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Khan MSJ, Mohd Sidek L, Kamal T, Khan SB, Basri H, Zawawi MH, Ahmed AN. Catalytic innovations: Improving wastewater treatment and hydrogen generation technologies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120228. [PMID: 38377746 DOI: 10.1016/j.jenvman.2024.120228] [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: 10/31/2023] [Revised: 01/19/2024] [Accepted: 01/24/2024] [Indexed: 02/22/2024]
Abstract
The effective reduction of hazardous organic pollutants in wastewater is a pressing global concern, necessitating the development of advanced treatment technologies. Pollutants such as nitrophenols and dyes, which pose significant risks to both human and aquatic health, making their reduction particularly crucial. Despite the existence of various methods to eliminate these pollutants, they are not without limitations. The utilization of nanomaterials as catalysts for chemical reduction exhibits a promising alternative owing to their distinguished catalytic activity and substantial surface area. For catalytically reducing the pollutants NaBH4 has been utilized as a useful source for it because it reduces the pollutants quiet efficiently and it also releases hydrogen gas as well which can be used as a source of energy. This paper provides a comprehensive review of recent research on different types of nanomaterials that function as catalysts to reduce organic pollutants and also generating hydrogen from NaBH4 methanolysis while also evaluating the positive and negative aspects of nanocatalyst. Additionally, this paper examines the features effecting the process and the mechanism of catalysis. The comparison of different catalysts is based on size of catalyst, reaction time, rate of reaction, hydrogen generation rate, activation energy, and durability. The information obtained from this paper can be used to steer the development of new catalysts for reducing organic pollutants and generation hydrogen by NaBH4 methanolysis.
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Affiliation(s)
| | - Lariyah Mohd Sidek
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia; Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia
| | - Tahseen Kamal
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Sher Bahadar Khan
- Department of Chemistry, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Hidayah Basri
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia; Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia
| | - Mohd Hafiz Zawawi
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia; Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia
| | - Ali Najah Ahmed
- Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000, Selangor, Malaysia; School of Engineering and Technology, Sunway University, Bandar Sunway, Petaling Jaya, 47500, Malaysia.
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2
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Ahmad A, Roy PG, Zhou S, Irfan A, Kanwal F, Begum R, Farooqi ZH. Fabrication of silver nanoparticles within chitosan based microgels for catalysis. Int J Biol Macromol 2023; 240:124401. [PMID: 37044327 DOI: 10.1016/j.ijbiomac.2023.124401] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/27/2023] [Accepted: 04/06/2023] [Indexed: 04/14/2023]
Abstract
Chitosan based monodisperse poly[chitosan-N-isopropylmethacrylamide-acrylic acid] [P(CNA)] microgels were produced via precipitation polymerization. Resulting crosslinked P(CNA) micro particles were used as micro-reactors to prepare silver nanoparticles within the polymeric network by chemical reduction of Ag+ ions with sodium borohydride. Various techniques including transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy and ultraviolet-visible (UV-vis) spectroscopy were used to analyze P(CNA) microgels and Ag-P(CNA) hybrid microgels. Catalytic potential of Ag-P(CNA) hybrid system towards individual and simultaneous reduction of various nitroarenes like p-nitrophenol (pNP), o-nitrophenol (oNP), p-nitroaniline (pNA) and o-nitroaniline (oNA) into corresponding aminoarenes using sodium borohydride as a reductant in aqueous medium was evaluated. The catalytic activity of Ag-P(CNA) system towards both the individual and simultaneous reduction of nitroarenes was examined at various concentrations of catalyst. The values of pseudo first order rate constant (k1) for reduction of individual nitroarene and multiple nitroarenes were determined for comparison. The Ag-P(CNA) hybrid microgel system was found to be stable, economical and efficient catalyst for rapid individual and simultaneous reduction of nitroarenes.
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Affiliation(s)
- Azhar Ahmad
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan
| | - Prashun Ghosh Roy
- Department of Chemistry of The College of Staten Island and Ph.D. Program in Chemistry of The Graduate Centre, The City University of New York, Staten Island, NY 10314, United States
| | - Shuiqin Zhou
- Department of Chemistry of The College of Staten Island and Ph.D. Program in Chemistry of The Graduate Centre, The City University of New York, Staten Island, NY 10314, United States
| | - Ahmad Irfan
- Research Center for Advanced Materials Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Farah Kanwal
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan
| | - Robina Begum
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan.
| | - Zahoor H Farooqi
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan.
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3
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Selvi SV, Prasannan A, Yu H, Lincy V, Hong PD. Bio-mineralized tin/bismuth oxide nanoparticles with silk fibroins for efficient electrochemical detection of 2-nitroaniline in river water samples. ENVIRONMENTAL RESEARCH 2023; 221:115285. [PMID: 36640938 DOI: 10.1016/j.envres.2023.115285] [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: 11/25/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
In recent years, the usage of nitroaniline has played a vital role in pharmaceutical formulations as it is a crucial ingredient in the synthesis of pesticides and dyes. However, the level of nitroaniline existing in industrial waste keeps rising the environmental contamination. Thus, monitoring of active nitro-residuals becomes more significant in reducing the toxicity of the ecosystem. Therefore, we have taken an attempt to evaluate the hazardous pollutant 2-nitroaniline (2-NA) using the electrocatalyst viz., tin-doped bismuth oxide inserted on a biopolymer silk fibroin composite modified glassy carbon electrode (Sn-Bi2O3/SF@GCE). The Sn-Bi2O3/SF nanocomposite was synthesized through hydrothermal and co-precipitation methods. The physicochemical properties of the prepared Sn-Bi2O3/SF hybrid composite were examined by conventional microscopy and spectroscopic techniques like FE-SEM, HR-TEM, XRD, FTIR, Raman, and XPS. Furthermore, the bio-mineralized Sn-Bi2O3/SF@GCE displayed a wide linear range (0.009 μM-785.7 μM) and a lower detection limit (3.5 nM) with good sensitivity for 2-NA detection under the optimum conditions. The result shows that the Sn-Bi2O3/SF-modified GCE has good reproducibility, repeatability, and excellent selectivity for 2-NA detection in the presence of other co-interfering compounds. Moreover, the practical applicability of Sn-Bi2O3/SF@GCE sensors was investigated for the effective detection of 2-NA in real river water samples, revealing good recovery results.
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Affiliation(s)
- Subash Vetri Selvi
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Adhimoorthy Prasannan
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Hao Yu
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Varghese Lincy
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Po-Da Hong
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan.
