Enhanced adsorptive removal of Safranine T from aqueous solutions by waste sea buckthorn branch powder modified with dopamine: Kinetics, equilibrium, and thermodynamics

	Enhanced adsorptive removal of Safranine T from aqueous solutions by waste sea buckthorn branch powder modified with dopamine: Kinetics, equilibrium, and thermodynamics
	Xu, Xiaohui 1,2; Bai, Bo 3; Wang, Honglun 3; Suo, Yourui 3
刊名	journal of physics and chemistry of solids
	2015-12-01
卷号	87 页码:23-31
关键词	Polymers Chemical synthesis Surface properties
中文摘要	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.
英文摘要	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.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary ; physics, condensed matter
研究领域[WOS]	chemistry ; physics
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
WOS记录号	WOS:000363355200004
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/5487]
专题	西北高原生物研究所_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.