOI: 10.1002/marc.202100449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/30/2021] [Indexed: 11/07/2022]
Abstract
Processable microporous organic polymers (MOPs) attract incomparable research interests becuase their vairous types such as monoliths and membranes are for practical application. Most of processable MOPs usually need the harsh conditions such as the use of expensive metal catalysts, specialized stereospecific monomers etc., which restrict the sustainable and real applications of processable MOPs. Therefore, the economical mass production of processable MOPs remains a formidable challenge. Herein, we report that a novel strategy for constructing processable hypercrosslinked polymers (HCPs) need two steps synthesis of pre-crosslinking and deep-crosslinking using divinylbenzene (DVB) as self-crosslinking monomer under the catalysis of a small amount of FeCl3 . The resulting HCPs monoliths possess high BET surface area of 1033-1056 m2 g-1 with hierarchical porosity, and show excellent mechanical strength up to 65 MPa. It is, to the best of our knowledge, the first report of using aromatic vinyl monomers as self-crosslinking monomers to generate HCPs monoliths with high surface area, yielding no by-products and high mechanical strength. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Shaolei Wang
- Key Laboratory for Materials Chemistry for Energy Conversion Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Chengxin Zhang
- Key Laboratory for Materials Chemistry for Energy Conversion Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qingsong Liu
- Key Laboratory for Materials Chemistry for Energy Conversion Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Bien Tan
- Key Laboratory for Materials Chemistry for Energy Conversion Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
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34
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Kim H, Zhang G, Wu M, Guo J, Nam C. Highly efficient and recyclable polyolefin-based magnetic sorbent for oils and organic solvents spill cleanup. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126485. [PMID: 34323724 DOI: 10.1016/j.jhazmat.2021.126485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/07/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
The oil dispersants have been applied in a broad oil pollution area, but the dispersed oil caused environmental problems during sedimentation. Unlike oil dispersants, flake type polyolefin-based oil absorbent (PA) is not emulsified and shows excellent swelling characteristic for oil removal. However, the sprayed PA flakes cannot be fully collected due to its tiny architectures, the uncollected flakes can cause unintentional secondary pollution. In this study, we develop a kind of flake type polyolefin-based magnetic absorbent (PMA) hybridized with magnetic nanoparticle, to facilitate the collection process. The magnetic nanoparticle is uniformly dispersed in PMA due to the hydrophobic functionalization of iron oxide nanoparticle. This enables the convenient collection of isolated sorbent flakes even when they were placed in the marine system and show a desirable oil recovery performance up to about 37 times for organic solvent. Moreover, oil-soaked PMA flakes can be fully converted into refined oil via a pyrolysis process. After pyrolysis, the thermally undecomposed compounds, which comprise of carbon residue and magnetic nanoparticle, can be also separated by a magnet. The as-prepared flake type PMA possesses good oil recovery performance, fast magnetic response, and efficient oil recycling, thus representing an environmentally promising method for oil spill cleanup.
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Affiliation(s)
- Hyeongoo Kim
- Organic Materials and Fiber Engineering, Jeonbuk National University, 567 Baekje-daero, Deogjin-dong, Deokjin-gu, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Gang Zhang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, United States
| | - Min Wu
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jinshan Guo
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Changwoo Nam
- Organic Materials and Fiber Engineering, Jeonbuk National University, 567 Baekje-daero, Deogjin-dong, Deokjin-gu, Jeonju, Jeollabuk-do 54896, Republic of Korea.
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35
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Wang Y, Zhang M, Shen X, Wang H, Wang H, Xia K, Yin Z, Zhang Y. Biomass-Derived Carbon Materials: Controllable Preparation and Versatile Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2008079. [PMID: 34142431 DOI: 10.1002/smll.202008079] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Biomass-derived carbon materials (BCMs) are encountering the most flourishing moment because of their versatile properties and wide potential applications. Numerous BCMs, including 0D carbon spheres and dots, 1D carbon fibers and tubes, 2D carbon sheets, 3D carbon aerogel, and hierarchical carbon materials have been prepared. At the same time, their structure-property relationship and applications have been widely studied. This paper aims to present a review on the recent advances in the controllable preparation and potential applications of BCMs, providing a reference for future work. First, the chemical compositions of typical biomass and their thermal degradation mechanisms are presented. Then, the typical preparation methods of BCMs are summarized and the relevant structural management rules are discussed. Besides, the strategies for improving the structural diversity of BCMs are also presented and discussed. Furthermore, the applications of BCMs in energy, sensing, environment, and other areas are reviewed. Finally, the remaining challenges and opportunities in the field of BCMs are discussed.