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4
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Singh VK, Kumar K, Das A, Tiwari R, Krishnamoorthi S. Ameliorated microgel for bimetallic Ag/CuO nanoparticles and their expeditious catalytic applications. IRANIAN POLYMER JOURNAL 2023. [DOI: 10.1007/s13726-023-01155-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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5
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The catalytic performance of CuFe 2O 4@CQD nanocomposite as a high-perform heterogeneous nanocatalyst in nitroaniline group reduction. Sci Rep 2023; 13:3329. [PMID: 36849500 PMCID: PMC9971249 DOI: 10.1038/s41598-023-28935-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/27/2023] [Indexed: 03/01/2023] Open
Abstract
In this study, we fabricated an economical, non-toxic, and convenient magnetic nanocomposite of CuFe2O4 nanoparticles (NPs)/carbon quantum dots (CQDs) of citric acid via the co-precipitation method. Afterward, obtained magnetic nanocomposite was used as a nanocatalyst to reduce the ortho-nitroaniline (o-NA) and para-nitroaniline (p-NA) using a reducer agent of sodium borohydride (NaBH4). To investigate the functional groups, crystallite, structure, morphology, and nanoparticle size of the prepared nanocomposite, FT-IR, XRD, TEM, BET, and SEM were employed. The catalytic performance of the nanocatalyst was experimentally evaluated based on the ultraviolet-visible absorbance to assess the reduction of o-NA and p-NA. The acquired outcomes illustrated that the prepared heterogeneous catalyst significantly enhanced the reduction of o-NA and p-NA substrates. The analysis of the absorption showed a remarkable decrease for ortho-NA and para-NA at λmax = 415 nm in 27 s and λmax = 380 nm in 8 s, respectively. The constant rate (kapp) of ortho-NA and para-NA at the stated λmax was 8.39 × 10-2 s-1 and 5.48 × 10-1 s-1. The most highlighted result of this work was that the CuFe2O4@CQD nanocomposite fabricated from citric acid performed better than absolute CuFe2O4 NPs, since nanocomposite containing CQDs had a more significant impact than copper ferrite NPs.
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6
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Fabrication and catalytic properties of polyoxometalates immobilized on mono- and bimetallic-zeolitic imidazolate frameworks for degradation of AV7 dye. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2023. [DOI: 10.1007/s13738-022-02740-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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7
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El Mously DA, Mahmoud AM, Abdel-Raoof AM, Elgazzar E. Synthesis of Prussian Blue Analogue and Its Catalytic Activity toward Reduction of Environmentally Toxic Nitroaromatic Pollutants. ACS OMEGA 2022; 7:43139-43146. [PMID: 36467928 PMCID: PMC9713870 DOI: 10.1021/acsomega.2c05694] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/03/2022] [Indexed: 06/01/2023]
Abstract
Nitroanilines are environmentally toxic pollutants which are released into aquatic systems due to uncontrolled industrialization. Therefore, it is crucial to convert these hazardous nitroanilines into a harmless or beneficial counterpart. In this context, we present the chemical reduction of 4-nitroaniline (4-NA) by NaBH4 utilizing Prussian blue analogue (PBA) as nanocatalyst. PBAs can serve as inexpensive, eco-friendly, and easily fabricated nanocatalysts. PBA cobalt tetracyanonickelate hexacyanochromate (CoTCNi/HCCr) was stoichiometrically prepared by a facile chemical coprecipitation. Chemical, phase, composition, and molecular interactions were investigated by XRD, EDX, XPS, and Raman spectroscopy. Additionally, SEM and TEM micrographs were utilized to visualize the microstructure of the nanomaterial. The findings revealed the synthesized PBA of the cubic phase and their particles in nanosheets. The band gap was estimated from the optical absorption within the UV-vis region to be 3.70 and 4.05 eV. The catalytic performance of PBA for the reduction of 4-NA was monitored by UV-vis spectroscopy. The total reduction time of 4-NA by PBA was achieved within 270 s, and the computed rate constant (k) was 0.0103 s-1. The synthesized PBA nanoparticles have the potential to be used as efficient nanocatalysts for the reduction of different hazardous nitroaromatics.
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Affiliation(s)
- Dina A. El Mously
- Analytical
Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El-Aini, 11562Cairo, Egypt
| | - Amr M. Mahmoud
- Analytical
Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr-El-Aini, 11562Cairo, Egypt
| | - Ahmed M. Abdel-Raoof
- Pharmaceutical
Analytical Chemistry Department, Faculty of Pharmacy (Boys), Al-Azhar University, 11751Nasr City, CairoEgypt
| | - Elsayed Elgazzar
- Department
of Physics, Faculty of Science, Suez Canal
University, 41522Ismailia, Egypt
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8
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Mal D, Alveroglu E, Balouch A, Jagirani MS, Kumar S. Highly efficient and selective heterogeneous catalytic reduction of 2-nitroaniline by cerium oxide nanocatalyst under microwave irradiation. ENVIRONMENTAL TECHNOLOGY 2022; 43:3631-3645. [PMID: 33979265 DOI: 10.1080/09593330.2021.1929506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
Efficient nanocatalyst with incredible performance is highly demanding in a heterogeneous catalysis system. Herein, we report the facile fabrication of uniform and highly stable Cerium Oxide nanoparticles (CeO2 NPs), through chemical precipitation method using sodium hydroxide as reducing agent. The synthesized material is characterized through highly sophisticated techniques including UV-Visible, FT-IR, SEM, AFM, XRD, and Zeta Sizer- Potential to check the particle formation, surface morphology, topography, crystalline nature, size, and surface potential. The heterogeneous catalytic performance of CeO2 NPs has been accomplished for the reduction of 2-nitroaniline from the aqueous media. The CeO2 nanocatalyst displayed excellent reusability, while the reduction in several repetitive catalytic cycles against 2-nitroaniline under optimized conditions. The CeO2 nanocatalyst shows 99.12% efficiency within 60s reaction time under a greener source of microwave radiation.
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Affiliation(s)
- Dadu Mal
- National Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro, Pakistan
| | - Esra Alveroglu
- Istanbul Technical University, Faculty of Science and Letters, Department of Physics Engineering Maslak, Istanbul, Turkey
| | - Aamna Balouch
- National Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro, Pakistan
- Istanbul Technical University, Faculty of Science and Letters, Department of Physics Engineering Maslak, Istanbul, Turkey
| | - Muhammad Saqaf Jagirani
- National Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro, Pakistan
| | - Sagar Kumar
- National Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro, Pakistan
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9
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Investigation of catalytic potential of sodium dodecyl sulfate stabilized silver nanoparticles for the degradation of methyl orange dye. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Hussain I, Shahid M, Ali F, Irfan A, Farooqi ZH, Begum R. Methacrylic acid based microgels and hybrid microgels. REV CHEM ENG 2022. [DOI: 10.1515/revce-2021-0075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Methacrylic acid based microgels have got much consideration in the last two decades because of their potential uses in different fields owing to their responsive behaviour towards external stimuli. Synthesis, properties and uses of methacrylic acid based microgels and their hybrids have been critically reviewed in this article. With minute change in external stimuli such as pH and ionic strength of medium, these microgels show quick swelling/deswelling reversibly. The methacrylic acid based microgels have been widely reported for applications in the area of nanotechnology, drug delivery, sensing and catalysis due to their responsive behaviour. A critical review of current research development in this field along with upcoming perception is presented here. This discussion is concluded with proposed probable future studies for additional growth in this field of research.
