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Al-Attabi R, Morsi Y, Kujawski W, Kong L, Schütz JA, Dumée LF. Wrinkled silica doped electrospun nano-fiber membranes with engineered roughness for advanced aerosol air filtration. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.01.049] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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52
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Xu H, Jin W, Wang F, Liu G, Li C, Wang J, Zhu H, Guo Y. Formation and characterization of polytetrafluoroethylene nanofiber membranes for high-efficiency fine particulate filtration. RSC Adv 2019; 9:13631-13645. [PMID: 35519588 PMCID: PMC9063921 DOI: 10.1039/c9ra01643k] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 04/17/2019] [Indexed: 12/12/2022] Open
Abstract
Polytetrafluoroethylene (PTFE) porous membranes are widely used for high-temperature filtration. The polytetrafluoroethylene nanofiber membranes for fine particulate filtration were prepared by sintering the precursor electrospun polytetrafluoroethylene/polyvinyl/boric acid alcohol composite membranes. The effects of PTFE/PVA mass ratio and sintering temperature on the morphology and properties of the prepared membranes were investigated to obtain the PTFE nanofibers with different diameters, and the film has been characterized by SEM, TG, XRD, FT-IR, and EDS, and the mechanical and hydrophobic properties of the membranes were also investigated. The PTFE nanofiber membranes after sintering had nanofiber and nanowire structures. Moreover, the membranes were tested in air filtration. The filtration efficiency and pressure drop were tested to evaluate the membrane permeability and separation properties. The results showed a high filtration efficiency (98%) and a low pressure drop (90 Pa) for 300 nm sodium chloride aerosol particles at a 30 L min-1 airflow velocity and the hydrophobic membranes showed durable self-cleaning properties, which suggested that the PTFE nanofiber membranes were a promising candidate for high temperature filtration applications.
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Affiliation(s)
- Huan Xu
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University Hangzhou 310018 China
| | - Wangyong Jin
- Zhejiang Dong Da Environment Engineering Co., Ltd Zhuji 311800 China
| | - Feng Wang
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Kertice Hi-Tech Fluor-Material Co., Ltd Huzhou 313000 China
| | - Guojin Liu
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University Hangzhou 310018 China
| | - Chengcai Li
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University Hangzhou 310018 China
| | - Jieqi Wang
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University Hangzhou 310018 China
| | - Hailin Zhu
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University Hangzhou 310018 China
- Zhejiang Kertice Hi-Tech Fluor-Material Co., Ltd Huzhou 313000 China
| | - Yuhai Guo
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University Hangzhou 310018 China
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53
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Electrospun CuO-ZnO nanohybrid: Tuning the nanostructure for improved amperometric detection of hydrogen peroxide as a non-enzymatic sensor. J Colloid Interface Sci 2019; 550:180-189. [PMID: 31075673 DOI: 10.1016/j.jcis.2019.04.091] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/20/2019] [Accepted: 04/29/2019] [Indexed: 01/13/2023]
Abstract
Hydrogen peroxide (H2O2) is a by-product of some biochemical processes which is catalyzed by enzymes such as glucose oxidase (GOx), cholesterol oxidase (ChoOx), etc and its overproduction in living cells can trigger cancer growth and various diseases. Therefore, H2O2 sensing is of great importance in the determination of diseases as well as industries and environmental health plans. We produced ZnO-CuO nanofibers by electrospinning method for non-enzymatic electrochemical H2O2 sensing. The sensing properties of the carbon paste electrode (CPE) modified with ZnO (0.3 wt%)/CuO (0.7 wt%) nanofibers (named as ZnO3-CuO7) for detection of H2O2 were explored in phosphate-buffered saline (PBS) at pH ∼ 7.4 solution. The ZnO3-CuO7 nanofiber exhibited the lowest charge transfer resistance and the highest electrocatalytic performance among other modified electrodes for detection of H2O2 and considered as an optimized sample. The effect of scan rate and H2O2 concentration in the reduction process were also investigated by cyclic voltammetry (CV) and the mechanism for the electrochemical reaction of H2O2 at the surface of the optimized electrode was studied. The diffusion coefficient of H2O2 and the catalytic rate constant were evaluated by chronoamperometry as 1.65 × 10-5 cm2 s-1 and 6 × 103 cm3 mol-1 s-1, respectively. Furthermore, amperometric detection of H2O2 with a low detection limit of 2.4 µM and a wide linear range of 3 to 530 µM were obtained. Meanwhile, the optimized electrode displayed no recognizable response towards some biomolecules such as ascorbic acid, uric acid, dopamine and glucose. The obtained results confirmed that the modified electrode shows high sensitivity and selectivity as a H2O2 biosensor with improved reproducibility and stability.
