1
|
Benitto JJ, Vijaya JJ, Saravanakumar B, Al-Lohedan H, Bellucci S. Microwave engineered NiZrO 3@GNP as efficient electrode material for energy storage applications. RSC Adv 2024; 14:8178-8187. [PMID: 38469189 PMCID: PMC10925960 DOI: 10.1039/d4ra00621f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/02/2024] [Indexed: 03/13/2024] Open
Abstract
Supercapacitors (SCs) have emerged as attractive energy storage devices due to their rapid charge/discharge rates, long cycle life, and high-power density. However, the development of innovative electrode materials to achieve high-performance remains crucial to meet future requirements in supercapacitor technology. In this work, we have explored the potential of a microwave-engineered NiZrO3@GNP composite as a promising electrode material for SCs. A microwave assisted hydrothermal approach was adopted for the fabrication of the NiZrO3@GNP nanocomposite. Structural and morphological investigations showed its structural richness and its chemical compositions. When applied as a SC electrode, this innovative combination exhibits battery-like behaviour with higher specific capacity (577.63 C g-1) with good cyclic stability, and good performance. We have assembled an asymmetric-type two-electrode SC device and analysed its electrochemical features. This NiZrO3@GNP device exhibits the specific capacity of 47 C g-1 with capacitance retention of 70% after 2000 charge-discharge cycles. Further research on optimizing the synthesis process and exploring different device configurations could pave the way for even higher-performance supercapacitors in the future.
Collapse
Affiliation(s)
- J John Benitto
- Catalysis and Nanomaterials Research Laboratory, Department of Chemistry, Loyola College Chennai-600034 Tamil Nadu India
| | - J Judith Vijaya
- Catalysis and Nanomaterials Research Laboratory, Department of Chemistry, Loyola College Chennai-600034 Tamil Nadu India
| | - B Saravanakumar
- Department of Physics, Dr. Mahalingam College of Engineering and Technology Pollachi Tamil Nadu-642 003 India
| | - Hamad Al-Lohedan
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | | |
Collapse
|
2
|
Alharbi RM, Sholkamy EN, Alsamhary KI, Abdel-Raouf N, Ibraheem IBM. Optimization Study of the Capacity of Chlorella vulgaris as a Potential Bio-Remediator for the Bio-Adsorption of Arsenic (III) from Aquatic Environments. TOXICS 2023; 11:toxics11050439. [PMID: 37235253 DOI: 10.3390/toxics11050439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/30/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023]
Abstract
This study examined the ability of the green microalgae Chlorella vulgaris to remove arsenic from aqueous solutions. A series of studies was conducted to determine the optimal conditions for biological arsenic elimination, including biomass amount, incubation time, initial arsenic level, and pH values. At 76 min, pH 6, 50 mgL-1 metal concentration, and 1 gL-1 bio-adsorbent dosage, the maximum removal of arsenic from an aqueous solution was 93%. The uptake of As (III) ions by C. vulgaris reached an equilibrium at 76 min of bio-adsorption. The maximum adsorptive rate of arsenic (III) by C. vulgaris was 55 mg/gm. The Langmuir, Freundlich, and Dubinin-Radushkevich equations were used to fit the experimental data. The best theoretical isotherm of Langmuir, Freundlich, or/and Dubinin-Radushkevich for arsenic bio-adsorption by Chlorella vulgaris was determined. To choose the best theoretical isotherm, the coefficient of correlation was used. The data on absorption appeared to be linearly consistent with the Langmuir (qmax = 45 mgg-1; R2 = 0.9894), Freundlich (kf = 1.44; R2 = 0.7227), and Dubinin-Radushkevich (qD-R = 8.7 mg/g; R2 = 0.951) isotherms. The Langmuir and Dubinin-Radushkevich isotherms were both good two-parameter isotherms. In general, Langmuir was demonstrated to be the most accurate model for As (III) bio-adsorption on the bio-adsorbent. Maximum bio-adsorption values and a good correlation coefficient were observed for the first-order kinetic model, indicating that it was the best fitting model and significant in describing the arsenic (III) adsorption process. SEM micrographs of treated and untreated algal cells revealed that ions adsorbed on the algal cell's surface. A Fourier-transform infrared spectrophotometer (FTIR) was used to analyze the functional groups in algal cells, such as the carboxyl group, hydroxyl, amines, and amides, which aided in the bio-adsorption process. Thus, C. vulgaris has great potential and can be found in eco-friendly biomaterials capable of adsorbing arsenic contaminants from water sources.
Collapse
Affiliation(s)
- Reem Mohammed Alharbi
- Department of Biology, College of Science, University of Hafr Al Batin, Hafr Al Batin 39524, Saudi Arabia
| | - Essam Nageh Sholkamy
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khawla Ibrahim Alsamhary
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Neveen Abdel-Raouf
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Salah Salem Street, Beni-Suef 62511, Egypt
| | - Ibraheem Borie M Ibraheem
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Salah Salem Street, Beni-Suef 62511, Egypt
| |
Collapse
|
3
|
Chung SH, Wu YH, Tseng YH, Nguyen TX, Ting JM. High Entropy Oxide (CrMnFeNiMg) 3 O 4 with Large Compositional Space Shows Long-Term Stability as Cathode in Lithium-Sulfur Batteries. CHEMSUSCHEM 2023; 16:e202300135. [PMID: 36795009 DOI: 10.1002/cssc.202300135] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/15/2023] [Indexed: 06/18/2023]
Abstract
The repeated formation and irreversible diffusion of liquid-state lithium polysulfides (LiPSs) are the primary challenges in the development of high-energy-density lithium-sulfur battery (LSB). An effective strategy to alleviate the resulting polysulfide loss is critical for the stability of LSBs. In this regard, high entropy oxides (HEOs) appear as a promising additive for the adsorption and conversion of LiPSs owing to the diverse active sites, offering unparalleled synergistic effects. Herein, we have developed a (CrMnFeNiMg)3 O4 HEO as a functional polysulfide trapper in LSB cathode. The adsorption of LiPSs by the metal species (i. e., Cr, Mn, Fe, Ni, and Mg) in the HEO takes place through two different paths and leads to enhanced electrochemical stability. We demonstrate that the optimal sulfur cathode with the (CrMnFeNiMg)3 O4 HEO attains a high peak and reversible discharge capacities of 857 mAh g-1 and 552 mAh g-1 , respectively, at a cycling rate of C/10, a long cycle life of 300 cycles, and a high rate performance at the cycling rates from C/10 to C/2.