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Affiliation(s)
- Yiliang Wang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
- Institute for Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology, Karlsruhe, 76131, Germany
| | - Mingchao Zhang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Xinyi Shen
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
- Cavendish Laboratory, University of Cambridge, Cambridge, CB2 1TN, UK
| | - Huimin Wang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Haomin Wang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Kailun Xia
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhe Yin
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yingying Zhang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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36
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Slepičková Kasálková N, Slepička P, Švorčík V. Carbon Nanostructures, Nanolayers, and Their Composites. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2368. [PMID: 34578684 PMCID: PMC8466887 DOI: 10.3390/nano11092368] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 09/08/2021] [Indexed: 01/15/2023]
Abstract
The versatility of the arrangement of C atoms with the formation of different allotropes and phases has led to the discovery of several new structures with unique properties. Carbon nanomaterials are currently very attractive nanomaterials due to their unique physical, chemical, and biological properties. One of these is the development of superconductivity, for example, in graphite intercalated superconductors, single-walled carbon nanotubes, B-doped diamond, etc. Not only various forms of carbon materials but also carbon-related materials have aroused extraordinary theoretical and experimental interest. Hybrid carbon materials are good candidates for high current densities at low applied electric fields due to their negative electron affinity. The right combination of two different nanostructures, CNF or carbon nanotubes and nanoparticles, has led to some very interesting sensors with applications in electrochemical biosensors, biomolecules, and pharmaceutical compounds. Carbon materials have a number of unique properties. In order to increase their potential application and applicability in different industries and under different conditions, they are often combined with other types of material (most often polymers or metals). The resulting composite materials have significantly improved properties.
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Affiliation(s)
| | - Petr Slepička
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic; (N.S.K.); (V.Š.)
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Huang Z, Zhang J, Li S, Yuan G, Li F, Zeng Y, Han L, Jia Q, Zhang H, Zhang S. Joule-heatable bird-nest-bioinspired/carbon nanotubes-modified sepiolite porous ceramics: An efficient, sturdy, and continuous strategy for oil recovery. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:125979. [PMID: 34015716 DOI: 10.1016/j.jhazmat.2021.125979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/15/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
Oil-spill accident is a severe globally concerned environmental issue. In this work, a Joule-heatable bird-nest-bioinspired/carbon nanotubes-modified sepiolite porous ceramic (JBN/CM-SC) was developed, using inexpensive sepiolite porous ceramics as the substrate and carbon nanotubes (CNTs) derived from waste plastics as the modifier. The former exhibited outstanding mechanical property (1.7 MPa of compressive strength), gas permeability (9.1 × 10-11 m2), thermal conductivity (0.215 W·m-1·K-1) and thermal/chemical stability. As expected, the deposited CNTs not only conferred a hydrophobic surface, but also resulted in a Joule-heating ability of intrinsically non-conductive ceramics. As-prepared JBN/CM-SC demonstrated a separation rate as high as 120-200 kg·s-1·m-2 for oil recovery and a high selectivity of over 95%. The Joule heat generated by the heated JBN/CM-SC could in-situ reduce the oil-viscosity, remarkably increasing the oil-diffusion. The separation rate was enhanced by ~12 times with respect to that of the non-heated counterpart. In addition, the idea of modular design was proposed. By simply combining JBN/CM-SC components with pipes and a pump, a continuous in-situ collection of oil from an oil/water mixture was realized, providing an efficient, sturdy, and continuous approach to recover the spilled oil in an oil-spill accident.
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Affiliation(s)
- Zhong Huang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Rd, Wuhan 430081, China
| | - Jun Zhang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Rd, Wuhan 430081, China
| | - Saisai Li
- Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China
| | - Gaoqian Yuan
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Rd, Wuhan 430081, China
| | - Faliang Li
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Rd, Wuhan 430081, China
| | - Yuan Zeng
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Rd, Wuhan 430081, China
| | - Lei Han
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Rd, Wuhan 430081, China
| | - Quanli Jia
- Henan Key Laboratory of High Temperature Functional Ceramics, Zhengzhou University, Zhengzhou 450052, China
| | - Haijun Zhang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Rd, Wuhan 430081, China.
| | - Shaowei Zhang
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Stocker Rd, Exeter EX4 4QF, UK.
