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Your search keyword '"Amini, M. H. M."' showing total 20 results
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20 results on '"Amini, M. H. M."'

3. REMOVAL OF CADMIUM USING ALKALINE-TREATED ACTIVATED CARBON FROM LEUCAENA LEUCOCEPHALA BIOMASS.

Author

IBRAHIM, W. M. H. W., SULAIMAN, N. S., AMINI, M. H. M., KADIR, W. R. A., MOHAMED, M., RAMLE, S. F. M., BILGIN, U., and RAHMAN, W.

Subjects
LEAD tree, ACTIVATED carbon, CADMIUM, HEAVY metals, WATER pollution, CHAR
Abstract

Water contamination that caused by heavy metals is a very common phenomenon in the industrial age. One of the popular way to treat metal contaminated water is by adsorption process using activated carbon as the adsorbent. This paper works on producing activated carbon by chemical means with impregnation ratios of NaOH:char (w/w) was predetermined at 1:1 (ACT1-1), 2:1 (ACT2-1) and 3:1 (ACT3-1) under activation temperature of 700°C. Considering the Leucaena leucocephala is a wildly, easy and fast grown species, with the availability throught the year, it was chosen to be used as the precursor. The properties of these activated carbons and its potential for cadmium removal from aqueus solution was analyzed. It was found that the highest surface area was recorded at 662.76 m²/g. Four parameters were studied which are contact time, the effect of pH, initial concentration of adsorbate and temperature. The equilibrium time was achieved in 40 min treatment at initial concentrations of 30 mg/l. The adsorbent exhibited good sorption potential for cadmium at pH 8.0 and equilibrium temperature of 30°C. Based on the results, this study had proved that activated carbon from Leucaena leucocephala biomass have the good potential to be used for removal of cadmium from wastewater. [ABSTRACT FROM AUTHOR]

Published
2022
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6. Decomposition of TiO2, CuO and CaCO3 for CaCu3Ti4O12 Formation through Solid State Reaction.

Author

Karim, S. A., Sulaiman, M. A., Masri, M. N., Amini, M. H. M., Bakar, M. B. A., Ain, M. F., and Ahmad, Z. A.

Subjects
SOLID state chemistry, TITANIUM dioxide, POWDERS, MICROSTRUCTURE, COPPER oxide
Abstract

Synthesis of CaCu3Ti4O12 (CCTO) through solid state reaction route is a common method used by researchers and industries because this technique offers easier of handlings and only a few parameters involved to obtain single phase of CCTO. More investigations on solid state reaction route can keep optimized this route by considering all synthesis stages started from the raw materials. It is important to identify the formation of phases and morphologies each of process stages to understand factors involved for their changes. The raw powders, TiO2, CuO and CaCO3 had undergone mixing process to produce homogenous mixture, decompose at different calcination temperature and also combination of calcination and sintering altogether. Analyses had conducted to study the crystallinities and microstructures of the powders and pellet samples. FESEM micrographs show that the grains formed at different sized each of the stages and XRD analyses have identified the raw powders of CCTO have decomposed and reacted differently when heat treated from 900°C to 1040°C. [ABSTRACT FROM AUTHOR]

Published
2019
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