1
|
Du Y, Wang R, Fan W, Fu Y, Gao X, Gao Y, Chen L, Wang Z, Huang S. Adsorption of haem by magnetic chitosan microspheres: Optimal conditions, adsorption mechanisms and density functional theory analyses. Int J Biol Macromol 2024; 279:135243. [PMID: 39233154 DOI: 10.1016/j.ijbiomac.2024.135243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 08/26/2024] [Accepted: 08/30/2024] [Indexed: 09/06/2024]
Abstract
Magnetic chitosan microspheres (Al@CTS@Fe3O4) were prepared for haem separation via chemical cross-linking of chitosan, Fe3O4 and AlCl3·6H2O. The properties of the Al@CTS@Fe3O4 microspheres were investigated through techniques including XRD, TEM, FTIR, BET analysis, SEM, TG, VSM, XPS and pHpzc analysis. The haem adsorption of Al@CTS@Fe3O4 was optimized via a Box-Behnken design (BBD) with three operating factors: Fe3O4 dose (0.5-1.3 g), AlCl3·6H2O concentration (0.25-1.25 mol/L) and glutaraldehyde dose (2-6 mL). The optimal haem adsorption effect was achieved with 1.1 g of Fe3O4, 0.75 mol/L AlCl3·6H2O, and 3 mL of glutaraldehyde. The adsorption kinetics and isotherms demonstrated that haem adsorption by the Al@CTS@Fe3O4 microspheres was best described by the pseudo-second-order model. The maximum adsorption capacity is 33.875 mg/g at pH 6. After six adsorption-desorption cycles, the removal of haem still reached 53.83 %. The surface adsorption mechanism of haem on Al@CTS@Fe3O4 can be attributed to electrostatic, hydrogen bonding, and n-π interactions. Thermodynamic calculations indicated that the adsorption process is spontaneous, with the microspheres preferentially accepting electrons and haem preferentially providing electrons. Consequently, the Al@CTS@Fe3O4 microspheres exhibit considerable potential as adsorbents for haem separation.
Collapse
Affiliation(s)
- Yuanyuan Du
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, Shandong 250200, China.
| | - Ruixue Wang
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, Shandong 250200, China
| | - Weixi Fan
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, Shandong 250200, China
| | - Ying Fu
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, Shandong 250200, China
| | - Xing Gao
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, Shandong 250200, China
| | - Yan Gao
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, Shandong 250200, China
| | - Liwei Chen
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, Shandong 250200, China
| | - Zifei Wang
- School of Materials Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, China
| | - Shuangping Huang
- School of the Biomedical Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
| |
Collapse
|
2
|
Laraib SR, Liu J, Xia YG, Wu YW, Mohammadi MD, Noor NF, Lu Q. Assessing the efficacy of aluminum metal clusters Al 13 and Al 15 in mitigating NO 2 and SO 2 pollutants: a DFT investigation. RSC Adv 2024; 14:11217-11231. [PMID: 38590351 PMCID: PMC11000095 DOI: 10.1039/d4ra00708e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
The present investigation delves into the adverse environmental impact of atmospheric pollutant gases, specifically nitrogen dioxide (NO2) and sulfur dioxide (SO2), which necessitates the identification and implementation of effective control measures. The central objective of this study is to explore the eradication of these pollutants through the utilization of aluminum Al13 and Al15 metal clusters, distinguished by their unique properties. The comprehensive evaluation of gas/cluster interactions is undertaken employing density functional theory (DFT). Geometric optimization calculations for all structures are executed using the ωB97XD functional and the Def2-svp basis set. To probe various interaction modalities, gas molecule distribution around the metal clusters is sampled using the bee colony algorithm. Frequency calculations employing identical model chemistry validate the precision of the optimization calculations. The quantum theory of atoms in molecules (QTAIM) and natural bond orbital (NBO) methodologies are applied for the analysis of intermolecular interactions. This research establishes the robust formation of van der Waals attractions between the investigated gas molecules, affirming aluminum metal clusters as viable candidates for the removal and control of these gases.
Collapse
Affiliation(s)
- Sajida Riffat Laraib
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University Beijing 102206 China
| | - Ji Liu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University Beijing 102206 China
| | - Yuan-Gu Xia
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University Beijing 102206 China
| | - Yang-Wen Wu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University Beijing 102206 China
| | | | - Nayab Fatima Noor
- Military College of Signals, National University of Science and Technology Rawalpindi Pakistan
| | - Qiang Lu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University Beijing 102206 China
| |
Collapse
|
3
|
Naga Lakshmi C, Irfan M, Sinha R, Singh N. Magnetically recoverable Ni-doped iron oxide/graphitic carbon nitride nanocomposites for the improved photocatalytic degradation of ciprofloxacin: Investigation of degradation pathways. ENVIRONMENTAL RESEARCH 2024; 242:117812. [PMID: 38042517 DOI: 10.1016/j.envres.2023.117812] [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: 08/20/2023] [Revised: 11/12/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023]
Abstract
Developing efficient and effective photocatalysts is essential for organic dyes and antibiotic degradation in wastewater. Ni-doped α-Fe2O3/g-C3N4 (NFGCN) photocatalysts were synthesised through a simple co-precipitation technique and used for the ciprofloxacin (CIP) and methylene blue (MB) degradation through photocatalysis. The XRD data indicated the crystallinity of the synthesised iron oxide and its composites with rhombohedral structures with the nature of high purity. The morphology of the NFGCN composite revealed the construction of Ni-doped α-Fe2O3 (NFO) nanoparticles onto the g-C3N4 (GCN) sheet surface along with the close interface that induced a Z-scheme heterojunction. The synthesised photocatalysts showed photocatalytic activity with good degradation efficiency of 82.1 % and 92.0 % for CIP and MB, respectively, within 120 min under solar light exposure. The improved photocatalytic degradation efficiency was attained owing to the synthesised composite's enhanced light absorption in the visible range. The narrow band gap energies and interaction between Ni-doped α-Fe2O3 and g-C3N4 displayed by these materials result in enhanced visible light absorption, effective charge carrier separation and transportation to the pollutants. CIP degradation pathways were investigated utilising the LC-MS analysis. NFGCN composites showed good recyclability (5 cycles), magnetic retrievability, and stability for degrading organic and emerging pollutants from wastewater through photocatalysis.