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Ghasemi S, Abareshi H. Swelling behavior of super‐absorbent lipophilic polyelectrolytes based on poly(lauryl acrylate‐
co
‐styrene) comprised quaternary ammonium compounds with tetrafluoroborate anion in organic solvents. NANO SELECT 2021. [DOI: 10.1002/nano.202100068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Soheila Ghasemi
- Department of Chemistry Shiraz University Shiraz 7194684795 I.R. Iran
| | - Habib Abareshi
- Department of Chemistry Shiraz University Shiraz 7194684795 I.R. Iran
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39
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Yang S, Chen L, Liu S, Hou W, Zhu J, Zhao P, Zhang Q. Facile and sustainable fabrication of high-performance cellulose sponge from cotton for oil-in-water emulsion separation. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124408. [PMID: 33168311 DOI: 10.1016/j.jhazmat.2020.124408] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/16/2020] [Accepted: 10/25/2020] [Indexed: 06/11/2023]
Abstract
Given complexity and diversity of oily wastewater, developing highly efficient separation materials through green and facile strategy are urgently needed. Herein, a smart strategy is demonstrated to transform raw cotton into uniform cellulose sponge for separation oil-in-water emulsion. The raw cotton is directly treated in zinc chloride aqueous solutions through a controllable dissolution process. After regeneration without any further chemical modification and freeze drying, the evolved cellulose sponge, which is composed of partially dissolved cotton fiber and exfoliated regenerated cellulose, exhibits interesting three-dimensional (3D) interconnected hierarchical porous network structure and stable wettability of superoleophobicity (θoil>150º) under water. Cellulose sponge has excellent underwater superoleophobicity and antifouling property due to the natural hydrophilicity of cellulose. Based on the beneficial 3D hierarchical structure and superwettability, the cellulose sponge can separate highly emulsified oil-in-water emulsions with efficiency up to 99.2% solely under the driving of gravity. Our strategy provides a generic way to convert cellulose-based materials into cellulose porous materials with excellent permeability, separation efficiency, antifouling, and reusability property for oil/water emulsions separation. This economical, environmentally friendly and functional cellulose sponge not only allows natural cotton resources to be used rationally with high value-added, but also effectively solves the problems of oily wastewater.
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Affiliation(s)
- Sudong Yang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, PR China.
| | - Lin Chen
- Institute for Advanced Study, Chengdu University, Chengdu 610106, PR China.
| | - Shuai Liu
- Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China
| | - Wenjie Hou
- Shanxi Coal and Chemical Technology Institute Co., Ltd., Xi'an 710070, PR China
| | - Jie Zhu
- Institute for Advanced Study, Chengdu University, Chengdu 610106, PR China
| | - Peng Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, PR China
| | - Qian Zhang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, PR China
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40
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Pham TH, Jung SH, Kim YJ, Kim T. Adsorptive removal and recovery of organic pollutants from wastewater using waste paper-derived carbon-based aerogel. CHEMOSPHERE 2021; 268:129319. [PMID: 33359995 DOI: 10.1016/j.chemosphere.2020.129319] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/05/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
In this study, carbon-based aerogels derived from waste paper (CWP) were explored as an efficent adsorbent to remove organic pollutants including phenol (Ph) and 2-chlorophenol (2CP) from wastewater. CWP exhibited a highly porous structure and large specific surface area of 892 m2 g-1, which facilitated the adsorption of Ph and 2CP in wastewater. The adsorption behavior of Ph and 2CP on CWP could be well described by the pseudo-second-order kinetics and Langmuir isotherm models. Based on the Langmuir isotherm, the maximum adsorption capacities of CWP for Ph and 2CP were 238 and 278 mg g-1, respectively, and these values were much higher than those of other adsorbents. The removal of the organic pollutants mainly occurred through electrostatic attraction, pore-filling, hydrogen bonding, and π-π interactions. The CWP can be directly applied for the removal of Ph and 2CP at low concentration (<200 mg L-1) in the wastewater, while they can be used with additional pre-treatment for wastewater containing high concentration of organic pollutants. The adsorptive recovery of organic compounds and potential reuse of treated wastewater were also discussed. This work provides an efficient approach to produce effective adsorbent for the removal and recovery of chemicals from wastewater.
