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Umar A, Kumar R, More PS, Ibrahim AA, Algadi H, Alhamami MA, Baskoutas S, Akbar S. Polyethylene glycol embedded reduced graphene oxide supramolecular assemblies for enhanced room-temperature gas sensors. ENVIRONMENTAL RESEARCH 2023; 236:116793. [PMID: 37532212 DOI: 10.1016/j.envres.2023.116793] [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: 03/08/2023] [Revised: 07/10/2023] [Accepted: 07/28/2023] [Indexed: 08/04/2023]
Abstract
Herein, we present the gas-dependent electrical properties of a reduced graphene oxide nanocomposite. The reduced graphene oxide (rGO) was synthesized by reducing GO with sodium borohydride (NaBH4). As-synthesized rGO was dispersed in DI water containing 1, 2, 3, 4, and 5 wt% polyethylene glycol (PEG) to prepare PEG-rGO supramolecular assemblies. The successful preparation of supramolecular assemblies was verified by their characterization using XRD, FESEM, EDS, TEM, FTIR, and Raman spectroscopy. At room temperature, the gas-dependent electrical properties of these supramolecular assemblies were investigated. The results showed that sensors composed of PEG-rGO supramolecular assemblies performed better against benzene and methanol at 3% and 4% PEG, respectively. However, high selectivity and a wide range of activation energies (∼1.64-1.91 eV) were observed for H2 gas for 4% PEG-modified supramolecular assemblies. The PEG-rGO supramolecular assemblies may be an excellent candidate for constructing ultrahigh-performance gas sensors for a variety of applications due to their high sensitivity and selectivity.
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Affiliation(s)
- Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts, Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia; Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA.
| | - Rajesh Kumar
- Department of Chemistry, Jagdish Chandra DAV College, Dasuya, Punjab, 144205, India
| | - Pravin S More
- Nano Material Application Laboratory, Department of Physics, The Institute of Science, Dr. Homi Bhabha State University, 15, Madam Cama Road, Fort, Mumbai, India
| | - Ahmed A Ibrahim
- Department of Chemistry, Faculty of Science and Arts, Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia
| | - Hassan Algadi
- Department of Electrical Engineering, College of Engineering, Najran University, Najran, 11001, Kingdom of Saudi Arabia
| | - Mohsen A Alhamami
- Department of Chemistry, Faculty of Science and Arts, Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia
| | - Sotirios Baskoutas
- Department of Materials Science, University of Patras, 26500, Patras, Greece
| | - Sheikh Akbar
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA
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Basuny BN, Kospa DA, Ibrahim AA, Gebreil A. Stable polyethylene glycol/biochar composite as a cost-effective photothermal absorber for 24 hours of steam and electricity cogeneration. RSC Adv 2023; 13:31077-31091. [PMID: 37881767 PMCID: PMC10595053 DOI: 10.1039/d3ra06028d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023] Open
Abstract
Seawater desalination powered by solar energy is the most environmentally and economical solution in responding to the global water and energy crisis. However, solar desalination has been negatively impacted by intermittent sun radiation that alternates between day and night. In this study, sugarcane bagasse (SCB) was recycled via the pyrolysis process to biochar as a cost-effective solar absorber. Besides, polyethylene glycol (PEG) as a phase change material was encapsulated in the abundant pore structure of biochar to store the thermal energy for 24 hours of continuous steam generation. The BDB/1.5 PEG evaporator exhibited an evaporation rate of 2.11 kg m-2 h-1 (98.1% efficiency) under 1 sun irradiation. Additionally, the BDB/1.5 PEG evaporator incorporated by the TEC1-12706 module for continuous steam and electricity generation with a power density of 320.41 mW m-2. Moreover, 10 continuous hours of evaporation were applied to the composite demonstrating outstanding stability. The composite exhibited high water purification efficiency through solar desalination due to the abundant functional groups on the biochar surface. Finally, the resulting low-cost and highly efficient PCM-based absorber can be used on a wide scale to produce fresh water and energy.
