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Bekchanov D, Mukhamediev M, Yarmanov S, Lieberzeit P, Mujahid A. Functionalizing natural polymers to develop green adsorbents for wastewater treatment applications. Carbohydr Polym 2024; 323:121397. [PMID: 37940289 DOI: 10.1016/j.carbpol.2023.121397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 11/10/2023]
Abstract
The present study provides an overview of scientific developments made in the last decade in the field of green adsorbents focusing on the modifications in natural polymers and their applications such as, wastewater treatment, and ion exchange. For this purpose, an introduction to the various methods of modifying natural polymers is first given, and then the properties, application, and future priorities of green adsorbents are also discussed. Methods of modification of natural polymers under homogeneous and heterogeneous conditions using modifiers with different properties are also described. Various methods for modifying natural polymers and the use of the obtained green adsorbents are reviewed. A comparison of the sorption properties of green adsorbents based on natural polymers and other adsorbents used in industry has also been carried out. With the participation of green adsorbents based on natural polymers, the properties of treated wastewaters having toxic metal ions, organic dyes, petroleum products, and other harmful compounds was analyzed. Future perspectives on green adsorbents based on natural polymers are as also highlighted.
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Affiliation(s)
- Davronbek Bekchanov
- Department of Polymer Chemistry, Faculty of Chemistry, National University of Uzbekistan, Tashkent 100174, Uzbekistan.
| | - Mukhtar Mukhamediev
- Department of Polymer Chemistry, Faculty of Chemistry, National University of Uzbekistan, Tashkent 100174, Uzbekistan
| | | | - Peter Lieberzeit
- Faculty for Chemistry, Department of Physical Chemistry, University of Vienna, Vienna A-1090, Austria
| | - Adnan Mujahid
- School of Chemistry, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
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2
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Huang X, Lee CS, Zhang K, Alhamzani AG, Hsiao BS. Sodium Alginate-Aldehyde Cellulose Nanocrystal Composite Hydrogel for Doxycycline and Other Tetracycline Removal. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1161. [PMID: 37049257 PMCID: PMC10096764 DOI: 10.3390/nano13071161] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/14/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
A novel composite hydrogel bead composed of sodium alginate (SA) and aldehyde cellulose nanocrystal (DCNC) was developed for antibiotic remediation through a one-step cross-linking process in a calcium chloride bath. Structural and physical properties of the hydrogel bead, with varying composition ratios, were analyzed using techniques such as BET analysis, SEM imaging, tensile testing, and rheology measurement. The optimal composition ratio was found to be 40% (SA) and 60% (DCNC) by weight. The performance of the SA-DCNC hydrogel bead for antibiotic remediation was evaluated using doxycycline (DOXY) and three other tetracyclines in both single- and multidrug systems, yielding a maximum adsorption capacity of 421.5 mg g-1 at pH 7 and 649.9 mg g-1 at pH 11 for DOXY. The adsorption mechanisms were investigated through adsorption studies focusing on the effects of contact time, pH, concentration, and competitive contaminants, along with X-ray photoelectron spectroscopy analysis of samples. The adsorption of DOXY was confirmed to be the synergetic effects of chemical reaction, electrostatic interaction, hydrogen bonding, and pore diffusion/surface deposition. The SA-DCNC composite hydrogel demonstrated high reusability, with more than 80% of its adsorption efficiency remaining after five cycles of the adsorption-desorption test. The SA-DCNC composite hydrogel bead could be a promising biomaterial for future antibiotic remediation applications in both pilot and industrial scales because of its high adsorption efficiency and ease of recycling.
