Solvent-Free Synthesized Monolithic Ultraporous Aluminas for Highly Efficient Removal of Remazol Brilliant Blue R: Equilibrium, Kinetic, and Thermodynamic Studies
文献类型：期刊论文
| 作者 | Xu, Huan2,3; Boeuf, Guilhem3; Jia, Zixian2; Zhu, Kairuo1; Nikravech, Mehrdad2; Kanaev, Andrei2; Azouani, Rabah3; Traore, Mamadou2; Elm'selmi, Abdellatif3 |
| 刊名 | MATERIALS
 |
| 出版日期 | 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. |
| WOS关键词 | AQUEOUS-SOLUTIONS ; MAGNETIC NANOPARTICLES ; FUNDAMENTAL PROPERTIES ; ADSORPTIVE REMOVAL ; REACTIVE DYES ; TEXTILE DYE ; BIOSORPTION ; SOLIDS ; CARBON ; CONSTITUTION |
| 资助项目 | China Scholarship Council (CSC) ; EBI |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000660277000001 |
| 出版者 | MDPI |
| 资助机构 | China Scholarship Council (CSC) ; EBI |
| 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.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, POB 1126, Hefei 230031, Peoples R China 2.Univ Sorbonne Paris Nord, CNRS, Lab Sci Proc & Mat, F-93430 Villetaneuse, France 3.Ecole Biol Ind, EBInnov, F-95000 Cergy, France |
| 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). |
入库方式： OAI收割
来源：合肥物质科学研究院
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