1
|
Kumar A, Thomas A, Arora HS. Single-step, in-situfabrication of flower-like NiCuMn hybrid oxyhydroxide electrodes for enhanced supercapacitor performance. NANOTECHNOLOGY 2024; 35:345403. [PMID: 38815559 DOI: 10.1088/1361-6528/ad5209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/30/2024] [Indexed: 06/01/2024]
Abstract
The rational design of highly active and low-cost electrode material is very promising for energy storage applications. The development of supercapacitors with high energy/power density is an imperative and challenging research objective. Herein, we report a highly facile synthesis approach for developing unique nano-porous hybrid NiCuMn oxyhydroxide architecture with remarkable electrochemical energy storage characteristics. The process involves dealloying of Ni15Cu15Mn70alloy in an oxygen rich environment, resulting in a uniform 3-dimensional flower like morphology. The dealloyed electrode demonstrates ultra-high specific capacitance of 4110 F cm-3at a high current density of 20 mA cm-2. A symmetric device exhibits a high volumetric capacitance of 365 F cm-3at a current density of 10 mA cm-2with a large potential window of 1.7 V. Even at very high-power density of 850 W l-1, the device exhibits a high energy density of 146 Wh l-1along with remarkable cyclic stability of 95.4% after 10 000 cycles. The superior performance of nano-porous hybrid NiCuMn oxyhydroxide architecture was attributed to its unique microstructure that provides high surface area, and marginal internal resistance ensuring rapid charge transport.
Collapse
Affiliation(s)
- Arunesh Kumar
- Surface Science and Tribology Lab, Department of Mechanical Engineering, Shiv Nadar Institution of Eminence Deemed to be University, Noida 201310, India
| | - Arpit Thomas
- Surface Science and Tribology Lab, Department of Mechanical Engineering, Shiv Nadar Institution of Eminence Deemed to be University, Noida 201310, India
| | - Harpreet Singh Arora
- Surface Science and Tribology Lab, Department of Mechanical Engineering, Shiv Nadar Institution of Eminence Deemed to be University, Noida 201310, India
| |
Collapse
|
2
|
Lv S, Cheng Z, Chi Y, Wang H, Chu X, Zhao Y, Wu B, Wang R, Zhang Z, Wang C, Yang J, Yang X. Facile Route to Achieve a Hierarchical CuO/Nickel-Cobalt-Sulfide Electrode for Energy Storage. MICROMACHINES 2023; 14:2095. [PMID: 38004952 PMCID: PMC10672988 DOI: 10.3390/mi14112095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023]
Abstract
Herein, a novel self-supporting CuO/nickel-cobalt-sulfide (NCS) electrode was designed in a two-step electrodeposition technique followed by a calcination process. Three-dimensional copper foam (CF) was exploited as the current collector and spontaneous source for the in situ preparation of the CuO nanostructures, which ensured sufficient deposition space for the subsequent NCS layer, thus forming abundant electrochemical active sites. Such a hierarchical structure is conducive to providing a smooth path for promoting electronic transmission. Therefore, the optimized CuO/NCS electrode exhibits outstanding energy storage capability with extremely superior specific capacitance (Cs) of 7.08 F cm-2 at 4 mA cm-2 and coulombic efficiency of up to 94.83%, as well as excellent cycling stability with capacitance retention of 83.33% after 5000 cycles. The results presented in this work extend our horizons to fabricate novel hierarchical structured electrodes applied to energy storage devices.
Collapse
Affiliation(s)
- Sa Lv
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| | | | | | | | | | | | | | | | | | | | | | - Xiaotian Yang
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
| |
Collapse
|
3
|
Yan W, Zeng HY, Zhang K, Long YW, Wang MX. Ni-Co-Mn hydrotalcite-derived hierarchically porous sulfide for hybrid supercapacitors. J Colloid Interface Sci 2023; 635:379-390. [PMID: 36599237 DOI: 10.1016/j.jcis.2022.12.144] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/18/2022] [Accepted: 12/27/2022] [Indexed: 12/30/2022]
Abstract
Ternary transition metal sulfides have attracted much attention due to their superior electrochemical properties. Nevertheless, it is difficult to commercialize sulfides due to their intrinsic properties such as dull reaction kinetics and an insufficient number of active sites. Herein, a self-supporting porous NiCoMnS sulfide (NiCoMnS/NF) arrayed on nickel foam (NF) with 3D honeycomb-like structure was designed and prepared via a hydrothermal and post-sulfidation process. It was found that the 3D hierarchically network architecture, constructed by nanosheets with abundant cavities, endowed NiCoMnS/NF with a high specific area and rich ion/electron-transport channels, which facilitated ion/electron transfer and Faradaic reaction kinetic. The optimal NiCoMnS/NF exhibited a markedly improved electrochemical performance due to the merits of complementary multi-composition and unique 3D network structure with multi-level "superhighways". Furthermore, the NiCoMnS//AC device fabricated with NiCoMnS/NF cathode and activated carbon (AC) anode delivered an excellent specific charge and exceptional energy density. This work offers a reference for designing the structure of electrode materials.
