Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles Loaded on Nanoclay
Dyes are one of the major environmental pollutants throughout the world, leading to pollution and numerous diseases. Though several techniques have been applied for the remediation of dyes, most of them are ineffective. The authors developed a halloysite clay/zinc oxide nanocomposite (HC/ZnONC) via...
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MDPI AG
2023-04-01
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| Online Access: | https://www.mdpi.com/2073-4441/15/7/1427 |
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| author | Nisha Choudhary Virendra Kumar Yadav Huma Ali Daoud Ali Bader O. Almutairi Simona Cavalu Ashish Patel |
| author_facet | Nisha Choudhary Virendra Kumar Yadav Huma Ali Daoud Ali Bader O. Almutairi Simona Cavalu Ashish Patel |
| author_sort | Nisha Choudhary |
| collection | DOAJ |
| description | Dyes are one of the major environmental pollutants throughout the world, leading to pollution and numerous diseases. Though several techniques have been applied for the remediation of dyes, most of them are ineffective. The authors developed a halloysite clay/zinc oxide nanocomposite (HC/ZnONC) via a chemical route in the present study. The nanocomposite and its constituents, i.e., raw halloysite clay (HC) and zinc oxide nanoparticles (ZnONPs) (synthesized using the same chemical method) were analyzed for their detailed properties by sophisticated instruments. The field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM) analysis showed spherical-shaped ZnONPs with an average size of 54.9 nm and tube-like shapes of HC with a diameter ranging from 40–200 nm and a length at the micron scale, while the nanocomposite had incorporated ZnONPs in their tube-like structures. Ultraviolet-Diffuse Reflectance Spectroscopic (UV-DRS) study revealed the photocatalytic ability of the nanocomposite with a band of 3.08 eV. A high surface area of 60.25 m<sup>2</sup>/g and the microporous and mesoporous nature of the nanocomposite were confirmed by the Brunauer–Emmet–Teller (BET) surface area analyzer. Finally, the developed nanocomposite was used for the remediation of methylene blue from the aqueous solutions, and the efficiency of removal varied from 90 to 97%. |
| first_indexed | 2024-03-09T10:58:02Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T10:58:02Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-438011d924064fbd94e9ad2d548752ea2023-12-01T01:26:54ZengMDPI AGWater2073-44412023-04-01157142710.3390/w15071427Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles Loaded on NanoclayNisha Choudhary0Virendra Kumar Yadav1Huma Ali2Daoud Ali3Bader O. Almutairi4Simona Cavalu5Ashish Patel6Department of Life Sciences, Hemchandracharya North Gujarat University, Patan 384265, Gujarat, IndiaDepartment of Life Sciences, Hemchandracharya North Gujarat University, Patan 384265, Gujarat, IndiaDepartment of Chemistry, Maulana Azad National Institute of Technology, Bhopal 462003, Madhya Pradesh, IndiaDepartment of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi ArabiaDepartment of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi ArabiaFaculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, RomaniaDepartment of Life Sciences, Hemchandracharya North Gujarat University, Patan 384265, Gujarat, IndiaDyes are one of the major environmental pollutants throughout the world, leading to pollution and numerous diseases. Though several techniques have been applied for the remediation of dyes, most of them are ineffective. The authors developed a halloysite clay/zinc oxide nanocomposite (HC/ZnONC) via a chemical route in the present study. The nanocomposite and its constituents, i.e., raw halloysite clay (HC) and zinc oxide nanoparticles (ZnONPs) (synthesized using the same chemical method) were analyzed for their detailed properties by sophisticated instruments. The field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM) analysis showed spherical-shaped ZnONPs with an average size of 54.9 nm and tube-like shapes of HC with a diameter ranging from 40–200 nm and a length at the micron scale, while the nanocomposite had incorporated ZnONPs in their tube-like structures. Ultraviolet-Diffuse Reflectance Spectroscopic (UV-DRS) study revealed the photocatalytic ability of the nanocomposite with a band of 3.08 eV. A high surface area of 60.25 m<sup>2</sup>/g and the microporous and mesoporous nature of the nanocomposite were confirmed by the Brunauer–Emmet–Teller (BET) surface area analyzer. Finally, the developed nanocomposite was used for the remediation of methylene blue from the aqueous solutions, and the efficiency of removal varied from 90 to 97%.https://www.mdpi.com/2073-4441/15/7/1427claymethylene bluenanocompositesamorphouscrystallization |
| spellingShingle | Nisha Choudhary Virendra Kumar Yadav Huma Ali Daoud Ali Bader O. Almutairi Simona Cavalu Ashish Patel Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles Loaded on Nanoclay Water clay methylene blue nanocomposites amorphous crystallization |
| title | Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles Loaded on Nanoclay |
| title_full | Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles Loaded on Nanoclay |
| title_fullStr | Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles Loaded on Nanoclay |
| title_full_unstemmed | Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles Loaded on Nanoclay |
| title_short | Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles Loaded on Nanoclay |
| title_sort | remediation of methylene blue dye from wastewater by using zinc oxide nanoparticles loaded on nanoclay |
| topic | clay methylene blue nanocomposites amorphous crystallization |
| url | https://www.mdpi.com/2073-4441/15/7/1427 |
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