Acid Blue 25 adsorption on base treated Shorea dasyphylla sawdust:Kinetic,isotherm,thermodynamic and spectroscopic analysis

作     者：Megat Ahmad Kamal Megat Hanafiah Wan Saime Wan Ngah Shahira Hilwani Zolkafly Lee Ching Teong Zafri Azran Abdul Majid 

作者机构：Department of ChemistryFaculty of Applied SciencesUniversiti Teknologi MARA School of Chemical SciencesUniversiti Sains Malaysia Kulliyyah of Allied Health SciencesInternational Islamic University Malaysia 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2012年第24卷第2期

页      面：261-268页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：the Universiti Sains Malaysia for the financial support (No. 304/PKIMIA/638056) 

主　　题：Acid Blue 25 adsorption Shorea dasyphylla sawdust spectroscopy thermodynamic 

摘      要：The potential of base treated Shorea dasyphylla（BTSD） sawdust for Acid Blue 25（AB 25） adsorption was investigated in a batch adsorption *** physiochemical parameters such as pH,stirring rate,dosage,concentration,contact time and temperature were *** adsorbent was characterized with Fourier transform infrared spectrophotometer,scanning electron microscope and Brunauer,Emmett and Teller *** optimum conditions for AB 25 adsorption were pH 2,stirring rate 500 r/min,adsorbent dosage 0.10 g and contact time 60 *** pseudo second-order model showed the best conformity to the kinetic *** equilibrium adsorption of AB 25 was described by Freundlich and Langmuir,with the latter found to agree well with the isotherm *** maximum monolayer adsorption capacity of BTSD was 24.39 mg/g at 300 K,estimated from the Langmuir *** parameters such as Gibbs free energy,enthalpy and entropy were *** was found that AB 25 adsorption was spontaneous and exothermic.