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54
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Choi J, Park J, Kang J, Frey MW, Oh JW, Kang YC. Investigation of physicochemical properties of CuSn-based PAN nanofibers prepared via electrospinning method. SURF INTERFACE ANAL 2019. [DOI: 10.1002/sia.6630] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jinhee Choi
- Department of Chemistry; Pukyong National University; Busan South Korea
| | - Juyun Park
- Department of Chemistry; Pukyong National University; Busan South Korea
| | - Jisoo Kang
- Department of Fiber Science and Apparel Design; Cornell University; Ithaca NY USA
- Robert Frederick Smith School of Chemical and Biomolecular Engineering; Cornell University; Ithaca NY USA
- Department of Physics and Astronomy; University of Pennsylvania; Philadelphia PA USA
- Nano/Bio Interface Center; University of Pennsylvania; Philadelphia PA USA
| | - Margaret W. Frey
- Department of Fiber Science and Apparel Design; Cornell University; Ithaca NY USA
| | - Jin-Woo Oh
- Department of Nanoenergy Engineering; Pusan National University; Busan South Korea
| | - Yong-Cheol Kang
- Department of Chemistry; Pukyong National University; Busan South Korea
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55
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High filtration efficiency fluffy material: nano-fiber constructing gradient structure on recycled curved PET micro-fibers web. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0209-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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56
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Al-Attabi R, Morsi Y, Schütz JA, Dumée LF. One-pot synthesis of catalytic molybdenum based nanocomposite nano-fiber membranes for aerosol air remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 647:725-733. [PMID: 30092529 DOI: 10.1016/j.scitotenv.2018.08.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 08/03/2018] [Accepted: 08/04/2018] [Indexed: 05/29/2023]
Abstract
The development of fibrous air filters exhibiting high air filtration efficiency, low energy consumption, and self-cleaning properties is a critical challenge to generate the next generation of resilient air filtration systems. Nano-fibrous mats typically exhibit higher particle capture efficiency but may also lead to higher airflow resistance compared to macro-fibrous materials due to their tighter structure. In this paper, novel catalytic membranes mats were fabricated through a one-pot synthesis from ammonium tetrathiomolybdate (ATTM) doped poly(acrylonitrile) (PAN) nanofibers for sub-micron diameter aerosol particle removal. The presence of ATTM as a dopant in conjunction with a PAN polymeric matrix was found to not only enhance the air filtration performance by increasing aerosol particle removal down to 300 nm, but also increase the photocatalytic properties of the PAN material. The enhanced separation properties compared to bare polymeric PAN nanofibrous membranes were attributed to surface nanotexturation of the fibers, leading to protrusions and pores across the nano-fiber structures, thus leading to more permeable and lightweight membranes with higher particle capture capacities. The samples were benchmarked against commercial glass fiber air filters and found to offer higher filtration efficiency, lower pressure drop, and higher quality factor than the commercial filters. Specifically, the quality factors of the catalytic nano-fiber membranes were found to be up to four times higher than that of the benchmarked commercial air filters for PM2.5 particles, while two times higher for 300 nm sized contaminants. The presence of the ATTM across the PAN matrix was also found to enhance the photocatalytic activity of the membranes by up to 130% compared to the bare PAN reference nanofibers. This novel strategy opens avenues to engineering advanced multifunctional catalytic membranes, to capture toxic particulate matter from air while offering self-cleaning properties when exposed to sunlight.
