Possible use of waste from marcasite jewelry industry as iron pyrite source incorporated with titanium dioxide for photodegradation of lignin under a halogen tungsten lamp
| Autor: | Thanakorn Wasanapiarnpong, Charusporn Mongkolkachit, Nithiwach Nawaukkaratharnant, Pornapa Sujaridworakun |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences law.invention chemistry.chemical_compound law Marcasite General Materials Science Calcination Photodegradation Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences chemistry Chemical engineering Wastewater Mechanics of Materials Halogen Titanium dioxide Photocatalysis engineering Pyrite 0210 nano-technology |
| Zdroj: | Materials Letters. 271:127778 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2020.127778 |
| Popis: | This paper observes the possibility of utilization of the marcasite waste (MW) from jewelry industry as pyrite FeS2 source for preparing the pyrite FeS2/titanium dioxide (TiO2) photocatalyst composite powder with simple method. The photocatalyst composite powder was fabricated by mixing the washed and milled MW with commercial TiO2 in ethanol and calcining at 300 °C for 4 h under low oxygen atmosphere. The particle was core–shell structure constructed of TiO2 shell and pyrite FeS2 core. Photocatalytic activity of the prepared powder, investigated by lignin degradation under irradiation by a halogen tungsten lamp, was higher than that of the commercial TiO2. This work provides an opportunity of waste recycling for removing organic matter from wastewater. |
| Databáze: | OpenAIRE |
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