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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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Hyder A, Memon SS, Buledi JA, Memon S, Memon ZUA, Rajpar DB, Sirajuddin. A highly selective sensor based on p-tetranitrocalix[4]arene-capped copper nanoparticles for colorimetric and bare-eye detection of cyclophosphamide. ANAL SCI 2023; 39:1981-1992. [PMID: 37642921 DOI: 10.1007/s44211-023-00408-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 08/09/2023] [Indexed: 08/31/2023]
Abstract
In the current study, one of the outstanding facile and simple protocols is proposed for the synthesis of copper nanoparticles (CuNPs) using NaBH4 as a reducing agent and p-tetranitrocalix[4]arene (p-TNC4) as a capping agent. According to our knowledge, no such technique is available in the literature for colorimetric detection of cyclophosphamide (CPA) using CuNPs at the trace level. The well-organized synthesis was confirmed via advanced spectroscopic techniques. The crystallite size, shape, phase purity, and morphological characteristics were determined via XRD, AFM, FT-IR, and UV-visible spectroscopy. At the optimal conditions for CPA detection, the sensor reveals an excellent sensitivity, selectivity, as well as stability with LOD and LOQ 20 nM and 60 nM, respectively. However, the proposed sensor showed excellent potential and selectivity for the sensing of colorimetric detection of CPA that can be effectively applied to real blood serum samples. The proposed approach is better suited as compared to reported protocols in terms of handling, simplicity, economic, energy consumption, reproducibility, and excellent performance in a very short time.
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Affiliation(s)
- Ali Hyder
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan.
| | - Safia Sanam Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Jamil Ahmed Buledi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Shahabuddin Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Zafar-Ul-Abdin Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Dhani Bux Rajpar
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Sirajuddin
- International Center for Chemical and Biological Science, HEJ Research Institute of Chemistry, University of Karachi, Karachi, 75270, Pakistan
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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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Chibac-Scutaru AL, Podasca V, Dascalu IA, Melinte V. Exploring the Influence of Synthesis Parameters on the Optical Properties for Various CeO 2 NPs. NANOMATERIALS 2022; 12:nano12091402. [PMID: 35564111 PMCID: PMC9100359 DOI: 10.3390/nano12091402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/14/2022] [Accepted: 04/17/2022] [Indexed: 02/01/2023]
Abstract
Cerium oxide (CeO2) nanoparticles were synthesized with a chemical precipitation method in different experimental conditions using cerium nitrate hexahydrate (Ce(NO3)3·6H2O) as a precursor, modifying the solution pH, the reaction time, and Co atoms as dopants, in order to tune the band gap energy values of the prepared samples. The physical characteristics of the synthesized ceria nanoparticles were evaluated by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV–Vis analyses and photoluminescence measurements. XRD data revealed a pure cubic fluorite structure of CeO2 NPs, the estimation of crystallite sizes by Scherrer’s formula indicates the formation of crystals with dimensions between 11.24 and 21.65 nm. All samples contain nearly spherical CeO2 nanoparticles, as well as cubic, rhomboidal, triangular, or polyhedral nanoparticles that can be identified by TEM images. The optical investigation of CeO2 samples revealed that the band gap energy values are between 3.18 eV and 2.85 eV, and, after doping with Co atoms, the Eg of samples decreased to about 2.0 eV. In this study, we managed to obtain CeO2 NPs with Eg under 3.0 eV by only modifying the synthesis parameters. In addition, by doping with Co ions, the band gap energy value was lowered to 2.0 eV. This aspect leads to promising results that provide an encouraging approach for future photocatalytic investigations.
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Affiliation(s)
- Andreea L. Chibac-Scutaru
- Polyaddition and Photochemistry Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (A.L.C.-S.); (V.P.)
| | - Viorica Podasca
- Polyaddition and Photochemistry Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (A.L.C.-S.); (V.P.)
| | - Ioan A. Dascalu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers (IntelCentru), Petru Poni Institute of Macromolecular Chemistry, 41A GrigoreGhicaVoda Alley, 700487 Iasi, Romania;
| | - Violeta Melinte
- Polyaddition and Photochemistry Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (A.L.C.-S.); (V.P.)