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Affiliation(s)
- Riyadh Al-Attabi
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Vic 3122, Australia; Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia; Middle Technical University, Al-Za'franiya, Baghdad 10074, Iraq.
| | - Yosry Morsi
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Vic 3122, Australia
| | - Jürg A Schütz
- CSIRO Manufacturing, Waurn Ponds, Victoria 3216, Australia
| | - Ludovic F Dumée
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.
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57
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Electrospun carbon nanofibers/TiO2-PAN hybrid membranes for effective removal of metal ions and cationic dye. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.enmm.2018.08.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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58
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Zong H, Xia X, Liang Y, Dai S, Alsaedi A, Hayat T, Kong F, Pan JH. Designing function-oriented artificial nanomaterials and membranes via electrospinning and electrospraying techniques. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:1075-1091. [DOI: 10.1016/j.msec.2017.11.007] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 10/27/2017] [Accepted: 11/11/2017] [Indexed: 12/16/2022]
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59
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Bai R, Kang J, Simalou O, Liu W, Ren H, Gao T, Gao Y, Chen W, Dong A, Jia R. Novel N–Br Bond-Containing N-Halamine Nanofibers with Antibacterial Activities. ACS Biomater Sci Eng 2018; 4:2193-2202. [DOI: 10.1021/acsbiomaterials.7b00996] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Rong Bai
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
| | - Jing Kang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
| | - Oudjaniyobi Simalou
- Departement de Chimie, Faculte Des Sciences (FDS), Universite de Lome (UL), Lome BP 1515, Togo
| | - Wenxin Liu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
| | - Hui Ren
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
| | - Tianyi Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
| | - Yangyang Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
| | - Wanjun Chen
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
| | - Ran Jia
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
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60
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Lu Y, Shah KW, Xu J. Synthesis, Morphologies and Building Applications of Nanostructured Polymers. Polymers (Basel) 2017; 9:E506. [PMID: 30965809 PMCID: PMC6418613 DOI: 10.3390/polym9100506] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/03/2017] [Accepted: 10/10/2017] [Indexed: 11/30/2022] Open
Abstract
Nanostructured polymers (NSPs) are polymeric materials in the size of nanoscale, normally consisting of nanoparticles, nanofibers, nanowires, nanospheres and other morphologies. Polymer nanoparticles (PNPs) can be fabricated either by physical methods (i.e., solvent evaporation, nanoprecipitation, salting out) or by direct nanosynthesis, using micro- or nanoemulsions with nanoreactor compartments to perform polymerization. Polymer nanofibers (PNFs) can be produced via various techniques and the most commonly used approach is electrospinning, whereby a charged solution of a polymer when exposed to an opposite high electric field is pulled into long thin nanofibers. NSPs in general exhibit enhanced properties such as excellent structural and mechanical properties, making them promising candidates for some particular building applications. A variety of PNFs have been developed and used for noise and air pollution filtration. Moreover, PNFs can also be fabricated with phase change materials which are usually employed for thermal energy storage in construction industry. In this review, we will summarize the morphologies and nanosynthesis methods of NSPs, in particular, PNPs and PNFs. In addition, representative NSPs mainly used in construction are introduced for building applications.
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Affiliation(s)
- Yong Lu
- School of Design and Environment, National University of Singapore, 4 Architecture Drive, Singapore 117566, Singapore.
| | - Kwok Wei Shah
- School of Design and Environment, National University of Singapore, 4 Architecture Drive, Singapore 117566, Singapore.
| | - Jianwei Xu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore.
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