1
|
Silambarasan R, Sai Sundar Perisetti US, Pavalamalar S, Anbalagan K. Enhanced efficiency of photocatalytically synthesised Co 3+/Co 2+-incorporated CeO 2/SnO 2 nanocomposite and supercapacitor studies. RSC Adv 2024; 14:4153-4164. [PMID: 38292258 PMCID: PMC10826469 DOI: 10.1039/d3ra07947c] [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: 11/20/2023] [Accepted: 12/18/2023] [Indexed: 02/01/2024] Open
Abstract
The photochemical reduction approach, distilled H2O with PriOH as the solvent medium, was used to create and characterise the conversion of Co3+ to Co2+ integrated on CeO2/SnO2. The PXRD, IR, SEM, HR-TEM, VSM, and XPS results show that the materials generated have appropriate crystallisation form and retain the hollow spherical structure of Co-CeO2/SnO2. The performance of several UV-light energetic photocatalysts and the reaction pathways for inorganic complex degradation are addressed, emphasising the main elements contributing to their mineralisation. Reaction mechanisms, identification and quantification of degradation intermediates, and effects of reactive active species were described and analysed for each modelled target inorganic pollutant category. The ternary (Co3+/Co2+)/CeO2/SnO2 materials were hypothesised to improve the photocatalytic activity by increasing the transport rate of eCB- impurities as a result of accelerating the practical separation of electron-hole (e-/h+) pairs. Then, it exhibits high cycling stability by successfully reducing the pulverisation of Co-CeO2/SnO2 electrode materials due to volume expansion and a high specific capacity of 827 F g-1(1 A g-1) while maintaining a high current density of 5 A g-1. GCD and impedance spectroscopy studies were also carried out to analyse charge-discharge cycles and sample stability. This exceptional electrochemical performance suggests that Co-CeO2/SnO2 are promising for high-performance energy storage systems.
Collapse
Affiliation(s)
- R Silambarasan
- Department of Chemistry, Pondicherry University Pondicherry 605014 India +91 413 2654509
| | | | - S Pavalamalar
- Department of Chemistry, Pondicherry University Pondicherry 605014 India +91 413 2654509
| | - K Anbalagan
- Department of Chemistry, Pondicherry University Pondicherry 605014 India +91 413 2654509
| |
Collapse
|
2
|
Yatheendran A, Rajan R, Sandhyarani N. Synergistic Effect of Oxygen Vacancy-Rich SnO 2 and AgCl in the Augmentation of Sustained Oxygen Reduction Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11708-11719. [PMID: 37439197 DOI: 10.1021/acs.langmuir.3c01311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Developing a stable and methanol-tolerant electrocatalyst for a sustained oxygen reduction reaction (ORR) is of great importance for advancing direct methanol fuel cell applications. The silver-based electrocatalysts are particularly interesting among the promising non-Pt-based electrocatalysts for ORR. Herein, we report a single-step synthesis of a composite of AgCl and SnO2 with oxygen vacancy (AgCl-SnO2(VO)), which exhibits sustained and selective catalytic activity for the ORR along with excellent durability. Hydrothermal synthesis generates oxygen vacancies within the material and facilitates a strong interaction between AgCl and SnO2(VO), which effectively augments the ORR activity and the long-term stability of the composite. The composite exhibits remarkable methanol tolerance, as evidenced by a meager shift of only 0.002 V in the half-wave potential. Furthermore, the composite demonstrates excellent durability, with no noticeable changes in onset and half-wave potential even after 2500 cycles. The cost-effectiveness, durability, and ORR selectivity of this composite hold great promise toward contributing to the advancement of clean energy technology.