Collapse
Affiliation(s)
- Wei Yan
- College of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Hong-Yan Zeng
- College of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China.
| | - Kai Zhang
- College of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Yi-Wen Long
- College of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Ming-Xin Wang
- College of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| |
Collapse
|
4
|
Bi Q, Hu X, Tao K. MOF-derived NiCo-LDH Nanocages on CuO Nanorod Arrays for Robust and High Energy Density Asymmetric Supercapacitors. Chemistry 2023; 29:e202203264. [PMID: 36450659 DOI: 10.1002/chem.202203264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/02/2022]
Abstract
Layered double hydroxide (LDH) is widely explored in supercapacitors on account of its high capacity, adjustable composition and easy synthesis process. Unfortunately, solitary LDH still has great limitations as an electrode material due to its shortcomings, such as poor conductivity and easy agglomeration. Herein, nanoflakes assembled NiCo-LDH hollow nanocages derived from a metal-organic framework (MOF) precursor are strung by CuO nanorods formed from etching and oxidation of copper foam (CF), forming hierarchical CuO@NiCo-LDH heterostructures. The as-synthesized CuO@NiCo-LDH/CF shows a large capacitance (5607 mF cm-2 at 1 mA cm-2 ), superior rate performance (88.3 % retention at 10 mA cm-2 ) and impressive cycling durability (93.1 % capacitance is retained after 5000 cycles), which is significantly superior to control CuO/CF, CuO@ZIF-67/CF, NiCo-LDH/CF and Cu(OH)2 @NiCo-LDH/CF electrodes. Besides, an asymmetrical supercapacitor consists of CuO@NiCo-LDH/CF and activated carbon displays a maximum energy density of 47.3 Wh kg-1 , and its capacitance only declines by 6.8 % after 10000 cycles, demonstrating remarkable cycling durability. The advantages of highly conductive and robust CuO nanorods, MOF-derived hollow structure and the core-shell heterostructure contribute to the outstanding electrochemical performance. This synthesis strategy can be extended to design various core-shell heterostructures adopted in versatile electrochemical energy storage applications.
Collapse
Affiliation(s)
- Qiong Bi
- School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Xuanying Hu
- School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Kai Tao
- School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| |
Collapse
|
5
|
Jing C, Ma J, Sun Q, Li Y, Tang X, Ling F, Wang Y, Zhang W, Zhou X, Zhang Y. Crystalline phase transformation of Co-MOF derivatives on ordered mesoporous carbons for high-performance supercapacitor applications. CrystEngComm 2023. [DOI: 10.1039/d3ce00133d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Preparation and phase transformation of Co-based metal–organic frameworks derivatives.
Collapse
Affiliation(s)
- Chuan Jing
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R. China
| | - Jinyu Ma
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R. China
| | - Qing Sun
- Chongqing Key Laboratory of Inorganic Functional Materials, Chongqing Normal University, Chongqing 401331, P.R. China
| | - Yanhong Li
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R. China
| | - Xiao Tang
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R. China
| | - Faling Ling
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R. China
| | - Yongjie Wang
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R. China
| | - Wendong Zhang
- School of Materials Science and Engineering, Chongqing University, Chongqing 401331, P.R. China
| | - Xianju Zhou
- Chongqing Key Laboratory of Inorganic Functional Materials, Chongqing Normal University, Chongqing 401331, P.R. China
| | - Yuxin Zhang
- School of Materials Science and Engineering, Chongqing University, Chongqing 401331, P.R. China
| |
Collapse
|
6
|
Elango D, Manikandan V, Packialakshmi JS, Hatamleh AA, Alnafisi BK, Liu X, Zhang F, Jayanthi P. Synthesizing Ag 2O x(3 wt%)-loaded ZnFe 2O 4 photocatalysts for efficiently saving polluted aquatic ecosystems. CHEMOSPHERE 2023; 311:136983. [PMID: 36306962 DOI: 10.1016/j.chemosphere.2022.136983] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/13/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Herein, we report an Ag2Ox (3 wt%)-loaded ZnFe2O4 photocatalysts synthesized by co-precipitation and incipient wet impregnation approach for acetamiprid degradation, antibacterial, antioxidant, and toxicity assay. Initially, bare ZnFe2O4 nanostructures were made through a simple co-precipitation method. In the second step, 3 wt% of various transition metal oxides (CuOx, ZrOx, and Ag2Ox) were embedded on the surface of ZnFe2O4 photocatalysts via a wet impregnation method. Further, the prepared photocatalysts were systematically characterized using XRD, FTIR, FE-SEM, BET, HRTEM, and XPS analysis. The optimum Ag2Ox (3 wt%)-loaded ZnFe2O4 photocatalysts revealed higher degradation efficiencies for acetamiprid under sunlight irradiation. Additionally, the Ag2Ox (3 wt%)-loaded ZnFe2O4 photocatalysts showed more effective antioxidant and antibacterial activity than blank and bare ZnFe2O4 nanomaterials. The enriched catalytic efficiency can be accredited to the 3 wt% of Ag2Ox NPs loaded on ZnFe2O4 nanomaterials, possibly due to the boosted transport properties of the electron-hole pairs. This study will provide a new avenue for the development of simple and effective photocatalysts for efficiently saving polluted aquatic ecosystems.
