Porous Carbon Spheres Derived from Waste Ion-Exchange Resins and Research on Adsorption of Methylene Blue

被引：11
作者：
Li, Liang [1 ]
Lian, Zhentao [1 ]
Meng, Xuan [1 ]
Wang, Xin [1 ]
Liu, Naiwang [1 ]
Shi, Li [1 ]
机构：
[1] East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Chem Technol, 130 Meilong Rd, Shanghai 200237, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL ENGINEERING | 2020年 / 146卷 / 07期
关键词：
Waste ion-exchange resin; Adsorption; Methylene blue (MB); KOH-activated carbon (KAC); HIGH-EFFICIENCY ADSORBENT; AREA ACTIVATED CARBON; CHEMICAL ACTIVATION; AQUEOUS-SOLUTION; PERFORMANCE; REMOVAL; EQUILIBRIUM; KOH; KINETICS; CATALYST;
D O I：
10.1061/(ASCE)EE.1943-7870.0001718
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A kind of porous carbon spherical material with high specific surface (SBET=1,292m2/g) was synthesized from deactivated methyl tert butyl ether (MTBE) resins with KOH as the activator (KAC). This synthesized material was characterized by Brunner Emmet Teller (BET) measurements, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis (TG), and X-ray fluorescence (XRF). Additionally, the mechanism of adsorbing methylene blue (MB) on this porous carbon sphere was studied and interpreted from kinetics, adsorption equilibrium and thermodynamic properties. Results showed that the kinetics data fitted the pseudo-second-order model well; the adsorption equilibrium data followed Langmuir model with a maximum adsorption capacity of 478.5mg/g; and the thermodynamic parameters displayed an endothermic and spontaneous adsorption process of MB on carbon spheres.
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页数：10
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