| Title |
Efficient toluene adsorption/desorption on biochar derived from in situ acid-treated sugarcane bagasse |
| ID_Doc |
29482 |
| Authors |
Qu, Y; Xu, L; Chen, Y; Sun, SK; Wang, Y; Guo, LM |
| Title |
Efficient toluene adsorption/desorption on biochar derived from in situ acid-treated sugarcane bagasse |
| Year |
2021 |
| Published |
Environmental Science And Pollution Research, 28.0, 44 |
| DOI |
10.1007/s11356-021-15128-2 |
| Abstract |
Carbon-based materials with great adsorption performance are of importance to meet the needs of industrial gas adsorption. Having massive agricultural wastes of sugarcane bagasse, China could use this waste into wealth. However, the comprehensive utilization of sugarcane bagasse as precursor for biochar that can be used as adsorbent has not been extensively explored. In this study, a series of in situ sulfuric acid-modified biochar was prepared by hydrothermal carbonization process. The prepared biochar (SBAC-7) has a combination of two main advantages that are high microporosity (micropore surface area = 1106 m(2)/g) and being rich in S-containing functional groups on the surface. In particular, SBAC-7 showed an excellent adsorption capacity of toluene (771.1 mg/g) at 30 degrees C, which is nearly 3 times as high as that of the commercial activated carbons. Meanwhile, it showed great stability and cyclic regeneration performance with five toluene adsorption-desorption test cycles. This study provides a high-performance biochar for the adsorption-desorption cycle in practical engineering applications, and would contribute to the sustainable "sugarcane production-bagasse utilization" circular economy. |
| Author Keywords |
Hydrochar; VOCs; Activated carbons; Hydrothermal carbonization; Sulfuric acid |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000668855600013 |
| WoS Category |
Environmental Sciences |
| Research Area |
Environmental Sciences & Ecology |
| PDF |
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