Collapse
Affiliation(s)
- Anagha Yatheendran
- Nanoscience Research Laboratory, School of Materials Science and Engineering, National Institute of Technology Calicut, Kozhikode, Kerala, India 673601
| | - Rahul Rajan
- Nanoscience Research Laboratory, School of Materials Science and Engineering, National Institute of Technology Calicut, Kozhikode, Kerala, India 673601
| | - N Sandhyarani
- Nanoscience Research Laboratory, School of Materials Science and Engineering, National Institute of Technology Calicut, Kozhikode, Kerala, India 673601
| |
Collapse
|
3
|
Two Step Fabrication of Nano-ZnO-α-FeOOH Composite for Experimental and Modeling Studies of Removal of Indigo Carmine and Alizarin Red S in Batch Process. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-022-00567-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
4
|
Peramune D, Manatunga DC, Dassanayake RS, Premalal V, Liyanage RN, Gunathilake C, Abidi N. Recent advances in biopolymer-based advanced oxidation processes for dye removal applications: A review. ENVIRONMENTAL RESEARCH 2022; 215:114242. [PMID: 36067842 DOI: 10.1016/j.envres.2022.114242] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/03/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Over the past few years, synthetic dye-contaminated wastewater has attracted considerable global attention due to the low biodegradability and the ability of organic dyes to persist and remain toxic, causing numerous health and environmental concerns. As a result of the recalcitrant nature of those complex organic dyes, the remediation of wastewater using conventional wastewater treatment techniques is becoming increasingly challenging. In recent years, advanced oxidation processes (AOPs) have emerged as a potential alternative to treat organic dyestuffs discharged from industries. The most widely employed AOPs include photocatalysis, ozonation, Fenton oxidation, electrochemical oxidation, catalytic heterogeneous oxidation, and ultrasound irradiation. These processes involve the generation of highly reactive radicals to oxidize organic dyes into innocuous minerals. However, many conventional AOPs suffer from several setbacks, including the high cost, high consumption of reagents and substrates, self-agglomeration of catalysts, limited reusability, and the requirement of light, ultrasound, or electricity. Therefore, there has been significant interest in improving the performance of conventional AOPs using biopolymers and heterogeneous catalysts such as metal oxide nanoparticles (MONPs). Biopolymers have been widely considered in developing green, sustainable, eco-friendly, and low-cost AOP-based dye removal technologies. They inherit intriguing properties like biodegradability, renewability, nontoxicity, relative abundance, and sorption. In addition, the immobilization of catalysts on biopolymer supports has been proven to possess excellent catalytic activity and turnover numbers. The current review provides comprehensive coverage of different AOPs and how efficiently biopolymers, including cellulose, chitin, chitosan, alginate, gelatin, guar gum, keratin, silk fibroin, zein, albumin, lignin, and starch, have been integrated with heterogeneous AOPs in dye removal applications. This review also discusses the general degradation mechanisms of AOPs, applications of biopolymers in AOPs and the roles of biopolymers in AOPs-based dye removal processes. Furthermore, key challenges and future perspectives of biopolymer-based AOPs have also been highlighted.
Collapse
Affiliation(s)
- Dinusha Peramune
- Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka
| | - Danushika C Manatunga
- Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka
| | - Rohan S Dassanayake
- Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka.
| | - Vikum Premalal
- Department of Civil and Environmental Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka
| | - Renuka N Liyanage
- Department of Materials and Mechanical Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka
| | - Chamila Gunathilake
- Department of Material and Nanoscience Technology, Faculty of Technology, Wayamba University of Sri Lanka, Kuliyapitiya, 60200, Sri Lanka
| | - Noureddine Abidi
- Fiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA
| |
Collapse
|
5
|
Mashentseva AA, Aimanova NA, Parmanbek N, Temirgaziyev BS, Barsbay M, Zdorovets MV. Serratula coronata L. Mediated Synthesis of ZnO Nanoparticles and Their Application for the Removal of Alizarin Yellow R by Photocatalytic Degradation and Adsorption. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193293. [PMID: 36234421 PMCID: PMC9565845 DOI: 10.3390/nano12193293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/13/2022] [Accepted: 09/19/2022] [Indexed: 05/08/2023]
Abstract