Collapse
Affiliation(s)
- Chinthalapudi Naga Lakshmi
- Department of Chemical Engineering, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh, 517619, India
| | - Mohammad Irfan
- Department of Chemical Engineering, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh, 517619, India
| | - Rahul Sinha
- Department of Chemical Engineering, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh, 517619, India
| | - Narendra Singh
- Department of Chemical Engineering, Indian Institute of Technology Tirupati, Tirupati, Andhra Pradesh, 517619, India.
| |
Collapse
|
4
|
Walling B, Bharali P, Ramachandran D, Viswanathan K, Hazarika S, Dutta N, Mudoi P, Manivannan J, Manjunath Kamath S, Kumari S, Vishwakarma V, Sorhie V, Gogoi B, Acharjee SA, Alemtoshi. In-situ biofabrication of bacterial nanocellulose (BNC)/graphene oxide (GO) nano-biocomposite and study of its cationic dyes adsorption properties. Int J Biol Macromol 2023; 251:126309. [PMID: 37573902 DOI: 10.1016/j.ijbiomac.2023.126309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/29/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023]
Abstract
In the present study, bacterial nanocellulose/graphene oxide nano-biocomposites (BNC-GO-NBCs) were fabricated by Komagataeibacter saccharivorans NUWB1 using an in-situ method involving three time-dependent approaches. Physicochemical studies showed that the chosen dried BNC-GO-NBC possessed a three-dimensional interconnected porous structure of BNC with GO layers embedded within the BNC fibrils. BNC-GO-NBC had a crystallinity index of 74.21 %, higher thermostability up to 380 °C and could withstand a tensile load of 84.72 MPa. N2 adsorption-desorption isotherm of the BNC-GO-NBC was found to be of type IV, suggesting a mesoporous type structure with a total pore volume and surface area of 6.232e-04 cc g-1 and 10.498 m2. BNC-GO-NBC exhibited remarkable adsorption capacity for two cationic dyes, Rhodamine B (RhB) and Acridine Orange (AO), and the adsorption data conformed well to the Langmuir isotherm (R2 = 0.99) and pseudo-second-order model. Thermodynamic studies indicated that the adsorption process was spontaneous and endothermic. Additionally, the BNC-GO-NBC displayed the potential for regeneration, with the ability to be recycled up to five times. Further, the antibacterial activity, cell cytotoxicity and oxidative stress assays of the BNC-GO-NBC revealed its non-cytotoxic nature. The findings of the present investigation evidently suggest the potentiality of BNC-GO-NBC in the application of dye adsorption and other environmental applications.
Collapse
Affiliation(s)
- Bendangtula Walling
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| | - Pranjal Bharali
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India.
| | - D Ramachandran
- Centre for Nanoscience & Nanotechnology, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai 600119, Tamil Nadu, India
| | - K Viswanathan
- Centre for Nanoscience & Nanotechnology, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai 600119, Tamil Nadu, India
| | - Swapnali Hazarika
- Chemical Engineering Group, CSIR-North East Institute of Science & Technology, Jorhat 785006, Assam, India
| | - Nipu Dutta
- Department of Chemical Science, Tezpur University, Napaam, Tezpur 784028, Assam, India
| | - Pronab Mudoi
- Department of Molecular Biology & Biotechnology, Tezpur University, Napaam, Tezpur 784028, Assam, India
| | - Jeganathan Manivannan
- Environmental Health & Toxicology Laboratory, Department of Environmental Science, Bharathiar University, Tamil Nadu, India
| | - S Manjunath Kamath
- Centre for Nanoscience & Nanotechnology, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Road, Chennai 600119, Tamil Nadu, India
| | - Sony Kumari
- Department of Applied Biology, University of Science and Technology, Meghalaya, Ri Bhoi, Baridua 793101, India
| | - Vinita Vishwakarma
- Centre for Nanoscience and Nanotechnology, Galgotias University, Greater Noida, NCR Delhi, India
| | - Viphrezolie Sorhie
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| | - Bhagyudoy Gogoi
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| | - Shiva Aley Acharjee
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| | - Alemtoshi
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, Lumami, Zunheboto 798627, Nagaland, India
| |
Collapse
|
5
|
Sharifi MJ, Nouralishahi A, Hallajisani A. Fe 3O 4-chitosan nanocomposite as a magnetic biosorbent for removal of nickel and cobalt heavy metals from polluted water. Int J Biol Macromol 2023; 248:125984. [PMID: 37506786 DOI: 10.1016/j.ijbiomac.2023.125984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/25/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
Recently, natural polymers like chitosan have gained attention as promising adsorbents for water treatment. By combining chitosan with magnetic nanoparticles, their adsorption capabilities can be enhanced. In this study, chitosan-magnetite nanocomposite (CMNC) was synthesized via coprecipitation method to remove nickel and cobalt from aqueous solutions. The physicochemical properties of the synthesized CMNC were investigated by various techniques, including FESEM, TEM, XPS, FTIR, XRD, and VSM. The electron microscopy results confirmed the uniform dispersion of magnetite nanoparticles within CMNC nanocomposites, while VSM confirmed their significant magnetic properties. The adsorption experiments showed that at optimal conditions (pH = 6, contact time = 2 h, adsorbent dosage = 2 g/l), CMNC has high adsorption capacities of 30.03 mg/g for Ni2+ and 53.19 mg/g for Co2+. Furthermore, the adsorption data fitted best with the Langmuir isotherm, show that the active sites on CMNC are energetically homogenous. According to kinetic analysis, the experimental data were in good agreement with both pseudo-second-order and intra-particle diffusion models, which suggest that chemical sorption, along with mass transfer steps, influence the overall adsorption process. Finally, investigating the thermodynamic parameters (∆Gads, ∆Hads, ∆Sads) showed that the adsorption process on CMNC was endothermic and spontaneous, with stronger interactions observed between CMNC and Co2+ compared to Ni2+.
