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Sang Y, Cui C, Zhao Y, Zhang X, Zhang Z, Wang F, Liu R, Sui C, He X, Wang C. A single carbon nanotube-entangled high-performance buckypaper with tunable fracture mode. Phys Chem Chem Phys 2024; 26:4135-4143. [PMID: 38226650 DOI: 10.1039/d3cp04555b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
It is well known that the traditional buckypaper (BP) is composed of a certain number of short carbon nanotubes (CNTs) intertwined with each other and sliding always happens when the BP is under tensile and impact loading, which results in inferior mechanical properties compared to single CNTs. In this work, a highly-entangled single-wire BP (SWBP) structure is constructed by a modified self-avoiding random walk approach. The in-plane mechanical properties and impacting behaviors of the SWBPs with different entanglement degrees and interface frictions are systematically investigated via newly developed coarse-grained molecular dynamics (CGMD) simulation. A coarse-grained method can effectively reflect the inter-tube van der Waals (vdW) interactions and the mechanical behaviors of CNTs, including tension, bending and adhesion. In this work, from the tensile simulations of the SWBP, the results showed that the self-locking mechanism between entangled CNTs could significantly enhance the tensile resistance of the film. Besides, the mechanical properties of the SWBP are highly dependent on the entanglement degree and the interface friction between CNTs. Furthermore, two distinct fracture modes, ductile fracture and brittle fracture, are revealed, which can be efficiently controlled by changing the related friction between CNTs. From the impacting simulations, it is found that the impacting performance can be effectively tuned by adjusting the entanglement degree of the film. In addition, the kinetic energy of the projectile could be rapidly dissipated through the stretching and bending of CNTs in the SWBP. This work provides an in-depth understanding of the effect of interface friction and entanglement degree on the mechanical properties of the buckypaper and provides a reference for the preparation of strong CNT-based micromaterials.
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Affiliation(s)
- Yuna Sang
- School of Astronautics, Harbin Institute of Technology, Harbin 150001, China.
| | - Chongxiao Cui
- School of Astronautics, Harbin Institute of Technology, Harbin 150001, China.
| | - Yushun Zhao
- School of Astronautics, Harbin Institute of Technology, Harbin 150001, China.
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China
| | - Xiuping Zhang
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Zhuochao Zhang
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Fei Wang
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Rong Liu
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Chao Sui
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China
- Shenzhen STRONG Advanced Materials Research Institute Co., Ltd, Shenzhen 518000, China
| | - Xiaodong He
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China
- Shenzhen STRONG Advanced Materials Research Institute Co., Ltd, Shenzhen 518000, China
| | - Chao Wang
- School of Astronautics, Harbin Institute of Technology, Harbin 150001, China.
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China
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2
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Lee S, Han IK, Jeon NG, Lee Y, Son HB, Han DY, Nam S, Chung T, Kwak MJ, Kim YS, Park S. Promoting Homogeneous Zinc-Ion Transfer Through Preferential Ion Coordination Effect in Gel Electrolyte for Stable Zinc Metal Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304915. [PMID: 37870210 DOI: 10.1002/advs.202304915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/25/2023] [Indexed: 10/24/2023]
Abstract
Aqueous zinc metal batteries (AZMBs) are emerging energy storage systems that are poised to replace conventional lithium-ion batteries owing to their intrinsic safety, facile manufacturing process, economic benefits, and superior ionic conductivity. However, the issues of inferior anode reversibility and dendritic plating during operation remain challenging for the practical use of AZMBs. Herein, a gel electrolyte based on zwitterionic poly(sulfobetaine methacrylate) (poly(SBMA)) dissolved with different concentrations of ZnSO4 is proposed. Two-dimensional correlation spectroscopy based on Raman analysis reveals an enhanced interaction priority between the polar groups in SBMA and the dissolved ions as electrolyte concentration increases, which establishes a robust interaction and renders homogeneous ion distribution. Attributable to the modified coordination, zwitterionic gel polymer electrolyte with 5 mol kg-1 of ZnSO4 (ZGPE-5) facilitates stable zinc deposition and improves anode reversibility. By taking advantage of preferential coordination, a symmetrical cell evaluation employing ZGPE-5 demonstrates a cycle life over 3600 h, where ZGPE-5 also exerts a beneficial effect on the full cell cycling when assembled with Zn0.25 V2 O5 cathode. This study elucidates changes in the internal ion behavior that are dependent on electrolyte concentrations and pave the way for durable AZMBs.