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Affiliation(s)
- Thi Huong Pham
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, 13120, South Korea
| | - Sung Hoon Jung
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, 13120, South Korea
| | - Yoon Jin Kim
- Energy Nano Materials Research Center, Korea Electronics Technology Institute, 25 Saenari-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-816, South Korea
| | - TaeYoung Kim
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, 13120, South Korea.
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Yang J, Xiao Q, Jia X, Li Y, Wang S, Song H. Enhancement of wastewater treatment by underwater superelastic fiber-penetrated lamellar monolith. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:124016. [PMID: 33265042 DOI: 10.1016/j.jhazmat.2020.124016] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/07/2020] [Accepted: 09/14/2020] [Indexed: 06/12/2023]
Abstract
During the removal of pollutants from wastewater, the underwater compressibility of three-dimensional biomass materials is the main factor determining their properties and service life. To construct a chitosan (CS)-based material with underwater superelasticity, a bidirectional freezing technique was used to introduce bamboo fibers (BFs) as bridges between CS lamellae to form a biomimetic CS/BFs monolith with an architecture similar to Thalia dealbata stems. BFs completely penetrated CS lamellae from the top down, which served as springs to dampen the elastic deformation during compressive cycles. After 10,000 underwater compressive cycles at 60% strain, the plastic deformation was negligible, and after 100 cycles at 90% strain, the monolith retained 93.8% of the maximum stress. Moreover, the CS/BFs monolith was loaded with CaCO3 nanoparticles via compression-release-compression to obtain a CS/BFs/CaCO3 monolith that exhibited excellent water purification capabilities. The CS/BFs/CaCO3 monolith removed water-soluble dyes, heavy-metal ions, and emulsified oils from water with a high separation efficiency by simple squeezing and pumping methods. The novel pumping technology using the CS/BFs/CaCO3 monolith provides a facile and rapid method to separate oil-in-water emulsions (maximum water flux of 11,776.9 L m-2 h-1). Therefore, the CS/BFs/CaCO3 monolith with underwater superelasticity has great potential applications for wastewater treatment.
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Affiliation(s)
- Jin Yang
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China.
| | - Qingfeng Xiao
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China
| | - Xiaohua Jia
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China
| | - Yong Li
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China
| | - Sizhe Wang
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China
| | - Haojie Song
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, PR China.
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42
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Kim S, Woo S, Park HR, Hwang W. One-Step Versatile Fabrication of Superhydrophilic Filters for the Efficient Purification of Oily Water. ACS OMEGA 2021; 6:3345-3353. [PMID: 33553952 PMCID: PMC7860237 DOI: 10.1021/acsomega.0c05830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
As industrial oily wastewater can seriously damage ecosystems, the use of filtration technology with functional filters has emerged as an effective approach for purifying oily wastewater and protecting the environment. Although several methods for preparing functional filters with specific wettability have been reported, most methods are complicated, expensive, and time-consuming. Furthermore, these methods are only applicable to specific substrates, which hinder their practical applications. Here, a simple and versatile method for the fabrication of a superhydrophilic filter on any substrate using a one-step dipping process is reported. The method is easily scaled-up to fabricate large-area superhydrophilic filters; moreover, mass production is possible using a roll-to-roll process. The resulting filter is durable, stable, and, due to its stable hydrophilic layer, shows no deterioration in wetting behavior; it also exhibits self-cleaning properties. Based on its selective wetting characteristics, oil/water mixtures and oil-in-water emulsions stabilized by surfactants can be purified in a highly efficient manner. Importantly, owing to its self-cleaning properties, the filter can be reused after simply immersing and washing in water. This easy, cost-effective, fast, and versatile method for fabricating superhydrophilic filters can be practically applied in industries that need to purify oily water.
