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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ma, Yuhui Wang, Qunhui Sun, Xiaohong Wang, Xiaoqiang |
| Copyright Year | 2014 |
| Abstract | A novel magnetic biochar was obtained via pyrolysis of Fe(NO$_{3}$)$_{3}$-impregnated spent shiitake substrate (SSS). The product was characterized by X-ray diffraction (XRD), vibrating sample magnetometer (VSM), N$_{2}$-adsorption, scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) analysis. The pyrolysis process was investigated by thermogravimetric analysis (TGA) and XRD, and the pyrolysis kinetic was analyzed via Coats-Redfern method. Experimental results demonstrated that the magnetic FeO·Fe$_{2}$O$_{3}$ crystals and porous char structure were effectively formed via pyrolysis, and the magnetic biochar had a saturation magnetization value of 20.83 emu/g. The product had a surface area of 177 m$^{2}$/g and a total pore volume of 0.188 cm$^{3}$/g, respectively, and it consisted basically of micropores with diameter of 1.5 nm and mesopores with diameter between 2 and 10 nm. Moreover, Fe can decrease the thermal stability of SSS, and the magnetic crystals were mainly formed between the temperature region of 420 and 530 °C. In addition, the activation energy needed to break down the structure of SSS was lowered by 12.12 kJ/mol with the presence of Fe. |
| Starting Page | 339 |
| Ending Page | 346 |
| Page Count | 8 |
| File Format | |
| ISSN | 21906815 |
| Journal | Biomass Conversion and Biorefinery |
| Volume Number | 5 |
| Issue Number | 4 |
| e-ISSN | 21906823 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2014-09-13 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Magnetic biochar Spent shiitake substrate Characterization Pyrolysis study Renewable and Green Energy Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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