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

doi:10.3390/ma14113054

HFCAS OpenIR

	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 2; Jia, Zixian 1; Zhu, Kairuo 3; Nikravech, Mehrdad 1; Kanaev, Andrei 1; Azouani, Rabah 2; Traore, Mamadou 1; Elm'selmi, Abdellatif 2
	2021-06-01
发表期刊	MATERIALS
通讯作者	Jia, Zixian(zixian.jia@gmail.com) ; Traore, Mamadou(mamadou.traore@lspm.cnrs.fr) ; Elm'selmi, Abdellatif(a.elmselmi@hubebi.com)
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.
关键词	ultraporous aluminas RBBR kinetic models diffusion models isotherm models thermodynamics
DOI	10.3390/ma14113054
关键词[WOS]	AQUEOUS-SOLUTIONS ; MAGNETIC NANOPARTICLES ; FUNDAMENTAL PROPERTIES ; ADSORPTIVE REMOVAL ; REACTIVE DYES ; TEXTILE DYE ; BIOSORPTION ; SOLIDS ; CARBON ; CONSTITUTION
收录类别	SCI
语种	英语
资助项目	China Scholarship Council (CSC) ; EBI
项目资助者	China Scholarship Council (CSC) ; EBI
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000660277000001
出版者	MDPI
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/123739
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.Univ Sorbonne Paris Nord, CNRS, Lab Sci Proc & Mat, F-93430 Villetaneuse, France 2.Ecole Biol Ind, EBInnov, F-95000 Cergy, 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).