Effect of Polystyrene Latex Addition on Size and Pore Volume of Porous Calcium Oxide Particles Prepared by Spray-Pyrolysis Method and Its Ability for SO2 Retention

Journal of Engineering and Technological Sciences

Mikrajuddin Abdullah¹  Ricky Dwi Septianto²  Ferry Iskandar³ 

[1] D Group, Korea Institute of Industrial Technology (KITECH),89 Yangdaegiro-gil, Ipjang-myeon, Cheonan, Chungnam 31056,;Physics of Electronic Materials Division, Department of PhysicsFaculty of Mathematics and Natural Sciences, Insitut Teknologi BandungJalan Ganesha 10, Bandung 40132;Thermochemical Energy System R&

关键词: CaO;    porous;    polystyrene;    spray-pyrolysis;    SO2;   

DOI  :  10.5614/j.eng.technol.sci.2018.50.2.6

学科分类：工程和技术（综合）

来源: Institute for Research and Community Services ITB

【 摘 要 】

In this study, the effects of polystyrene (PS) latex addition on the particle morphology and the pore content of calcium oxide (CaO) were investigated. The CaO particles were prepared using an ultrasonic nebulizer-assisted spray-pyrolysis method with variation of the PS/Ca(NO 3 ) 2 ·4H 2 O mass ratio in the precursor. Good crystallinity of CaO was obtained at 825°C of synthesis temperature under 2 l/min of nitrogen gas flow, which was confirmed by Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). According to scanning electron microscope (SEM) characterization, the CaO particles synthesized with 0 and 25 wt% PS addition had an almost spherical shape with an average size of 1.58 and 1.48 µm, respectively. In addition, macropores were formed in the CaO particles prepared with 25 wt% PS addition that had an average pore diameter of 583.26 nm. Meanwhile, the CaO particles prepared with 75 wt% PS addition had a random shape and an average size of 1.41 µm. The mesopore content was investigated by Barret-Joyner-Halenda (BJH) analysis, which showed improvement of the pore size from 3.45 nm to 5.42 nm for 0 and 25 wt% PS addition, respectively, which is proportional to the pore volume, pore surface area, and the capacity of SO 2retention.

【 授权许可】

CC BY