Collapse
Affiliation(s)
- Sheng-Heng Chung
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Yi-Hsuan Wu
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Yu-Hsun Tseng
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Thi Xuyen Nguyen
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Jyh-Ming Ting
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan, 70101, Taiwan
| |
Collapse
|
4
|
Rajput MK, Hazarika R, Sarma D. Removal of As(III)/As(V) from aqueous solution using newly developed thiosalicylic acid coated magnetite [TSA@Fe 3O 4] nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:23348-23362. [PMID: 36322359 DOI: 10.1007/s11356-022-23852-6] [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: 05/10/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
The aim of this study was to develop an affordable adsorption methodology for removal of As(III)/As(V) from contaminated water. Herein, novel adsorbent TSA@Fe3O4 nanoparticles (NPs) were synthesized by decorating thiosalicylic acid (TSA) on magnetite nanoparticles (Fe3O4 NPs) and employed for removal of As(III)/As(V) species from artificially contaminated natural water systems. TSA@Fe3O4 NPs demonstrated excellent adsorption efficiency (AE) and 98% of As(V) and 93% of As(III) was removed at optimized experimental conditions. The adsorption kinetic and equilibrium isotherm studies were conducted preferentially for As(III) adsorption. Adsorption followed the pseudo-second-order kinetic (R2 = 99%) and adsorption data fitted well in Langmuir isotherm model (R2 = 99%) and maximum adsorption capacity (Qmax = 34.1 mg/g) was calculated for 5 mg/L of As(III) by using 10 mg of TSA@Fe3O4 NPs. The effect of pH, contact time, adsorption dosages, and competitive anions was also examined to identify optimum experimental conditions. The adsorbent was characterized by advanced instrumental techniques to investigate the physicochemical properties and stability of NPs. To comprehend the interactions of As(III) species with adsorbent NPs, NPs were analyzed using XPS and Raman spectroscopy techniques. Both the techniques confirmed that As(III) and As(V) species present simultaneously on adsorbent surface. The TSA@Fe3O4 was regenerated using 0.1 M NaOH. The findings of this study suggested that TSA@Fe3O4 NPs could be considered a potential adsorbent for effective remediation of As(III) and As(V) from contaminated natural water systems.
Collapse
Affiliation(s)
- Mohit Kumar Rajput
- Department of Chemistry, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Roktopol Hazarika
- Department of Chemistry, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Diganta Sarma
- Department of Chemistry, Dibrugarh University, Dibrugarh, 786004, Assam, India.
| |
Collapse
|
5
|
G G, Sathish A, Kumar PS, Nithya K, Rangasamy G. A review on current progress of graphene-based ternary nanocomposites in the removal of anionic and cationic inorganic pollutants. CHEMOSPHERE 2022; 309:136617. [PMID: 36181843 DOI: 10.1016/j.chemosphere.2022.136617] [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: 04/28/2022] [Revised: 09/09/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
The current review aims to summarize the ongoing advances in high-performing graphene-based ternary nanocomposites for removing cationic and anionic inorganic pollutants. Graphene derivatives are extensively utilized for the development of composites due to their high synergism with co-functional materials, rational design, flexible surface chemistry, high mobile charge carriers, improved binding properties, and many more. The past ten years have witnessed progressive research on graphene-based ternary nanocomposites in a multitude of pollution remediation applications. Therefore, the focus falls on understanding how these ternary nanocomposites are tailored to capture the inorganic cationic and anionic contaminants with particular emphasis on graphene derivatives as base matrix and filler. The review investigates the synthesis, categorization, and characterization techniques of graphene-based ternary composites. Besides, the study broadens the understanding of the binding mechanism of the pollutants onto graphene ternary composites. The review also assesses the separation and recycling efficacy of the composites in detail. The future prospects in improving the practical application of the ternary systems also have been discussed. The comprehensive review on graphene based ternary systems detailing their structural and functional aspects, as well as their performance as inorganic decontaminants can provide deep insights for researchers in improvising wastewater treatment technologies.
Collapse
Affiliation(s)
- Gopika G
- Department of Sciences, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India
| | - Asha Sathish
- Department of Sciences, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India.
| | - K Nithya
- Department of Chemical Engineering & Materials Science, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India; Centre of Excellence in Advanced Materials & Green Technologies (CoE-AMGT), Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India.
