|
| Preparation and Properties of Oxidized Modified Activated Carbon Fiber Adsorbent |
| Received:June 14, 2023 Revised:August 22, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.10.017 |
| KeyWord:H2O2 activated carbon fiber SO2 NOx adsorption humid and hot marine climate |
| Author | Institution |
| YANG Huan |
Southwest Institute of Technology and Engineering, Chongqing , China |
| YANG Sen |
Southwest Institute of Technology and Engineering, Chongqing , China |
| SHEN Zhan |
Southwest Institute of Technology and Engineering, Chongqing , China |
| DAI Wen-jun |
Southwest Institute of Technology and Engineering, Chongqing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to prepare SO2 and NOx corrosive atmosphere adsorption materials by oxidation modification with different concentrations of hydrogen peroxide solution. The effects of hydrogen peroxide modification on the pore structure, surface physicochemical properties, and adsorption performance of activated carbon fibers were studied by characterization methods such as infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The protective packaging containing adsorption materials was stored in a humid and hot marine environment to verify the effectiveness of corrosive atmosphere control. There were no significant changes in the surface functional groups of oxidized activated carbon fiber. With the increase of hydrogen peroxide concentration, the specific surface area firstly decreased and then increased. After modification, the active site on the surface of activated carbon fiber increased and the corresponding adsorption performance significantly increased. The saturated adsorption capacity of 30% hydrogen peroxide modified activated carbon fiber for SO2, NO2, and NO was 100 mg/g, 153 mg/g, and 128 mg/g respectively, which was 67%, 180%, and 137% higher than that before modification. The concentration of corrosive atmosphere inside the protective packaging with adsorption materials was almost zero within 3 months. Hydrogen peroxide modified activated carbon fiber has good adsorption performance in corrosive atmosphere, and has good application prospects in long-term storage microenvironment. |
| Close |
|
|
|