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43
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Chen C, Chen L, Weng D, Li X, Li Z, Wang J. Simulation Study on the Dynamic Behaviors of Water-in-Oil Emulsified Droplets on Coalescing Fibers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:14872-14880. [PMID: 33231080 DOI: 10.1021/acs.langmuir.0c02948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Although increasing superwetting membranes have been developed for separating oil-water emulsions based on the "size-sieving" mechanism, their pores are easily blocked and fouled by the intercepted emulsified droplets, which would result in a severe membrane fouling issue and a sharp decline in flux. Instead of droplet interception, a fiber-based coalescer separates oil/water emulsions by inducing the emulsified droplets to coalesce and transform into layered oil/water mixtures, exhibiting an ability to work continuously for a long time with high throughput, which makes it a promising technology for emulsion treatment. However, the underlying mechanism of the separation process is not well understood, which makes it difficult to further improve the separation performance. Hence, in this work, the dynamic behaviors of water-in-oil emulsified droplets on the surface of the coalescing fiber were numerically investigated based on the phase-field model. The attachment, transport, and detachment behaviors of droplets on fibers were directly observed, and the effects of fiber wettability, orientation, arrangement, and fluid speed were studied in detail. First, it was observed that the droplets will move downstream along the fiber surface under the effect of fluid shear, and the large droplets tend to coalesce with their downstream small droplets on the same fiber surface because they move faster compared to the small droplets. Second, it was found that the emulsified droplet will spontaneously transport to the intersection of two angled fibers under the drive of asymmetric Laplace pressure, which demonstrated that the emulsified droplets tend to gather at the intersection of fibers when permeating through a coalescing medium. Third, it was found that the detachment behaviors of droplets from the fiber surface are strongly affected by their size, fiber wettability, and fluid velocity. In addition, the results of our simulation show that the backside of two closely attached fibers can further inhibit the detachment of droplets. We truly believe that our research results are of significance to optimize the parameters of a fiber-based coalescer for separating oil-water emulsions and to develop novel oil/water separators.
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Affiliation(s)
- Chaolang Chen
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Lei Chen
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Ding Weng
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Xuan Li
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Zhaoxin Li
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Jiadao Wang
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
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Wu M, Huang S, Liu T, Wu J, Agarwal S, Greiner A, Xu Z. Compressible Carbon Sponges from Delignified Wood for Fast Cleanup and Enhanced Recovery of Crude Oil Spills by Joule Heat and Photothermal Effect. ADVANCED FUNCTIONAL MATERIALS 2020. [DOI: 10.1002/adfm.202006806] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ming‐Bang Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Sheng Huang
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Ting‐Yu Liu
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Jian Wu
- Department of Chemistry Zhejiang University Hangzhou 310027 China
| | - Seema Agarwal
- Macromolecular Chemistry and Bavarian Polymer Institute University of Bayreuth Universitatsstrasse 30 Bayreuth 95440 Germany
| | - Andreas Greiner
- Macromolecular Chemistry and Bavarian Polymer Institute University of Bayreuth Universitatsstrasse 30 Bayreuth 95440 Germany
| | - Zhi‐Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and Key Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China
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45
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Yang S, Chen L, Liu S, Hou W, Zhu J, Zhang Q, Zhao P. Robust Bifunctional Compressed Carbon Foam for Highly Effective Oil/Water Emulsion Separation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44952-44960. [PMID: 32916046 DOI: 10.1021/acsami.0c11879] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this study, we report the pure compressed carbon foam (CCF) that offers a brand-new solution for separating emulsified oil/water mixtures. The CCF was fabricated by low-temperature carbonization of three-dimensional commercial melamine foam, which was then compressed without any further chemical modification. The CCF has amphiphilicity in air, underwater superoleophobicity, and underoil superhydrophobicity; therefore, it has been proved to be successfully utilized in highly emulsified oil-in-water and water-in-oil emulsions with excellent separation efficiencies, and it merely relies on gravity in the absence of external force. The CCF can also maintain its superwetting property under different harsh conditions, including strong acid, alkali, and salt solution conditions; this property offers great opportunities for widespread applications. Importantly, the CCF exhibits excellent permeability, separation efficiency, antifouling, and reusability performance. This novel CCF material has great potential application in handling oily wastewater owing to its low-cost raw materials, easily scaled-up preparation process, excellent antifouling property, and high separation capacity of materials.