In this study, the potential of biogenic zinc oxide nanoparticles (ZnO NPs) in the removal of alizarin yellow R (AY) from aqueous solutions by photocatalytic degradation, as well as adsorption, was investigated. The synthesized ZnO NPs were prepared by the simple wet-combustion method using the plant extract of Serratula coronata L. as a reducing and stabilizing agent and characterized by powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray and X-ray photoelectron spectroscopy. Photocatalytic degradation of AY was monitored by UV-visible spectroscopy and the effects of parameters, such as light source type (UV-, visible- and sunlight), incubation time, pH, catalyst dosage and temperature on degradation were investigated. It was demonstrated that the source of light plays an important role in the efficiency of the reaction and the UV-assisted degradation of AY was the most effective, compared to the others. The degradation reaction of AY was found to follow the Langmuir-Hinshelwood mechanism and a pseudo-first-order kinetic model. The degradation kinetics of AY accelerated with increasing temperature, and the lowest activation energy (Ea) was calculated as 3.4 kJ/mol for the UV-light irradiation system, while the Ea values were 4.18 and 7.37 kJ/mol for visible light and sunlight, respectively. The dye removal by the adsorption process was also affected by several parameters, such as pH, sorbent amount and contact time. The data obtained in the kinetics study fit the pseudo-second-order equation best model and the rate constant was calculated as 0.001 g/mg·min. The isotherm analysis indicated that the equilibrium data fit well with the Freundlich isotherm model. The maximum adsorption capacity of AY on biogenic ZnO NPs was 5.34 mg/g.
Collapse
Affiliation(s)
- Anastassiya A. Mashentseva
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
- Correspondence:
| | - Nurgulim A. Aimanova
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
| | - Nursanat Parmanbek
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
- Department of Chemistry, L.N. Gumilyov Eurasian National University, Nur-Sultan 010008, Kazakhstan
| | | | - Murat Barsbay
- Department of Chemistry, Hacettepe University, Ankara 06800, Turkiye
| | - Maxim V. Zdorovets
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
| |
Collapse
|
6
|
Rahimi B, Rahimi NR, Ebrahimi A. Catalytic reduction of hazardous acid orange 10 dye by BiVO4/TiO2 nanocrystalline heterojunction and influence of aeration, FeSO4, H2O2 and FeCl3 on removal efficiency: A novel and environmentally friendly process. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
|
7
|
Yin Y, Xu G, Xin Z, Liu Y, He X, Zhang H. Synthesis, characterization and photocatalytic degradation of dyestuffs with a composite material, 3-nOCoPc/SnO 2. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2058396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yanbing Yin
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China
| | - Guopeng Xu
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China
| | - Zhaosong Xin
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China
| | - Yang Liu
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China
| | - Xifeng He
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China
| | - Hongbo Zhang
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China
| |
Collapse
|
8
|
Fathy MA, Kamel AH, Hassan SSM. Novel magnetic nickel ferrite nanoparticles modified with poly(aniline- co-o-toluidine) for the removal of hazardous 2,4-dichlorophenol pollutant from aqueous solutions. RSC Adv 2022; 12:7433-7445. [PMID: 35424706 PMCID: PMC8982154 DOI: 10.1039/d2ra00034b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/23/2022] [Indexed: 11/21/2022] Open
Abstract
Chlorinated organic and phenolic compounds are still purely studied by many researchers because of their severe damage to the aquatic environment and their carcinogenic effect on many living organisms. Therefore, there is a great interest in removing these environmental pollutants from aqueous mediums by easy and inexpensive methods. Herein, novel nickel ferrite (NiFe2O4) nano composite modified with poly(aniline-co-o-toluidine) (PAOT) is prepared, characterized, and used for the removal of 2,4-dichlorophenol (2,4-DCP) as an organic chlorinated environmental pollutant. The morphological properties of the composite are characterized by Fourier transform infrared spectrometry (FTIR), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), and Brunauer-Emmett-Teller (BET) methods. The prepared composite is tested for the removal of the hazardous dichlorophenol pollutant from aqueous solutions. Under optimized conditions and with effective control of parameters including, contact time, pH of the test solution, adsorbent dose, and temperature, over 83% of the pollutant is adsorbed and removed. The adsorption capacity is 162 mg g-1. Adsorption kinetics, adsorption isotherm and some physicochemical parameters of the reaction are evaluated. The Redlich-Peterson isothermal model is the appropriate model for describing the adsorption process. These results indicate that NiFe2O4/PAOT nanocomposites are promising adsorbents for the removal of persistent organic pollutants (e.g., DCP) from aqueous solutions. The results also reveal that modification of NiFe2O4 particles with poly(aniline-co-o-toluidine) (PAOT) significantly enhances the adsorption capacity of the adsorbent. This is probably due to the electrostatic attraction and non-covalent interactions (e.g. π-π) between the aromatic rings in both dichlorophenol and poly(aniline-co-o-toluidine) copolymer. Advantages offered by using NiFe2O4/PAOT nanocomposites are the high stability, reasonable efficiency, reusability for at least five adsorption-desorption cycles and the ability to remove the adsorbent from aqueous solutions for reuse using an external magnetic field.