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Affiliation(s)
- Iftikhar Hussain
- School of Chemistry , University of the Punjab , New Campus , Lahore 54590 , Pakistan
| | - Muhammad Shahid
- School of Chemistry , University of the Punjab , New Campus , Lahore 54590 , Pakistan
| | - Faisal Ali
- School of Chemistry , University of the Punjab , New Campus , Lahore 54590 , Pakistan
- Department of Chemistry , The University of Lahore , 1-KM Defence road , Main Campus , Lahore 53700 , Pakistan
| | - Ahmad Irfan
- Research Center for Advanced Materials Science , King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia
- Department of Chemistry, Faculty of Science , King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia
| | - Zahoor H. Farooqi
- School of Chemistry , University of the Punjab , New Campus , Lahore 54590 , Pakistan
| | - Robina Begum
- School of Chemistry , University of the Punjab , New Campus , Lahore 54590 , Pakistan
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11
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Ambreen J, Al-Harbi F, Sakhawat H, Ajmal M, Naeem H, Farooqi ZH, Batool N, Siddiq M. Fabrication of poly (N-vinylcaprolactam-co-acrylic acid)-silver nanoparticles composite microgel with substantial potential of hydrogen peroxide sensing and catalyzing the reduction of water pollutants. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Green synthesized superparamagnetic iron oxide nanoparticles for water treatment with alternative recyclability. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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13
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Baruah R, Yadav A, Moni Das A. Evaluation of the multifunctional activity of silver bionanocomposites in environmental remediation and inhibition of the growth of multidrug-resistant pathogens. NEW J CHEM 2022. [DOI: 10.1039/d1nj06198d] [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
Imperata cylindrica cellulose supported Ag bionanocomposites purified industrial water and controlled the contagious diseases with high potential activity.
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Affiliation(s)
- Rebika Baruah
- Natural product Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, Assam, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Archana Yadav
- Biotechnology Group, Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, Assam, India
| | - Archana Moni Das
- Natural product Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, Assam, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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14
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Zahid S, Alzahrani AK, Kizilbash N, Ambreen J, Ajmal M, Farooqi ZH, Siddiq M. Preparation of stimuli responsive microgel with silver nanoparticles for biosensing and catalytic reduction of water pollutants. RSC Adv 2022; 12:33215-33228. [DOI: 10.1039/d2ra05475b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
Poly(N-isopropylacrylamide/2-acrylamido-2-methylpropane sulfonic acid) microgel was prepared and fabricated with silver nanoparticles to design a material for dual functions of catalyst and sensor.
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Affiliation(s)
- Sara Zahid
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - A. Khuzaim Alzahrani
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Northern Border University, Arar-91431, Saudi Arabia
| | - Nadeem Kizilbash
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Northern Border University, Arar-91431, Saudi Arabia
| | - Jaweria Ambreen
- Department of Chemistry, COMSATS University Islamabad, Park Road, 45550, Islamabad, Pakistan
| | - Muhammad Ajmal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Zahoor H. Farooqi
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Muhammad Siddiq
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
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15
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Hierarchical Graphitic Carbon-Encapsulating Cobalt Nanoparticles for Catalytic Hydrogenation of 2,4-Dinitrophenol. Catalysts 2021. [DOI: 10.3390/catal12010039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Cobalt hierarchical graphitic carbon nanoparticles (Co@HGC) (1), (2), and (3) were prepared by simple pyrolysis of a cobalt phenanthroline complex in the presence of anthracene at different temperatures and heating times, under a nitrogen atmosphere. The samples were used for the catalytic hydrogenation of 2,4-dinitrophenol. Samples (1) and (3) were prepared by heating at 600 °C and 800 °C respectively, while (2) was prepared by heating at 600 °C with an additional intermediate stage at 300 °C. This work revealed that graphitization was catalyzed by cobalt nanoparticles and occurred readily at temperatures of 600 °C and above. The nanocatalysts were characterized by Scanning Electron Microscopy SEM, energy dispersive X-ray analysis EDX, Raman, Xrd, and XPS. The analysis revealed the presence of cobalt and cobalt oxide species as well as graphitized carbon, while TEM analysis indicated that the nanocatalyst contains mainly cobalt nanoparticles of 3–20 nm in size embedded in a lighter graphitic web. Some bamboo-like multiwall carbon nanotubes and graphitic onion-like nanostructures were observed in (3). The structures and chemical properties of the three catalysts were correlated with their catalytic activities. The apparent rate constants kapp (min−1) of the 2,4-dinitrophenol reductions were 0.34 for (2), 0.17 for (3), 0.04 for (1), 0.005 (no catalyst). Among the three studied catalysts, the highest rate constant was obtained for (2), while the highest conversion yield was achieved by (3). Our data show that an increase in agglomeration of the cobalt species reduces the catalytic activity, while an increase in pyrolysis temperature improves the conversion yield. The nanocatalyst enhances hydrogen generation in the presence of sodium borohydride and reduces 2,4-dinitrophenol to p-diamino phenol. The best nanocatalyst (3) was prepared at 800 °C. It consisted of uniformly distributed cobalt nanoparticles sheltered by hierarchical graphitic carbon. The nanocatalyst is easily separated and recycled from the reaction system and proved to be degradation resistant, to have robust stability, and high activity towards the reduction reaction of nitrophenols.
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16
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Hussain I, Ali F, Shahid M, Begum R, Irfan A, Wu W, Shaukat S, Farooqi ZH. Silver nanoparticles supported on smart polymer microgel system for highly proficient catalytic reduction of Cr
+6
to Cr
+3
with formic acid. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6405] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Iftikhar Hussain
- School of chemistry University of the Punjab, New Campus Lahore Pakistan
| | - Faisal Ali
- School of chemistry University of the Punjab, New Campus Lahore Pakistan
- Department of Chemistry The University of Lahore Lahore Pakistan
| | - Muhammad Shahid
- School of chemistry University of the Punjab, New Campus Lahore Pakistan
| | - Robina Begum
- School of chemistry University of the Punjab, New Campus Lahore Pakistan
| | - Ahmad Irfan
- Research Center for Advanced Materials Science, Faculty of Science King Khalid University Abha Saudi Arabia
- Department of Chemistry, Faculty of Science King Khalid University Abha Saudi Arabia
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering Xiamen University Xiamen China
| | - Saadia Shaukat
- Department of Chemistry Government College Women University Sialkot Pakistan
| | - Zahoor H. Farooqi
- School of chemistry University of the Punjab, New Campus Lahore Pakistan
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17
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Shahid M, Farooqi ZH, Begum R, Arif M, Azam M, Irfan A, Farooq U. Multi-functional organic–inorganic hydrogel microspheres as efficient catalytic system for reduction of toxic dyes in aqueous medium. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2020-1739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Poly(N-isopropylacrylamide-acrylamide-methacrylic acid) [p(NAM)] colloidal particles were synthesized and stabilized in aqueous medium. Ag nanoparticles were fabricated inside the p(NAM) system by in-situ reduction of Ag+ ions with NaBH4 to obtain Ag-p(NAM) organic–inorganic hybrid with fascinating catalytic properties. Various characterization techniques including XRD, FTIR, DLS, TEM and UV–visible spectroscopy were used to confirm the fabrication of p(NAM) and Ag-p(NAM) in aqueous medium. Loading of silver nanoparticles into the p(NAM) does not affect responsive properties of the colloidal system. Ag-p(NAM) system was used as catalyst for reduction of toxic dyes including methyl orange (MO) and Congo red (CR) from aqueous medium. Ag-p(NAM) catalyzed reduction of dyes was carried out under different reaction conditions to explore the catalytic process of degradation. The Ag-p(NAM) catalytic system is recyclable and reusable with almost same catalytic activity up to four cycles.