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Affiliation(s)
- Xiangyu Huang
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
| | - Cheng-Shiuan Lee
- New York State Center for Clean Water Technology, Stony Brook University, Stony Brook, NY 11794, USA
- Research Center for Environmental Changes, Academia Sinica, Taipei 115, Taiwan
| | - Katherine Zhang
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
| | | | - Benjamin S. Hsiao
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
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3
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Loganathan M, Raj AS, Murugesan A, Kumar PS. Effective adsorption of crystal violet onto aromatic polyimides: Kinetics and isotherm studies. CHEMOSPHERE 2022; 304:135332. [PMID: 35709844 DOI: 10.1016/j.chemosphere.2022.135332] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
The motive of this work is to synthesis aromatic polyimides by a two-step poly condensation process and the prepared aromatic polyamides (APIs) is been used as an effective functionalized adsorbent for the removal of carcinogenic crystal violet (CV) from aqueous medium. The adsorption efficiency of the APIs was enhanced by incorporation different functional moieties (varying aromatic dianhydrides with -O-, -(CF3)2-, -(CH3)2-) in the polymer structure. The initial and final concentration of CV was measured using UV-Vis spectrometer. The adsorption process was optimized by varying the parameters such as the effect of solution pH, contact time, initial dye concentration, and adsorbent dosage. Kinetics and isotherms of the adsorption system were appraised using data obtained from effect of contact time and initial dye concentration with corresponding empirical modelling techniques respectively. The evaluated results of the adsorption kinetic studies confirmed that the adsorption of API onto CV is followed a pseudo-second-order kinetic model. The adsorption behaviour and their interactions between APIs and CV are well established. The experimental results of this research output could be confirmed that APIs is a very effective adsorbent for the removal of cationic dye from aqueous.
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Affiliation(s)
- M Loganathan
- Polymer Science and Engineering Lab, Department of Chemistry, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India
| | - Arya S Raj
- Polymer Science and Engineering Lab, Department of Chemistry, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India
| | - A Murugesan
- Polymer Science and Engineering Lab, Department of Chemistry, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India.
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India
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Saha B, Debnath A, Saha B. Fabrication of PANI@Fe–Mn–Zr hybrid material and assessments in sono-assisted adsorption of methyl red dye: Uptake performance and response surface optimization. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100635] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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5
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Habibi N, Pourjavadi A. Thermally Conductive and Superhydrophobic Polyurethane Sponge for Solar-Assisted Separation of High-Viscosity Crude Oil from Water. ACS APPLIED MATERIALS & INTERFACES 2022; 14:7329-7339. [PMID: 35089699 DOI: 10.1021/acsami.1c22594] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The rapid and effective separation of high-viscosity heavy crude oil from seawater is a worldwide challenge. Herein, an ultralow density, photothermal, superhydrophobic, and thermally conductive polyurethane/polyaniline/hexagonal boron nitride@Fe3O4/polyacrylic-oleic acid resin sponge (PU/PANI/h-BN@Fe3O4/AR) was fabricated with a water contact angle (WCA) of 158°, thermal conductivity of 0.76 W m-1 K-1, density of 0.038 g cm-3, limited oxygen index (LOI) of 28.82%, and porosity of 97.97% and used for solar-assisted separation of high-viscosity crude oil from water. Photothermal components were composed of PANI and Fe3O4, while h-BN particles were used as thermally conductive and flame retardant fillers. Therefore, the illuminated sunlight irradiation on the modified sponge was converted to heat due to the activity of photothermal components. The produced heat was rapidly transferred to the environment due to the presence of h-BN for increasing the temperature of the high-viscosity crude oil and reducing oil viscosity that helped to promote its fluidity and effective absorption. The crude oil absorption capacity of this sponge increased from 4 to 57 g g-1 under irradiation of a sunlight simulator (power: 1 sun: 1 kW m-2) for 17 min due to oil viscosity reduction from 2.46 × 104 to below 100 mPa s followed by an increase in the surface temperature from 26 to 89 °C. Also, the oil absorption capacity was evaluated in a static state (172 g g-1 for chloroform), under different external magnetic fields (140.7 g g-1 for gasoline), and in a continuous state, which was 65,100 times of its own weight in the gasoline filtration process. The PU/PANI/h-BN@Fe3O4/AR sponge exhibited excellent stability against 20 times of reusing, mechanical compression, abrasion, immersing in various pH solutions, seawater, and high temperature. In all, the results confirmed that the prepared sponge is an excellent absorbent for organic solvents and highly viscous crude oil in the absence and presence of sunlight irradiation.