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Affiliation(s)
- Belal N Basuny
- Department of Chemistry, Faculty of Science, Mansoura University Al-Mansoura 35516 Egypt
| | - Doaa A Kospa
- Department of Chemistry, Faculty of Science, Mansoura University Al-Mansoura 35516 Egypt
| | - Amr Awad Ibrahim
- Department of Chemistry, Faculty of Science, Mansoura University Al-Mansoura 35516 Egypt
| | - Ahmed Gebreil
- Nile Higher Institutes of Engineering and Technology El-Mansoura Egypt
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Makvandi F, Alijani H, Taghavi M, Rastegarzadeh S. High-performance removal of phenol from aqueous solutions using EG- and PEG-functionalized biochar: equilibrium, kinetic and thermodynamic study with optimization by response surface methodology (RSM). RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04935-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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4
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Hu F, Lu H, Xu G, Lv L, Chen L, Shao Z. Carbon quantum dots improve the mechanical behavior of polyvinyl alcohol/polyethylene glycol hydrogel. J Appl Polym Sci 2022. [DOI: 10.1002/app.52805] [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)
- Feng Hu
- Group of Mechanical and Biomedical Engineering Xi'an Key Laboratory of Modern Intelligent Textile Equipment, College of Mechanical & Electronic Engineering, Xi'an Polytechnic University Xi'an People's Republic of China
| | - Hailin Lu
- Group of Mechanical and Biomedical Engineering Xi'an Key Laboratory of Modern Intelligent Textile Equipment, College of Mechanical & Electronic Engineering, Xi'an Polytechnic University Xi'an People's Republic of China
- Taizhou Medical New & Hi‐tech Industrial Development Zone Taizhou People's Republic of China
| | - Guangshen Xu
- Group of Mechanical and Biomedical Engineering Xi'an Key Laboratory of Modern Intelligent Textile Equipment, College of Mechanical & Electronic Engineering, Xi'an Polytechnic University Xi'an People's Republic of China
| | - Leifeng Lv
- Department of Orthopedics The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University Xi'an People's Republic of China
| | - Lu Chen
- Group of Mechanical and Biomedical Engineering Xi'an Key Laboratory of Modern Intelligent Textile Equipment, College of Mechanical & Electronic Engineering, Xi'an Polytechnic University Xi'an People's Republic of China
| | - Zhonglei Shao
- Faculty of Engineering, Royal College University of Strathclyde Glasgow UK
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Behrouz T, Behrooz S, Sarkhosh H, Nourany M. A novel multi‐functional model thermoset and
PDA
‐coated
PU
nanocomposite based on graphene and an amphiphilic block copolymer. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5703] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Toktam Behrouz
- Polymer Engineering and Color Technology Amirkabir University of Technology Tehran Iran
| | - Shabnam Behrooz
- Polymer Engineering and Color Technology Amirkabir University of Technology Tehran Iran
| | - Hadi Sarkhosh
- Biomedical Engineering Amirkabir University of Technology Tehran Iran
| | - Mohammad Nourany
- Polymer Engineering and Color Technology Amirkabir University of Technology Tehran Iran
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Influence of the Micro-Nanostructuring of Titanium Dioxide Films on the Photocatalytic Degradation of Formic Acid under UV Illumination. NANOMATERIALS 2022; 12:nano12061008. [PMID: 35335821 PMCID: PMC8953088 DOI: 10.3390/nano12061008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/08/2022] [Accepted: 03/15/2022] [Indexed: 12/04/2022]
Abstract
Surface micro-nanostructuring can provide new functionalities and properties to coatings. For example, it can improve the absorption efficiency, hydrophobicity and/or tribology properties. In this context, we studied the influence of micro-nanostructuring on the photocatalytic efficiency of sol-gel TiO2 coatings during formic acid degradation under UV illumination. The micro-nanostructuring was performed using the UV illumination of microspheres deposited on a photopatternable sol-gel layer, leading to a hexagonal arrangement of micropillars after development. The structures and coatings were characterized using Raman spectroscopy, ellipsometry, atomic force microscopy and scanning electron microscopy. When the sol-gel TiO2 films were unstructured and untreated at 500 °C, their effect on formic acid’s degradation under UV light was negligible. However, when the films were annealed at 500 °C, they crystallized in the anatase phase and affected the degradation of formic acid under UV light, also depending on the thickness of the layer. Finally, we demonstrated that surface micro-nanostructuring in the form of nanopillars can significantly increase the photocatalytic efficiency of a coating during the degradation of formic acid under UV light.