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Affiliation(s)
- Muhammad Shahid
- School of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Zahoor H. Farooqi
- School of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Robina Begum
- School of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Muhammad Arif
- School of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan
- Department of Chemistry , School of Science, University of Management and Technology , Lahore 54770 , Pakistan
| | - Muhammad Azam
- School of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Ahmad Irfan
- Research Center for Advanced Materials Science, King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia
- Department of Chemistry , Faculty of Science, King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia
| | - Umar Farooq
- School of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan
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18
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Critical analysis of various supporting mediums employed for the incapacitation of silver nanomaterial for aniline and phenolic pollutants: A review. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-017-0192-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Mohan A, Peter J, Rout L, Thomas AM, Nagappan S, Parambadath S, Zhang W, Selvaraj M, Ha CS. Facile synthesis of silver nanoparticles stabilized dual responsive silica nanohybrid: A highly active switchable catalyst for oxidation of alcohols in aqueous medium. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Krishnapandi A, Muthukutty B, Chen SM, Arul KT, Shiuan HJ, Selvaganapathy M. Bismuth molybdate incorporated functionalized carbon nanofiber as an electrocatalytic tool for the pinpoint detection of organic pollutant in life samples. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111828. [PMID: 33385681 DOI: 10.1016/j.ecoenv.2020.111828] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
Herein, we fabricated a feasible and accurate sensing platform for the quantification of toxic organic pollutant 2-nitroaniline (2-NA) in water samples through electrocatalyst made up of bismuth molybdate (Bi2MoO6, BMO) functionalized carbon nanofiber (f-CNF) modified electrode. The preparation of BMO/f-CNF composite is of two methods, such as co-precipitation (C-BMO/f-CNF) and ultrasonication method (U-BMO/f-CNF). The physicochemical properties of the composites were characterized by XRD, FTIR, Raman, BET, FE-SEM, and HR-TEM techniques. At U-BMO/f-CNF, the charge transfer resistance was low (Rct = 12.47 Ω) compared to C-BMO/f-CNF because nanosized U-BMO particles correctly aim at the defective sites of the f-CNF surface wall. Further, the electrocatalytic activity of C&U-BMO/f-CNF composites was examined by cyclic voltammetry (CV) and differential pulse voltammetry techniques (DPV) for the electrochemical detection of 2-nitroaniline (2-NA). The U-BMO/f-CNF/GCE shows a higher cathodic current, wide dynamic linear range of 0.01-168.01 µM, and superior electrocatalytic activity with a low detection limit (0.0437 µM) and good sensitivity (0.6857 μA μM-1 cm-2). The excellent selectivity nature of U-BMO/f-CNF/GCE was observed in the presence of various organic pollutants and a few toxic metal cations. The practical applicability such as stability, repeatability towards 2-NA outcomes with accepted results. Besides, the practical viability of as proposed U-BMO/f-CNF sensor was investigated in soil and lake water samples delivers good recovery results. Hence from these analyses, we conclude that U-BMO/f-CNF/GCE potential for the determination of hazardous environmental pollutant 2-NA.
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Affiliation(s)
- Alagumalai Krishnapandi
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Balamurugan Muthukutty
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
| | - Kumaravelu Thanigai Arul
- Energy and Biophotonic Laboratory, Department of Physics, AMET (Deemed to be University), Kanathur, Chennai, Tamil Nadu 603 112, India
| | - Huang Ji Shiuan
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
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21
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Stabilization of silver nanoparticles in crosslinked polymer colloids through chelation for catalytic degradation of p-nitroaniline in aqueous medium. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138263] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Naeem H, Ajmal M, Khatoon F, Siddiq M, Khan GS. Synthesis of graphene oxide–metal nanoparticle nanocomposites for catalytic reduction of nitrocompounds in aqueous medium. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2021. [DOI: 10.1080/16583655.2021.1991736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hina Naeem
- Department of Chemistry, Rawalpindi Women University, Rawalpindi, Pakistan
| | - Muhammad Ajmal
- Department of Chemistry, University of Education, Attock Campus., Attock, Pakistan
| | - Fatima Khatoon
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Siddiq
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Gul Shahzada Khan
- Department of Chemistry, College of Science, University of Bahrain, Sakhir, Bahrain
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23
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Hasan S, Rauf A. The development of a multifunctional 9,10-dibromooctadecanoic acid-encapsulated heterostructure (Ag@Ag 2O) as a nanocatalyst against water toxicity. NEW J CHEM 2021. [DOI: 10.1039/d1nj01013a] [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
Fatty acid derivatives capped Ag@Ag2O CSN have been easily synthesized. Comparative catalytic degradation studies against various water contaminants, MB, MO and Cr(vi) have been performed. The experimental results are in favor of CSN, compared to simple fatty acid-coated nanoparticles.
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Affiliation(s)
- Shazia Hasan
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Abdul Rauf
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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24
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Plant Extract Induced Biogenic Preparation of Silver Nanoparticles and Their Potential as Catalyst for Degradation of Toxic Dyes. COATINGS 2020. [DOI: 10.3390/coatings10121235] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This study focusses on the synthesis of silver nanoparticles (Ag-nPs) by citrus fruit (Citrus paradisi) peel extract as reductant while using AgNO3 salt as source of silver ions. Successful preparation of biogenic CAg-nPs catalyst was confirmed by turning the colorless reaction mixture to light brown. The appearance of surface Plasmon resonance (SPR) band in UV-Vis spectra further assured the successful fabrication of nPs. Different techniques such as FTIR, TGA and DLS were adopted to characterize the CAg-nPs. CAg-nPs particles were found to excellent catalysts for reduction of Congo red (CR), methylene blue (MB), malachite green (MG), Rhodamine B (RhB) and 4-nitrophenol (4-NP). Reduction of CR was also performed by varying the contents of NaBH4, CR and catalyst to optimize the catalyst activity. The pseudo first order kinetic model was used to explore the value of rate constants for reduction reactions. Results also interpret that the catalytic reduction of dyes followed the Langmuir–Hinshelwood (LH) mechanism. According to the LH mechanism, the CAg-nPs role in catalysis was explained by way of electrons transfer from donor (NaBH4) to acceptor (dyes). Due to reusability and green synthesis of the CAg-nPs catalyst, it can be a promising candidate for the treatment of water sources contaminated with toxic dyes.