| | - Gayathri Rangasamy
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| |
Collapse
|
6
|
Prasad AK, Park JY, Jung HY, Kang JW, Kang SH, Ahn KS. Electrochemical deposition of Ni-WO3 thin-film composites for electrochromic energy storage applications: novel approach toward quantum-dot-sensitized solar cell-assisted Ni-WO3 electrochromic device. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
7
|
Nano-alumina wrapped carbon microspheres for ultrahigh elimination of pentavalent arsenic and fluoride from potable water. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.028] [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]
|
8
|
Ullah H, Ahmad R, Khan AA, Khaliq N, Khan M, Ali G, Karim S, Yi X, Cho SO. A sensitive non-enzymatic glucose sensor based on MgO entangled nanosheets decorated with CdS nanoparticles: Experimental and DFT study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
9
|
Aslanbay Guler B, Demirel Z, Imamoglu E. Development of a Controlled Injection Method Using Support Templates for the Production of Chemobrionic Materials. ACS OMEGA 2022; 7:23910-23918. [PMID: 35847263 PMCID: PMC9281318 DOI: 10.1021/acsomega.2c02620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Chemobrionics is a research field about the well-known self-organized inorganic structures. Numerous research works have focused on controlling their growth pattern and characteristic features. In the present study, a controlled injection method is proposed to produce more regular self-assembled chemobrionics compared to the standard direct injection technique. This method involves the injection of a metal salt solution into an agarose support template filled with an anionic solution. The obtained structures were studied by scanning electron microscopy, X-ray microtomography, X-ray photoelectron spectroscopy, Raman spectroscopy, Fourier-transform IR spectroscopy, and thermogravimetric analysis. Despite the complex mechanism and chemistry underlying the self-organization phenomena, the controlled injection method enabled the generation of regular standard chemobrionic structures with high experimental reproducibility. It provided the extraction of tubular structures from the reaction vessel without breakage, thus allowing comprehensive characterization. Furthermore, the morphological, chemical, and thermal features of these structures were highly correlated with the standard chemobrionics obtained in the direct injection method. The proposed controlled injection method holds great promise for understanding and controlling the properties of chemobrionics and related structures.
Collapse
Affiliation(s)
- Bahar Aslanbay Guler
- Department of Bioengineering, Faculty
of Engineering, Ege University, Izmir 35040, Turkey
| | - Zeliha Demirel
- Department of Bioengineering, Faculty
of Engineering, Ege University, Izmir 35040, Turkey
| | - Esra Imamoglu
- Department of Bioengineering, Faculty
of Engineering, Ege University, Izmir 35040, Turkey
| |
Collapse
|
10
|
Duy LNP, Bui C, Nguyen LT, Nguyen TH, Tung NT, La DD. Dioctyl Phthalate-Modified Graphene Nanoplatelets: An Effective Additive for Enhanced Mechanical Properties of Natural Rubber. Polymers (Basel) 2022; 14:polym14132541. [PMID: 35808586 PMCID: PMC9269448 DOI: 10.3390/polym14132541] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/14/2022] [Accepted: 06/17/2022] [Indexed: 11/16/2022] Open
Abstract
Graphene has been extensively considered an ideal additive to improve the mechanical properties of many composite materials, including rubbers, because of its novel strength, high surface area, and remarkable thermal and electron conductivity. However, the pristine graphene shows low dispersibility in the rubber matrix resulting in only slightly enhanced mechanical properties of the rubber composite. In this work, graphene nanoplatelets (GNPs) were modified with dioctyl phthalate (DOP) to improve the dispersibility of the graphene in the natural rubber (NR). The distribution of the DOP-modified GNPs in the NR matrix was investigated using scanning electron microscopy, X-ray diffraction, and Raman spectroscopy. The effect of the modified GNPs’ contents on the mechanical properties of the GNPs/NR composite was studied in detail. The results showed that the abrasion resistance of the graphene-reinforced rubber composite significantly improved by 10 times compared to that of the rubber without graphene (from 0.3 to 0.03 g/cycle without and with addition of the 0.3 phr modified GNPs). The addition of the modified GNPs also improved the shear and tensile strength of the rubber composite. The tensile strength and shear strength of the NR/GNPs composite with a GNPs loading of 0.3 phr were determined to be 23.63 MPa and 42.69 N/mm, respectively. Even the presence of the graphene reduced the other mechanical properties such as Shore hardness, elongation at break, and residual elongation; however, these reductions were negligible, which still makes the modified GNPs significant as an effective additive for the natural rubber in applications requiring high abrasion resistance.
Collapse
Affiliation(s)
- Linh Nguyen Pham Duy
- Center for Polymer Composite and Paper, School of Chemical Engineering, Hanoi University of Science and Technology, Hai Ba Trung, Hanoi 100000, Vietnam; (L.N.P.D.); (C.B.); (L.T.N.); (T.H.N.)
| | - Chuong Bui
- Center for Polymer Composite and Paper, School of Chemical Engineering, Hanoi University of Science and Technology, Hai Ba Trung, Hanoi 100000, Vietnam; (L.N.P.D.); (C.B.); (L.T.N.); (T.H.N.)
| | - Liem Thanh Nguyen
- Center for Polymer Composite and Paper, School of Chemical Engineering, Hanoi University of Science and Technology, Hai Ba Trung, Hanoi 100000, Vietnam; (L.N.P.D.); (C.B.); (L.T.N.); (T.H.N.)
| | - Tung Huy Nguyen
- Center for Polymer Composite and Paper, School of Chemical Engineering, Hanoi University of Science and Technology, Hai Ba Trung, Hanoi 100000, Vietnam; (L.N.P.D.); (C.B.); (L.T.N.); (T.H.N.)
| | - Nguyen Thanh Tung
- Institute of Materials Science and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Hanoi 100000, Vietnam;
| | - Duong Duc La
- Institute of Chemistry and Materials, Hoang Sam, Nghia Do, Cau Giay, Hanoi 100000, Vietnam
- Correspondence:
| |
Collapse
|
11
|
Krasil'nikov V, Baklanova I, Polyakov E, Volkov I, Khlebnikov A, Tyutyunnik A, Tarakina N. Amorphous nanostructured composites Al2O3:nC with enhanced sorption affinity to La(III), Ce(III), U(VI) ions in aqueous solution. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
12
|
Yang B, Zhou X, Chen Y, Fang Y, Luo H. Preparation of a spindle δ-MnO2@Fe/Co-MOF-74 for effective adsorption of arsenic from water. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127378] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
13
|
Jain M, Khan SA, Pandey A, Pant KK, Ziora ZM, Blaskovich MAT. Instructive analysis of engineered carbon materials for potential application in water and wastewater treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 793:148583. [PMID: 34328999 DOI: 10.1016/j.scitotenv.2021.148583] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/02/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
Water remediation is an essential component for sustainable development. Increasing population and rapid industrialization have contributed to the deterioration of water resources. In particular, effluents from chemical, pharmaceutical, petroleum industries, and anthropogenic activities have led to severe ecological degradation. Many of these detrimental pollutants are highly toxic even at low concentrations, acting as carcinogens and inflicting severe long-lasting effects on human health. This review underscores the potential applications of engineered carbon-based materials for effective wastewater treatment. It focuses on the performance as well as efficiency of activated carbon, graphene nanomaterial, and carbon nanotubes, both with and without chemical functionalization. Plausible mechanisms of action between the chemically functionalized adsorbent and pollutants are also discussed. Based on the keywords from the literature published in the recent five years, a statistical practicality-vs-applicability analysis of these three materials is also provided. The review will provide a deep understanding of the physical or chemical interactions of the wastewater pollutants with carbon materials.