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Ghosh S, Chatterjee K. Poly(Ethylene Glycol) Functionalized Graphene Oxide in Tissue Engineering: A Review on Recent Advances. Int J Nanomedicine 2020; 15:5991-6006. [PMID: 33192060 PMCID: PMC7656781 DOI: 10.2147/ijn.s249717] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022] Open
Abstract
Owing to the unique physical, chemical, mechanical and electrical properties, graphene and its derivatives have been extensively researched for diverse biomedical applications including in tissue engineering since the past decade. Tunable chemical functionalities of graphene oxide (GO), a graphene derivative, allow easy surface functionalization. Functionalization of GO with poly(ethylene glycol) (PEG) (PEG-GO) has received significant attention as it offers superior solubility, stability, and biocompatibility. Besides being an attractive candidate for drug delivery, PEG-GO can aid in the attachment, proliferation, and differentiation of stem cells, thereby augmenting tissue engineering. PEG-GO has shown excellent antibacterial efficacy, which could be an added advantage to minimize implant-associated infections. This review describes the synthesis techniques, properties, and biological potential of PEG-GO towards mammalian and bacterial cells. Studies wherein these nanomaterials have been explored for engineering various tissues are reviewed along with future opportunities in this field.
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Affiliation(s)
- Santanu Ghosh
- Department of Materials Engineering, Indian Institute of Science, Bangalore, India
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science, Bangalore, India
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Niu M, Wang H, Li J, Chen H, Li L, Yang H, Liu X, Chen Z, Liu H, Chen J. Polyethylene glycol grafted with carboxylated graphene oxide as a novel interface modifier for polylactic acid/graphene nanocomposites. ROYAL SOCIETY OPEN SCIENCE 2020; 7:192154. [PMID: 32874611 PMCID: PMC7428252 DOI: 10.1098/rsos.192154] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Strength and toughness are both of great importance for the application of polylactic acid (PLA). Unfortunately, these two properties are often contradictory. In this work, an effective and practical strategy is proposed by using carboxylated graphene oxide (GC) grafted with polyethylene glycol (PEG), i.e. GC-g-PEG. The synthesis procedure of GC-g-PEG is firstly optimized. Then, a series of PLA nanocomposites were prepared by the melt blending method via masterbatch. In comparison to that achieved over pure PLA, these nanocomposites are of higher crystallinity, thermal stability and mechanical strength. This is mainly attributed to well-tailored interface and good dispersion. Especially, while retaining the tensile strength of the original PLA, the elongation at break increases by seven times by adding 0.3 wt% GC-g-PEG.
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Affiliation(s)
- Mingjun Niu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Hao Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Jing Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Hongyan Chen
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Lin Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Huige Yang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Xuying Liu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Zhihao Chen
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, Henan, People's Republic of China
| | - Hongzhi Liu
- School of Chemical and Biological Engineering, NingboTech University, No. 1 Xuefu Road, Ningbo 315100, People's Republic of China
| | - Jinzhou Chen
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, People's Republic of China
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Wang G, Raju R, Cho K, Wong S, Prusty BG, Stenzel MH. 3D printed nanocomposites using polymer grafted graphene oxide prepared by multicomponent Passerini reaction. Polym Chem 2020. [DOI: 10.1039/d0py01286f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surface of commercial graphene oxide was modified with polymers using Passerini reaction, which enhances the compatibility between nanoparticles and 3D printing resin.
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Affiliation(s)
- Guannan Wang
- School of Chemistry
- University of New South Wales
- Sydney
- Australia
| | - Raju Raju
- School of Mechanical and Manufacturing Engineering
- University of New South Wales
- Sydney
- Australia
| | - Kiho Cho
- School of Mechanical and Manufacturing Engineering
- University of New South Wales
- Sydney
- Australia
| | - Sandy Wong
- School of Chemistry
- University of New South Wales
- Sydney
- Australia
| | - B. Gangadhara Prusty
- School of Mechanical and Manufacturing Engineering
- University of New South Wales
- Sydney
- Australia
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