Collapse
Affiliation(s)
- Mohammad Javad Sharifi
- Caspian Faculty of Engineering, College of Engineering, University of Tehran, P.O. Box 43841-119, Rezvanshahr, Iran
| | - Amideddin Nouralishahi
- Caspian Faculty of Engineering, College of Engineering, University of Tehran, P.O. Box 43841-119, Rezvanshahr, Iran; Chemistry Department, Missouri University of Science and Technology, Rolla, MO, USA, 65409.
| | - Ahmad Hallajisani
- Caspian Faculty of Engineering, College of Engineering, University of Tehran, P.O. Box 43841-119, Rezvanshahr, Iran
| |
Collapse
|
6
|
Yao N, Wang X, Yang Z, Zhao P, Meng X. Characterization of solid and liquid carbonization products of polyvinyl chloride (PVC) and investigation of the PVC-derived adsorbent for the removal of organic compounds from water. JOURNAL OF HAZARDOUS MATERIALS 2023; 456:131687. [PMID: 37236115 DOI: 10.1016/j.jhazmat.2023.131687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 05/28/2023]
Abstract
The transformation of plastic wastes into value-added carbon materials is a promising strategy for the recycling of plastics. Commonly used polyvinyl chloride (PVC) plastics are converted into microporous carbonaceous materials using KOH as an activator via simultaneous carbonization and activation for the first time. The optimized spongy microporous carbon material has a surface area of 2093 m2 g-1 and a total pore volume of 1.12 cm3 g-1, and aliphatic hydrocarbons and alcohols are yielded as the carbonization by-products. The PVC-derived carbon materials exhibit outstanding adsorption performance for removing tetracycline from water, and the maximum adsorption capacity reaches 1480 mg g-1. The kinetic and isotherm patterns for tetracycline adsorption follow the pseudo-second-order and Freundlich models, respectively. Adsorption mechanism investigation indicates that pore filling and hydrogen bond interaction are mainly responsible for the adsorption. This study provides a facile and environmentally friendly approach for valorizing PVC into adsorbents for wastewater treatment.
Collapse
Affiliation(s)
- Nan Yao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaopei Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zihan Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peiqing Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
| | - Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
| |
Collapse
|
7
|
Wei S, Liu X, Xie J, Liu H, Zeng Q, wang G, Luo P. Biosynthesis of novel metallic silvers on kraft papers using cephalotaxus harringtonia fruit extract as a sustainable stabilizing agent (KP@AgNP). Front Bioeng Biotechnol 2022; 10:967166. [PMID: 36032732 PMCID: PMC9399674 DOI: 10.3389/fbioe.2022.967166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 07/18/2022] [Indexed: 11/18/2022] Open
Abstract
Greenly synthesized silver nanoparticles (AgNPs) on different cellulosic materials show tremendous potential for colorful, biocidal, and reasonably strong products by replacing the traditional chemical-based synthesis protocols. This study reports on a novel in situ synthesis protocol for synthesizing green and sustainable AgNPs over cellulosic kraft paper substrates using a bio-based stabilizing agent (Cephalotaxus harringtonia fruit extract). The protocol could play a significant role in packaging industries. The aqueous extracts of Cephalotaxus harringtonia fruits have been used to synthesize the metallic silver. The deposited AgNPs values were investigated through XRF (X-ray fluorescence) analysis. The number of deposited nanoparticles (NPs) was 268 ± 7, 805 ± 14, and 1,045 ± 16 PPM, respectively for 0.5, 1.5, and 2.5 mm silver precursors. The developed products were tested with SEM (scanning electron microscopy), SEM-mediated elemental mapping, EDX (energy disruptive X-ray), FTIR (Fourier transform infrared spectroscopy), and XRD (X-Ray diffraction). XRD analysis further confirmed the presence of peaks for elemental AgNP on the deposited papers. Colorimetric values were measured to confirm the colorful appearances of the developed metallic silvers. Mechanical properties were tested in terms of the tensile index and bursting index. Moreover, the statistical analysis of coefficient of variations (R2) and a post-hoc ANOVA test that adopted the Newman-Keul methodology also confirm the significance of developed nanoparticles in the papers. The shielding capacity against UV light was also investigated; all the AgNPs-treated products provided values higher than 40, demonstrating the strong UV resistance capability of the kraft paper material. Overall, the study confirms a successful development of green AgNPs on paper materials.