Collapse
Affiliation(s)
- Marut Jain
- The University of Queensland - Indian Institute of Technology Delhi Academy of Research (UQIDAR), India
| | - Sadaf Aiman Khan
- The University of Queensland - Indian Institute of Technology Delhi Academy of Research (UQIDAR), India
| | - Ashish Pandey
- Department of Chemical Engineering, Indian Institute of Technology Delhi, India
| | - Kamal Kishore Pant
- Department of Chemical Engineering, Indian Institute of Technology Delhi, India.
| | - Zyta Maria Ziora
- Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Mark A T Blaskovich
- Centre for Superbug Solutions, Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072, Australia
| |
Collapse
|
14
|
Li B, Li L, Ren H, Lu Y, Peng F, Chen Y, Hu C, Zhang G, Zou C. Photoassisted Electron-Ion Synergic Doping Induced Phase Transition of n-VO 2/p-GaN Thin-Film Heterojunction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:43562-43572. [PMID: 34468117 DOI: 10.1021/acsami.1c10401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As a typical correlated metal oxide, vanadium dioxide (VO2) shows specific metal-insulator transition (MIT) properties and demonstrates great potential applications in ultrafast optoelectronic switch, resistive memory, and neuromorphic devices. Effective control of the MIT process is essential for improving the device performance. In the current study, we have first proposed a photoassisted ion-doping method to modulate the phase transition of the VO2 layer based on the photovoltaic effect and electron-ion synergic doping in acid solution. Experimental results show that, for the prepared n-VO2/p-GaN nanojunction, this photoassisted strategy can effectively dope the n-VO2 layer by H+, Al3+, or Mg2+ ions under light radiation and trigger consecutive insulator-metal-insulator transitions. If combined with standard lithography or electron beam etching processes, selective doping with nanoscale size area can also be achieved. This photoassisted doping method not only shows a facile route for MIT modulation via a doping route under ambient conditions but also supplies some clues for photosensitive detection in the future.
Collapse
Affiliation(s)
- Bowen Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Liang Li
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Hui Ren
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Yuan Lu
- State Key Laboratory of Pulsed Power Laser Technology, NUDT, Hefei 230037, P. R. China
- Infrared and Low Temperature Plasma Key Laboratory of Anhui Province, NUDT, Hefei 230037, P. R. China
| | - Fangfang Peng
- Center for Micro- and Nanoscale Research and Fabrication, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Yuliang Chen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Changlong Hu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Guobin Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
- Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Chongwen Zou
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| |
Collapse
|
15
|
Uz-Zaman KA, Biswas B, Rahman MM, Naidu R. Smectite-supported chain of iron nanoparticle beads for efficient clean-up of arsenate contaminated water. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124396. [PMID: 33246822 DOI: 10.1016/j.jhazmat.2020.124396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/27/2020] [Accepted: 10/24/2020] [Indexed: 06/12/2023]
Abstract
Prolonged exposure to inorganic arsenic (As) via drinking water is a major concern as it poses significant human health risks. Removal of As is crucial but requires effective and environment-friendly clean-up technology to avoid any additional risk to the environment. In this study, we developed Australian smectite (smec)-supported nano zero-valent iron (nZVI) composite for arsenate i.e., As(V) sorption. We used a range of tools, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) and energy dispersion X-ray (EDS) spectroscopy to characterise the material. SEM and TEM images and elemental mapping of the composite reflect that the smectite layer was surrounded by a chain of iron nanobeads evenly distributed on clay particles, which is quite exceptional among currently available nZVIs. The maximum As(V) sorption capacity of this composite was 23.12 mg/g in the ambient conditions. Using X-ray photoelectron spectroscopy we unveiled chemical states of As and Fe before and after the sorption process. Additionally, the release of iron nanoparticles from the composite at various pHs (3-10) were found negligible, which demonstrates the effectiveness of smec-nZVI to remove As(V) from contaminated water without posing any secondary pollutant.
Collapse
Affiliation(s)
- Kh Ashraf Uz-Zaman
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia; Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Bhabananda Biswas
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia; Future Industries Institute, STEM Unit, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia.
| |
Collapse
|
16
|
Evaluation of Fe-Mg Binary Oxide for As (III) Adsorption-Synthesis, Characterization and Kinetic Modelling. NANOMATERIALS 2021; 11:nano11030805. [PMID: 33801160 PMCID: PMC8004078 DOI: 10.3390/nano11030805] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/01/2021] [Accepted: 03/04/2021] [Indexed: 01/21/2023]
Abstract
Nanotechnology has received much attention in treating contaminated waters. In the present study, a facile co-precipitation method was employed to synthesize a novel iron and magnesium based binary metal oxide using a stoichiometrically fixed amount of FeNO3·9H2O and MgNO3·6H2O in a proportion of molar concentration 1:1 and was later evaluated in removing As (III) from contaminated waters. Characterization of the prepared nanomaterial was done using X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy Dispersive X-ray Analysis (EDAX) and ultraviolet–visible spectrophotometry (UV-VIS). Experimental studies on batch scale were carried out, examining the effect of varying initial concentrations of metal, adsorbent dosage, application time and initial pH on removal efficiency. Arsenic removal increased on increasing adsorbent dosage (0.1–1 g/L) but trend reversed on increasing initial arsenic concentration attaining qmax of 263.20 mg/g. Adsorption was quite efficient in pH range 4–8. Freundlich fitted better for adsorption isotherm along with following Pseudo-2nd order kinetics. The reusability and effect of co-existing ions on arsenic adsorption, namely SO42−, CO32− and PO43− were also explored with reusability in 1st and 2nd cycles attained adsorptive removal up to 77% and 64% respectively. The prepared nano-adsorbent showed promising results in terms of high arsenic uptake (qmax of 263.20 mg/g) along with facile and cost-effective synthesis. Thus, the co-precipitation technique used in this work is a simple one step procedure without any use of any precursor as compared to most of the other procedures used for synthesis.