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25
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Farooqi ZH, Masaud A, Begum R, Irfan A. Physicochemical aspects of reduction of 3-Nitroaniline using methacrylamide based nano-hybrid catalyst. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Laghrib F, Aghris S, Ajermoun N, Hrioua A, Bakasse M, Lahrich S, El Mhammedi MA. Recent progress in controlling the synthesis and assembly of nanostructures: Application for electrochemical determination of p-nitroaniline in water. Talanta 2020; 219:121234. [PMID: 32887125 DOI: 10.1016/j.talanta.2020.121234] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/30/2020] [Accepted: 05/31/2020] [Indexed: 01/11/2023]
Abstract
The development of nanoparticle research has grown considerably in recent years. One of the reasons for the considerable current interest in nanoparticles is because such materials frequently display unusual physical (structural, electronic, magnetic, and optical) and chemical (catalytic) properties. The development of nanomaterials is of interest to the scientific community and industrial companies. Different methods (physical, chemical, and biological) allow their manufacture. In particular, a major effort has been devoted to the development and improvement of synthesis methods in order to obtain nano-objects of controlled size and shape, a necessary pre-requisite to their organization, and to the study of their intrinsic and collective properties. Reviews play an important role in keeping interested parties up to date on the current state of the research in any academic field. This review aims to focus on the development of nanoparticles and stabilization with adsorbed/covalently attached ligands in solution phase since these factors are deeply related to the origins of the particles' stability, the media to which they are exposed, and the involved applications. This study also examines the factors that influence the synthesis of nanoparticles. It aims to provide an overview of existing electrochemical sensors, particularly those that operate with nanomaterial-based electrode modifications for p-nitroaniline (PNA) determination and to propose guidelines for related research and development activities. Emphasis was placed on the procedure for the analysis of PNA in water samples using nanosilver-based electrodes.
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Affiliation(s)
- F Laghrib
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25000 Khouribga, Morocco
| | - S Aghris
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25000 Khouribga, Morocco
| | - N Ajermoun
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25000 Khouribga, Morocco
| | - A Hrioua
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25000 Khouribga, Morocco
| | - M Bakasse
- University Chouaib Doukkali, Organic Micropollutants Analysis Team, Faculty of Sciences, El Jadida, Morocco
| | - S Lahrich
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25000 Khouribga, Morocco
| | - M A El Mhammedi
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25000 Khouribga, Morocco.
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27
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Naseem K, Farooqi ZH, Begum R, Ur Rehman MZ, Ghufran M, Wu W, Najeeb J, Irfan A. Synthesis and characterization of poly(N-isopropylmethacrylamide-acrylic acid) smart polymer microgels for adsorptive extraction of copper(II) and cobalt(II) from aqueous medium: kinetic and thermodynamic aspects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:28169-28182. [PMID: 32415448 DOI: 10.1007/s11356-020-09145-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
Extraction of toxic heavy metal ions from aqueous medium using poly(N-isopropylmethacrylamide-acrylic acid) (P(NiPmA-Ac)) microgels as adsorbent has been investigated in present study. P(NiPmA-Ac) microgel particles were prepared by free radical precipitation polymerization in aqueous medium. Morphology and size of the prepared microgel particles was investigated by transmission electron microscopy (TEM). The Fourier transform infrared (FT-IR) analysis of pure and metal ion-loaded microgel particles was performed to confirm the presence of various functionalities of microgel particles and their interaction with metal ions extracted from aqueous medium. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to investigate the thermal stability and thermal behavior of pure and metal ion-loaded microgel particles. Contents of metal ions loaded into microgel particles were determined by TGA analysis. It was observed that P(NiPmA-Ac) particles have a potential to extract Cu2+ and Co2+ ions from aqueous medium. The Freundlich adsorption isotherm model best interprets the adsorption process as compared with the Langmuir model. Value of R2 according to the Freundlich adsorption isotherm was found to be 0.994 and 0.993 for Cu2+ and Co2+ ions, respectively. Adsorption process was followed by pseudo second order kinetics for Cu2+ and Co2+ ions with R2 values of 0.999 for both metal ions. Thermodynamic study showed that adsorption process was spontaneous, feasible, and endothermic in nature. Entropy was decreased at adsorbate-adsorbent interface during adsorption process. Adsorbent was recycled and reused for removal of Cu2+ ions, and adsorption efficiency was found to be maintained up to three cycles. Microgel particles also have ability to extract Cu2+ ions efficiently from electroplating wastewater. Graphical abstract.
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Affiliation(s)
- Khalida Naseem
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, 54590, Pakistan
- Faculty of Sciences, University of Central Punjab, Lahore, 54000, Pakistan
| | - Zahoor H Farooqi
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, 54590, Pakistan.
| | - Robina Begum
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, 54590, Pakistan.
| | - Muhammad Zia Ur Rehman
- Department of Chemical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan
| | - Maida Ghufran
- Department of Chemistry, Kinnaird College for Women, Lahore, 54000, Pakistan
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, China
| | - Jawayria Najeeb
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, 54590, Pakistan
| | - Ahmad Irfan
- Research Center for Advanced Materials Science, King Khalid University, Abha, Aseer, 61413, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Aseer, 61413, Saudi Arabia
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28
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Naseem K, Begum R, Farooqi ZH, Wu W, Irfan A. Core‐shell microgel stabilized silver nanoparticles for catalytic reduction of aryl nitro compounds. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5742] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Khalida Naseem
- Institute of ChemistryUniversity of the Punjab New Campus Lahore 54590 Pakistan
- Faculty of ScienceUniversity of the Central Punjab Lahore 54000 Pakistan
| | - Robina Begum
- Institute of ChemistryUniversity of the Punjab New Campus Lahore 54590 Pakistan
| | - Zahoor H. Farooqi
- Institute of ChemistryUniversity of the Punjab New Campus Lahore 54590 Pakistan
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Ahmad Irfan
- Research Center for Advanced Materials ScienceKing Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia
- Department of Chemistry, Faculty of ScienceKing Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia
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29
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Zhan F, Yin J, Zhou J, Jiao T, Zhang L, Xia M, Bai Z, Peng Q. Facile Preparation and Highly Efficient Catalytic Performances of Pd-Cu Bimetallic Catalyst Synthesized via Seed-Mediated Method. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 10:E6. [PMID: 31861299 PMCID: PMC7022491 DOI: 10.3390/nano10010006] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 12/20/2022]
Abstract
With the rapid development of industry, the problem of environmental pollution has become increasingly prominent. Exploring and preparing green, efficient, and low cost catalysts has become the key challenge for scientists. However, some conventional preparation methods are limited by conditions, such as cumbersome operation, high energy consumption, and high pollution. Here, a simple and efficient seed-mediated method was designed and proposed to synthesize a highly efficient bimetallic catalyst for catalyzing nitro compounds. A Pd-Cu bimetallic composite (BCM) can be prepared by synthesizing the original seed crystal of precious metal palladium, then growing the mature nanocrystalline palladium and supporting the transition metal copper. Importantly, after eight consecutive catalytic cycles, the conversion of the catalyzed 2-NA was 84%, while the conversion of the catalyzed 4-NP was still 72%. And the catalytic first order rates of 2-NA and 4-NP constants were 0.015 s-1, and 0.069 s-1, respectively. Therefore, current research of nanocomposites catalyst showed great significance for serious environmental pollution problems and the protection of living environment, providing a new idea for the preparation of new bimetallic catalytic materials.