Collapse
Affiliation(s)
| | - Ayman H Kamel
- Department of Chemistry, Faculty of Science, Ain Shams University Cairo 11566 Egypt
- Chemistry Department, College of Science, University of Bahrain Sakhir 32038 Kingdom of Bahrain
| | - Saad S M Hassan
- Department of Chemistry, Faculty of Science, Ain Shams University Cairo 11566 Egypt
| |
Collapse
|
9
|
Ali NMS, Vemuri S, Bhagat D, Karam A, Pati R, Ray A, Mukhopadhyay I. DC and DP polarographic studies to explore the intermediate species form and operating conditions effects on electrodeposition of Cu from Cu(II) in the presence of alizarin red S. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-01988-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
10
|
Abdullah TA, Juzsakova T, Rasheed RT, Mallah MA, Salman AD, Cuong LP, Jakab M, Zsirka B, Kułacz K, Sebestyén V. V 2O 5, CeO 2 and Their MWCNTs Nanocomposites Modified for the Removal of Kerosene from Water. NANOMATERIALS 2022; 12:nano12020189. [PMID: 35055208 PMCID: PMC8778115 DOI: 10.3390/nano12020189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/22/2021] [Accepted: 12/29/2021] [Indexed: 02/06/2023]
Abstract
In this paper, the application of multiwalled carbon nanotubes (MWCNTs) based on metal oxide nanocomposites as adsorbents for the removal of hydrocarbons such as kerosene from water was investigated. Functionalized MWCNTs were obtained by chemical oxidation using concentrated sulfuric and nitric acids. V2O5, CeO2, and V2O5:CeO2 nanocomposites were prepared using the hydrothermal method followed by deposition of these oxides over MWCNTs. Individual and mixed metal oxides, fresh MWCNTs, and metal oxide nanoparticle-doped MWCNTs using different analysis techniques were characterized. XRD, TEM, SEM, EDX, AFM, Raman, TG/DTA, and BET techniques were used to determine the structure as well as chemical and morphological properties of the newly prepared adsorbents. Fresh MWCNTs, Ce/MWCNTs, V/MWCNTs, and V:Ce/MWCNTs were applied for the removal of kerosene from a model solution of water. GC analysis indicated that high kerosene removal efficiency (85%) and adsorption capacity (4270 mg/g) after 60 min of treatment were obtained over V:Ce/MWCNTs in comparison with fresh MWCNTs, Ce/MWCNTs and V/MWCNTs. The kinetic data were analyzed using the pseudo-first order, pseudo-second order, and intra-particle diffusion rate equations.
Collapse
Affiliation(s)
- Thamer Adnan Abdullah
- Sustainability Solutions Research Lab, Bio-, Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary; (T.J.); (A.D.S.); (V.S.)
- Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad P.O. Box 19006, Iraq;
- Correspondence:
| | - Tatjána Juzsakova
- Sustainability Solutions Research Lab, Bio-, Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary; (T.J.); (A.D.S.); (V.S.)
| | - Rashed Taleb Rasheed
- Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad P.O. Box 19006, Iraq;
| | - Muhammad Ali Mallah
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan;
| | - Ali Dawood Salman
- Sustainability Solutions Research Lab, Bio-, Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary; (T.J.); (A.D.S.); (V.S.)