Collapse
Affiliation(s)
- Duraisamy Elango
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China; Department of Environmental Science, Periyar University, Salem, 636011, Tamil Nadu, India
| | - Velu Manikandan
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China; Department of Food Science and Technology, Seoul Women's University, 621 Hwarangno, Nowon-gu, Seoul, South Korea; Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamilnadu, 600 077, India
| | | | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Bassam Khalid Alnafisi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Xinghui Liu
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China; Department of Materials Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMTS), Thandalam, Chennai, 602105, Tamilnadu, India.
| | - Fuchun Zhang
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China.
| | - Palaniyappan Jayanthi
- Department of Environmental Science, Periyar University, Salem, 636011, Tamil Nadu, India.
| |
Collapse
|
7
|
Kunnamareddy M, Ganesan S, Hatamleh AA, Alnafisi BK, Rajendran R, Chinnasamy R, Arumugam P, Diravidamani B, Lo HM. Enhancement in the visible light induced photocatalytic and antibacterial properties of titanium dioxide codoped with cobalt and sulfur. ENVIRONMENTAL RESEARCH 2023; 216:114705. [PMID: 36328227 DOI: 10.1016/j.envres.2022.114705] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/27/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
In this study, the sol-gel technique was used to develop Cobalt Sulfur codoped Titanium Dioxide (Co-S codoped TiO2) photocatalysts. For structural analysis of the prepared resultant TiO2 samples, XRD, FTIR, UV-Vis DRS, SEM, HR-TEM and EDX measurements were used to describe the produced photocatalysts. The characterization findings indicate that the synthesized nanoparticles possessed great crystallinity, high purity, and superior optical characteristics. For the methylene blue (MB) degradation process, Co-S codoped TiO2 nanoparticles were tested for their photocatalytic degradation performance. The Co-S codoped TiO2 nanoparticles had improved catalytic activity when compared with pure, Co-doped, S-doped TiO2 and decomposed 93% of MB in 120 min. When compared to pure and doped TiO2, the catalysts of Co-S codoped TiO2 showed a synergistic effect and improved the performance of the catalysts. Furthermore, the antibacterial applications of synthesized Co-S codoped TiO2 nanoparticles was studied against E. coli (Gram negative) and S. aureus (Gram positive) bacteria and exhibited strong antibacterial activity against the selected strains.
Collapse
Affiliation(s)
- Mehala Kunnamareddy
- Department of Physics, N.K.R. Govt. Arts College for Women, Namakkal - 637 001, Tamilnadu, India
| | - Sivarasan Ganesan
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, Taiwan
| | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Bassam Khalid Alnafisi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ranjith Rajendran
- Department of Physics, KSR College of Engineering, Tiruchengode - 637 215, Tamilnadu India.
| | - Ragavendran Chinnasamy
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamilnadu, India - 600 077
| | - Priyadharsan Arumugam
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamilnadu, India - 600 077.
| | - Barathi Diravidamani
- Department of Physics, N.K.R. Govt. Arts College for Women, Namakkal - 637 001, Tamilnadu, India
| | - Huang-Mu Lo
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, Taiwan.