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Affiliation(s)
- Navid Habibi
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Tehran 11365-9516, Iran
| | - Ali Pourjavadi
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Tehran 11365-9516, Iran
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Zhong L, Li T, Zhang J, Chen S, Zhang D. A high-performance polymer hydrogel derived from konjac flying powder for removal of heavy metals. NEW J CHEM 2022. [DOI: 10.1039/d2nj03389e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Agricultural byproducts have excellent potential for pollutant remediation due to the low-cost and environmental sustainability.
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Affiliation(s)
- Liuyue Zhong
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan 430074, China
| | - Tingcheng Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan 430074, China
| | - Junheng Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan 430074, China
- Hubei Three Gorges Laboratory, Yichang, 443007, China
| | - Shaohua Chen
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan 430074, China
| | - Daohong Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, Hubei R&D Center of Hyperbranched Polymers Synthesis and Applications, South-Central Minzu University, Wuhan 430074, China
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Maruthapandi M, Saravanan A, Manohar P, Luong JHT, Gedanken A. Photocatalytic Degradation of Organic Dyes and Antimicrobial Activities by Polyaniline-Nitrogen-Doped Carbon Dot Nanocomposite. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1128. [PMID: 33925378 PMCID: PMC8145885 DOI: 10.3390/nano11051128] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/22/2021] [Accepted: 04/24/2021] [Indexed: 01/29/2023]
Abstract
Nitrogen-doped carbon nanodots (N@CDs) were prepared by hydrothermal processing of bovine serum albumin (Mw: 69,324 with 607 amino acids). A polyaniline (PANI-N@CDs) nanocomposite was then synthesized by ultrasonication and used to degrade Congo red (CR), methylene blue (MB), Rhodamine B (RhB), and crystal violet (CV) four common organic dyes. The PANI-N@CD nanocomposite simultaneously adsorbed and concentrated the dye from the bulk solution and degraded the adsorbed dye, resulting in a high rate of dye degradation. The combination of holes (h+), hydroxyl (OH•), and O2•- was involved in the N@CD-mediated photocatalytic degradation of the dyes. Under visible light illumination at neutral pH, the PANI-N@CDs were proven as an efficient adsorbent and photocatalyst for the complete degradation of CR within 20 min. MB and RhB were also degraded but required longer treatment times. These findings supported the design of remediation processes for such dyes and predicted their fate in the environment. The nanocomposite also exhibited antimicrobial activities against Gram-negative bacterium E. coli and Gram-positive bacterium S. aureus.
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Affiliation(s)
- Moorthy Maruthapandi
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel; (M.M.); (A.S.)
| | - Arumugam Saravanan
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel; (M.M.); (A.S.)
| | - Priyanka Manohar
- Department of Chemistry, School of Chemical and Biotechnology, Sastra University, Thanjavur 612001, India;
| | - John H. T. Luong
- School of Chemistry, University College Cork, T12 YN60 Cork, Ireland;
| | - Aharon Gedanken
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel; (M.M.); (A.S.)
