TY  - JOUR
AV  - none
SP  - 1
TI  - Activation of rubber-seed shell waste by malic acid as potential CO2 removal: Isotherm and kinetics studies
N1  - cited By 15
SN  - 19961944
PB  - MDPI AG
EP  - 20
KW  - Activation energy; Adsorption; Agricultural robots; Agricultural wastes; Rubber; Rubber industry; Seed
KW  -  Correlation coefficient; Environmental systems; Kinetics studies; Physical adsorption; Pseudo second order; Pseudo-first-order; Rubber seed shell; Volumetric approach
KW  -  Carbon dioxide
ID  - scholars12560
N2  - Carbon dioxide (CO2) has been deemed a significant contributor to the climate crisis and has an impact on environmental systems. Adsorption is widely used among other technologies for carbon capture because of its many benefits. As a starting material for the production of activated carbon (AC) by chemical activation using malic acid due to its biodegradable and non-toxic properties, rubber seed shell (RSS) was used as agricultural waste from rubber farming. Sample A6, which was carbonized for 120 min at a temperature of 600�C and impregnated at a ratio of 1:2, was identified to achieve the highest surface area of 938.61 m2 /g with micropore diameter of 1.368 nm, respectively. Using the fixed volumetric approach measured at 25, 50, and 100�C, the maximum CO2 adsorption capability reported is 59.73 cm3 /g of adsorbent. Using the pseudo-first order of Lagergren, the pseudo-second order and the Elovich model, experimental data is modeled. It appears that, based on the correlation coefficient, the pseudo-first order model is aligned with the experimental findings. Furthermore, the activation energy of under 40 kJ/mol indicated a physical adsorption occurs, indicating that the RSS chemically activated with malic acid is a fascinating source of CO2 removal requirements. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
IS  - 21
Y1  - 2020///
VL  - 13
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095725926&doi=10.3390%2fma13214970&partnerID=40&md5=79bfc6b16ec23434ab8d23c9b1d57c80
JF  - Materials
A1  - Borhan, A.
A1  - Yusuf, S.
ER  -