| |
Collapse
|
8
|
Raj RM, Ganesan S, Suganthi S, Vignesh S, Hatamleh AA, Alnafisi BK, Venkatesan R, Raj V, Lo HM. Facile construction of cost-effective zinc-aluminium polymeric framework for efficient removal of selective both drug and dye from an aqueous medium. CHEMOSPHERE 2023; 311:137105. [PMID: 36347355 DOI: 10.1016/j.chemosphere.2022.137105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/17/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
A novel aluminium (Al) and its active alloys are extensively been used in nearly all areas owing to their cost-effectiveness. But when it is subjected to an aqueous medium, gets corroded through a chemical response. In this paper, a novel framework was fabricated by copolymer coating over on Al and loaded with zinc via electro polymerization and electrodeposition method ([EDA- OPDA]Al@Zn). The as-fabricated composite has emerged for the sorption of Methylene Blue (MB) aqueous dye and Paracetomal drug (PAR). The as-fabricated composite framework has been categorized via IR spectra, FE-SEM images, and EDX spectra. The sorption progression was optimized for numerous prompting features like pH, contact time and impact of dosage. Based on kinetics data, the growth in QE value by an enhancement in temperature for adsorption and the higher r values shows the adsorption progression is a pseudo-second-order model. The thermodynamic constraints specify that the field of adsorbate is impulsive and typical endothermic process. Instead, the corrosion resistance of a composite in the 3.5% of NaCl. Solution was explored via EIS spectra and potentio-dynamic polarization. Depending on the observed features, it indicates that the [EDA-OPDA]Al@Zn framework provided fantastic corrosion resistance. So it is obvious that the as-synthesized framework is of multitasking, that it could be successfully performed for the exclusion of MB aqueous dye and PAR drug from the aqueous medium and it also withstands effectively in this corrosive medium.
Collapse
Affiliation(s)
- R Mohan Raj
- Department of Chemistry, J.K.K.Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India
| | - Sivarasan Ganesan
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, Taiwan
| | - S Suganthi
- Advanced Materials Research Laboratory, Department of Chemistry, Periyar University, Salem, 636011, Tamil Nadu, India
| | - S Vignesh
- SSN Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Bassam Khalid Alnafisi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Raja Venkatesan
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - V Raj
- Advanced Materials Research Laboratory, Department of Chemistry, Periyar University, Salem, 636011, Tamil Nadu, India.
| | - Huang-Mu Lo
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, Taiwan.
| |
Collapse
|
9
|
Vijayan M, Manikandan V, Rajkumar C, Hatamleh AA, Alnafisi BK, Easwaran G, Liu X, Sivakumar K, Kim H. Constructing Z-scheme g-C 3N 4/TiO 2 heterostructure for promoting degradation of the hazardous dye pollutants. CHEMOSPHERE 2023; 311:136928. [PMID: 36272623 DOI: 10.1016/j.chemosphere.2022.136928] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/11/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
The use of dyes and segments has increased widely in recent years, but it poses a serious health risk to ecosystems. In this work, TiO2 and two-dimensional g-C3N4 nanosheets (g-CN) were fabricated through co-precipitation and thermal polymerization technique, respectively. The g-CN-TiO2 photocatalyst (1: 3, 2: 2, 3: 1) in various weight percentages was prepared using a simple impregnation process. The photocatalytic behaviour of the g-CN, TiO2 NPs, and different weight percentages of g-CN-TiO2 photocatalyst was evaluated against methylene blue (MB) dye under UV-visible light illumination. Compared to pristine and other weight percentages of the g-CN-TiO2 nanocomposite, the optimized g-CN-TiO2 nanocomposite (3:1) showed promoted performance against MB dye. The enriched catalytic efficiency can be accredited to the low amount of TiO2 nanoparticles deposited on gCN nanosheets, possibly due to the boosted transport properties of the electron-hole pairs. The enriched photocatalytic behaviour can be attributed to the development of the Z-scheme system between TiO2 and g-CN. The current study is an outstanding demonstration of the development of maximum catalytic efficiency for destroying hazardous chemical dyes.
Collapse
Affiliation(s)
- M Vijayan
- Department of Chemistry, Government Polytechnic College, Jolarpet, 635651, Tamilnadu, India
| | - Velu Manikandan
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China; Department of Food Science and Technology, Seoul Women's University, 621 Hwarangno, Nowon-gu, Seoul, South Korea; Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamilnadu, 600 077, India
| | - Chellakannu Rajkumar
- School of Materials Science and Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Bassam Khalid Alnafisi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - G Easwaran
- Department of Chemistry, Government Polytechnic College, Dharmapuri, 635205, Tamilnadu, India
| | - Xinghui Liu
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China; Department of Materials Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMTS), Chennai, 602105, Tamilnadu, India.
| | - K Sivakumar
- Department of Chemistry, Adhiyamaan College of Engineering, Hosur, 635109, Tamilnadu, India.