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Affiliation(s)
- Sangyeop Lee
- Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Im Kyung Han
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Na Gyeong Jeon
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Yubin Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Hye Bin Son
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Dong-Yeob Han
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Seoha Nam
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Taehun Chung
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Myung-Jun Kwak
- Advanced Batteries Research Center (ABRC), Korea Electronics Technology Institute (KETI), 25 Saenari-ro, Bundang-gu, Seongnam, 13509, Republic of Korea
| | - Youn Soo Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Soojin Park
- Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
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3
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H Q Le A, Hoang HY, Le Van T, Hoang Nguyen T, Uyen Dao M. Adsorptive removal of benzene and toluene from aqueous solutions by oxygen-functionalized multi-walled carbon nanotubes derived from rice husk waste: A comparative study. CHEMOSPHERE 2023; 336:139265. [PMID: 37339705 DOI: 10.1016/j.chemosphere.2023.139265] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/26/2023] [Accepted: 06/16/2023] [Indexed: 06/22/2023]
Abstract
One of the current directions for sustainable development is to use waste resources to create materials that reduce environmental pollution. In this study, multi-walled carbon nanotubes (MWCNT) and their oxygen-functionalized forms (HNO3/H2SO4-oxidized MWCNT, NaOCl-oxidized MWCNT, and H2O2-oxidized MWCNT) were first synthesized from activated carbon (AC) derived from rice husk waste. A comprehensive comparison of the morphological and structural properties of these materials was conducted using FT-IR, BET, XRD, SEM, TEM, TGA, Raman spectroscopy, and surface charge analysis. The morphology study suggests that the synthesized MWCNTs have an average outer and inner diameter of about 40 and 20 nm, respectively. Additionally, the NaOCl-oxidized MWCNT possesses the largest interspaces between nanotubes, while the HNO3/H2SO4-oxidized CNT has the most oxygen-functional groups, including -COOH, (Ar)-OH, and C-OH. The adsorption capacities of these materials were also compared for the removal of benzene and toluene. Experimental results have shown that while porosity is the primary factor governing the benzene and toluene adsorption onto AC, functionalization degree and surface chemical characteristics are the determining factors in the adsorption capacity of the as-prepared MWCNTs. The adsorption capacity of these aromatic compounds in an aqueous solution increases in the following order: AC < MWCNT < HNO3/H2SO4-oxidized MWCNT < H2O2-oxidized MWCNT < NaOCl-oxidized MWCNT, and in all cases, toluene is more readily adsorbed than benzene under similar adsorption conditions. Wherein the uptake of both pollutants by the prepared adsorbents in this study is best described by the Langmuir isotherm and obeys the pseudo-second-order kinetic model. The adsorption mechanism was discussed in a detailed manner.
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Affiliation(s)
- Anh H Q Le
- Faculty of General Sciences, Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City, 70000, Viet Nam.
| | - Hien Y Hoang
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, 550000, Viet Nam.
| | - Thuan Le Van
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, 550000, Viet Nam
| | - Tien Hoang Nguyen
- University of Da Nang, University of Science and Education, 459 Ton Duc Thang St., Lien Chieu, Da Nang, 550000, Viet Nam
| | - My Uyen Dao
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, 550000, Viet Nam.
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Sadiq M, Khan MA, Hasan Raza MM, Aalam SM, Zulfequar M, Ali J. Enhancement of Electrochemical Stability Window and Electrical Properties of CNT-Based PVA-PEG Polymer Blend Composites. ACS OMEGA 2022; 7:40116-40131. [PMID: 36385886 PMCID: PMC9648156 DOI: 10.1021/acsomega.2c04933] [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: 08/04/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
New polymer blend composite electrolytes (PBCEs) were prepared by the solution casting technique using poly(vinyl alcohol) (PVA)-polyethylene glycol (PEG), sodium nitrate (NaNO3) as a doping salt and multiwalled carbon nanotubes (MWCNTs) as fillers. The X-ray diffraction pattern confirms the structural properties of the polymer blend composite films. FTIR investigations were carried out to understand the chemical properties and their band assignments. The ionic conductivity of the 10 wt % MWCNTs incorporated PVA-PEG polymer blend was measured as 4.32 × 10-6 S cm-1 at 20 °C and increased to 2.253 × 10-4 S/cm at 100 °C. The dependence of its conductivity on temperature suggests Arrhenius behavior. The equivalent circuit models that represent the R s(Q1(R1(Q2(R2(CR3))))) were used to interpret EIS data. The dielectric behavior of the samples was investigated by utilizing their AC conductance spectra, dielectric permittivity, dielectric constant (εi and εr), electric modulus (Mi and Mr), and loss tangent tan δ. The dielectric permittivity of the samples increases due to electrode polarization effects in low frequency region. The loss tangent's maxima shift with increasing temperature; hence, the peak height rises in the high frequency region. MWCNTs-based polymer blend composite electrolytes show an enhanced electrochemical stability window (4.0 V), better transference number (0.968), and improved ionic conductivity for use in energy storage device applications.
