Adsorptive removal of new methylene blue from water by treated Malus domestica sawdust as a low cost biosorbent - equilibrium, kinetics and thermodynamic studies

doi:10.5004/dwt.2019.24591

	Adsorptive removal of new methylene blue from water by treated Malus domestica sawdust as a low cost biosorbent - equilibrium, kinetics and thermodynamic studies
	Naz, Saira 4; Alam, Sultan 3; Rehan, Kamran 2; Sultana, Sabiha 1
刊名	DESALINATION AND WATER TREATMENT
	2019-10-01
卷号	166 页码:72-82
关键词	New Methylene blue Sawdust Malus domestica Adsorption Kinetics Isotherms Adsorption Thermodynamics
ISSN号	1944-3994
DOI	10.5004/dwt.2019.24591
英文摘要	In this study the adsorption of New Methylene blue (Basic blue 24) on sawdust of Malus domestica was investigated. The sawdust was chemically treated to enhance the adsorption capacity. Adsorption experiments were performed at different temperatures ranging from 20-40 degrees C on both raw and treated sawdust samples. The residual concentration of the dye was determined by UV-Vis spectrophotometric technique. Effect of various reaction parameters like temperature, initial dye concentration, equilibration time and pH was studied. Sawdust was characterized by BET, FTIR, Scanning electron microscopy (SEM), and Energy dispersive spectroscopy (EDS) techniques. Adsorption kinetics was interpreted using intra particle diffusion and Bangham models and both models were found to best describe the sorption of New Methylene blue onto M. domestica. Thermodynamic parameters like Delta E degrees, Delta H degrees, Delta S degrees and Delta G degrees were calculated from the adsorption kinetics data. The data show that the adsorption is an endothermic process. The negative value of entropy shows that the dye molecules take an oriented position on the adsorbent surface. Adsorption data fitted well with Langmuir, Freundlich and Temkin adsorption isotherms. All results clarify that M. domestica sawdust is a useful cheap adsorbent for removing basic dyes.
WOS关键词	AQUEOUS-SOLUTION ; SUGARCANE BAGASSE ; DYE ; BATCH ; BIOSORPTION ; ADSORBENTS ; VIOLET ; ORANGE
WOS研究方向	Engineering ; Water Resources
语种	英语
出版者	DESALINATION PUBL
WOS记录号	WOS:000489318500008
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/21394]
专题	中国科学院武汉物理与数学研究所
通讯作者	Naz, Saira
作者单位	1.Islamia Coll Univ, Dept Chem, Peshawar, Pakistan 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 3.Univ Malakand, Dept Chem, Chakdara, Dir L, Pakistan 4.Univ Peshawar, Inst Chem Sci, Khyber Pakhtunkhwa, Pakistan
推荐引用方式 GB/T 7714	Naz, Saira,Alam, Sultan,Rehan, Kamran,et al. Adsorptive removal of new methylene blue from water by treated Malus domestica sawdust as a low cost biosorbent - equilibrium, kinetics and thermodynamic studies[J]. DESALINATION AND WATER TREATMENT,2019,166:72-82.
APA	Naz, Saira,Alam, Sultan,Rehan, Kamran,&Sultana, Sabiha.(2019).Adsorptive removal of new methylene blue from water by treated Malus domestica sawdust as a low cost biosorbent - equilibrium, kinetics and thermodynamic studies.DESALINATION AND WATER TREATMENT,166,72-82.
MLA	Naz, Saira,et al."Adsorptive removal of new methylene blue from water by treated Malus domestica sawdust as a low cost biosorbent - equilibrium, kinetics and thermodynamic studies".DESALINATION AND WATER TREATMENT 166(2019):72-82.