- Department of Chemical and Petroleum Refining Engineering, College of Oil and Gas Engineering, Basra University, Basra P.O. Box 61004, Iraq
| | - Le Phuoc Cuong
- Department of Environmental Management, Faculty of Environment, The University of Danang—University of Science and Technology, Danang 550000, Vietnam;
| | - Miklós Jakab
- Engineering Research and Development Centre, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary;
| | - Balázs Zsirka
- Research Group of Analytical Chemistry, Laboratory for Surfaces and Nanostructures, Center for Natural Sciences, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary;
| | - Karol Kułacz
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland;
| | - Viktor Sebestyén
- Sustainability Solutions Research Lab, Bio-, Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary; (T.J.); (A.D.S.); (V.S.)
| |
Collapse
|
11
|
Cuttlefish bone biowaste for production of holey aragonitic sheets and mesoporous mayenite-embedded Ag2CO3 nanocomposite: Towards design high-performance adsorbents and visible-light photocatalyst for detoxification of dyes wastewater and waste oil recovery. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
12
|
Al-Hada NM, Md. Kasmani R, Kasim H, Al-Ghaili AM, Saleh MA, Banoqitah EM, Alhawsawi AM, Baqer AA, Liu J, Xu S, Li Q, Noorazlan AM, Ahmed AAA, Flaifel MH, Paiman S, Nazrin N, Ali Al-Asbahi B, Wang J. The Effect of Precursor Concentration on the Particle Size, Crystal Size, and Optical Energy Gap of Ce xSn 1-xO 2 Nanofabrication. NANOMATERIALS 2021; 11:nano11082143. [PMID: 34443973 PMCID: PMC8401046 DOI: 10.3390/nano11082143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/14/2021] [Accepted: 08/14/2021] [Indexed: 12/25/2022]
Abstract
In the present work, a thermal treatment technique is applied for the synthesis of CexSn1-xO2 nanoparticles. Using this method has developed understanding of how lower and higher precursor values affect the morphology, structure, and optical properties of CexSn1-xO2 nanoparticles. CexSn1-xO2 nanoparticle synthesis involves a reaction between cerium and tin sources, namely, cerium nitrate hexahydrate and tin (II) chloride dihydrate, respectively, and the capping agent, polyvinylpyrrolidone (PVP). The findings indicate that lower x values yield smaller particle size with a higher energy band gap, while higher x values yield a larger particle size with a smaller energy band gap. Thus, products with lower x values may be suitable for antibacterial activity applications as smaller particles can diffuse through the cell wall faster, while products with higher x values may be suitable for solar cell energy applications as more electrons can be generated at larger particle sizes. The synthesized samples were profiled via a number of methods, such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR). As revealed by the XRD pattern analysis, the CexSn1-xO2 nanoparticles formed after calcination reflect the cubic fluorite structure and cassiterite-type tetragonal structure of CexSn1-xO2 nanoparticles. Meanwhile, using FT-IR analysis, Ce-O and Sn-O were confirmed as the primary bonds of ready CexSn1-xO2 nanoparticle samples, whilst TEM analysis highlighted that the average particle size was in the range 6-21 nm as the precursor concentration (Ce(NO3)3·6H2O) increased from 0.00 to 1.00. Moreover, the diffuse UV-visible reflectance spectra used to determine the optical band gap based on the Kubelka-Munk equation showed that an increase in x value has caused a decrease in the energy band gap and vice versa.
Collapse
Affiliation(s)
- Naif Mohammed Al-Hada
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China; (J.L.); (S.X.); (Q.L.)
- School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai, Johor Bahru 81310, Malaysia; (R.M.K.); (M.A.S.)