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Affiliation(s)
- Fangke Zhan
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China; (F.Z.); (Q.P.)
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China; (J.Y.); (L.Z.); (M.X.)
| | - Juanjuan Yin
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China; (J.Y.); (L.Z.); (M.X.)
| | - Jingxin Zhou
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China; (J.Y.); (L.Z.); (M.X.)
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China; (F.Z.); (Q.P.)
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China; (J.Y.); (L.Z.); (M.X.)
| | - Lexin Zhang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China; (J.Y.); (L.Z.); (M.X.)
| | - Meirong Xia
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China; (J.Y.); (L.Z.); (M.X.)
| | - Zhenhua Bai
- National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, China;
| | - Qiuming Peng
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China; (F.Z.); (Q.P.)
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30
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Shahid M, Farooqi ZH, Begum R, Arif M, Wu W, Irfan A. Hybrid Microgels for Catalytic and Photocatalytic Removal of Nitroarenes and Organic Dyes From Aqueous Medium: A Review. Crit Rev Anal Chem 2019; 50:513-537. [PMID: 31559830 DOI: 10.1080/10408347.2019.1663148] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Polymer microgels loaded with inorganic nanoparticles have gained much attention as catalytic systems for reduction of toxic chemicals. Enhanced catalytic properties of hybrid microgels are related to the stimuli responsive nature of microgels and extraordinary stability of nanoparticles within network of polymer microgels. Catalytic properties of hybrid microgels can be tuned very easily by slight variation in environmental conditions. Herein we have reviewed catalytic reduction of toxic chemicals such as nitroarenes and organic dyes in the presence of appropriate hybrid microgel catalytic systems under different operating conditions of reaction. Recent advancements in catalytic behavior of hybrid microgels with special emphasis on their ability to catalytically degrade various toxic chemicals has been presented in this review.
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Affiliation(s)
- Muhammad Shahid
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Zahoor H Farooqi
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Robina Begum
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Muhammad Arif
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan.,Department of Chemistry, School of Science, University of Management and Technology, C-II Johar Town, Lahore, Pakistan
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Ahmad Irfan
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia.,Research Center for Advanced Materials Science, King Khalid University, Abha, Saudi Arabia
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31
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Farooqi ZH, Khalid R, Begum R, Farooq U, Wu Q, Wu W, Ajmal M, Irfan A, Naseem K. Facile synthesis of silver nanoparticles in a crosslinked polymeric system by in situ reduction method for catalytic reduction of 4-nitroaniline. ENVIRONMENTAL TECHNOLOGY 2019; 40:2027-2036. [PMID: 29384040 DOI: 10.1080/09593330.2018.1435737] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 01/29/2018] [Indexed: 05/27/2023]
Abstract
In this study, poly(N-isopropylmethacrylamide-co-methacrylic acid) microgels prepared by free radical precipitation polymerization were used as micro-reactors for the synthesis and stabilization of silver nanoparticles. UV-Visible spectroscopy, Transmission Electron Microscopy and Fourier-transform infrared spectroscopy were used to characterize both pure and hybrid microgels. The catalytic reduction of 4-nitroaniline was carried out in the presence of hybrid microgels to test their catalytic activity, and the catalysis mechanism was explored by varying the concentrations of reacting species like 4-nitroaniline and NaBH4, as well as the dose of the catalyst. The kinetic data indicates that this reaction follows pseudo-first order. The variation in apparent rate constant (kapp) with respect to NaBH4 concentration also discloses it to be the following Langmuir-Hinshelwood mechanism. The relationship between catalyst concentration and apparent rate constant was found to be increasing in a linear manner. The data obtained also confirmed that silver nanoparticles loaded microgels have the potential to be used as an excellent micro-reactor for selective reduction of 4-nitroaniline to p-phenylenediamine.
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Affiliation(s)
- Zahoor H Farooqi
- a Institute of Chemistry, University of the Punjab , Lahore , Pakistan
| | - Rida Khalid
- a Institute of Chemistry, University of the Punjab , Lahore , Pakistan
| | - Robina Begum
- b Center of Undergraduate studies, University of the Punjab , Lahore , Pakistan
| | - Umar Farooq
- a Institute of Chemistry, University of the Punjab , Lahore , Pakistan
| | - Qingshi Wu
- c State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University , Xiamen , People's Republic of China
- d Department of Chemistry , College of Chemistry and Chemical Engineering, Xiamen University , Xiamen , People's Republic of China
| | - Weitai Wu
- c State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University , Xiamen , People's Republic of China
- d Department of Chemistry , College of Chemistry and Chemical Engineering, Xiamen University , Xiamen , People's Republic of China
| | - Muhammad Ajmal
- e Department of Chemistry , University of Wah , Wah Cantt , Pakistan
| | - Ahmad Irfan
- f Research Center for Advanced Material Science (RCAMS), King Khalid University , Abha , Saudi Arabia
- g Department of Chemistry, Faculty of Science , King Khalid University , Abha , Saudi Arabia
| | - Khalida Naseem
- a Institute of Chemistry, University of the Punjab , Lahore , Pakistan
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32
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Atta AM, Gafer AK, Al‐Lohedan HA, Abdullah MMS, Ezzat AO. Preparation of magnetite and silver poly(2‐acrylamido‐2‐methyl propane sulfonic acid‐
co
‐acrylamide) nanocomposites for adsorption and catalytic degradation of methylene blue water pollutant. POLYM INT 2019. [DOI: 10.1002/pi.5809] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ayman M Atta
- Surfactants Research Chair, Chemistry Department, College of ScienceKing Saud University Riyadh Saudi Arabia
| | - Amany K Gafer
- Petroleum Application DepartmentEgyptian Petroleum Research Institute Cairo Egypt
| | - Hamad A Al‐Lohedan
- Surfactants Research Chair, Chemistry Department, College of ScienceKing Saud University Riyadh Saudi Arabia
| | - Mahmood MS Abdullah
- Surfactants Research Chair, Chemistry Department, College of ScienceKing Saud University Riyadh Saudi Arabia
| | - Abdelrahman O Ezzat
- Surfactants Research Chair, Chemistry Department, College of ScienceKing Saud University Riyadh Saudi Arabia
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33
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Naseem K, Begum R, Wu W, Usman M, Irfan A, Al-Sehemi AG, Farooqi ZH. Adsorptive removal of heavy metal ions using polystyrene-poly(N-isopropylmethacrylamide-acrylic acid) core/shell gel particles: Adsorption isotherms and kinetic study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.054] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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34
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Hydrogelator as growth-controlling agent for enhancing the catalytic activity of NiB amorphous alloy catalyst. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3591-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Begum R, Najeeb J, Ahmad G, Wu W, Irfan A, Al-sehemi AG, Farooqi ZH. Synthesis and characterization of poly(N-isopropylmethacrylamide-co-acrylic acid) microgels for in situ fabrication and stabilization of silver nanoparticles for catalytic reduction of o-nitroaniline in aqueous medium. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.09.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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Naseem K, Farooqi ZH, Begum R, Ghufran M, Rehman MZU, Najeeb J, Irfan A, Al-Sehemi AG. Poly(N-isopropylmethacrylamide-acrylic acid) microgels as adsorbent for removal of toxic dyes from aqueous medium. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.039] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Baran T. Pd(0) nanocatalyst stabilized on a novel agar/pectin composite and its catalytic activity in the synthesis of biphenyl compounds by Suzuki-Miyaura cross coupling reaction and reduction of o-nitroaniline. Carbohydr Polym 2018; 195:45-52. [DOI: 10.1016/j.carbpol.2018.04.064] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 04/13/2018] [Accepted: 04/16/2018] [Indexed: 10/17/2022]