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Simultaneous adsorption of dye and toxic metal ions using an interfacially polymerized silica/polyamide nanocomposite: Kinetic and thermodynamic studies. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113640] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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9
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Tanzifi M, Tavakkoli Yaraki M, Beiramzadeh Z, Heidarpoor Saremi L, Najafifard M, Moradi H, Mansouri M, Karami M, Bazgir H. Carboxymethyl cellulose improved adsorption capacity of polypyrrole/CMC composite nanoparticles for removal of reactive dyes: Experimental optimization and DFT calculation. CHEMOSPHERE 2020; 255:127052. [PMID: 32679636 DOI: 10.1016/j.chemosphere.2020.127052] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/07/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
In this study, polypyrrole/carboxymethyl cellulose nanocomposite particles (PPy/CMC NPs) were synthesized and applied for removal of reactive red 56 (RR56)and reactive blue 160 (RB160) as highly toxic dyes. The amount of CMC was found significantly effective on the surface adsorption efficiency. Different optimization methods including the genetic programming, response surface methodology, and artificial neural network (ANN) were used to optimize the effect of different parameters including pH, adsorption time, initial dye concentration and adsorbent dose. The maximum adsorption of RR56 and RB160 were found under the following optimum conditions: pH of 4 and 5, adsorption time of 55 min and 52 min for RR56 and RB160, respectively, initial dye concentration of 100 mg/L and adsorbent dose of 0.09 g for both dyes. were obtained for RR56 and RB160, respectively. Also, the results indicated that ANN method could predict the experimental adsorption data with higher accuracy than other methods. The analysis of ANN results indicated that the adsorbent dose is the main factor in RR56 removal, followed by time, pH and initial concentration, respectively. However, initial concentration mostly determines the RB160 removal process. The isotherm data for both dyes followed the Langmuir isotherm model with a maximum adsorption capacity of 104.9 mg/g and 120.7 mg/g for RR56 and RB160, respectively. In addition, thermodynamic studies indicated the endothermic adsorption process for both studied dyes. Moreover, DFT calculations were carried out to obtain more insight into the interactions between the dyes and adsorbent. The results showed that the hydrogen bondings and Van der Waals interactions are dominant forces between the two studied dyes and PPy/CMC composite. Furthermore, the interaction energies calculated by DFT confirmed the experimental adsorption data, where PPy/CMC resulted in higher removal of both dyes compared to PPy. The developed nanocomposite showed considerable reusability up to 3 cylces of the batch adsorption process.
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Affiliation(s)
- Marjan Tanzifi
- Department of Chemical Engineering, Ilam University, Ilam, 69315-516, Iran; Nanotechnology Research Institute, Babol Noshirvani University of Technology, Shariati Ave., Babol, Iran.
| | - Mohammad Tavakkoli Yaraki
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore; Institute of Materials Research and Engineering (IMRE), The Agency for Science, Technology and Research (A∗STAR), 2 Fusionopolis Way, #08-03, Innovis, 138634, Singapore.
| | - Zahra Beiramzadeh
- Environmental Research Laboratory, School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Leily Heidarpoor Saremi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | | | - Hojatollah Moradi
- Surface Phenomenon and Liquid-Liquid Extraction Research Lab, School of Chemical Engineering, University College of Engineering, University of Tehran, Iran
| | - Mohsen Mansouri
- Department of Chemical Engineering, Ilam University, Ilam, 69315-516, Iran
| | - Mojtaba Karami
- Department of Computer and Information Technology, Ilam University, Ilam, Iran
| | - Hossein Bazgir
- Department of Chemical Engineering, Ilam University, Ilam, 69315-516, Iran
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Facile synthesis of trimethylammonium grafted cellulose foams with high capacity for selective adsorption of anionic dyes from water. Carbohydr Polym 2020; 241:116369. [DOI: 10.1016/j.carbpol.2020.116369] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/23/2020] [Accepted: 04/23/2020] [Indexed: 01/27/2023]
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Enhanced selective adsorption ability of Cu2O nanoparticles for anionic dye by sulfur incorporation. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2914-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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12
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Das P, Debnath A, Saha B. Ultrasound‐assisted enhanced and rapid uptake of anionic dyes from the binary system onto MnFe
2
O
4