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Affiliation(s)
- Mohd Sadiq
- Department
of Physics, Jamia Millia Islamia (A Central
University), New Delhi110025, India
- Department
of Physics, A. R. S. D College, University
of Delhi, New Delhi110021, India
| | - M. Ajmal Khan
- Department
of Physics, Jamia Millia Islamia (A Central
University), New Delhi110025, India
| | | | - Shah Masheerul Aalam
- Department
of Physics, Jamia Millia Islamia (A Central
University), New Delhi110025, India
| | - Mohammad Zulfequar
- Department
of Physics, Jamia Millia Islamia (A Central
University), New Delhi110025, India
| | - Javid Ali
- Department
of Physics, Jamia Millia Islamia (A Central
University), New Delhi110025, India
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Paul S, Elizabeth I, Srivastava S, Tawale JS, Chandra P, Barshilia HC, Gupta BK. Epidermal Inspired Flexible Sensor with Buckypaper/PDMS Interfaces for Multimodal and Human Motion Monitoring Applications. ACS OMEGA 2022; 7:37674-37682. [PMID: 36312412 PMCID: PMC9608422 DOI: 10.1021/acsomega.2c04563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/28/2022] [Indexed: 05/17/2023]
Abstract
The advancements in the areas of wearable devices and flexible electronic skin have led to the synthesis of scalable, ultrasensitive sensors to detect and differentiate multimodal stimuli and dynamic human movements. Herein, we reveal a novel architecture of an epidermal sensor fabricated by sandwiching the buckypaper between the layers of poly(dimethylsiloxane) (PDMS). This mechanically robust sensor can be conformally adhered on skin and has the perception capability to detect real-time transient human motions and the multimodal mechanical stimuli of stretching, bending, tapping, and twisting. The sensor has feasibility for real-time health monitoring as it can distinguish a wide range of human physiological activities like breathing, gulping, phonation, pulse monitoring, and finger and wrist bending. This multimodal wearable epidermal sensor possesses an ultrahigh gauge factor (GF) of 9178 with a large stretchability of 56%, significant durability for 5000 stretching-releasing cycles, and a fast response/recovery time of 59/88 ms. We anticipate that this novel, simple, and scalable design of a sensor with outstanding features will pave a new way to consummate the requirements of wearable electronics, flexible touch sensors, and electronic skin.
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Affiliation(s)
- Sharon
J. Paul
- Department
of Chemistry, Institute of Basic Science, Bundelkhand University, Jhansi 284128, Uttar Pradesh, India
- Photonic
Materials Metrology Sub Division, Advanced Materials and Device Metrology
Division, CSIR—National Physical
Laboratory, New Delhi 110012, India
| | - Indu Elizabeth
- Surface
Engineering Division, CSIR—National
Aerospace Laboratories, Bangalore 560017, India
- ,
| | - Shubhda Srivastava
- Photonic
Materials Metrology Sub Division, Advanced Materials and Device Metrology
Division, CSIR—National Physical
Laboratory, New Delhi 110012, India
| | - Jai S. Tawale
- Indian
Reference Materials Division, CSIR—National
Physical Laboratory, New Delhi 110012, India
| | - Prakash Chandra
- Department
of Chemistry, Institute of Basic Science, Bundelkhand University, Jhansi 284128, Uttar Pradesh, India
| | - Harish C. Barshilia
- Surface
Engineering Division, CSIR—National
Aerospace Laboratories, Bangalore 560017, India
| | - Bipin K. Gupta
- Photonic
Materials Metrology Sub Division, Advanced Materials and Device Metrology
Division, CSIR—National Physical
Laboratory, New Delhi 110012, India
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Lee HK, Yoo DH, Jo SE, Choi SJ. Removal of nitrate from radioactive wastewater using magnetic multi-walled carbon nanotubes. PROGRESS IN NUCLEAR ENERGY 2021. [DOI: 10.1016/j.pnucene.2021.103893] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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A Janus porous carbon nanotubes/poly (vinyl alcohol) composite evaporator for efficient solar-driven interfacial water evaporation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118459] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Azar MG, Dodda JM, Bělský P, Šlouf M, Vavruňková V, Kadlec J, Remiš T. Tough and flexible conductive triple network hydrogels based on agarose/polyacrylamide/polyvinyl alcohol and
poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate. POLYM INT 2021. [DOI: 10.1002/pi.6232] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mina Ghafouri Azar
- New Technologies – Research Centre (NTC) University of West Bohemia Pilsen Czech Republic
| | - Jagan Mohan Dodda
- New Technologies – Research Centre (NTC) University of West Bohemia Pilsen Czech Republic
| | - Petr Bělský
- New Technologies – Research Centre (NTC) University of West Bohemia Pilsen Czech Republic
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry CAS Prague Czech Republic
| | - Veronika Vavruňková
- New Technologies – Research Centre (NTC) University of West Bohemia Pilsen Czech Republic
| | - Jaroslav Kadlec
- New Technologies – Research Centre (NTC) University of West Bohemia Pilsen Czech Republic
| | - Tomáš Remiš
- New Technologies – Research Centre (NTC) University of West Bohemia Pilsen Czech Republic
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Antibacterial nanocomposite films of poly(vinyl alcohol) modified with zinc oxide-doped multiwalled carbon nanotubes as food packaging. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03666-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Mehmood A, Khan FSA, Mubarak NM, Tan YH, Karri RR, Khalid M, Walvekar R, Abdullah EC, Nizamuddin S, Mazari SA. Magnetic nanocomposites for sustainable water purification-a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:19563-19588. [PMID: 33651297 DOI: 10.1007/s11356-021-12589-3] [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: 09/25/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
Numerous contaminants in huge amounts are discharged to the environment from various anthropogenic activities. Waterbodies are one of the major receivers of these contaminants. The contaminated water can pose serious threats to humans and animals, by distrubing the ecosystem. In treating the contaminated water, adsorption processes have attained significant maturity due to lower cost, easy operation and environmental friendliness. The adsorption process uses various adsorbent materials and some of emerging adsorbent materials include carbon- and polymer-based magnetic nanocomposites. These hybrid magnetic nanocomposites have attained extensive applications in water treatment technologies due to their magnetic properties as well as combination of unique characteristics of organic and inorganic elements. Carbon- and polymer-related magnetic nanocomposites are more adapted materials for the removal of various kinds of contaminants from waterbodies. These nanocomposites can be produced via different approaches such as filling, pulse-laser irradiation, ball milling, and electro-spinning. This comprehensive review is compiled by reviewing published work of last the latest recent 3 years. The review article extensively focuses on different approaches for producing various carbon- and polymer-based magnetic nanocomposites, their merits and demerits and applications for sustainable water purification. More specifically, use of carbon- and polymer-based magnetic nanocomposites for removal of heavy metal ions and dyes is discussed in detail, critically analyzed and compared with other technologies. In addition, commercial viability in terms of regeneration of adsorbents is also reviewed. Furthermore, the future challenges and prospects in employing magnetic nanocomposites for contaminant removal from various water sources are presented.
