Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| Enhanced adsorptive removal of Safranine T from aqueous solutions by waste sea buckthorn branch powder modified with dopamine: Kinetics, equilibrium, and thermodynamics | |
| Xu, Xiaohui1,2; Bai, Bo3; Wang, Honglun3; Suo, Yourui3 | |
| 2015-12-01 | |
| 发表期刊 | JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
 |
| 卷号 | 87页码:23-31 |
| 文章类型 | Article |
| 摘要 | Polydopamine coated sea buckthorn branch powder (PDA@SBP) was facilely synthesized via a one-pot bio-inspired dip-coating approach. The as-synthesized PDA@SBP was characterized using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The adsorption progresses of Safranine T on the surface of PDA@SBP adsorbent were systematically investigated. More specifically, the effects of solution pH, contact time, initial concentration and temperature were evaluated, respectively. The experimental results showed the adsorption capacity of PDA@SBP at 293.15 K could reach up to 54.0 mg/g; the adsorption increased by 201.7% compared to that of native SBP (17.9 mg/g). Besides, kinetics studies showed that pseudo-second-order kinetic model adequately described the adsorption behavior. The adsorption experimental data could be fitted well a Freundlich isotherm model. Thermodynamic analyses showed that the ST adsorption was a physisorption endothermic process. Regeneration of the spent PDA@SBP adsorbent was conducted with 0.1 M HCl without significant reduction in adsorption capacity. On the basis of these investigations, it is believed that the PDA@SBP adsorbent could have potential applications in sewage disposal areas because of their considerable adsorption capacities, brilliant regeneration capability, and cost-effective and eco-friendly preparation and use. (C) 2015 Elsevier Ltd. All rights reserved.; Polydopamine coated sea buckthorn branch powder (PDA@SBP) was facilely synthesized via a one-pot bio-inspired dip-coating approach. The as-synthesized PDA@SBP was characterized using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The adsorption progresses of Safranine T on the surface of PDA@SBP adsorbent were systematically investigated. More specifically, the effects of solution pH, contact time, initial concentration and temperature were evaluated, respectively. The experimental results showed the adsorption capacity of PDA@SBP at 293.15 K could reach up to 54.0 mg/g; the adsorption increased by 201.7% compared to that of native SBP (17.9 mg/g). Besides, kinetics studies showed that pseudo-second-order kinetic model adequately described the adsorption behavior. The adsorption experimental data could be fitted well a Freundlich isotherm model. Thermodynamic analyses showed that the ST adsorption was a physisorption endothermic process. Regeneration of the spent PDA@SBP adsorbent was conducted with 0.1 M HCl without significant reduction in adsorption capacity. On the basis of these investigations, it is believed that the PDA@SBP adsorbent could have potential applications in sewage disposal areas because of their considerable adsorption capacities, brilliant regeneration capability, and cost-effective and eco-friendly preparation and use. (C) 2015 Elsevier Ltd. All rights reserved. |
| 关键词 | Polymers Chemical Synthesis Surface Properties |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.jpcs.2015.07.022 |
| 关键词[WOS] | METHYLENE-BLUE ; HALLOYSITE NANOTUBES ; CARBON NANOTUBES ; ACTIVATED CARBON ; CATIONIC DYES ; POLYDOPAMINE ; ADSORBENT ; NANOPARTICLE ; HYDROGELS ; BEHAVIOR |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | Opening Foundation of Shaanxi Key Laboratory of Exploration and Comprehensive Utilization of Mineral Resources(2014HB001) ; China Post-doctoral Science Foundation(201104615) ; Scientific Research Foundation for the Returned Overseas Chinese Scholars(21176031) ; Fundamental Research Funds for the Central Universities(2013G2291015) |
| WOS研究方向 | Chemistry ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Physics, Condensed Matter |
| WOS记录号 | WOS:000363355200004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/5487 |
| 专题 | 中国科学院西北高原生物研究所 |
| 作者单位 | 1.Shaanxi Key Lab Explorat & Comprehens Utilizat Mi, Xian 710054, Peoples R China 2.Changan Univ, Coll Environm Sci & Engn, Xian 710054, Peoples R China 3.Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Xiaohui,Bai, Bo,Wang, Honglun,et al. Enhanced adsorptive removal of Safranine T from aqueous solutions by waste sea buckthorn branch powder modified with dopamine: Kinetics, equilibrium, and thermodynamics[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2015,87:23-31. |
| APA | Xu, Xiaohui,Bai, Bo,Wang, Honglun,&Suo, Yourui.(2015).Enhanced adsorptive removal of Safranine T from aqueous solutions by waste sea buckthorn branch powder modified with dopamine: Kinetics, equilibrium, and thermodynamics.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,87,23-31. |
| MLA | Xu, Xiaohui,et al."Enhanced adsorptive removal of Safranine T from aqueous solutions by waste sea buckthorn branch powder modified with dopamine: Kinetics, equilibrium, and thermodynamics".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 87(2015):23-31. |
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