/polyaniline nanocomposite at neutral pH. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5711] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Payel Das
- Department of Civil Engineering National Institute of Technology Agartala Jirania West Tripura 799046 India
| | - Animesh Debnath
- Department of Civil Engineering National Institute of Technology Agartala Jirania West Tripura 799046 India
| | - Biswajit Saha
- Department of Physics National Institute of Technology Agartala Jirania West Tripura 799046 India
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Parvizi Ghaleh S, Khodapanah E, Tabatabaei-Nezhad SA. Comprehensive monolayer two-parameter isotherm and kinetic studies of thiamine adsorption on clay minerals: Experimental and modeling approaches. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112942] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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14
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Stejskal J. Interaction of conducting polymers, polyaniline and polypyrrole, with organic dyes: polymer morphology control, dye adsorption and photocatalytic decomposition. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00982-9] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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15
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Enhanced adsorption of Orange G from aqueous solutions by quaternary ammonium group-rich magnetic nanoparticles. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123746] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Solvent free microwave synthesis of nano polyaniline-zirconium silicate nanocomposite for removal of nitro derivatives. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Yang H, Zhang J, Liu Y, Wang L, Bai L, Yang L, Wei D, Wang W, Niu Y, Chen H. Rapid removal of anionic dye from water by poly(ionic liquid)-modified magnetic nanoparticles. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.029] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Deb A, Kanmani M, Debnath A, Bhowmik KL, Saha B. Ultrasonic assisted enhanced adsorption of methyl orange dye onto polyaniline impregnated zinc oxide nanoparticles: Kinetic, isotherm and optimization of process parameters. ULTRASONICS SONOCHEMISTRY 2019; 54:290-301. [PMID: 30712853 DOI: 10.1016/j.ultsonch.2019.01.028] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 01/17/2019] [Accepted: 01/18/2019] [Indexed: 05/26/2023]
Abstract
The fabrication of novel functionalized composite materials as adsorbent is considered to be the core research area in adsorption technology for environmental applications. Indiscriminate disposal of industrial effluents containing toxic dyes has become a serious environmental issue across the globe since last few decades. In view of above, this study focused on the performance evaluation of ZnO/polyaniline nanocomposite (ZnO-PANI-NC) for quick ultrasonic assisted adsorptive remediation of methyl orange dye from aqua matrix. ZnO nanoparticles were fabricated by a simple co-precipitation method and ZnO-PANI-NC was synthesized by in situ oxidative polymerization of aniline monomer in presence of ZnO nanoparticles. The nanocomposite was extensively characterized for its crystalline nature, morphological characteristics, surface chemical bonding, specific surface area and pore volume by employing XRD, SEM, TEM, FTIR, and BET analysis. The ZnO-PANI-NC has shown superior adsorptive performance as compared to pure PANI as well as ZnO nanoparticles and the maximum monolayer adsorption capacity of 240.84 mg/g was obtained for the ZnO-PANI-NC. Under ultrasonic environment the adsorption reaction reached to equilibrium (more than 98% MO dye removal) within 15 min of reaction. Adsorption process followed Langmuir isotherm model and second order kinetic model strictly and contribution of intra-particle diffusion was also observed. The ZnO-PANI-NC has shown its high regeneration ability (more than 86%) even after 5th consecutive cycles of adsorption-desorption. Response surface methodology based optimization was used to optimize the adsorption experimental data and maximum MO removal of 99.12% was observed at optimum sonication time 13 min, adsorbent dose 0.38 g/L and initial MO concentration at 28 mg/L.
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Affiliation(s)
- Akash Deb
- Department of Civil Engineering, National Institute of Technology Agartala, Jiania, Tripura(W) 799046, India
| | - M Kanmani
- Department of Civil Engineering, National Institute of Technology Agartala, Jiania, Tripura(W) 799046, India
| | - Animesh Debnath
- Department of Civil Engineering, National Institute of Technology Agartala, Jiania, Tripura(W) 799046, India.
| | - Kartick Lal Bhowmik
- Department of Physics, National Institute of Technology Agartala, Jiania, West Tripura 799046, India
| | - Biswajit Saha
- Department of Physics, National Institute of Technology Agartala, Jiania, West Tripura 799046, India
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