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- W589722443 abstract "A study on the adsorption of activated carbon on oil palm culture media wascarried out in two main parts, the adsorption of plant growth regulatorsI-naphthaleneacetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) androot initiation of oil palm tissue culture. Four commercially available activatedcarbons, namely ACl, AC2, AC3 and AC4 were used in this study.The adsorption of NAA and 2,4-D by activated carbons were determinedusing UV Nis spectrophotometer. The adsorption of NAA and 2,4-D at differentconcentrations increased rapidly at the initial stage and then followed by a sloweruptake until the equilibrium is established in 40 and 30 minutes. respectively. Themaximum uptake was achieved at higher concentration for both of the plant growthregulators. The higher maximum uptake was obtained for higher surface area of theactivated carbons.The adsorption isotherms have been obtained at various concentrations. Theadsorption isotherm for NAA on AC3 was better fitted to Langmuir equationcompared to other activated carbons. On the other hand, Freundlich equation wasslightly better fitted to the adsorption of NAA for other activated carbon samples. Itwas found that the adsorption capacity of NAA on AC3 was higher compared to theother activated carbons. Adsorption isotherm of 2,4-D showed that the Langmuirequation isotherm was better fitted to the experimental data for AC 1 and AC3, butAC2 and AC4 are better fitted to the Freundlich equation. It was observed that AC4showed the highest adsorption capacity. The n value of AC4 indicated that AC4 wasthe effective adsorbent for 2,4-D.The ability for root initiation of shoots from the oil palm explants was studiedon different treatments. The results indicate that there is no significant differencebetween the clones but the different samples of activated carbon added into therooting medium showed a highly significant difference. Addition of activated carbonin the rooting medium improved the overall rooting capacity." @default.
- W589722443 created "2016-06-24" @default.
- W589722443 creator A5056611531 @default.
- W589722443 date "2002-03-01" @default.
- W589722443 modified "2023-09-27" @default.
- W589722443 title "Adsorption Studies of I-Naphthaleneacetic Acid and 2,4-Dichlorophenoxyacetic Acid on Activated Carbon in Aqueous Solution and Oil Palm Tissue Culture Media" @default.
- W589722443 hasPublicationYear "2002" @default.
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