In situ monitoring of water adsorption in active carbon using an oblique-incidence optical reflectance difference method | Zendy

Honglei Zhan | Zendy; Kun Zhao | Zendy; Hui Lu | Zendy; Jing Zhu | Zendy; Kuijuan Jin | Zendy; Ge Yang | Zendy; X. H. Chen | Zendy

Open Access

In situ monitoring of water adsorption in active carbon using an oblique-incidence optical reflectance difference method

Author(s) -

Honglei Zhan,

Kun Zhao,

Hui Lu,

Jing Zhu,

Kuijuan Jin,

Ge Yang,

X. H. Chen

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4997326

Subject(s) - adsorption , in situ , materials science , reflectivity , dielectric , polarization (electrochemistry) , permittivity , active carbon , carbon fibers , molecule , analytical chemistry (journal) , optics , optoelectronics , chemistry , environmental science , composite material , chromatography , organic chemistry , physics , environmental protection , composite number

The adsorption of water molecules in active carbon in normal condition can be monitored in situ with an oblique-incidence polarization-modulated optical reflectance difference technique. The optical response cannot only characterize the time length of adsorption, but reveal the tendency of dielectric properties of active carbon during the adsorption process. Therefore, the whole adsorption can be described by the permittivity obtained by OIRD measurement. Such a technique is also effective under high ambient pressure and temperature because of the optical detection, indicating that the precise measurement carried with this technique can help in building adsorption theory system in some different conditions

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