Collapse
Affiliation(s)
- Shaofeng Wei
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
| | | | | | | | | | | | - Peng Luo
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
| |
Collapse
|
8
|
Wei Y, Wang L, Li H, Yan W, Feng J. Synergistic Fluoride Adsorption by Composite Adsorbents Synthesized From Different Types of Materials—A Review. Front Chem 2022; 10:900660. [PMID: 35601557 PMCID: PMC9114667 DOI: 10.3389/fchem.2022.900660] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/07/2022] [Indexed: 12/21/2022] Open
Abstract
The reduction of fluoride concentrations in water is one of many concerns. Adsorption is the most widely used technology for fluoride removal and the center to development of adsorption technology is the improvement of adsorbents. This review classifies the typical fluoride removal adsorbents into four types: metal oxides/hydroxides, biopolymers, carbon-based, and other adsorbents. The exploitation of new materials and the synthesis of composite materials are two ways of developing new adsorbents. In comparison to the discovery of novel adsorbents for fluoride adsorption, research into the composite synthesis of different types of conventional adsorbents has proliferated in recent years. The traditional adsorbents used the earliest, metal oxides, can act as active centers in a wide range of applications for modifying and compounding with other types of adsorbents. This study emphasizes reviewing the research on fluoride removal by composite adsorbents synthesized from different types of metal-modified materials. Seven factors were compared in terms of material characterization, initial fluoride concentration, adsorbent dose, pH, temperature, reaction time, and maximum adsorption capacity. The modification of composite adsorbents is facile and the synergistic effect of the different types of adsorbents significantly improves fluoride adsorption capacity. Metal composite adsorbents are synthesized by facile coprecipitation, hydrothermal, or impregnation modification methods. The adsorption mechanisms involve electrostatic attraction, ion exchange, complexation, and hydrogen bonding. The fluoride adsorption capacity of composite adsorbents has generally improved, indicating that most modifications are successful and have application prospects. However, to achieve significant breakthroughs in practical applications, numerous issues such as cost, separation/regeneration performance, and safety still need to be considered.
Collapse
|
9
|
Fabrication of Multi-functionalized Graphene Oxide Doped Alginate Hybrid Spheres for Enhanced Fluoride Adsorption. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02163-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
10
|
Deivasigamani P, Ponnusamy SK, Sundararaman S, A S. Superhigh Adsorption of Cadmium(II) Ions onto Surface Modified Nano Zerovalent Iron Composite (CNS-nZVI): Characterization, Adsorption Kinetics and Isotherm Studies. CHEMISTRY & CHEMICAL TECHNOLOGY 2021. [DOI: 10.23939/chcht15.04.457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The efficiency of surface modified nanoscale zerovalent iron (nZVI) composite by cashew nut shell (CNS) was tested for the removal of cadmium ions from the aqueous solutions. 2 g/l CNS-nZVI was efficient for 98% removal. The adsorption capacity was 35.58 mg/g. The Freundlich isotherm (R2 = 0.9769) and the pseudo-second order adsorption kinetics data fitted well. This proved CNS-nZVI has a high removal efficiency for Cd(II) from aqueous solutions.
Collapse
|
11
|
Zaidi R, Khan SU, Farooqi IH, Azam A. Investigation of kinetics and adsorption isotherm for fluoride removal from aqueous solutions using mesoporous cerium-aluminum binary oxide nanomaterials. RSC Adv 2021; 11:28744-28760. [PMID: 35478586 PMCID: PMC9038127 DOI: 10.1039/d1ra00598g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 08/04/2021] [Indexed: 01/28/2023] Open
Abstract
Herein, we report the synthesis of Ce–Al (1 : 1, 1 : 3, 1 : 6, and 1 : 9) binary oxide nanoparticles by a simple co-precipitation method at room temperature to be applied for defluoridation of an aqueous solution. The characterization of the synthesized nanomaterial was performed by XRD (X-ray diffraction), FTIR (Fourier transform infrared) spectroscopy, TGA/DTA (thermogravimetric analysis/differential thermal analysis), BET (Brunauer–Emmett–Teller) surface analysis, and SEM (scanning electron microscopy). Ce–Al binary oxides in 1 : 6 molar concentration were found to have the highest surface area of 110.32 m2 g−1 with an average crystallite size of 4.7 nm, which showed excellent defluoridation capacity. The adsorptive capacity of the prepared material towards fluoride removal was investigated under a range of experimental conditions such as dosage of adsorbents, pH, and initial fluoride concentration along with adsorption isotherms and adsorption kinetics. The results indicated that fluoride adsorption on cerium–aluminum binary metal oxide nanoparticles occurred within one hour, with maximum adsorption occurring at pH 2.4. The experimental data obtained were studied using Langmuir, Freundlich, and Temkin adsorption isotherm models. The nanomaterial showed an exceptionally high adsorbent capacity of 384.6 mg g−1. Time-dependent kinetic studies were carried out to establish the mechanism of the adsorption process by pseudo-first-order kinetics, pseudo-second-order kinetics, and Weber–Morris intraparticle diffusion kinetic models. The results indicated that adsorption processes followed pseudo-second-order kinetics. This study suggests that cerium–aluminum binary oxide nanoparticles have good potential for fluoride removal from highly contaminated aqueous solutions. Mesoporous Ce–Al binary oxide nanomaterials prepared with a surface area of 110.32 m2 g−1 showed defluoridation capacity at pH 2.4, exhibited maximum adsorption capacity of 384.6 mg g−1 and a removal efficiency of 91.5% at a small dose of nanoadsorbent.![]()
