Production and performance of physically activated carbon from Bambusa vulgaris
Activated carbon (AC) was produced from Bambusa vulgaris to evaluate its potential of methylene blue dye (MB) adsorption. AC was prepared by direct physical activation, using the water vapor as activating agent. It was characterized considering the gravimetric yield of AC, the pH point of zero charg...
| Authors: | , , , , , |
|---|---|
| Format: | article |
| Status: | Published version |
| Publication Date: | 2019 |
| Country: | Brasil |
| Institution: | Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
| Repository: | Pesquisa Florestal Brasileira (Online) |
| Language: | Portuguese |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/1668 |
| Online Access: | https://pfb.sede.embrapa.br/pfb/article/view/1668 |
| Access Level: | Open access |
| Keyword: | Adsorbents Bamboo Resource management Adsorventes Bambu Gestão de recursos |
| Summary: | Activated carbon (AC) was produced from Bambusa vulgaris to evaluate its potential of methylene blue dye (MB) adsorption. AC was prepared by direct physical activation, using the water vapor as activating agent. It was characterized considering the gravimetric yield of AC, the pH point of zero charge, Boehm titration method, surface area, volume and pore diameter analysis and superficial morphology. The application of AC was performed with kinetic studies and adsorption isotherms by the Langmuir and Freundlich isotherm models. The material produced presented surface area of 684.69 m2 g-1, pH point of zero chargeof 7.32 and predominance of acidic groups on their surface. By the micrographs analysis it was possible to verify the development of the material porosity due to activation. The maximum adsorption capacity for the MB dye was 301.07 mg g-1 the Langmuir model presented the best adjustment. The AC obtained from Bambusa vulgaris presented excellent texture and adsorption properties are it was very efficient in MB dye adsorption. |
|---|