Surface Characterization of the Adsorbent Derived from Activated East Kalimantan’s Low Rank Coal (LRC) Yuli Patmawati

Abstract

Adsorption process has several applications today particularly for the treatment of wastewater. Consequently, the creation and enhancement of adsorbent materials is an important subject of research. When a novel adsorbent is offered, adequate material properties is necessary to understand its characteristics, encourage the utilization of it as well as comprehend Its effectiveness in the intended technique. The objective of this inquiry is to figure out the structure and surface area of the adsorbent derived from East Kalimantan’s activated LRC utilizing Brunauer Emmett Teller (BET) analyses. Before conducting BET analysis, the adsorbent is degassed and vacuumed. After that, it gets exposed to N2 gas at constant temperature of 77 Kelvin. From this paper reported an adsorbent derived from East Kalimantan's activated LRC has surface areas of 321.26 m2/g, many micropores with the average pore size of 1.41 nm and 0.23 cm3/g total volume of pore. Furthermore, based upon the isotherms of N2 gas adsorption and desorption, the adsorbent derived from East Kalimantan's activated low rank coal follows a combination of IUPAC types I and IV. It possesses microporous and mesoporous characteristics, as well as monolayer and multilayer adsorption processes. Identifying the surface characteristics of the adsorbent makes it feasible to evaluate the effectiveness of utilizing the adsorbent derived from East Kalimantan’s activated LRC in the adsorption process as compared to different types of adsorbents.