Collapse
Affiliation(s)
- Rumman Zaidi
- Department of Applied Physics, Z. H. College of Engineering & Technology, Aligarh Muslim University Aligarh 202002 India
| | - Saif Ullah Khan
- Environmental Engineering Section, Department of Civil Engineering, Z. H. College of Engineering & Technology, Aligarh Muslim University Aligarh 202002 India
| | - I H Farooqi
- Environmental Engineering Section, Department of Civil Engineering, Z. H. College of Engineering & Technology, Aligarh Muslim University Aligarh 202002 India
| | - Ameer Azam
- Department of Applied Physics, Z. H. College of Engineering & Technology, Aligarh Muslim University Aligarh 202002 India
| |
Collapse
|
12
|
Adsorption Studies on Magnetic Nanoparticles Functionalized with Silver to Remove Nitrates from Waters. WATER 2021. [DOI: 10.3390/w13131757] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This paper presents a novel procedure for the treatment of contaminated water with high concentrations of nitrates, which are considered as one of the main causes of the eutrophication phenomena. For this purpose, magnetic nanoparticles functionalized with silver (Fe3O4@AgNPs) were synthesized and used as an adsorbent of nitrates. Experimental conditions, including the pH, adsorbent and adsorbate dose, temperature and contact time, were analyzed to obtain the highest adsorption efficiency for different concentration of nitrates in water. A maximum removal efficiency of 100% was reached for 2, 5, 10 and 50 mg/L of nitrate at pH = 5, room temperature, and 50, 100, 250 and 500 µL of Fe3O4@AgNPs, respectively. The characterization of the adsorbent, before and after adsorption, was performed by energy dispersive X-ray spectroscopy, scanning electron microscopy, Brunauer-Emmett-Teller analysis and Fourier-transform infrared spectroscopy. Nitrates can be desorbed, and the adsorbent can be reused using 500 µL of NaOH solution 0.01 M, remaining unchanged for the first three cycles, and exhibiting 90% adsorption efficiency after three regenerations. A deep study on equilibrium isotherms reveals a pH-dependent behavior, characterized by Langmuir and Freundlich models at pH = 5 and pH = 1, respectively. Thermodynamic studies were consistent with physicochemical adsorption for all experiments but showed a change from endothermic to exothermic behavior as the temperature increased. Interference studies of other ions commonly present in water were carried out, enabling this procedure as very selective for nitrate ions. In addition, the method was applied to real samples of seawater, showing its ability to eliminate the total nitrate content in eutrophized waters.
Collapse
|
13
|
Fang Y, Yang K, Zhang Y, Peng C, Robledo-Cabrera A, López-Valdivieso A. Highly surface activated carbon to remove Cr(VI) from aqueous solution with adsorbent recycling. ENVIRONMENTAL RESEARCH 2021; 197:111151. [PMID: 33844973 DOI: 10.1016/j.envres.2021.111151] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/20/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
To enhance the inferior removal capability of aqueous Cr(VI) by commercial activated carbon under neutral conditions. The emerging ball milling technology was employed and the removal efficiency of Cr(VI) by ball-milled highly activated carbon (HAC) increased from 68.3% to 99.0% under pH 6 and from 42.7% to 77.8% under pH 7 compared to pristine activated carbon (AC), respectively. Raman spectra and Boehm's titration results signified that the enhanced Cr(VI) removal performance of HAC under neutral conditions was associated with the enriched surface acid functional groups, in which the content of COOH groups increased from 0.31 mmol/g to 0.97 mmol/g. Two Cr(VI) removal mechanisms were proposed established on the acid and alkalic solution washed chromium-loaded HAC, involving the reduction of Cr(VI) to Cr(III) subsequently accompany with the formation of chromium hydroxides on the surface and inside the pores of HAC, and the bonding of CrO42- on the surface COOH groups, as confirmed by SEM-EDX element mapping and specific surface area and porosity measurements. The Pseudo-second order model and Freundlich model fitted the adsorption kinetic and isotherm of AC and HAC well severally, suggesting that the specific interaction of Cr(VI) with the HAC surface and the Cr(VI) removal was multi-layer adsorption. Thermodynamic study exhibited the spontaneity of Cr(VI) removal on ball-milled HAC was increased. Reusability and regeneration studies of HAC denoted the potential application on Cr(VI) uptake under neutral conditions.