Collapse
|
17
|
Sheet-on-sheet like calcium ferrite and graphene nanoplatelets nanocomposite: A multifunctional nanocomposite for high-performance supercapacitor and visible light driven photocatalysis. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121646] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
18
|
Foti C, Mineo PG, Nicosia A, Scala A, Neri G, Piperno A. Recent Advances of Graphene-Based Strategies for Arsenic Remediation. Front Chem 2020; 8:608236. [PMID: 33381493 PMCID: PMC7767874 DOI: 10.3389/fchem.2020.608236] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/11/2020] [Indexed: 12/07/2022] Open
Abstract
The decontamination of water containing toxic metals is a challenging problem, and in the last years many efforts have been undertaken to discover efficient, cost-effective, robust, and handy technology for the decontamination of downstream water without endangering human health. According to the World Health Organization (WHO), 180 million people in the world have been exposed to toxic levels of arsenic from potable water. To date, a variety of techniques has been developed to maintain the arsenic concentration in potable water below the limit recommended by WHO (10 μg/L). Recently, a series of technological advancements in water remediation has been obtained from the rapid development of nanotechnology-based strategies that provide a remarkable control over nanoparticle design, allowing the tailoring of their properties toward specific applications. Among the plethora of nanomaterials and nanostructures proposed in the remediation field, graphene-based materials (G), due to their unique physico-chemical properties, surface area, size, shape, ionic mobility, and mechanical flexibility, are proposed for the development of reliable tools for water decontamination treatments. Moreover, an emerging class of 3D carbon materials characterized by the intrinsic properties of G together with new interesting physicochemical properties, such as high porosity, low density, unique electrochemical performance, has been recently proposed for water decontamination. The main design criteria used to develop remediation nanotechnology-based strategies have been reviewed, and special attention has been reserved for the advances of magnetic G and for nanostructures employed in the fabrication of membrane filtration.
Collapse
Affiliation(s)
- Claudia Foti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | | | - Angelo Nicosia
- Department of Chemical Sciences, University of Catania, Catania, Italy
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| |
Collapse
|
19
|
Zhou X, Liang Q, Yang B, Chen Y, Fang Y, Luo H, Liu Y. Rational design an amorphous multifunctional δ-MnO2@Fe/Mg-MIL-88B nanocomposites with tailored components for efficient and rapid removal of arsenic in water. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125141] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
20
|
Das TK, Sakthivel TS, Jeyaranjan A, Seal S, Bezbaruah AN. Ultra-high arsenic adsorption by graphene oxide iron nanohybrid: Removal mechanisms and potential applications. CHEMOSPHERE 2020; 253:126702. [PMID: 32302903 DOI: 10.1016/j.chemosphere.2020.126702] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 03/30/2020] [Accepted: 04/02/2020] [Indexed: 05/27/2023]
Abstract
Iron (Fe)-based adsorbents have been promoted for aqueous arsenic adsorption because of their low cost and potential ease of scale-up in production. However, their field application is, so far, limited because of their low Fe use efficiency (i.e., not all available Fe is used), slow adsorption kinetics, and low adsorption capacity. In this study, we synthesized graphene oxide iron nanohybrid (GFeN) by decorating iron/iron oxide (Fe/FexOy) core-shell structured iron nanoparticles (FeNPs) on the surface of graphene oxide (GO) via a sol-gel process. The deposition of FeNPs on GO for the nanohybrid (GFeN) improves Fe use efficiency and arsenic mobility in the nanohybrid, thereby improving the arsenic removal capacity and kinetics. We achieved removal capacities of 306 mg/g for As(III) and 431 mg/g for As(V) using GFeN. Rapid reduction (>99% in <10 min) of As(III) and As(V) (initial concentration, C0 = 100 μg/L) was achieved with the nanohybrid (250 mg/L). There were no significant interferences by the coexisting anions and organic matters at environmentally relevant concentrations. Based on the experimental data, we have proposed that both electrostatic interaction and surface complexation contributed to ultra-high arsenic removal by GFeN. The GO sheets acted as the reservoirs for the electrons released during surface corrosion of the FeNPs and the electrons were transferred back to the FeNPs to rejuvenate the oxidized surface. The rejuvenated FeNP surface layer helped in additional arsenic removal.