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Affiliation(s)
- Sudong Yang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, P. R. China
| | - Lin Chen
- Institute for Advanced Study, Chengdu University, Chengdu 610106, P. R. China
| | - Shuai Liu
- Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, P. R. China
| | - Wenjie Hou
- Shanxi Coal and Chemical Technology Institute Co., Ltd., Xi'an 710070, P. R. China
| | - Jie Zhu
- Institute for Advanced Study, Chengdu University, Chengdu 610106, P. R. China
| | - Qian Zhang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, P. R. China
| | - Peng Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, P. R. China
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46
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Dong T, Li Q, Nie K, Jiang W, Li S, Hu X, Han G. Facile Fabrication of Marine Algae-Based Robust Superhydrophobic Sponges for Efficient Oil Removal from Water. ACS OMEGA 2020; 5:21745-21752. [PMID: 32905415 PMCID: PMC7469389 DOI: 10.1021/acsomega.0c02731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/28/2020] [Indexed: 05/12/2023]
Abstract
Water pollution caused by oil spillages has aroused worldwide attention. Therefore, it is of great significance to develop low-cost, environmentally friendly materials to remove oil contaminants from water. Herein, a "green" superhydrophobic sponge made from marine algae was fabricated by one-step growth of silicone nanofilaments onto a AgNP-decorated alginate sponge via chemical vapor deposition of an azeotrope of (CH3)3SiCl and SiCl4. The reaction of the azeotrope with the alginate sponge was termed "instant", as it took only a few minutes (5 min) at room temperature to achieve superhydrophobicity (152.0°). Such sponges resist high temperatures, UV irradiation, organic solvents, and mechanical abrasion without losing the superhydrophobicity. The sponges absorbed oil droplets within seconds (1.3-7.0 s) with 11.7-17.1 g/g of sorption capacities for oils of different viscous levels (0.56-1775.00 mPa·s). These sponges could retain 90% of the initial oil sorption capacities after 10 consecutive oil sorption/desorption cycles. Benefiting from the superhydrophobicity and superoleophilicity, the sponges also exhibited high efficiency in oil/water mixture separation. Once the oil/water mixture was injected into the sponge, oil drops were retained in inner pores while water was rejected and spouted from the surface. These excellent performances make the resultant sponge a competitive material for oil spill emergency remediation.
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Affiliation(s)
- Ting Dong
- Key
Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao 266071, P. R. China
- College
of Textile, Qingdao University, #308, Ningxia Road, Qingdao 266071, P. R. China
| | - Qiang Li
- Key
Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao 266071, P. R. China
- College
of Textile, Qingdao University, #308, Ningxia Road, Qingdao 266071, P. R. China
| | - Kai Nie
- Key
Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao 266071, P. R. China
- College
of Textile, Qingdao University, #308, Ningxia Road, Qingdao 266071, P. R. China
| | - Wei Jiang
- Key
Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao 266071, P. R. China
- College
of Textile, Qingdao University, #308, Ningxia Road, Qingdao 266071, P. R. China
| | - Shouzhen Li
- Key
Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao 266071, P. R. China
- College
of Textile, Qingdao University, #308, Ningxia Road, Qingdao 266071, P. R. China
| | - Xinyi Hu
- Key
Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao 266071, P. R. China
| | - Guangting Han
- Key
Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, #308 Ningxia Road, Qingdao 266071, P. R. China
- College
of Textile, Qingdao University, #308, Ningxia Road, Qingdao 266071, P. R. China
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Chen C, Chen S, Chen L, Yu Y, Weng D, Mahmood A, Wang J, Parkin IP, Carmalt CJ. Underoil Superhydrophilic Metal Felt Fabricated by Modifying Ultrathin Fumed Silica Coatings for the Separation of Water-in-Oil Emulsions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27663-27671. [PMID: 32431148 DOI: 10.1021/acsami.0c03801] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Although various superhydrophobic/superoleophilic porous materials have been developed and successfully applied to separate water-in-oil emulsions through the size-sieving mechanism, the separation performance is restricted by their nanoscale pore size severely. In this study, the wettability of underoil water on fumed silica was experimentally observed, and the underlying mechanism was investigated by carrying out theoretical analysis and molecular dynamic (MD) simulations. Further, we present a novel, facile, and an inexpensive technique to fabricate an underoil superhydrophilic metal felt with microscale pores for the separation of water-in-oil emulsions using SiO2 nanoparticles (NPs) as building blocks. The as-prepared underoil superhydrophilic coating is closed-packed and ultrathin (the thickness is approximately hundreds of nanometers), as well as capable of being coated on a metal felt with complex structures without blocking its pores. The as-prepared metal felt could adsorb water droplets directly from oil, which endowed it with the ability to separate both surfactant-free and surfactant-stabilized water-in-oil emulsions with high separation efficiency up to 99.7% even though its pore size is larger than that of the emulsified droplet. The filtration flux for the separation of span 80-stabilized emulsion is up to ∼4000 L·m-2·h-1. Its separation performance is better than most of the other traditional membranes and superwettable materials used for the separation of water-in-oil emulsions. Moreover, the as-prepared metal felt retained outstanding separation performance even after 30 cycles of use, which demonstrated its excellent reusability and durability. Additionally, the distinctive wettability of underoil superhydrophilicity endued coated metal felt with superior antifouling properties toward crude oil. Overall, this study not only provides a new perspective on separating water-in-oil emulsions but also gives a universal approach to develop unique wettability surfaces.