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Affiliation(s)
- Ahsan Mehmood
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia
| | - Fahad Saleem Ahmed Khan
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia
| | - Nabisab Mujawar Mubarak
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia.
| | - Yie Hua Tan
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia
| | - Rama Rao Karri
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Gadong, Brunei Darussalam
| | - Mohammad Khalid
- Graphene and Advanced 2D Materials Research Group (GAMRG), School of Engineering and Technology, Sunway University, No. 5, Jalan University, Bandar Sunway, 47500, Petaling Jaya, Selangor, Malaysia
| | - Rashmi Walvekar
- Department of Chemical Engineering, School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia
| | - Ezzat Chan Abdullah
- Department of Chemical Process Engineering, Malaysia-Japan International Institute of Technology (MJIIT) Universiti Teknologi Malaysia (UTM), Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
| | | | - Shaukat Ali Mazari
- Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi, 74800, Pakistan
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Mehmood A, Mubarak NM, Khalid M, Jagadish P, Walvekar R, Abdullah EC. Graphene/PVA buckypaper for strain sensing application. Sci Rep 2020; 10:20106. [PMID: 33208815 PMCID: PMC7675985 DOI: 10.1038/s41598-020-77139-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/16/2020] [Indexed: 01/05/2023] Open
Abstract
Strain sensors in the form of buckypaper (BP) infiltrated with various polymers are considered a viable option for strain sensor applications such as structural health monitoring and human motion detection. Graphene has outstanding properties in terms of strength, heat and current conduction, optics, and many more. However, graphene in the form of BP has not been considered earlier for strain sensing applications. In this work, graphene-based BP infiltrated with polyvinyl alcohol (PVA) was synthesized by vacuum filtration technique and polymer intercalation. First, Graphene oxide (GO) was prepared via treatment with sulphuric acid and nitric acid. Whereas, to obtain high-quality BP, GO was sonicated in ethanol for 20 min with sonication intensity of 60%. FTIR studies confirmed the oxygenated groups on the surface of GO while the dispersion characteristics were validated using zeta potential analysis. The nanocomposite was synthesized by varying BP and PVA concentrations. Mechanical and electrical properties were measured using a computerized tensile testing machine, two probe method, and hall effect, respectively. The electrical conducting properties of the nanocomposites decreased with increasing PVA content; likewise, electron mobility also decreased while electrical resistance increased. The optimization study reports the highest mechanical properties such as tensile strength, Young’s Modulus, and elongation at break of 200.55 MPa, 6.59 GPa, and 6.79%, respectively. Finally, electrochemical testing in a strain range of ε ~ 4% also testifies superior strain sensing properties of 60 wt% graphene BP/PVA with a demonstration of repeatability, accuracy, and preciseness for five loading and unloading cycles with a gauge factor of 1.33. Thus, results prove the usefulness of the nanocomposite for commercial and industrial applications.
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Affiliation(s)
- Ahsan Mehmood
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Kuching, Sarawak, Malaysia
| | - N M Mubarak
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Kuching, Sarawak, Malaysia.
| | - Mohammad Khalid
- Graphene & Advanced 2D Materials Research Group (GAMRG), School of Science and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, 47500, Subang Jaya, Selangor, Malaysia
| | - Priyanka Jagadish
- Graphene & Advanced 2D Materials Research Group (GAMRG), School of Science and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, 47500, Subang Jaya, Selangor, Malaysia
| | - Rashmi Walvekar
- School of Energy and Chemical Engineering, Department of Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia
| | - E C Abdullah
- Department of Chemical Process Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia (UTM), Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
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12
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Lau YJ, Karri RR, Mubarak NM, Lau SY, Chua HB, Khalid M, Jagadish P, Abdullah EC. Removal of dye using peroxidase-immobilized Buckypaper/polyvinyl alcohol membrane in a multi-stage filtration column via RSM and ANFIS. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:40121-40134. [PMID: 32656753 DOI: 10.1007/s11356-020-10045-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Abstract
The feasibility and performance of Jicama peroxidase (JP) immobilized Buckypaper/polyvinyl alcohol (BP/PVA) membrane for methylene blue (MB) dye removal was investigated in a customized multi-stage filtration column under batch recycle mode. The effect of independent variables, such as influent flow rate, ratio of H2O2/MB dye concentration, and contact time on the dye removal efficiency, were investigated using response surface methodology (RSM). To capture the inherent characteristics and better predict the removal efficiency, a data-driven adaptive neuro-fuzzy inference system (ANFIS) is implemented. Results indicated that the optimum dye removal efficiency of 99.7% was achieved at a flow rate of 2 mL/min, 75:1 ratio of H2O2/dye concentration with contact time of 183 min. The model predictions of ANFIS are significantly good compared with RSM, thus resulting in R2 values of 0.9912 and 0.9775, respectively. The enzymatic kinetic parameters, Km and Vmax, were evaluated, which are 1.98 mg/L and 0.0219 mg/L/min, respectively. Results showed that JP-immobilized BP/PVA nanocomposite membrane can be promising and cost-effective biotechnology for the practical application in the treatment of industrial dye effluents.
