Aqueous Mechanical Oxidation of Zn Dust: An Inventive Technique for Bulk Production of ZnO Nanorods
| Autor: | K.B. Babitha, Santhosh Balanand, Abdul Azeez Peer Mohamed, Mathews Jeen Maria, Solaiappan Ananthakumar |
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| Rok vydání: | 2017 |
| Předmět: |
Aqueous solution
Materials science Renewable Energy Sustainability and the Environment General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry Zinc 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Rhodamine 6G chemistry.chemical_compound Crystallinity chemistry Chemical engineering X-ray photoelectron spectroscopy visual_art Photocatalysis visual_art.visual_art_medium Environmental Chemistry Nanorod Ceramic 0210 nano-technology |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 6:143-154 |
| ISSN: | 2168-0485 |
| DOI: | 10.1021/acssuschemeng.7b01966 |
| Popis: | Metal to bulk metal oxide nanoparticles have been successfully processed via a sustainable, facile, and ecofriendly (green) approach, namely, aqueous mechanical-oxidation. Micron-sized zinc (Zn) dust (∼45 μm) was directly wet-milled using ceramic milling media for 72 h, resulting in the production of bulk monocrystalline ZnO nanorods (aspect ratio ∼5.2, hydrodynamic diameter of 315 nm) and voluminous H2 gas by catalyst-free water-splitting reaction. The mill-induced surface oxidation and the chemical purity of the synthesized nano ZnO were carefully studied using the XPS analysis. Other standard analytical tools were also employed to understand the crystallinity, phase purity, morphology, and surface area of the final artifact. The photocatalytic activities of these mechanically grown ZnO nanorods were ascertained from two cationic dye-degradation experiments, using the dyes methylene blue and rhodamine 6G. In a nutshell, the study throws a new insight into a cost-effective, zero-effluent, single-step, an... |
| Databáze: | OpenAIRE |
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