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Wanjari PJ, Saha N, Dubey G, Bharatam PV. Metal-free methods for the generation of benzimidazoles and 2-aminobenzimidazoles. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hussain T, Hussain M, Hussain S, Kaseem M. Microwave-assisted synthesis of NiTe2 photocatalyst as a facile and scalable approach for energy-efficient photocatalysis and detoxification of harmful organic dyes. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Karuppasamy K, Santhoshkumar P, Hussain T, Vikraman D, Yim CJ, Hussain S, Shanmugam P, Alfantazi A, Manickam S, Kim HS. Influence of selenium precursors on the formation of iron selenide nanostructures (FeSe 2): Efficient Electro-Fenton catalysts for detoxification of harmful organic dyestuffs. CHEMOSPHERE 2021; 272:129639. [PMID: 33482511 DOI: 10.1016/j.chemosphere.2021.129639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 12/31/2020] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
In this investigation, a sequences of iron diselenide (FeSe2) nanomaterials as the competent and highly stable catalysts for the detoxification of aqueous organic dye pollutants such as Congo red (CR) and methylene blue (MB) through Electro-Fenton (EF) process using hydrogen peroxide as an initiator have been studied. The utilized selenium precursors include selenium metal, selenious acid (H2SeO3) and selenium dioxide (SeO2) which were employed for the synthesis of FeSe2 catalysts through a wet chemical strategy. It has been observed that based on the employed precursors, different morphologies ranges of the FeSe2 catalysts were obtained: microgranualr particles to nano-stick to nanoflakes. The crystalline nature and phase purity of the obtained FeSe2 catalysts were determined through XRD, Raman and HR-TEM analyses which confirmed their orthorhombic ferroselite structure. Among the prepared FeSe2 catalysts, FS-2 (using H2SeO3) displayed better porous properties as compared to other catalysts and achieved the highest surface area of 74.68 m2g-1. The narrow bandgap (0.88 eV) and fast conversion of Fe2+/Fe3+ cycle of FeSe2 led CR and MB degradation of 93.3% and 90.4%, respectively. The outcome of this study demonstrates improved catalytic properties of FeSe2 nanostructures for the efficient detoxification of hazardous and toxic effluents.
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Affiliation(s)
- K Karuppasamy
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - P Santhoshkumar
- Millimeter-Wave Innovation Technology Research Center (MINT), Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Tassawar Hussain
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, 05006, Republic of Korea
| | - Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Chang-Joo Yim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Sajjad Hussain
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, 05006, Republic of Korea
| | - P Shanmugam
- Department of Chemistry, St. Joseph University, Dimapur, Nagaland 797115, India
| | - Akram Alfantazi
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, 127788, United Arab Emirates
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei Darussalam
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea.
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