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首页> 外文会议>Wastewater and Biosolids Treatment and Reuse: Bridging Modeling and Experimental Studies 2014 >Equilibrium, kinetic and thermodynamic study of adsorption of rhodamine B from aqueous solution by activated carbon from Peltophorum Pterocarpum leaf
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Equilibrium, kinetic and thermodynamic study of adsorption of rhodamine B from aqueous solution by activated carbon from Peltophorum Pterocarpum leaf

机译：蕨果叶活性炭吸附水溶液中若丹明B的平衡，动力学和热力学研究

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1. The Langmuir monolayer adsorption capacity of RB dye - PAC system was estimated as 3.551 × 10~(-4) mol/g. 2. The mean free energy of sorption (E) value was found to be 24.933kJ/mol, indicating that chemisorption might be the major mode in the adsorption of RB. 3. The adsorption kinetics of RB dye with PAC followed the pseudo second order kinetics 4. The negative values of ΔG° and the positive value of ΔH° indicated the process is spontaneous and endothermic in nature. It is due to high positive value of ΔS° and entropy driven process. 5. The desorption studies suggest that 79% of the dyes can be recovered from the adsorbent. 6. The PAC effectively removes Rhodamine B from aqueous solution. Also the PAC can be efficiently used for the adsorptive removal of dyes from real effluents from the dye industries.
机译：1. RB染料-PAC体系的Langmuir单层吸附能力估计为3.551×10〜（-4）mol / g。 2.吸附的平均自由能（E）值为24.933kJ / mol，表明化学吸附可能是RB吸附的主要方式。 3. RB染料在PAC上的吸附动力学遵循伪二级动力学。4.ΔG°的负值和ΔH°的正值表明该过程是自发的且吸热。这是由于ΔS°的高正值和熵驱动过程所致。 5.解吸研究表明，可以从吸附剂中回收79％的染料。 6. PAC有效地从水溶液中去除了若丹明B。 PAC也可以有效地用于从染料工业的真实废水中吸附去除染料。

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