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Affiliation(s)
- Yien Jun Lau
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia
| | - Rama Rao Karri
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei (UTB), Gadong, Brunei Darussalam
| | - Nabisab Mujawar Mubarak
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia.
| | - Sie Yon Lau
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia
| | - Han Bing Chua
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia
| | - Mohammad Khalid
- Graphene & Advanced 2D Materials Research Group (GAMRG), School of Science and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, 47500, Subang Jaya, Selangor, Malaysia
| | - Priyanka Jagadish
- Graphene & Advanced 2D Materials Research Group (GAMRG), School of Science and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, 47500, Subang Jaya, Selangor, Malaysia
| | - Ezzat Chan Abdullah
- Department of Chemical Process Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia (UTM), Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
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Akhtar I, Chang SH. Highly aligned carbon nanotubes and their sensor applications. NANOSCALE 2020; 12:21447-21458. [PMID: 33084708 DOI: 10.1039/d0nr05951j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Flexible electronics comprising carbon nanotube (CNT) membranes and polymer composites are used in diverse applications, including health monitoring. Devices prepared using such electronics need to exhibit acceptable sensitivity at high strains, with the advantage of negligible hysteresis. Herein, we report a simple, physically robust method to fabricate a highly sensitive and stretchable sensor that enables the detection of pressure, strain, and human activity with facial expressions based on the highly aligned carbon nanotubes embedded in polydimethylsiloxane (PDMS). The aligned CNT network in PDMS modulates the electron conduction path in a unidirectional manner and provides multimodal mechanical sensing ability with a wide sensing range and high sensitivity. The highly aligned CNT sensor demonstrates high-pressure sensitivity (1.29 kPa-1), excellent stability and repeatability (over 10 000 cycles) with negligible hysteresis, and a good strain sensitivity over a wide range (up to 65%) with a good linear response. We confirmed the applicability of the sensor to detect small signals, such as heartbeat and pulse rate, expressions, and voice recognition, and that it could distinguish between various human motions with a very short recovery time of approximately 50 ms.
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Affiliation(s)
- Imtisal Akhtar
- Department of Mechanical Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 156-756, Republic of Korea.
| | - Seung-Hwan Chang
- Department of Mechanical Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 156-756, Republic of Korea.
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14
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Mullani SB, Dhodamani AG, Shellikeri A, Mullani NB, Tawade AK, Tayade SN, Biscay J, Dennany L, Delekar SD. Structural refinement and electrochemical properties of one dimensional (ZnO NRs) 1-x(CNs) x functional hybrids for serotonin sensing studies. Sci Rep 2020; 10:15955. [PMID: 32994507 PMCID: PMC7524834 DOI: 10.1038/s41598-020-72756-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 08/10/2020] [Indexed: 12/28/2022] Open
Abstract
Herein, the efficient serotonin (5-HT) sensing studies have been conducted using the (ZnO NRs)1-x(CNs)x nanocomposites (NCs) having appropriate structural and electrochemical properties. Initially, the different compositions of ZnO nanorods (NRs), with varying content of carbon nanostructures (CNs=MWCNTs and RGO), are prepared using simple in-situ wet chemical method and thereafter these NCs have been characterized for physico-chemical properties in correlation to the 5-HT sensing activity. XRD Rietveld refinement studies reveal the hexagonal Wurtzite ZnO NRs oriented in (101) direction with space group 'P63mc' and both orientation as well as phase of ZnO NRs are also retained in the NCs due to the small content of CNs. The interconnectivity between the ZnO NRs with CNs through different functional moieties is also studied using FTIR analysis; while phases of the constituents are confirmed through Raman analysis. FESEM images of the bare/NCs show hexagonal shaped rods with higher aspect ratio (4.87) to that of others. BET analysis and EIS measurements reveal the higher surface area (97.895 m2/g), lower charge transfer resistance (16.2 kΩ) for the ZCNT 0.1 NCs to that of other NCs or bare material. Thereafter, the prepared NCs are deposited on the screen printed carbon electrode (SPCE) using chitosan as cross-linked agent for 5-HT sensing studies; conducted through cyclic voltammetry (CV) and square wave voltammetry (SWV) measurements. Among the various composites, ZCNT0.1 NCs based electrodes exhibit higher sensing activity towards 5-HT in accordance to its higher surface area, lower particle size and lower charge transfer resistance. SWV measurements provide a wide linear response range (7.5-300 μM); lower limit of detection (0.66 μM), excellent limit of quantification (2.19 μM) and good reproducibility to ZCNT 0.1 NCs as compared to others for 5-HT sensing studies.