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38
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Eco-friendly approach to mineralise 2-nitroaniline using subcritical water oxidation method: use of ANN and RSM in the optimisation and modeling of the process. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1487-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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39
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Silver Nanoparticles Engineered Polystyrene-Poly(N-isopropylmethacrylamide-acrylic acid) Core Shell Hybrid Polymer Microgels for Catalytic Reduction of Congo Red. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800211] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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An easily recoverable and highly reproducible agar-supported palladium catalyst for Suzuki-Miyaura coupling reactions and reduction of o-nitroaniline. Int J Biol Macromol 2018; 115:249-256. [DOI: 10.1016/j.ijbiomac.2018.04.057] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/27/2018] [Accepted: 04/10/2018] [Indexed: 01/03/2023]
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41
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Synthesis and Characterization of pH-Responsive Organic–Inorganic Hybrid Material with Excellent Catalytic Activity. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0879-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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42
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Chen HF, Hung MJ, Hung TH, Tsai YW, Su CW, Yang J, Huang GG. Single-Step Preparation of Silver-Doped Magnetic Hybrid Nanoparticles for the Catalytic Reduction of Nitroarenes. ACS OMEGA 2018; 3:3340-3347. [PMID: 31458589 PMCID: PMC6641353 DOI: 10.1021/acsomega.7b01987] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 03/08/2018] [Indexed: 05/14/2023]
Abstract
This study adopts a simple but facile process for preparing silver-doped magnetic nanoparticles by the spontaneous oxidation-reduction/coprecipitation method. The preparation can be achieved in one pot with a single step, and the prepared silver-doped magnetic nanoparticles were utilized as nanocatalysts for the reduction of o-nitroaniline. Utilizing the magnetic characteristics of the prepared nanoparticles, the catalytic reactions can be carried out under quasi-homogeneous condition and the nanocatalysts can be easily collected after the conversion is achieved. It can be revealed from the results that the morphologies and the composition of the prepared silver-doped magnetic nanoparticles can be adjusted by changing the conditions during the production, which affects the efficacy of the catalysis. In addition, the catalysis efficiency is also controlled by the pH, temperature, and the amounts of nanocatalysts used during the catalytic reaction. Finally, the silver-doped magnetic nanocatalysts prepared in this study own the advantages of easy preparation, room-temperature catalysis, high conversion ability, and recyclability, which make them more applicable in real utilities.
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Affiliation(s)
- Hui-Fen Chen
- Department
of Medicinal and Applied Chemistry, Department of Medical Research, and School of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Mei-Jou Hung
- Department
of Medicinal and Applied Chemistry, Department of Medical Research, and School of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Tzu-Hsin Hung
- Department
of Medicinal and Applied Chemistry, Department of Medical Research, and School of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Ya-Wen Tsai
- Department
of Medicinal and Applied Chemistry, Department of Medical Research, and School of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chun-Wei Su
- Department
of Medicinal and Applied Chemistry, Department of Medical Research, and School of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jyisy Yang
- Department
of Chemistry, National Chung Hsing University, Taichung 420, Taiwan
| | - Genin Gary Huang
- Department
of Medicinal and Applied Chemistry, Department of Medical Research, and School of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- E-mail: . Phone: +886-7-3121101 ext. 2810. Fax: +886-7-3125339
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43
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Begum R, Farooqi ZH, Naseem K, Ali F, Batool M, Xiao J, Irfan A. Applications of UV/Vis Spectroscopy in Characterization and Catalytic Activity of Noble Metal Nanoparticles Fabricated in Responsive Polymer Microgels: A Review. Crit Rev Anal Chem 2018; 48:503-516. [DOI: 10.1080/10408347.2018.1451299] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Robina Begum
- Centre for Undergraduate Studies, University of the Punjab, New Campus, Lahore, Pakistan
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
- Department of Chemistry, University of Liverpool, Liverpool, UK
| | - Zahoor H. Farooqi
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Khalida Naseem
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Faisal Ali
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Madeeha Batool
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Jianliang Xiao
- Department of Chemistry, University of Liverpool, Liverpool, UK
| | - Ahmad Irfan
- Research Center for Advanced Materials Science, King Khalid University, Abha, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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44
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Designed synthesis of silver nanoparticles in responsive polymeric system for their thermally tailored catalytic activity towards hydrogenation reaction. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0016-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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45
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Naseem K, Begum R, Wu W, Irfan A, Farooqi ZH. Advancement in Multi-Functional Poly(styrene)-Poly(N-isopropylacrylamide) Based Core–Shell Microgels and their Applications. POLYM REV 2018. [DOI: 10.1080/15583724.2017.1423326] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Khalida Naseem
- Institute of Chemistry, University of the Punjab, New Campus Lahore, Punjab, Pakistan
| | - Robina Begum
- Centre for Undergraduate Studies, University of the Punjab, New Campus Lahore, Pakistan
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, China
| | - Ahmad Irfan
- Research Center for Advanced Materials Science, King Khalid University, Abha, Aseer, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Aseer, Saudi Arabia
| | - Zahoor H. Farooqi
- Institute of Chemistry, University of the Punjab, New Campus Lahore, Punjab, Pakistan
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46
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Naseem K, Hussain Farooqi Z, Zia Ur Rehman M, Atiq Ur Rehman M, Ghufran M. Microgels as efficient adsorbents for the removal of pollutants from aqueous medium. REV CHEM ENG 2018. [DOI: 10.1515/revce-2017-0042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Abstract
Due to their responsive behavior, high stability, and reusability, microgels have gained importance as adsorbents for the removal of aqueous pollutants such as heavy metals, nitroarenes, organic matter, and toxic dyes. However, there are few challenges that need to be addressed to make microgels as potential adsorbents for the removal of aqueous pollutants. This review article encircles the recent developments in the field of microgel usage as adsorbents for the extraction of aqueous pollutants. Many factors that influence the adsorption of pollutants such as pH, temperature of the medium, agitation time, pollutant concentration, microgel dose, and feed contents of microgels have been discussed in detail. Different adsorption isotherms as well as the kinetic and thermodynamic aspects of the adsorption process have also been enlightened to interpret the insight of the adsorption process. Microgel recovery from the reaction mixture as well as reusability is discussed from the financial point of view. The biodegradability of microgels induced due to the incorporation of specific biomacromolecules is also discussed.
