Improving Water Vapor Adsorption Capacity at Low Humidity on Activated Carbon by Introducing Active Functional Groups Through Ozone Activation
-
- CHAIRUNNISA
- Department of Energy and Environmental Engineering, IGSES, Kyushu University
-
- MISIK Frantisek
- Department of Energy and Environmental Engineering, IGSES, Kyushu University
-
- MIYAZAKI Takahiko
- Department of Energy and Environmental Engineering, IGSES, Kyushu University
-
- THU Kyaw
- Department of Energy and Environmental Engineering, IGSES, Kyushu University
-
- MIYAWAKI Jin
- Department of Advanced Device Materials, Institute for Material Chemistry and Engineering, Kyushu University
Search this article
Description
<p>Water vapor adsorption on activated carbon (AC) for dehumidification purposes has gained much attention due to the abundance of benefits provided by AC. The working region limited in high water vapor relative pressure (P/P0) makes this material suitable only for removing water vapor at a highly humid region. In this study, ozone oxidation was conducted to introduce more oxygen-based functional groups on AC to attract more water molecules. Based on surface characterization results, ozone oxidation increases oxygen functional groups such as carboxylic on AC but decreases their pores. The more AC exposed to ozone, the more different properties could be observed. The increment of functional groups enhances the water vapor adsorption uptake at P/P0 ≤ 0.6, shifting the water sorption into lower P/P0.</p>
Journal
-
- Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers
-
Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers 39 (1), 93-, 2022-03-31
Japan Society of Refrigerating and Air Conditioning Engineers
- Tweet
Details 詳細情報について
-
- CRID
- 1390577078290594432
-
- NII Article ID
- 130008149165
-
- NII Book ID
- AA11125910
-
- ISSN
- 2185789X
- 13444905
-
- NDL BIB ID
- 032098542
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL Search
- CiNii Articles
-
- Abstract License Flag
- Disallowed