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Adsorption of Acid Red dye from aqueous solution using quaternized chitosan microspheres
Zhang, Runhu1; Hua, Chao2; Ning, Mencui1; Bai, Fang2
2019-03-01
Source PublicationDESALINATION AND WATER TREATMENT
ISSN1944-3994
Volume145Pages:361-368
Abstract

In this study, quaternized chitosan microspheres (QCMS) were prepared and their adsorption performance of Acid Red 18 from aqueous solution was studied. Equilibrium was attained within 120 minutes and maximum removal of 94.06% was achieved. Langmuir and Freundlich isotherm models have been investigated. The maximum capacity obtained from the Langmuir model is 142.15 mg.g(-1). Pseudo-first order and pseudo-second order kinetic models have been used for experimental data. The kinetic process was described by a pseudo-second-order rate equation very well. The calculated thermodynamic parameters (Delta H degrees = -12.67 kJ.mol(-1); Delta G degrees = -4.67 to -5.61 kJ.mol(-1) and Delta S degrees = -24.78 K-1.mol(-1)) showed that the adsorption of Acid Red 18 is feasible, spontaneous and endothermic in nature. The results of the present study indicated that the QCMS could be considered as a potential adsorbent for Acid Red 18 in aqueous solutions.

KeywordAcid Red 18 Quaternized Chitosan Microspheres Adsorption Isotherm Models Kinetics Thermodynamics
DOI10.5004/dwt.2019.23570
Language英语
WOS KeywordFixed-bed Adsorption ; Methylene-blue ; Waste-water ; Azo-dye ; Removal ; Kinetics ; Isotherm ; Thermodynamics ; Copper ; Ions
Funding Projectnational key basic research development plan (973)[2013CB632602]
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
Funding Organizationnational key basic research development plan (973)
WOS IDWOS:000458914500035
PublisherDESALINATION PUBL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28074
Collection中国科学院过程工程研究所
Corresponding AuthorHua, Chao
Affiliation1.Kunming Met Coll, Dept Chem Engn, Kunming 650033, Yunnan, Peoples R China
2.Chinese Acad Sci, CAS Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Runhu,Hua, Chao,Ning, Mencui,et al. Adsorption of Acid Red dye from aqueous solution using quaternized chitosan microspheres[J]. DESALINATION AND WATER TREATMENT,2019,145:361-368.
APA Zhang, Runhu,Hua, Chao,Ning, Mencui,&Bai, Fang.(2019).Adsorption of Acid Red dye from aqueous solution using quaternized chitosan microspheres.DESALINATION AND WATER TREATMENT,145,361-368.
MLA Zhang, Runhu,et al."Adsorption of Acid Red dye from aqueous solution using quaternized chitosan microspheres".DESALINATION AND WATER TREATMENT 145(2019):361-368.
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