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Affiliation(s)
- Chaolang Chen
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P. R. China
- Department of Chemistry, University of College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Shuai Chen
- Institute of High Performance Computing, A*STAR, 138632 Singapore
| | - Lei Chen
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P. R. China
| | - Yadong Yu
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P. R. China
| | - Ding Weng
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P. R. China
| | - Awais Mahmood
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P. R. China
| | - Jiadao Wang
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P. R. China
| | - Ivan P Parkin
- Department of Chemistry, University of College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Claire J Carmalt
- Department of Chemistry, University of College London, 20 Gordon Street, London WC1H 0AJ, U.K
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48
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Shin Y, Han KS, Arey BW, Bonheyo GT. Cotton Fiber-Based Sorbents for Treating Crude Oil Spills. ACS OMEGA 2020; 5:13894-13901. [PMID: 32566856 PMCID: PMC7301594 DOI: 10.1021/acsomega.0c01290] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/22/2020] [Indexed: 05/31/2023]
Abstract
Wood and plant fibers have been studied as natural sorbent materials for treating aquatic oil spills; however, the effectiveness of these materials is limited by their tendency to absorb water as well as oil. Chemical pretreatment of cotton fibers with fatty acids was examined as a means of enhancing the performance of cotton as a sorbent for crude oil. A raw cotton fiber was chemically modified with C18 fatty acid by simple leaving group chemistry. Free surface hydroxyl groups were modified with long alkyl chains to create fibers that displayed increased water contact angles, indicative of a significant decrease in surface energy. The increased affinity for oil and corresponding repulsion of water on the individual modified fibers translated to greater sorption of oil and rejection of water by loose assemblies of fibers (i.e., balls or yarn) when compared with unmodified cotton. X-ray diffraction (XRD) pattern, Fourier transform infrared (FT-IR), 13C cross-polarization/magic angle spinning solid-state nuclear magnetic resonance (CP/MAS SSNMR), and scanning electron microscopy (SEM) showed that cotton fibers were significantly exfoliated by the intercalation of C18 fatty acids about 2.4 times in its diameter. In the presence of seawater, the highly oleophilic C18 fatty acid-modified cotton fiber showed a maximum oil sorption capacity of 35.58 g per gram of fiber, about ∼49% greater than that of the corresponding raw cotton fiber.
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Affiliation(s)
- Yongsoon Shin
- Materials
Sciences, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Kee Sung Han
- Materials
Sciences, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Bruce W. Arey
- Nuclear
Sciences, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - George T. Bonheyo
- Chemical
& Biological Signature Science, Pacific
Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
- Gene
and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
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49
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Wang B, Mahmood A, Chen L, Weng D, Wang C, Chen C, Li Z, Wang J. Under-oil superhydrophilic salt particle filter for the efficient separation of water-in-oil emulsions. Chem Commun (Camb) 2020; 56:11585-11588. [DOI: 10.1039/d0cc04290k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a surfactant stabilized water-in-oil emulsion has been successfully separated by using only NaCl particles as a filter.
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Affiliation(s)
- Bao Wang
- Northeast Petroleum University
- Daqing 163318
- China
- State Key Laboratory of Tribology
- Tsinghua University
| | - Awais Mahmood
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Lei Chen
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Ding Weng
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Caihua Wang
- Northeast Petroleum University
- Daqing 163318
- China
| | - Chaolang Chen
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Zhaoxin Li
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Jiadao Wang
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
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