| | - Haekyoung Kim
- School of Materials Science and Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| |
Collapse
|
10
|
Manikandan V, Lee NY. Reduced graphene oxide: Biofabrication and environmental applications. CHEMOSPHERE 2023; 311:136934. [PMID: 36273614 DOI: 10.1016/j.chemosphere.2022.136934] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/04/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
Green synthesis of high-quality reduced graphene oxide (rGO) from agro-industrial waste resources remains attractive owing to its outstanding environmental benefits. The remarkable properties of rGO include excellent morphology, uniform particle size, good optical properties, high conductivity, nontoxicity, and extraordinary chemical stability. Traditional methods for the synthesis of rGO nanomaterials involve several chemical reactions including oxidation, carbonization, toxic solvent, and pyrolysis which produce harmful byproducts. Green preparation of rGO is an emerging area of research in graphene technology which is cost-effective and sustainable in the procedure. Owing to the uniform particle rGO particle size, these smart nanomaterials have wide applicability, including in metal ions and pollutant sensing and adsorption, photocatalysis, optoelectrical devices, medical diagnosis, and drug delivery. Here we review the physicochemical properties of rGO, the biowaste sources and green methods of rGO synthesis, and the diverse applications of rGO, including in water purification and the biomedical fields. With this review, covering more than 200 research articles published on rGO in the last eight years ending in 2022, we aim to provide a quick guide for researchers seeking up-to-date information on the properties, production, and applicability of rGO, with special attention to rGO applications in water purification and the biomedical fields.
Collapse
Affiliation(s)
- Velu Manikandan
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, South Korea
| | - Nae Yoon Lee
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, South Korea.
| |
Collapse
|
11
|
Jing C, Shu K, Sun Q, Zheng J, Zhang S, Liu X, Yao K, Zhou X, Liu X. Atomic Scale Optimization Strategy of Al-Based Layered Double Hydroxide for Alkali Stability and Supercapacitors. Int J Mol Sci 2022; 23:ijms231911645. [PMID: 36232942 PMCID: PMC9569664 DOI: 10.3390/ijms231911645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/05/2022] Open
Abstract
The pseudocapacitor material is easily decomposed when immersed in alkaline solution for a long time. Hence, it is necessary to find a strategy to improve the alkali stability of pseudocapacitor materials. In addition, the relationship between alkali stability and electrochemical performance is still unclear. In this work, a series of Al-based LDH (Layered double hydroxide) and derived Ni/Co-based sulfides are prepared, and corresponding alkali stability and electrochemical performance are analyzed. The alkali stability of CoAl LDH is so poor and can be improved effectively by doping of Ni. Ni1Co2S4 and Ni2Co1Al LDH exhibit an outstanding alkali stability, and Ni2Co1S4 exhibits an extremely poor alkali stability. The variable valence state of Co element and the solubility of Al in alkali solution are the fundamental reasons for the poor alkali stability of CoAl LDH and Ni2Co1S4. Ni2Co1S4 showed an outstanding electrochemical performance in a three-electrode system, which is better than that of Ni1Co2S4, indicating that there is no direct correlation between alkali stability and electrochemical properties. Sulfidation improved the electrical conductivity and electrochemical activity of electrode materials, whereas alkali etching suppressed the occurrence of the electrochemical reaction. Overall, this work provides a clear perspective to understand the relationship between alkali stability and electrochemical properties.
Collapse
Affiliation(s)
- Chuan Jing
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
- Correspondence:
| | - Kai Shu
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Qing Sun
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Jiayu Zheng
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Shuijie Zhang
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Xin Liu
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Kexin Yao
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Xianju Zhou
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Xiaoying Liu
- Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| |
Collapse
|
12
|
Facile Route to Achieve Self-Supported Cu(OH)2/Ni3S2 Composite Electrode on Copper Foam for Enhanced Capacitive Energy Storage Performance. COATINGS 2022. [DOI: 10.3390/coatings12040529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Herein, a Cu(OH)2/Ni3S2 composite was successfully prepared through facile two-step electrodeposition. As the electrode substrate and the only copper source, the copper foam underwent surface oxidation by galvanostatic deposition technology to form Cu(OH)2, and the subsequent coverage of Ni3S2 was achieved by potentiostatic deposition. The Cu(OH)2 acts as a skeleton, providing support for Ni3S2 growth, thus providing more abundant electrochemical active sites. By virtue of the in situ growth strategy and the synergy of different components, the optimized Cu(OH)2/Ni3S2 electrode illustrates significantly enhanced pseudocapacitance performance, with an areal specific capacitance of 11.43 F cm−2 at 2 mA cm−2, good coulombic efficiency of 94.55%, and remarkable cyclic stability (83.33% capacitance retention after 5000 cycles).
Collapse
|