Investigation on adsorption and regeneration performances of multi-walled carbon nanotubes by supercritical water technique
HE Jin-mei1, HUANG Yu-dong1, MENG Ling-hui1, ZHAO Jin-hua1, SUN De-zhi2
1.School of Chemical Engineering and Technology,Harbin Institute of Technology,Harbin 150001,China;2.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China
Abstract:
In this paper,adsorption and regeneration characteristics of multi-walled carbon nanotubes (MWNTs) used as adsorbent were investigated for the removal of 1,3-benzenediol (BDO) from water by the supercritical water (SCW) technique. FTIR,XPS,SEM and dispersion stability tests were used to characterize the structure and surface morphology of CNTs. The results showed that CNTs surfaces were slightly activated and strongly etched in supercritical water system. The adsorption capacity of SCW-treated CNTs was higher than that of raw CNTs. The adsorbed amounts for treated CNTs and raw CNTs samples at the same initial concentration of 60 mg/L were ca. 16.42 and 7.30 mg/g,respectively. The BDO adsorption of treated CNTs was due to the physical adsorption. The experimental data fit Freundlich isotherm model better than Langmuir one. The loaded adsorbent could be efficiently desorbed and regenerated by SCW technique. Therefore,SCW is a promising and environmentally friendly technique for the improvement of adsorption and regeneration of CNTs.
Key words: MWNTs adsorption supercritical water regeneration
DOI：10.11916/j.issn.1005-9113.2009.03.011
Clc Number:
Fund:
删除或更新信息，请邮件至freekaoyan#163.com(#换成@)
Investigation on adsorption and regeneration performances of multi-walled carbon nanotubes by superc
本站小编 哈尔滨工业大学/2019-10-23
相关话题/Investigation adsorption and regeneration performances
领限时大额优惠券,享本站正版考研考试资料!
优惠券领取后72小时内有效，10万种最新考研考试考证类电子打印资料任你选。涵盖全国500余所院校考研专业课、200多种职业资格考试、1100多种经典教材，产品类型包含电子书、题库、全套资料以及视频，无论您是考研复习、考证刷题，还是考前冲刺等，不同类型的产品可满足您学习上的不同需求。 ...考试优惠券 本站小编 Free壹佰分学习网 2022-09-19Influence of Si Contents on the Microstructure Evolution and Mechanical Properties of Al-Mg-Si-Cu-Zn
Influence of Si Contents on the Microstructure Evolution and Mechanical Properties of Al-Mg-Si-Cu-Zn Alloys Author NameAffiliationLiang ZhuState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, ChinaMingxing GuoS ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05GEO Satellite Thruster Configuration and Optimization
GEO Satellite Thruster Configuration and Optimization Author NameAffiliationJiajia FengBeijing Institute of Control Engineering, Beijing 100190, ChinaScience and Technology on Space Intelligent Control Laboratory,Beijing 100190,ChinaZuowei WangBeijing Institute of Control En ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Hidden Attractors in a Delayed Memristive Differential System with Fractional Order and Chaos Synchr
Hidden Attractors in a Delayed Memristive Differential System with Fractional Order and Chaos Synchronization Author NameAffiliationDawei DingSchool of Electronics and Information Engineering, Anhui University, Hefei 230601, ChinaKey Laboratory of Intelligent Computing and S ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Vibration Absorption Efficiency and Higher Branches Elimination of Variable-Stiffness Nonlinear Ener
Vibration Absorption Efficiency and Higher Branches Elimination of Variable-Stiffness Nonlinear Energy Sink Author NameAffiliationRui ZhongTianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System, Tianjin University of Technology,Tian ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Biodegradation of Ammonia Nitrogen Using a Novel Candida sp. Strain N6 Immobilization
Biodegradation of Ammonia Nitrogen Using a Novel Candida sp. Strain N6 Immobilization Author NameAffiliationKai WangSchool of Marine Science and Technology, Harbin Institute of Technology, Weihai,Weihai 264209, Shandong, ChinaSchool of Municipal and Environmental Engineering ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Aging Behavior and Creep Characteristics of CACB
Aging Behavior and Creep Characteristics of CACB Author NameAffiliationYunliang LiSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaYuze LiuSchool of Transportation Science and Engineering, Harbin Institute of Technology, H ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Loop Closure Detection of Visual SLAM Based on Point and Line Features
Loop Closure Detection of Visual SLAM Based on Point and Line Features Author NameAffiliationChang’an LiuSchool of Control and Computer Engineering,North China Electric Power University,Beijing 102206, ChinaRuiying ChengSchool of Control and Computer Engineering,North China ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Dynamics Analysis of Fractional-Order Memristive Time-Delay Chaotic System and Circuit Implementatio
Dynamics Analysis of Fractional-Order Memristive Time-Delay Chaotic System and Circuit Implementation Author NameAffiliationDawei DingSchool of Electronics and Information Engineering, Anhui University, Hefei 230601, ChinaHui LiuSchool of Electronics and Information Engineer ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Static and Dynamic Analyses of Composite Beam Bonded with MFC Actuator
Static and Dynamic Analyses of Composite Beam Bonded with MFC Actuator Author NameAffiliationKe WuXi’an Institution of Space Radio Technology, Xi’an 710100, ChinaHoufei FangShanghai YS Information Technology Co., Ltd., Shanghai 200240, ChinaLan LanShanghai YS Information Tec ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05Investigations about the Atomic Structure and Mechanical Behavior of Metallic Glasses after Melt Hyd
Investigations about the Atomic Structure and Mechanical Behavior of Metallic Glasses after Melt Hydrogenation Author NameAffiliationBinbin WangNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Te ...哈尔滨工业大学科研学术 本站小编 哈尔滨工业大学 2020-12-05