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Affiliation(s)
- Sajid B Mullani
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Ananta G Dhodamani
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Annadanesh Shellikeri
- Department of Electrical and Computer Engineering, Florida A&M University-Florida State University, Tallahassee, FL, 32310-6046, USA
- Aero-Propulsion, Mechatronics and Energy Centre, Florida State University, Tallahassee, FL, 32310-6046, USA
| | - Navaj B Mullani
- Department of Advanced Materials and Chemical Engineering, Hanyang University (ERICA), Ansan, 15588, South Korea
| | - Anita K Tawade
- School of Nanoscience and Biotechnology, Shivaji University, Kolhapur, 416004, MS, India
| | - Shivaji N Tayade
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Julien Biscay
- Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Lynn Dennany
- Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Sagar D Delekar
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India.
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15
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Bhinder J, Agnihotri PK. Poly(vinyl alcohol) foams reinforced with carbon nanotubes for stapedial annular ligament applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.48736] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jasdeep Bhinder
- Mechanics of Advanced Material Laboratory (MAdMatLab), Department of Mechanical EngineeringIndian Institute of Technology Ropar Rupnagar 140001 Punjab India
| | - Prabhat K. Agnihotri
- Mechanics of Advanced Material Laboratory (MAdMatLab), Department of Mechanical EngineeringIndian Institute of Technology Ropar Rupnagar 140001 Punjab India
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16
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Abstract
A fully inkjet-printed strain sensor based on carbon nanotubes (CNTs) was fabricated in this study for microstrain and microcrack detection. Carbon nanotubes and silver films were used as the sensing layer and conductive layer, respectively. Inkjet-printed CNTs easily undergo agglomeration due to van der Waals forces between CNTs, resulting in uneven films. The uniformity of CNT film affects the electrical and mechanical properties. Multi-pass printing and pattern rotation provided precise quantities of sensing materials, enabling the realization of uniform CNT films and stable resistance. Three strain sensors printed eight-layer CNT film by unidirectional printing, rotated by 180° and 90° were compared. The low density on one side of eight-layer CNT film by unidirectional printing results in more disconnection and poor connectivity with the silver film, thereby, significantly increasing the resistance. For 180° rotation eight-layer strain sensors, lower sensitivity and smaller measured range were found because strain was applied to the uneven CNT film resulting in non-uniform strain distribution. Lower resistance and better strain sensitivity was obtained for eight-layer strain sensor with 90° rotation because of uniform film. Given the uniform surface morphology and saturated sheet resistance of the 20-layer CNT film, the strain performance of the 20-layer CNT strain sensor was also examined. Excluding the permanent destruction of the first strain, 0.76% and 1.05% responses were obtained for the 8- and 20-layer strain sensors under strain between 0% and 3128 µε, respectively, which demonstrates the high reproducibility and recoverability of the sensor. The gauge factor (GF) of 20-layer strain sensor was found to be 2.77 under strain from 71 to 3128 µε, which is higher than eight-layer strain sensor (GF = 1.93) due to the uniform surface morphology and stable resistance. The strain sensors exhibited a highly linear and reversible behavior under strain of 71 to 3128 µε, so that the microstrain level could be clearly distinguished. The technology of the fully inkjet-printed CNT-based microstrain sensor provides high reproducibility, stability, and rapid hardness detection.
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17
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Danish M, Luo S. A New Route to Enhance the Packing Density of Buckypaper for Superior Piezoresistive Sensor Characteristics. SENSORS (BASEL, SWITZERLAND) 2020; 20:E2904. [PMID: 32443850 PMCID: PMC7287720 DOI: 10.3390/s20102904] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/07/2020] [Accepted: 05/14/2020] [Indexed: 11/16/2022]
Abstract
Transforming individual carbon nanotubes (CNTs) into bulk form is necessary for the utilization of the extraordinary properties of CNTs in sensor applications. Individual CNTs are randomly arranged when transformed into the bulk structure in the form of buckypaper. The random arrangement has many pores among individual CNTs, which can be treated as gaps or defects contributing to the degradation of CNT properties in the bulk form. A novel technique of filling these gaps is successfully developed in this study and termed as a gap-filling technique (GFT). The GFT is implemented on SWCNT-based buckypaper in which the pores are filled through small-size MWCNTs, resulting in a ~45.9% improvement in packing density. The GFT is validated through the analysis of packing density along with characterization and surface morphological study of buckypaper using Raman spectrum, particle size analysis, scanning electron microscopy, atomic force microscopy and optical microscopy. The sensor characteristics parameters of buckypaper are investigated using a dynamic mechanical analyzer attached with a digital multimeter. The percentage improvement in the electrical conductivity, tensile gauge factor, tensile strength and failure strain of a GFT-implemented buckypaper sensor are calculated as 4.11 ± 0.61, 44.81 ± 1.72, 49.82 ± 8.21 and 113.36 ± 28.74, respectively.