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Affiliation(s)
- Khalida Naseem
- Institute of Chemistry , University of the Punjab, New Campus , Lahore 54590 , Pakistan
- Department of Chemistry , Kinnaird College for Women , Lahore 54000 , Pakistan
| | | | - Muhammad Zia Ur Rehman
- Department of Chemical Engineering , University of Engineering and Technology , Lahore 54890 , Pakistan
| | | | - Maida Ghufran
- Department of Chemistry , Kinnaird College for Women , Lahore 54000 , Pakistan
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47
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Naeem H, Ajmal M, Muntha S, Ambreen J, Siddiq M. Synthesis and characterization of graphene oxide sheets integrated with gold nanoparticles and their applications to adsorptive removal and catalytic reduction of water contaminants. RSC Adv 2018; 8:3599-3610. [PMID: 35542905 PMCID: PMC9077651 DOI: 10.1039/c7ra12030c] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 12/31/2017] [Indexed: 11/21/2022] Open
Abstract
Here, we report the facile synthesis of graphene oxide–gold (GO–Au) nanocomposites and their use as adsorbents for the removal of toxic industrial dyes from water and as catalysts for the individual and simultaneous reduction of a dye and a nitro compound in aqueous medium. GO sheets were prepared using a modified Hummers method while Au nanoparticles were integrated on GO sheets by reducing Au(iii) ions on the surfaces of GO sheets using sodium citrate as a reducing agent. The prepared composite was characterized with field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), elemental dispersive X-ray analysis (EDX), X-ray diffraction (XRD), Fourier transform infra-red (FT-IR) spectroscopy and thermal gravimetric analysis (TGA). The GO–Au nanocomposite demonstrated efficient adsorption capacities and recyclability for malachite green (MG) and ethyl violet (EV) dyes. The effects of various experimental parameters including temperature, pH, contact time, and adsorbent dose were studied. From the simulation of experimental data with different adsorption isotherms and kinetic models it was found that the adsorption of both the dyes followed the Freundlich adsorption model and a pseudo-second order kinetic model, respectively. Moreover, the adsorbent showed better recyclability for both dyes without any compromise on the removal efficiency. Similarly, the catalytic performance for the reduction of 2-nitroaniline (2-NA) has been investigated in detail by using the prepared nanocomposite as a catalyst. Most importantly, we reported the simultaneous adsorption of cationic and anionic dyes from water using the prepared nanocomposite as well as the simultaneous catalytic reduction of a mixture of EV and 2-NA. So, considering the facile synthesis process and the efficient removal of a variety of dyes and the catalytic performance this work opens up a tremendous opportunity to bring GO based nanocomposites from experimental research to practically applied materials for wastewater treatment. Preparation of graphene oxide–gold (GO–Au) nanocomposites as adsorbents and catalysts for decontamination of water.![]()
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Affiliation(s)
- H. Naeem
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad
- Pakistan
| | - M. Ajmal
- Department of Chemistry
- University of Wah
- Wah Cantt
- Pakistan
| | - S. Muntha
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad
- Pakistan
| | - J. Ambreen
- Department of Physics
- COMSATS Institute of Technology
- Islamabad
- Pakistan
| | - M. Siddiq
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad
- Pakistan
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48
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Yang D, Viitasuo M, Pooch F, Tenhu H, Hietala S. Poly(N-acryloylglycinamide) microgels as nanocatalyst platform. Polym Chem 2018. [DOI: 10.1039/c7py01950e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report the synthesis of thermophilic poly(N-acryloylglycinamide) (PNAGA) microgels that swell in water upon heating and their use as nanocatalyst hosts.
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Affiliation(s)
- Dong Yang
- Department of Chemistry
- University of Helsinki
- FIN-00014
- Finland
| | - Milla Viitasuo
- Department of Chemistry
- University of Helsinki
- FIN-00014
- Finland
| | - Fabian Pooch
- Department of Chemistry
- University of Helsinki
- FIN-00014
- Finland
| | - Heikki Tenhu
- Department of Chemistry
- University of Helsinki
- FIN-00014
- Finland
| | - Sami Hietala
- Department of Chemistry
- University of Helsinki
- FIN-00014
- Finland
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49
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Abay AK, Kuo DH, Chen X, Saragih AD. A new V-doped Bi 2(O,S) 3 oxysulfide catalyst for highly efficient catalytic reduction of 2-nitroaniline and organic dyes. CHEMOSPHERE 2017; 189:21-31. [PMID: 28926785 DOI: 10.1016/j.chemosphere.2017.09.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 08/17/2017] [Accepted: 09/05/2017] [Indexed: 06/07/2023]
Abstract
A new type of convenient, and environmentally friendly, Vanadium (V)-doped Bi2(O,S)3 oxysulfide catalyst with different V contents was successfully synthesized via a simple and facile method. The obtained V-doped Bi2(O,S)3 solid solution catalysts were fully characterized by conventional methods. The catalytic performance of the samples was tested by using the reduction of 2-nitroaniline (2-NA) in aqueous solution. The reduction/decolorization of methylene blue (MB) and rhodamine B (RhB) was also chosen to evaluate the universality of catalysts. It was observed that the introduction of V can improve the catalytic performance, and 20%V-Bi2(O,S)3 was found to be the optimal V doping concentration for the reduction of 2-NA, MB, and RhB dyes. For comparative purposes, a related V-free Bi2(O, S)3 oxysulfide material was synthesized and tested as the catalyst. The superior activity of V-doped Bi2(O,S)3 over pure Bi2(O,S)3 was ascribed mainly to an increase in active sites of the material and also due to the presence of synergistic effects. The presence of V5+ as found from XPS analysis may interact with Bi atoms and enhancing the catalytic activity of the sample. In the catalytic reduction of 2-NA, MB and RhB, the obtained V-doped Bi2(O,S)3 oxysulfide catalyst exhibited excellent catalytic activity as compared with other reported catalysts. Furthermore this highly efficient, low-cost and easily reusable V-doped Bi2(O,S)3 catalyst is anticipated to be of great potential in catalysis in the future.
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Affiliation(s)
- Angaw Kelemework Abay
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan
| | - Dong-Hau Kuo
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan.
| | - Xiaoyun Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan
| | - Albert Daniel Saragih
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan
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50
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Yilmaz E, Soylak M. Facile and green solvothermal synthesis of palladium nanoparticle-nanodiamond-graphene oxide material with improved bifunctional catalytic properties. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1185-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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