- Department of Physics, Faculty of Applied Science, Thamar University, Dhamar 87246, Yemen;
- Correspondence: (N.M.A.-H.); (H.K.); (A.M.A.-G.); (J.W.)
| | - Rafiziana Md. Kasmani
- School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai, Johor Bahru 81310, Malaysia; (R.M.K.); (M.A.S.)
| | - Hairoladenan Kasim
- College of Computing & Informatics (CCI), Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
- Correspondence: (N.M.A.-H.); (H.K.); (A.M.A.-G.); (J.W.)
| | - Abbas M. Al-Ghaili
- Institute of Informatics and Computing in Energy (IICE), Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
- Correspondence: (N.M.A.-H.); (H.K.); (A.M.A.-G.); (J.W.)
| | - Muneer Aziz Saleh
- School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai, Johor Bahru 81310, Malaysia; (R.M.K.); (M.A.S.)
| | - Essam M. Banoqitah
- Department of Nuclear Engineering, Faculty of Engineering, K. A. CARE Energy Research and Innovation Center, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia; (E.M.B.); (A.M.A.)
| | - Abdulsalam M. Alhawsawi
- Department of Nuclear Engineering, Faculty of Engineering, K. A. CARE Energy Research and Innovation Center, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia; (E.M.B.); (A.M.A.)
- Center for Training & Radiation Prevention, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Anwar Ali Baqer
- Department of Physics, Faculty of Science for Women, University of Baghdad, Baghdad 10071, Iraq;
| | - Jian Liu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China; (J.L.); (S.X.); (Q.L.)
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China; (J.L.); (S.X.); (Q.L.)
| | - Qiang Li
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China; (J.L.); (S.X.); (Q.L.)
| | - Azlan Muhammad Noorazlan
- Physics Department, Faculty of Science and Mathematics, University Pendidikan Sultan Idris, Tanjong Malim 35900, Malaysia;
| | - Abdullah A. A. Ahmed
- Department of Physics, Faculty of Applied Science, Thamar University, Dhamar 87246, Yemen;
- Fachbereich Physik, Center for Hybrid Nanostructures (CHyN), Universität Hamburg, 20146 Hamburg, Germany
| | - Moayad Husein Flaifel
- Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
- Basic and Applied Scientific Research Center, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Suriati Paiman
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Malaysia; (S.P.); (N.N.)
| | - Nazirul Nazrin
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Malaysia; (S.P.); (N.N.)
| | - Bandar Ali Al-Asbahi
- Department of Physics & Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Jihua Wang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China; (J.L.); (S.X.); (Q.L.)
- Correspondence: (N.M.A.-H.); (H.K.); (A.M.A.-G.); (J.W.)
| |
Collapse
|
13
|
H. Kamel A, Hassan AA, Amr AEGE, El-Shalakany HH, A. Al-Omar M. Synthesis and Characterization of CuFe 2O 4 Nanoparticles Modified with Polythiophene: Applications to Mercuric Ions Removal. NANOMATERIALS 2020; 10:nano10030586. [PMID: 32210136 PMCID: PMC7153709 DOI: 10.3390/nano10030586] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 12/30/2022]
Abstract
In this research, CuFe2O4 nanoparticles were synthesized by co-precipitation methods and modified by coating with thiophene for removal of Hg(II) ions from aqueous solution. CuFe2O4 nanoparticles, with and without thiophene, were characterized by x-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), energy dispersive x-ray (EDX), high-resolution transmission electron microscopy (HRTEM) and Brunauer-Emmett-Teller (BET). Contact time, adsorbent dose, solution pH, adsorption kinetics, adsorption isotherm and recyclability were studied. The maximum adsorption capacity towards Hg2+ ions was 7.53 and 208.77 mg/g for CuFe2O4 and CuFe2O4@Polythiophene composite, respectively. Modification of CuFe2O4 nanoparticles with thiophene revealed an enhanced adsorption towards Hg2+ removal more than CuFe2O4 nanoparticles. The promising adsorption performance of Hg2+ ions by CuFe2O4@Polythiophene composite generates from soft acid-soft base strong interaction between sulfur group of thiophene and Hg(II) ions. Furthermore, CuFe2O4@Polythiophene composite has both high stability and reusability due to its removal efficiency, has no significant decrease after five adsorption-desorption cycles and can be easily removed from aqueous solution by external magnetic field after adsorption experiments took place. Therefore, CuFe2O4@Polythiophene composite is applicable for removal Hg(II) ions from aqueous solution and may be suitable for removal other heavy metals.