Collapse
Affiliation(s)
- Tonoy K Das
- Nanoenvirology Research Group, Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND, 58105, USA
| | - Tamil S Sakthivel
- Advanced Materials Processing and Analysis Center (AMPAC), Nanoscience and Technology Center (NSTC), Materials Science and Engineering (MSE), University of Central Florida, Orlando, USA
| | - Aadithya Jeyaranjan
- Advanced Materials Processing and Analysis Center (AMPAC), Nanoscience and Technology Center (NSTC), Materials Science and Engineering (MSE), University of Central Florida, Orlando, USA
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center (AMPAC), Nanoscience and Technology Center (NSTC), Materials Science and Engineering (MSE), University of Central Florida, Orlando, USA; College of Medicine, University of Central Florida, Orlando, FL, 32826, USA
| | - Achintya N Bezbaruah
- Nanoenvirology Research Group, Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND, 58105, USA.
| |
Collapse
|
21
|
La DD, Truong TN, Pham TQ, Vo HT, Tran NT, Nguyen TA, Nadda AK, Nguyen TT, Chang SW, Chung WJ, Nguyen DD. Scalable Fabrication of Modified Graphene Nanoplatelets as an Effective Additive for Engine Lubricant Oil. NANOMATERIALS 2020; 10:nano10050877. [PMID: 32370058 PMCID: PMC7279219 DOI: 10.3390/nano10050877] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 02/07/2023]
Abstract
The use of nano-additives is widely recognized as a cheap and effective pathway to improve the performance of lubrication by minimizing the energy loss from friction and wear, especially in diesel engines. In this work, a simple and scalable protocol was proposed to fabricate a graphene additive to improve the engine lubricant oil. Graphene nanoplates (GNPs) were obtained by a one-step chemical exfoliation of natural graphite and were successfully modified with a surfactant and an organic compound to obtain a modified GNP additive, that can be facilely dispersed in lubricant oil. The GNPs and modified GNP additive were characterized using scanning electron microscopy, X-ray diffraction, atomic force microscopy, Raman spectroscopy, and Fourier-transform infrared spectroscopy. The prepared GNPs had wrinkled and crumpled structures with a diameter of 10–30 µm and a thickness of less than 15 nm. After modification, the GNP surfaces were uniformly covered with the organic compound. The addition of the modified GNP additive to the engine lubricant oil significantly enhanced the friction and antiwear performance. The highest reduction of 35% was determined for the wear scar diameter with a GNP additive concentration of approximately 0.05%. The mechanism for lubrication enhancement by graphene additives was also briefly discussed.
Collapse
Affiliation(s)
- Duong Duc La
- Institute of Chemistry and Materials, Nghia Do, Cau Giay, Hanoi 10000, Vietnam; (T.N.T.); (T.Q.P.)
- Correspondence: (D.D.L.); (N.T.T.); or (D.D.N.); Tel.: +84-966-185368 (D.D.L.)
| | - Tuan Ngoc Truong
- Institute of Chemistry and Materials, Nghia Do, Cau Giay, Hanoi 10000, Vietnam; (T.N.T.); (T.Q.P.)
| | - Thuan Q. Pham
- Institute of Chemistry and Materials, Nghia Do, Cau Giay, Hanoi 10000, Vietnam; (T.N.T.); (T.Q.P.)
| | - Hoang Tung Vo
- Environmental Institute, Vietnam Maritime University, Haiphong city 180000, Vietnam;
| | - Nam The Tran
- Environmental Institute, Vietnam Maritime University, Haiphong city 180000, Vietnam;
- Correspondence: (D.D.L.); (N.T.T.); or (D.D.N.); Tel.: +84-966-185368 (D.D.L.)
| | - Tuan Anh Nguyen
- Advanced Nanomaterial Lab, Applied Nano Technology Jsc., Xuan La, Tay Ho, Hanoi 100000, Vietnam;
| | - Ashok Kumar Nadda
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat 173215, India;
| | - Thanh Tung Nguyen
- Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam;
| | - S. Woong Chang
- Department of Environmental Energy Engineering, Kyonggi University, Suwon 16227, Korea; (S.W.C.); (W.J.C.)
| | - W. Jin Chung
- Department of Environmental Energy Engineering, Kyonggi University, Suwon 16227, Korea; (S.W.C.); (W.J.C.)
| | - D. Duc Nguyen
- Institution of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
- Correspondence: (D.D.L.); (N.T.T.); or (D.D.N.); Tel.: +84-966-185368 (D.D.L.)
| |
Collapse
|
22
|
Gusain R, Kumar N, Ray SS. Recent advances in carbon nanomaterial-based adsorbents for water purification. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213111] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
23
|
Sherlala AIA, Raman AAA, Bello MM, Buthiyappan A. Adsorption of arsenic using chitosan magnetic graphene oxide nanocomposite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 246:547-556. [PMID: 31202019 DOI: 10.1016/j.jenvman.2019.05.117] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/25/2019] [Accepted: 05/25/2019] [Indexed: 05/04/2023]
Abstract
Chitosan-magnetic-graphene oxide (CMGO) nanocomposite was prepared for arsenic adsorption. The nanocomposite was characterized through BET, FTIR, FESEM, EDX, and VSM analyses. These characterizations confirmed the formation of CMGO nanocomposites with high specific surface area (152.38 m2/g) and excellent saturation magnetization (49.30 emu/g). Batch adsorption experiments were conducted to evaluate the performance of the nanocomposite in the adsorption of arsenic from aqueous solution. The effects of operational parameters, adsorption kinetic, equilibrium isotherm and thermodynamics were evaluated. The removal efficiency of arsenic increased with increasing adsorbent dosage and contact time. However, the effect of pH followed a different pattern, with the removal efficiency increasing from acidic to neutral pH, and then decreasing at alkaline conditions. The highest adsorption capacity (45 mg/g) and removal efficiency (61%) were obtained at pH 7.3. The adsorption kinetic followed a pseudo-second-order kinetic model. The analysis of adsorption isotherm shows that the adsorption data fitted well to Langmuir isotherm model, indicating a homogeneous process. Thermodynamic analysis shows that the adsorption of As(III) is exothermic and spontaneous. The superparamagnetic properties of the nanocomposite enabled the separation and recovery of the nanoparticles using an external magnetic field. Thus, the developed nanocomposite has a potential for arsenic remediation.