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Affiliation(s)
| | - Sida Luo
- School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China;
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18
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Development of Pressure-Responsive PolyPropylene and Biochar-Based Materials. MICROMACHINES 2020; 11:mi11040339. [PMID: 32218104 PMCID: PMC7230729 DOI: 10.3390/mi11040339] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/23/2020] [Accepted: 03/23/2020] [Indexed: 11/16/2022]
Abstract
In this research paper, we reported the synthesis of biochar-based composites using biochar derived from exhausted tea leaves and polypropylene. The resulting materials were deeply characterized investigating mechanical (dynamic mechanical thermal analysis), thermal (thermogravimetrical analysis and differential scanning calorimetry), morphological (field emission scanning microscopy) and electrical properties vs. temperature. Furthermore, electrical conductivity was studied for a wide range of pressures showing an irreversible plastic deformation. An increment of one order of magnitude in the conductivity was observed in the case of 40 wt% biochar loading, reaching a value of 0.2 S/m. The material produced exhibited the properties of an irreversible pressure sensor.
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19
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Wang Y, Li M, Gu Y, Wang S, Li Q, Zhang Z. Mechanical and electrical enhancement of super-aligned carbon nanotube film by organic and inorganic doping. NANOTECHNOLOGY 2020; 31:075601. [PMID: 31645024 DOI: 10.1088/1361-6528/ab50a4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Inspired by the chemical and physical doping methods on traditional composites, bismaleimide (BMI) resin and graphene oxide (GO) are selected for doping modification of carbon nanotube (CNT) film in this paper. Based on the diverse enhancement effects of CNT film, the mechanisms and characteristics of resin crosslink and inorganic doping are compared. Due to the crosslinking network of resin, BMI is more beneficial for cooperative deformation and mechanical enhancement, while GO doping shows more advantages in improving electrical performance because of the numerous functional groups on the surface, and good intrinsic properties. With the appropriate doping method and optimized process conditions, the tensile property and electrical conductivity of CNT film can be improved by over 150% and 200% (e.g., tensile strength and modulus of 2990 MPa and 149 GPa, and electrical conductivity of 38 700 S m-1).
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Affiliation(s)
- Yanjie Wang
- School of Materials Science and Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China. School of Aeronautic Science and Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China
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20
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Mullani SB, Tawade AK, Tayade SN, Sharma KKK, Deshmukh SP, Mullani NB, Mali SS, Hong CK, Swamy BEK, Delekar SD. Synthesis of Ni 2+ ion doped ZnO–MWCNTs nanocomposites using an in situ sol–gel method: an ultra sensitive non-enzymatic uric acid sensing electrode material. RSC Adv 2020; 10:36949-36961. [PMID: 35521260 PMCID: PMC9057054 DOI: 10.1039/d0ra06290a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 09/30/2020] [Indexed: 12/25/2022] Open
Abstract
Nickel (Ni2+) ion doped zinc oxide-multi-wall carbon nanotubes (NZC) with different composition ratios of MWCNTs (from 0.01 to 0.1 wt%) are synthesized through an in situ sol–gel method. The synthesized NZC nanocomposites (NCs) are used as electrode materials with glassy carbon electrodes (GCEs) for electrochemical detection of uric acid (UA). The cyclic voltammogram of the representative NZC 0.1 modified GCE (NZC 0.1/GCE) revealed the highest electrochemical sensing activity towards the oxidation of UA at 0.37 V in 0.2 M phosphate buffer solution (PBS) having pH 7.4 ± 0.02. The limit of detection (LOD) and limit of quantification (LOQ) for the NZC 0.1/GCE are determined to be 5.72 nM and 19.00 nM (S/N = 3) respectively, which is the lowest compared to the literature values reported for enzymatic and non-enzymatic detection techniques. The synergistic effect of NZC 0.1 NCs is proposed as one of the factors for the enhanced electrochemical oxidation of UA complemented by the phase, lattice parameters, functional groups, morphology, elemental compositions, types of bonding and specific surface area with pore size ascertained using various techniques. The synthesized NZC 0.1 NCs are further proposed as selective electrode materials for the electrochemical detection of UA as authenticated further by performing interference tests with other metabolites such as ascorbic acid (AA), dopamine (DA) and d-glucose. The optimized electrochemical studies are further adopted for sensing of UA from human excretion samples using NZC 0.1 NCs. Nickel (Ni2+) ion doped zinc oxide-multi-wall carbon nanotubes (NZC) with different composition ratios of MWCNTs (from 0.01 to 0.1 wt%) are synthesized through an in situ sol–gel method.![]()
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Affiliation(s)
| | - Anita K. Tawade
- School of Nanoscience and Biotechnology
- Shivaji University
- Kolhapur 416004
- India
| | | | | | - Shamkumar P. Deshmukh
- Department of Chemistry
- Shivaji University
- Kolhapur 416004
- India
- Department of Chemistry
| | - Navaj B. Mullani
- Department of Advanced Materials and Chemical Engineering
- Hanyang University
- Ansan
- 15588 South Korea
| | - Sawanta S. Mali
- Department of Advanced Chemical Engineering
- Chonnam National University
- Gwangju
- 61186 South Korea
| | - Chang Kook Hong
- Department of Advanced Chemical Engineering
- Chonnam National University
- Gwangju
- 61186 South Korea
| | - B. E. Kumara Swamy
- Department of P.G. Studies and Research in Industrial Chemistry
- Kuvempu University
- Shimoga
- India
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21
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Wong CY, Wong WY, Loh KS, Daud WRW, Lim KL, Khalid M, Walvekar R. Development of Poly(Vinyl Alcohol)-Based Polymers as Proton Exchange Membranes and Challenges in Fuel Cell Application: A Review. POLYM REV 2019. [DOI: 10.1080/15583724.2019.1641514] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Chun Yik Wong