Collapse
Affiliation(s)
- Yi Fang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Ke Yang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Yipeng Zhang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Changsheng Peng
- School of Environmental and Chemical Engineering, Zhaoqing Univerity, Zhaoqing, 526061, China.
| | - Aurora Robledo-Cabrera
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Alejandro López-Valdivieso
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| |
Collapse
|
14
|
Belhaj AF, Elraies KA, Alnarabiji MS, Abdul Kareem FA, Shuhli JA, Mahmood SM, Belhaj H. Experimental investigation, binary modelling and artificial neural network prediction of surfactant adsorption for enhanced oil recovery application. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 406:127081. [PMID: 32989375 PMCID: PMC7511199 DOI: 10.1016/j.cej.2020.127081] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/15/2020] [Accepted: 09/17/2020] [Indexed: 05/29/2023]
Abstract
Throughout the application of enhanced oil recovery (EOR), surfactant adsorption is considered the leading constraint on both the successful implementation and economic viability of the process. In this study, a comprehensive investigation on the adsorption behaviour of nonionic and anionic individual surfactants; namely, alkyl polyglucoside (APG) and alkyl ether carboxylate (AEC) was performed using static adsorption experiments, isotherm modelling using (Langmuir, Freundlich, Sips, and Temkin models), adsorption simulation using a state-of-the-art method, binary mixture prediction using the modified extended Langmuir (MEL) model, and artificial neural network (ANN) prediction. Static adsorption experiments revealed higher adsorption capacity of APG as compared to AEC, with sips being the most fitted model with R2 (0.9915 and 0.9926, for APG and AEC respectively). It was indicated that both monolayer and multilayer adsorption took place in a heterogeneous adsorption system with non-uniform surfactant molecules distribution, which was in remarkable agreement with the simulation results. The (APG/AEC) binary mixture prediction depicted contradictory results to the experimental individual behaviour, showing that AEC had more affinity to adsorb in competition with APG for the adsorption sites on the rock surface. The adopted ANN model showed good agreement with the experimental data and the simulated adsorption values for APG and AEC showed a decreasing trend as temperature increases. Simulating the impact of binary surfactant adsorption can provide a tremendous advantage of demonstrating the binary system behaviour with less experimental data. The utilization of ANN for such prediction procedure can minimize the experimental time, operating cost and give feasible predictions compared to other computational methods. The integrated workflow followed in this study is quite innovative as it has not been employed before for surfactant adsorption studies.
Collapse
Affiliation(s)
- Ahmed F Belhaj
- Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Khaled A Elraies
- Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Mohamad S Alnarabiji
- Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Firas A Abdul Kareem
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Juhairi A Shuhli
- Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Syed M Mahmood
- Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Hadi Belhaj
- Department of Petroleum Engineering, Khalifa University of Science and Technology, Sas Al Nakhl Campus, P.O. BOX 2533, Abu Dhabi, United Arab Emirates
| |
Collapse
|
15
|
AgO/MgO/FeO@Si3N4 nanocomposite with robust adsorption capacity for tetracycline antibiotic removal from aqueous system. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.09.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
16
|
Ghosh T, Choudhary N, Mobin SM. Design and Synthesis of Silver Decorated Fe
3
O
4
@ Fe Doped CeO
2
Core‐Shell Ternary Composite as Highly Efficient Nanocatalyst for Selective Oxidation of Alkenes. ChemistrySelect 2020. [DOI: 10.1002/slct.202002349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Topi Ghosh
- Discipline of ChemistryIndian Institute of Technology Indore Simrol, Khandwa Road Indore 453552 India
| | - Neha Choudhary
- Discipline of ChemistryIndian Institute of Technology Indore Simrol, Khandwa Road Indore 453552 India
| | - Shaikh M. Mobin
- Discipline of ChemistryIndian Institute of Technology Indore Simrol, Khandwa Road Indore 453552 India
- Discipline of Metallurgy Engineering and Materials ScienceIndian Institute of Technology Indore Simrol Khandwa Road Indore 453552 India
- Discipline of Biosciences and Bio-Medical EngineeringIndian Institute of Technology Indore Simrol Khandwa Road Indore 453552 India
| |
Collapse
|
17
|
Fu H, He H, Usman M, Chen Q, Laipan M, Yang Y, Zhu R, Cai L. Facile synthesis of Al/Fe bimetallic (oxyhydr)oxide-coated magnetite for efficient removal of fluoride from water. ENVIRONMENTAL TECHNOLOGY 2020; 41:2625-2636. [PMID: 30694117 DOI: 10.1080/09593330.2019.1575919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
In this work, we developed a novel magnetic bimetallic Al/Fe (oxyhydr)oxide adsorbent through a facile and cost-effective method and explored its potential to adsorb fluoride in water. Its synthesis involved corrosion of natural magnetite in aluminium chloride solution, followed by titration with NaOH solution for in-situ synthesis of Al/Fe (oxyhydr)oxide-coated magnetite (Mag@Al2Fe). Characterization data indicated a uniform coating of Al/Fe (oxyhydr)oxide on magnetite, and the resulting composite possessed large specific surface area (∼90 m2/g) and good magnetic property. In batch adsorption experiments, the isotherm and kinetic data fitted well to the Langmuir model and pseudo-second-order model, respectively. The maximum adsorption capacity of Mag@Al2Fe is 26.5 mg/g, which was much higher than natural magnetite (0.44 mg/g). Moreover, this material retained high adsorption capacity toward fluoride within a wide pH range (3.0-8.0) and offered facile magnetic separation from water. Influence of competing ions was also evaluated which showed that the presence of Cl- and NO3 - posed negligible interference, while HCO3 - and SO4 2- had negative effects on fluoride adsorption. Thermodynamic investigations revealed that fluoride adsorption was exothermic and spontaneous. The observed increase in solution pH and formation of Al-F and Fe-F bonds (as indicated by XPS analysis) after fluoride adsorption suggested the major adsorption mechanism of ligand exchange. Besides, the adsorption/desorption cycle studies demonstrated the well-retained performance of Mag@Al2Fe for repeated application after regeneration by 0.5 mol/L NaOH solution. Facile synthesis, high defluoridation, lower cost, and quick separation of Mag@Al2Fe indicates its promising potential for drinking water defluoridation.