Collapse
Affiliation(s)
- A I A Sherlala
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia; Department of Chemical Engineering, College of Engineering Technology-Janzour, Libya
| | - A A A Raman
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - M M Bello
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - A Buthiyappan
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| |
Collapse
|
24
|
Bangari RS, Singh AK, Namsani S, Singh JK, Sinha N. Magnetite-Coated Boron Nitride Nanosheets for the Removal of Arsenic(V) from Water. ACS APPLIED MATERIALS & INTERFACES 2019; 11:19017-19028. [PMID: 31017758 DOI: 10.1021/acsami.8b22401] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It is widely known that the existence of arsenic (As) in water negatively affects humans and the environment. We report the synthesis, characterization, and application of boron nitride nanosheets (BNNSs) and Fe3O4-functionalized BNNS (BNNS-Fe3O4) nanocomposite for removal of As(V) ions from aqueous systems. The morphology, surface properties, and compositions of synthesized nanomaterials were examined using scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction, surface area analysis, zero-point charge, and magnetic moment determination. The BNNS-Fe3O4 nanocomposites have a specific surface area of 119 m2 g-1 and a high saturation magnetization of 49.19 emu g-1. Due to this strong magnetic property at room temperature, BNNS-Fe3O4 can be easily separated in solution by applying an external magnetic field. From the activation energies, it was found that the adsorption of As(V) ions on BNNSs and BNNS-Fe3O4 was due to physical and chemical adsorption, respectively. The maximum adsorption capacity of BNNS-Fe3O4 nanocomposite for As(V) ions has been found to be 26.3 mg g-1, which is 5 times higher than that of unmodified BNNSs (5.3 mg g-1). This closely matches density functional theory simulations, where it is found that binding energies between BNNS-Fe3O4 nanocomposite and As(OH)5 are 5 times higher than those between BNNSs and As(OH)5, implying 5 times higher adsorption capacity of BNNS-Fe3O4 nanocomposite than unmodified BNNSs. More importantly, it was observed that the synthesized BNNS-Fe3O4 nanocomposite could reduce As(V) ion concentration from 856 ppb in a solution to below 10 ppb (>98.83% removal), which is the permissible limit according to World Health Organization recommendations. Finally, the synthesized adsorbent showed both separation and regeneration properties. These findings demonstrate the potential of BNNS-Fe3O4 nanocomposite for commercial application in separation of As(V) ions from potable and waste water streams.
Collapse
|
25
|
Safi SR, Gotoh T, Iizawa T, Nakai S. Development and regeneration of composite of cationic gel and iron hydroxide for adsorbing arsenic from ground water. CHEMOSPHERE 2019; 217:808-815. [PMID: 30458416 DOI: 10.1016/j.chemosphere.2018.11.050] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/01/2018] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
Globally, arsenic contaminated groundwater is a serious concern for human health. Previous studies have developed various methods to remove arsenic. But, most of them fail to selectively adsorb arsenic and regenerate. In this study, we developed an adsorbent, a cationic polymer gel loaded with iron hydroxide, which can adsorb arsenic from groundwater more effectively than the other adsorbents. The cationic polymer gel is N,N-dimethylamino propylacrylamide, methyl chloride quaternary (DMAPAAQ). The preparation of the gel is different from the other polymer gels used for adsorption of arsenic and other metals, and it ensures that the gel contains 53.7% FeOOH particles. It should also provide good selectivity, be simple to use and be cost-effective in terms of reusability. The study showed that the gel selectively adsorbed arsenic effectively at neutral pH levels. The results demonstrate that the maximum amount of As(V) adsorption was 123.4 mg/g, which is higher than the other adsorbents. In addition, the gel adsorbed As(V) selectively in the presence of Sulphate. Also, regeneration of the gel was performed for eight consecutive days with 87.6% effectiveness. Additionally, the adsorption mechanism of this gel composite and time required for reaching the equilibrium adsorption is discussed in this paper.
Collapse
Affiliation(s)
- Syed Ragib Safi
- Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi, Hiroshima, Hiroshima, 739-8527, Japan
| | - Takehiko Gotoh
- Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi, Hiroshima, Hiroshima, 739-8527, Japan.
| | - Takashi Iizawa
- Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi, Hiroshima, Hiroshima, 739-8527, Japan
| | - Satoshi Nakai
- Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi, Hiroshima, Hiroshima, 739-8527, Japan
| |
Collapse
|
26
|
A New Approach of Fabricating Graphene Nanoplates@Natural Rubber Latex Composite and Its Characteristics and Mechanical Properties. Mol Vis 2018. [DOI: 10.3390/c4030050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Graphene has been demonstrated to be one of the most promising candidates to use as filler to improve the electrical, thermal, chemical and mechanical properties of natural rubber due to exceptional high surface area, superior electrical and thermal conductivity, and remarkable gas impermeability resistance. In this study, graphene nanoplates (GNPs) were mass-produced by a one-step chemical exfoliation of natural graphite and used as a filler for the fabrication of GNPs@natural rubber composite by a simple mixing method. The resultant GNPs/rubber composite was characterized by using scanning electron microscopy (SEM), and a rheometer. The prepared graphene nanoplates had a thickness of less than 10 nm and a lateral size of tens of microns. The GNPs@rubber composite revealed an exceptional improvement of abrasion loss up to seven to ten fold, along with an approximately 400%, 200% and 30% increment of elongation at break, tear strength and tensile strength, respectively. Other mechanical properties, such as hardness, compression set and rebound, as well as the effect of the GNPs loadings on the mechanical properties of the composite, were also investigated in detail.