Collapse
Affiliation(s)
- Ayman H. Kamel
- Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Egypt; (A.A.H.); (H.H.E.-S.)
- Correspondence: (A.H.K.); (A.E.-G.E.A.); Tel.: +20-1000743328 (A.H.K.); Tel.: +966-565-148-750 (A.E.-G.E.A.)
| | - Amr A. Hassan
- Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Egypt; (A.A.H.); (H.H.E.-S.)
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Abd El-Galil E. Amr
- Pharmaceutical Chemistry Department, Drug Exploration & Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
- Applied Organic Chemistry Department, National Research Center, Dokki 12622, Egypt
- Correspondence: (A.H.K.); (A.E.-G.E.A.); Tel.: +20-1000743328 (A.H.K.); Tel.: +966-565-148-750 (A.E.-G.E.A.)
| | - Hadeel H. El-Shalakany
- Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Egypt; (A.A.H.); (H.H.E.-S.)
| | - Mohamed A. Al-Omar
- Pharmaceutical Chemistry Department, Drug Exploration & Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| |
Collapse
|
14
|
Ahmadi S, Mohammadi L, Rahdar A, Rahdar S, Dehghani R, Adaobi Igwegbe C, Kyzas GZ. Acid Dye Removal from Aqueous Solution by Using Neodymium(III) Oxide Nanoadsorbents. NANOMATERIALS 2020; 10:nano10030556. [PMID: 32204520 PMCID: PMC7153400 DOI: 10.3390/nano10030556] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/11/2020] [Accepted: 03/18/2020] [Indexed: 01/19/2023]
Abstract
In the current work, neodymium oxide (Nd2O3) nanoparticles were synthesized and characterized by means of X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The major aim/investigation of this research was to fit/model and optimize the removal of Acid Blue 92 (AB92) dye from synthetic effluents (aqueous solutions) using the adsorption process based on neodymium oxide (Nd2O3) nanoparticles. To optimize the adsorption conditions, central composite design (CCD) based on response surface methodology (RSM) was applied. The effects of pH (3-9), adsorbent dosage (0.1-1 g/L), initial concentration of AB92 (100-300 mg/L), and contact time (10-100 min) on the adsorption process were investigated. Apart from equilibrium and kinetic experiments, thermodynamic evaluation of the adsorption process was also undertaken. The adsorption process was found to have the best fitting to Langmuir isotherm model and pseudo-second-order kinetic equation. Also, the process was found to be spontaneous and favorable with increased temperature. The optimal conditions found were: pH = 3.15, AB92 concentration equal to 138.5 mg/L, dosage of nanoadsorbent equal to 0.83 g/L, and 50 min as contact time, which resulted in 90.70% AB92 removal. High values for the coefficient of determination, R2 (0.9596) and adjusted R2 (0.9220) indicated that the removal of AB92 dye using adsorption can be explained and modeled by RSM. The Fisher's F-value (25.4683) denotes that the developed model was significant for AB92 adsorption at a 95% confidence level.
Collapse
Affiliation(s)
- Shahin Ahmadi
- Department of Environmental Health, Zabol University of Medical Sciences, Zabol 986161588, Iran; (S.A.); (S.R.)
| | - Leili Mohammadi
- PhD of Environmental Health, Infectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan 9816743463, Iran;
| | - Abbas Rahdar
- Department of Physics, Faculty of science, University of Zabol, Zabol 538-98615, Iran
- Correspondence: (A.R.); (G.Z.K.)
| | - Somayeh Rahdar
- Department of Environmental Health, Zabol University of Medical Sciences, Zabol 986161588, Iran; (S.A.); (S.R.)
| | - Ramin Dehghani
- Department of Environmental Health, Kerman University of Medical Sciences, Kerman 7616913555, Iran;
| | | | - George Z. Kyzas
- Department of Chemistry, International Hellenic University, 654040 Kavala, Greece
- Correspondence: (A.R.); (G.Z.K.)
| |
Collapse
|