Collapse
Affiliation(s)
- Haoyang Fu
- Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Material, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Hongfei He
- Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Material, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Muhammad Usman
- Environmental Mineralogy, Center for Applied Geosciences, University of Tübingen, Tübingen, Germany
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Qingze Chen
- Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Material, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Minwang Laipan
- Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Material, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yixuan Yang
- Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Material, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Runliang Zhu
- Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Material, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, People's Republic of China
| | - Limei Cai
- College of Resources and Environment, Yangtze University, Wuhan, People's Republic of China
| |
Collapse
|
18
|
Azari A, Mahmoudian MH, Niari MH, Eş I, Dehganifard E, Kiani A, Javid A, Azari H, Fakhri Y, Mousavi Khaneghah A. Rapid and efficient ultrasonic assisted adsorption of diethyl phthalate onto FeIIFe2IIIO4@GO: ANN-GA and RSM-DF modeling, isotherm, kinetic and mechanism study. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104144] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
19
|
Varga M, ELAbadsa M, Tatár E, Mihucz VG. Removal of selected pharmaceuticals from aqueous matrices with activated carbon under batch conditions. Microchem J 2019. [DOI: 10.1016/j.microc.2019.05.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
20
|
Yehia AM, Elbalkiny HT, Riad SM, Elsaharty YS. Monitoring and optimization of diclofenac removal by adsorption technique using in-line potentiometric analyzer. Microchem J 2019. [DOI: 10.1016/j.microc.2019.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
21
|
A new study on photocatalytic degradation of meropenem and ceftriaxone antibiotics based on sulfate radicals: Influential factors, biodegradability, mineralization approach. Microchem J 2019. [DOI: 10.1016/j.microc.2019.01.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
22
|
Multi-walled carbon nanotubes modified with iron oxide and silver nanoparticles (MWCNT-Fe3O4/Ag) as a novel adsorbent for determining PAEs in carbonated soft drinks using magnetic SPE-GC/MS method. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2018.03.003] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
23
|
Rac-Rumijowska O, Maliszewska I, Fiedot-Toboła M, Karbownik I, Teterycz H. Multifunctional Nanocomposite Cellulose Fibers Doped in Situ with Silver Nanoparticles. Polymers (Basel) 2019; 11:E562. [PMID: 30960546 PMCID: PMC6473758 DOI: 10.3390/polym11030562] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/18/2019] [Accepted: 03/20/2019] [Indexed: 11/17/2022] Open
Abstract
This paper presents a method for the preparation of nanocomposite cellulose fibers doped with silver nanoparticles (AgNPs), as well as the effect of silver nanoparticles on the structure and properties of fibers. The fibers were obtained by an environmentally friendly method using N-Methylmorpholine N-oxide (NMMO) as a solvent, in a non-polluting closed system. Doping with silver nanoparticles was carried out as a direct (in situ) reduction of Ag⁺ ions in the presence of a stabilizing agent during the preparation of the spinning solution. SEM images of the surface and cross section of the fibers showed that the distribution of nanoparticles in the fibers' volume was uniform. The fibers exhibited very good antibacterial properties in relation to Staphylococcus aureus, Escherichia coli, Acinetobacter baumannii, and Candida albicans. Flammability analysis showed that the fibers were subjected to a one-stage combustion process and that the silver nanoparticles reduced the heat release rate (HRR) of the fibers by 36%. TG studies showed that the modification of cellulose fibers with silver nanoparticles promoted the formation of mill scale in the combustion of fibers, which was directly related to the reduction of flammability. Tests of the electrical properties showed that the linear resistance of cellulose fibers containing 3 wt % silver was 10⁸ Ω/cm.
Collapse
Affiliation(s)
- Olga Rac-Rumijowska
- Faculty of Microsystem Electronics and Photonics, Wrocław University of Technology, Janiszewskiego 11/17, 50-372 Wrocław, Poland.
| | - Irena Maliszewska
- Faculty of Chemistry, Wrocław University of Technology, Norwida 4/6, 50-373 Wrocław, Poland.
| | - Marta Fiedot-Toboła
- Polish Centre for Technology Development PORT, Stabłowicka 147, 54-066 Wroclaw, Poland.
| | - Iwona Karbownik
- Faculty of Electrical, Electronic, Computer and Control Engineering, Technical University of Łódź, Żeromskiego 116, 90-924 Łódź, Poland.
| | - Helena Teterycz
- Faculty of Microsystem Electronics and Photonics, Wrocław University of Technology, Janiszewskiego 11/17, 50-372 Wrocław, Poland.