Collapse
|
27
|
Singh P, Sharma S, Chauhan K, Singhal RK. Fabrication of Economical Thiol-Tethered Bifunctional Iron Composite as Potential Commercial Applicant for Arsenic Sorption Application. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03273] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Prem Singh
- School of Chemistry, Shoolini University, Solan 173229, India
| | - Sumit Sharma
- School of Chemistry, Shoolini University, Solan 173229, India
| | - Kalpana Chauhan
- School of Chemistry, Shoolini University, Solan 173229, India
| | - Rakesh Kumar Singhal
- Analytical Chemistry Division, Bhabha Atomic Research Center, Mumbai, 4000085, India
| |
Collapse
|
28
|
Ur Rehman S, Khan AR, Sahiner M, Sengel SB, Aktas N, Siddiq M, Sahiner N. Removal of arsenate and dichromate ions from different aqueous media by amine based p(TAEA-co-GDE) microgels. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 197:631-641. [PMID: 28432888 DOI: 10.1016/j.jenvman.2017.04.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 04/13/2017] [Accepted: 04/16/2017] [Indexed: 06/07/2023]
Abstract
In this work, microgels based on tris(2-aminoethyl) amine (TAEA) and glycerol diglycidyl ether (GDE) via simple microemulsion polymerization was prepared as p(TAEA-co-GDE) microgels were used as adsorbent for removal of dichromate (Cr (VI)) and arsenate (As (V)) ions from different aqueous environments. The p(TAEA-co-GDE) microgels were demonstrated very efficient adsorption capacity for Cr (VI), and As (V) that are 164.98 mg/g, and 123.64 mg/g from distilled (DI) water, respectively. The effect of the medium pH on the adsorption capacity of p(TAEA-co-GDE) microgels for Cr (VI) and As (V) ions were investigated. The maximum adsorption capacity was obtained at pH 4.0 for both ions with maximum adsorbed amounts of 160.62, and 98.72 mg/g, respectively. In addition, the microgels were also shown moderate adsorption capacity for Cr (VI) and As (V) from other water sources; tap water with 115.18 mg/g and 82.86 mg/g, sea water with 64.24 mg/g and 46.88 mg/g and creek water with 73.52 mg/g and 59.33 mg/g, respectively. Moreover, the increase in adsorbent dose from 0.025 to 0.125 g enhanced % adsorption of Cr (VI) from 54.13 to 98.03, and As (V) from % 26.72-98.70, respectively. For the adsorption process Langmuir and Freundlich adsorption isotherms were applied and found that Langmuir adsorption isotherm with R2 value of 0.99 for both the metal ions are suitable. Moreover, the experimental adsorption capacities of Cr (VI) and As (V) were found very close to the theoretical values calculated from Langmuir adsorption isotherm. More importantly, the microgels were made magnetic responsive to recover them easily from adsorption medium for reuse studies by applying external magnetic field with little decrease in adsorption capacity. Additionally, reusability of p(TAEA-co-GDE) microgels was also evaluated for adsorption of Cr (VI) and As (V) from DI water.
Collapse
Affiliation(s)
- Saif Ur Rehman
- Department of Chemistry, COMSATS Institute of Information Technology, Kyber Pakhtunkhwa, Abbottabad, 22060, Pakistan
| | - Abdur Rahman Khan
- Department of Chemistry, COMSATS Institute of Information Technology, Kyber Pakhtunkhwa, Abbottabad, 22060, Pakistan
| | - Mehtap Sahiner
- Ege University Leather Engineering, Bornova, Izmir, 35100, Turkey
| | - Sultan B Sengel
- Department of Chemistry, Faculty of Science & Arts, And Nanoscience and Technology Research and Application Center (NTRAC), Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey
| | - Nahit Aktas
- Chemical Engineering Department, Yuzuncu Yil University, Campus, Van, 65080, Turkey
| | - Muhammad Siddiq
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Nurettin Sahiner
- Department of Chemistry, Faculty of Science & Arts, And Nanoscience and Technology Research and Application Center (NTRAC), Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey.
| |
Collapse
|
29
|
La DD, Nguyen TA, Jones LA, Bhosale SV. Graphene-Supported Spinel CuFe₂O₄ Composites: Novel Adsorbents for Arsenic Removal in Aqueous Media. SENSORS (BASEL, SWITZERLAND) 2017; 17:E1292. [PMID: 28587257 PMCID: PMC5492396 DOI: 10.3390/s17061292] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/02/2017] [Accepted: 06/02/2017] [Indexed: 01/15/2023]
Abstract
A graphene nanoplate-supported spinel CuFe₂O₄ composite (GNPs/CuFe₂O₄) was successfully synthesized by using a facile thermal decomposition route. Scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Electron Dispersive Spectroscopy (EDS), X-ray diffraction (XRD) and X-ray Photoelectron Spectroscopy (XPS) were employed to characterize the prepared composite. The arsenic adsorption behavior of the GNPs/CuFe₂O₄ composite was investigated by carrying out batch experiments. Both the Langmuir and Freundlich models were employed to describe the adsorption isotherm, where the sorption kinetics of arsenic adsorption by the composite were found to be pseudo-second order. The selectivity of the adsorbent toward arsenic over common metal ions in water was also demonstrated. Furthermore, the reusability and regeneration of the adsorbent were investigated by an assembled column filter test. The GNPs/CuFe₂O₄ composite exhibited significant, fast adsorption of arsenic over a wide range of solution pHs with exceptional durability, selectivity, and recyclability, which could make this composite a very promising candidate for effective removal of arsenic from aqueous solution. The highly sensitive adsorption of the material toward arsenic could be potentially employed for arsenic sensing.
Collapse
Affiliation(s)
- Duong Duc La
- School of Science, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia.
| | - Tuan Anh Nguyen
- Applied Nanomaterial Laboratory, ANTECH, Hanoi 100000, Vietnam.
| | - Lathe A Jones
- School of Science, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia.
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia.
| | - Sheshanath V Bhosale
- School of Science, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia.
| |
Collapse
|
30
|
La DD, Thi HPN, Nguyen TA, Bhosale SV. Effective removal of Pb(ii) using a graphene@ternary oxides composite as an adsorbent in aqueous media. NEW J CHEM 2017. [DOI: 10.1039/c7nj03064a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot hydrothermal method to prepare a graphene@Fe–Mg–Cu ternary oxide composite and the proposed adsorption mechanism for removal of Pb(ii) ions.
Collapse
Affiliation(s)
- Duong Duc La
- School of Science
- RMIT University
- Melbourne Victoria 3001
- Australia
| | | | | | | |
Collapse
|