- Correspondence:
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Keerthana M, Pushpa Malini T, Sangavi R, Arockia Selvi JP, Arthanareeswari M. Effect of Europium, Yttrium and Lutetium Doping on the Photocatalytic Property of CeO
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Nanoparticles in the Reduction of p‐nitrophenol under Visible Light. ChemistrySelect 2022. [DOI: 10.1002/slct.202103610] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Madhusuthanan Keerthana
- Department of Chemistry SRM Institute of Science and Technology Kattankulathur 603 203 Tamil Nadu India
| | | | - Ravi Sangavi
- Department of Chemistry SRM Institute of Science and Technology Kattankulathur 603 203 Tamil Nadu India
| | - John Peter Arockia Selvi
- Department of Chemistry SRM Institute of Science and Technology Kattankulathur 603 203 Tamil Nadu India
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Wang W, Dai G, Yang H, Liu X, Chen X, Meng Z, He Q. Highly efficient catalytic reduction of 4-nitrophenol and organic dyes by ultrafine palladium nanoparticles anchored on CeO 2 nanorods. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:8242-8252. [PMID: 34482459 DOI: 10.1007/s11356-021-16276-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Uniformly dispersed Pd nanoparticles on certain supports exhibit exceptional catalytic performance toward various environmental applications. In this work, ultrafine Pd nanoparticles anchored on CeO2 nanorods were synthesized via an absorption-in situ reduction method. The activity of the CeO2/Pd nanocomposites was systematically investigated toward reduction of 4-nitrophenol (4-NP) and organic dyes including methyl blue, rhodamine B, methyl orange, and Congo red. The results indicated that the CeO2/Pd nanocomposites with different weight ratios of Pd nanoparticles (10.23 wt%, 11.01 wt%, and 14.27 wt%) can almost completely reduce 4-NP with a rate constant of 3.31×10-1, 3.22×10-1, and 2.23×10-1 min-1. Besides, the 10.23 wt% CeO2/Pd nanocomposites exhibit remarkable enhanced catalytic activity toward reduction of organic dyes. The catalysts display ideal stability after being used for three times for the reduction of 4-NP. We believe that our strategy demonstrated here offers insights into the design and fabrication of novel Pd-based nanocomposites for various heterogeneous catalysis applications.
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Affiliation(s)
- Wenxia Wang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China
| | - Guodong Dai
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China
| | - Haibin Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xiaofeng Liu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xi Chen
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China
| | - Zhenbang Meng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China
| | - Qi He
- School of Public Health, Southern Medical University, Guangzhou, 510515, China.
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Heterogeneous kinetics of CuO nanoflakes in simultaneous decolorization of Eosin Y and Rhodamine B in aqueous media. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01685-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Pato AH, Balouch A, Talpur FN, Panah P, Mahar AM, Jagirani MS, Kumar S, Sanam S. Fabrication of TiO 2@ITO-grown nanocatalyst as efficient applicant for catalytic reduction of Eosin Y from aqueous media. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:947-959. [PMID: 32829430 DOI: 10.1007/s11356-020-10548-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 08/16/2020] [Indexed: 06/11/2023]
Abstract
Innovative titania nanostructures were synthesized via efficient and prolific liquid phase deposition route and efficiently utilized for catalytic degradation of Eosin Y. The as-synthesized TiO2@ITO nanostructures were subjected to various characterization tactics that confirmed the efficacious fabrication of nanostructures. The minute size of particles around 5-6 nm having anatase crystalline phase and concrete like morphology was greatly revealed by atomic force microscopy, XRD, and SEM, respectively. The resulting nanoconcretes were employed for photocatalytic degradation of Eosin Y dye in aqueous medium. The effects of various experimental parameters such as the reducing agent concentration, sunlight, time, catalytic dose, and microwave power were investigated for the potential photocatalytic degradation. The proposed TiO2@ITO nanostructures showed potential photocatalytic efficiency then previously reported nanomaterial for degradation of toxic Eosin Y dye; it shows approximately 99.8% dye degraded within 50-60 s using only 100 μg of nanocatalyst under optimized conditions. Owing to minute size, topography and electron-hole pair abilities TiO2@ITO nanostructures suggest an exceptional icon at the commercial level for successful degradation of toxic pollutants.Graphical abstract.
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Affiliation(s)
- Abdul Hameed Pato
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
| | - Aamna Balouch
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
- Faculty of Science and Letters, Department of Physics Engineering, Istanbul Technical University, Maslak, 34467, Sarıyer/Istanbul, Turkey.
| | - Farah Naz Talpur
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
| | - Pirah Panah
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
| | - Ali Muhammad Mahar
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
| | - Muhammad Saqaf Jagirani
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
| | - Sagar Kumar
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
| | - Safia Sanam
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
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