| |
Collapse
|
24
|
Hydrous CeO2-Fe3O4 decorated polyaniline fibers nanocomposite for effective defluoridation of drinking water. J Colloid Interface Sci 2018; 532:500-516. [DOI: 10.1016/j.jcis.2018.07.134] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/27/2018] [Accepted: 07/30/2018] [Indexed: 11/20/2022]
|
25
|
Hydrothermal fabrication of TiO 2 -MoO 3 nanocomposites with superior performance for water treatment. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2017.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
26
|
Removal of phthalate esters (PAEs) by zeolite/Fe 3 O 4 : Investigation on the magnetic adsorption separation, catalytic degradation and toxicity bioassay. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.02.094] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
27
|
Salimi J, Kakavandi B, Babaei AA, Takdastan A, Alavi N, Neisi A, Ayoubi-Feiz B. Modeling and optimization of nonylphenol removal from contaminated water media using a magnetic recoverable composite by artificial neural networks. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 75:1761-1775. [PMID: 28452768 DOI: 10.2166/wst.2016.523] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Herein, activated carbon impregnated iron oxide nanoparticles (Fe3O4/AC) were synthesized to determine their potentials for the adsorption of nonylphenol (NP) in aqueous solution with different experimental variables, namely the pH of the solution, contact time, adsorbent dosage and the initial NP concentration. Additionally, an artificial neural network system was used to find the relative importance of each of the aforementioned input variables on NP adsorption efficiency. Experimental findings indicated that the optimum solution pH for NP adsorption was 3.0. The equilibrium time of the adsorption process was 30 min. According to the results of isotherm and kinetic studies, among all applied models, the Liu and pseudo-first-order models showed the best fit with the experimental data. The pH of the solution, compared to other input variables, had the maximum impacts on NP adsorption efficiency. Under optimum conditions, the adsorption percentage decreased insignificantly from 99.6 to 92.6% after the fifth cycle. Also, the adsorption efficiencies of 70.7, 73.5 and 67.3% were observed for river water, tap water and wastewater effluent, respectively. Ultimately, from the findings of this study, it can be postulated that Fe3O4/AC nanoparticles can be recommended as a promising and novel adsorbent to remove NP from polluted groundwater.
Collapse
Affiliation(s)
- Javad Salimi
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran E-mail: ; Department of Environmental Health Engineering, School of Health, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran; Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Babak Kakavandi
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran E-mail: ; Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Akbar Babaei
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran E-mail: ; Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Afshin Takdastan
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran E-mail: ; Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nadali Alavi
- Environmental and Occupational Hazards Control Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran and Department of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdolkazem Neisi
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran E-mail: ; Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Baharak Ayoubi-Feiz
- Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| |
Collapse
|
28
|
Silica-coated magnetite nanoparticles core-shell spheres (Fe 3O 4@SiO 2) for natural organic matter removal. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING 2016; 14:21. [PMID: 27924220 PMCID: PMC5123275 DOI: 10.1186/s40201-016-0262-y] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 11/10/2016] [Indexed: 12/07/2022]
Abstract
Background In this work, the magnetite (Fe3O4) nanoparticles (MNPs) and silica-coated magnetite nanoparticles (SMNPs) were synthesized as adsorbents for removing humic acid (HA) from water resources. Methods The adsorption processes were performed in batch experiments with which the influence of pH, reaction time, adsorbent dosage, initial concentrations of HA and temperature were investigated. Specific techniques were applied to characterize the features of both adsorbents (i. e. TECHNIQUES) (SEM, XRD, TEM, BET, EDX and VSM). Results The maximum saturation magnetization for SMNPs was 30.2 emu/g, which made its separation from the solution by a magnetic field to be easier and faster. The HA adsorption process onto the both adsorbents were best described by the Freundlich isotherm and pseudo-second-order kinetic models. Highest adsorption efficiency of HA by MNPs an d SMNPs occurred at acidic conditions (pH ≈ 3). The mechanisms of adsorption process involved with a physisorption process such as (i. e. hydrogen bonding and electrostatic interaction). The predicted maximum monolayer adsorption capacities obtained by Langmuir isotherm model for MNPs and SMNPs were 96.15 and 196.07 mg/g, respectively. Conclusion Higher amount of HA adsorption onto the surfaces of SMNPs than MNPs surfaces was observed, reflecting that silica impregnated on MNPs enhances the efficiency of the adsorbent in removing HA. Electronic supplementary material The online version of this article (doi:10.1186/s40201-016-0262-y) contains supplementary material, which is available to authorized users.
Collapse
|
29
|
Application of mesoporous magnetic carbon composite for reactive dyes removal: Process optimization using response surface methodology. KOREAN J CHEM ENG 2016. [DOI: 10.1007/s11814-016-0155-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
30
|
Jung KW, Hwang MJ, Jeong TU, Chau DM, Kim K, Ahn KH. Entrapment of powdered drinking water treatment residues in calcium-alginate beads for fluoride removal from actual industrial wastewater. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.05.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
31
|
Ahmadi E, Kakavandi B, Azari A, Izanloo H, Gharibi H, Mahvi AH, Javid A, Hashemi SY. The performance of mesoporous magnetite zeolite nanocomposite in removing dimethyl phthalate from aquatic environments. DESALINATION AND WATER TREATMENT 2016. [DOI: 10.1080/19443994.2016.1178174] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
32
|
Wu L, Lin X, Wu J, Zhou X, Luo X. Adsorption behavior of carboxymethyl konjac glucomannan microspheres for fluoride from aqueous solution. RSC Adv 2016. [DOI: 10.1039/c6ra17183d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The CMKGM–La–Al is characterized by SEM, EDX, and XPS. We find that adsorption mechanism of the adsorbent involved coordination reaction and electrostatic interaction. The schematic diagram of preparation of CMKGM–La–Al is shown as above.
Collapse
Affiliation(s)
- Liping Wu
- Department of Materials Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- China
| | - Xiaoyan Lin
- Department of Materials Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- China
- Engineering Research Center of Biomass Materials
| | - Jiajie Wu
- Department of Materials Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- China
| | - Xingbao Zhou
- Department of Materials Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- China
| | - Xuegang Luo
- Department of Materials Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- China
- Engineering Research Center of Biomass Materials
| |
Collapse
|