Solvent-Free Synthesized Monolithic Ultraporous Aluminas for Highly Efficient Removal of Remazol Brilliant Blue R: Equilibrium, Kinetic, and Thermodynamic Studies

doi:10.3390/ma14113054

	Solvent-Free Synthesized Monolithic Ultraporous Aluminas for Highly Efficient Removal of Remazol Brilliant Blue R: Equilibrium, Kinetic, and Thermodynamic Studies
	Xu, Huan 1,2; Boeuf, Guilhem 1; Jia, Zixian 2; Zhu, Kairuo 3; Nikravech, Mehrdad 2; Kanaev, Andrei 2; Azouani, Rabah 1; Traore, Mamadou 2; Elm'selmi, Abdellatif 1
刊名	MATERIALS
	2021-06-01
卷号	14
关键词	ultraporous aluminas RBBR kinetic models diffusion models isotherm models thermodynamics
DOI	10.3390/ma14113054
通讯作者	Jia, Zixian(zixian.jia@gmail.com) ; Traore, Mamadou(mamadou.traore@lspm.cnrs.fr) ; Elm'selmi, Abdellatif(a.elmselmi@hubebi.com)
英文摘要	In this study, ultraporous aluminas (UPA) were synthesized as new effective adsorbents for Remazol Brilliant Blue R (RBBR) removal from aqueous solutions. The UPA monoliths were grown via facile oxidation process, followed by isochronous annealing treatment in air at different temperatures, through which gamma, theta, and alpha phase polycrystalline fibrous grains of UPA can be accordingly obtained. The experimental factors that affect the material adsorption performances including initial pH, contact time, and temperature were comprehensively studied by batch experiments. The RBBR adsorption isotherms of UPA(gamma) and UPA(theta) powders were found almost identical, while UPA(alpha) powders showed low effectiveness. To obtain the desirable mechanical stability of the UPA monolith with considerable RBBR adsorption capacity, UPA(theta) powders were further studied. The UPA(theta) powders exhibited maximum RBBR adsorption at pH 2 due to the positively charged surface under acidic conditions. Compared with the Lagergren pseudo-first-order model, the pseudo-second-order model was found to explain the adsorption kinetics better. Despite the film diffusion dominating the adsorption process, the contributions of the intraparticle diffusion and chemical reactions were also found significant. The adsorption equilibrium data at different temperatures were fitted by the Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R) isotherm models. The Langmuir model was found the most effective in the description of equilibrium data, and the maximum RBBR adsorption capacity retained by UPA(theta) powders was 122.55 mg center dot g(-1) at 295 K. Thermodynamic parameters (Delta G(0), Delta H-0, and Delta S-0) indicated the adsorption process was spontaneous and exothermic in nature.
资助项目	China Scholarship Council (CSC) ; EBI
WOS关键词	AQUEOUS-SOLUTIONS ; MAGNETIC NANOPARTICLES ; FUNDAMENTAL PROPERTIES ; ADSORPTIVE REMOVAL ; REACTIVE DYES ; TEXTILE DYE ; BIOSORPTION ; SOLIDS ; CARBON ; CONSTITUTION
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000660277000001
资助机构	China Scholarship Council (CSC) ; EBI
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123738]
专题	中国科学院合肥物质科学研究院
通讯作者	Jia, Zixian; Traore, Mamadou; Elm'selmi, Abdellatif
作者单位	1.Ecole Biol Ind, EBInnov, F-95000 Cergy, France 2.Univ Sorbonne Paris Nord, CNRS, Lab Sci Proc & Mat, F-93430 Villetaneuse, France 3.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, POB 1126, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xu, Huan,Boeuf, Guilhem,Jia, Zixian,et al. Solvent-Free Synthesized Monolithic Ultraporous Aluminas for Highly Efficient Removal of Remazol Brilliant Blue R: Equilibrium, Kinetic, and Thermodynamic Studies[J]. MATERIALS,2021,14.
APA	Xu, Huan.,Boeuf, Guilhem.,Jia, Zixian.,Zhu, Kairuo.,Nikravech, Mehrdad.,...&Elm'selmi, Abdellatif.(2021).Solvent-Free Synthesized Monolithic Ultraporous Aluminas for Highly Efficient Removal of Remazol Brilliant Blue R: Equilibrium, Kinetic, and Thermodynamic Studies.MATERIALS,14.
MLA	Xu, Huan,et al."Solvent-Free Synthesized Monolithic Ultraporous Aluminas for Highly Efficient Removal of Remazol Brilliant Blue R: Equilibrium, Kinetic, and Thermodynamic Studies".MATERIALS 14(2021).