- Fuel Cell Institute, Universiti Kebangsaan Malaysia, Selangor, Malaysia
| | - Wai Yin Wong
- Fuel Cell Institute, Universiti Kebangsaan Malaysia, Selangor, Malaysia
| | - Kee Shyuan Loh
- Fuel Cell Institute, Universiti Kebangsaan Malaysia, Selangor, Malaysia
| | | | - Kean Long Lim
- Fuel Cell Institute, Universiti Kebangsaan Malaysia, Selangor, Malaysia
| | - Mohammad Khalid
- Graphene & Advanced 2D Materials Research Group (GAMRG), Sunway University, Selangor, Malaysia
| | - Rashmi Walvekar
- School of Engineering, Faculty of Innovation and Technology, Taylor’s University Lakeside, Campus, Selangor, Malaysia
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22
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Magendran SS, Khan FSA, Mubarak N, Khalid M, Walvekar R, Abdullah E, Nizamuddin S, Karri RR. Synthesis of organic phase change materials by using carbon nanotubes as filler material. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.nanoso.2019.100361] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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23
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Walgama C, Pathiranage A, Akinwale M, Montealegre R, Niroula J, Echeverria E, McIlroy DN, Harriman TA, Lucca DA, Krishnan S. Buckypaper–Bilirubin Oxidase Biointerface for Electrocatalytic Applications: Buckypaper Thickness. ACS APPLIED BIO MATERIALS 2019; 2:2229-2236. [DOI: 10.1021/acsabm.9b00189] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Charuksha Walgama
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Anuruddha Pathiranage
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Mayowa Akinwale
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Roberto Montealegre
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Jinesh Niroula
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Elena Echeverria
- Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - David N. McIlroy
- Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Tres A. Harriman
- School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Don A. Lucca
- School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Sadagopan Krishnan
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
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24
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Immobilization of Peroxidase on Functionalized MWCNTs-Buckypaper/Polyvinyl alcohol Nanocomposite Membrane. Sci Rep 2019; 9:2215. [PMID: 30778111 PMCID: PMC6379398 DOI: 10.1038/s41598-019-39621-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/29/2019] [Indexed: 11/22/2022] Open
Abstract
Surface modified Multi-walled carbon nanotubes (MWCNTs) Buckypaper/Polyvinyl Alcohol (BP/PVA) composite membrane was synthesized and utilized as support material for immobilization of Jicama peroxidase (JP). JP was successfully immobilized on the BP/PVA membrane via covalent bonding by using glutaraldehyde. The immobilization efficiency was optimized using response surface methodology (RSM) with the face-centered central composite design (FCCCD) model. The optimum enzyme immobilization efficiency was achieved at pH 6, with initial enzyme loading of 0.13 U/mL and immobilization time of 130 min. The results of BP/PVA membrane showed excellent performance in immobilization of JP with high enzyme loading of 217 mg/g and immobilization efficiency of 81.74%. The immobilized system exhibited significantly improved operational stability under various parameters, such as pH, temperature, thermal and storage stabilities when compared with free enzyme. The effective binding of peroxidase on the surface of the BP/PVA membrane was evaluated and confirmed by Field emission scanning electron microscopy (FESEM) coupled with Energy Dispersive X-Ray Spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR) and Thermogravimetric Analysis (TGA). This work reports the characterization results and performances of the surface modified BP/PVA membrane for peroxidase immobilization. The superior properties of JP-immobilized BP/PVA membrane make it promising new-generation nanomaterials for industrial applications.
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25
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Ma S, Zuo P, Zhang H, Yu Z, Cui C, He M, Yin G. Iodine-doped sulfurized polyacrylonitrile with enhanced electrochemical performance for room-temperature sodium/potassium sulfur batteries. Chem Commun (Camb) 2019; 55:5267-5270. [DOI: 10.1039/c9cc01612k] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Iodine-doped sulfurized polyacrylonitrile with high conductivity displays an unprecedented capacity for RT-Na/S and RT-K/S batteries operated in ester-based electrolytes.
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Affiliation(s)
- Shaobo Ma
- MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Pengjian Zuo
- MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Han Zhang
- State Key Laboratory of Power Equipment & System Security and New Technology
- Chongqing University
- Chongqing 400044
- China
| | - Zhenjiang Yu
- MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Can Cui
- MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Mengxue He
- MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Geping Yin
- MITT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- Harbin Institute of Technology
- Harbin 150001
- China
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26
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Mallakpour S, Azimi F. Using sonochemistry for the production of poly(vinyl alcohol)/MWCNT–vitamin B1 nanocomposites: exploration of morphology, thermal and mechanical properties. NEW J CHEM 2019. [DOI: 10.1039/c9nj00116f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Functionalized MWCNTs with vitamin B1 as a green material were applied for the enhancement of poly(vinyl alcohol) properties.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory
- Department of Chemistry, Isfahan University of Technology
- Isfahan 84156-83111
- Islamic Republic of Iran
- Research Institute for Nanotechnology and Advanced Materials
| | - Faezeh Azimi
- Chemistry Group
- Pardis College
- Isfahan University of Technology
- Isfahan 84156-83111
- Islamic Republic of Iran
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