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Trans. Nonferrous Met. Soc. China 22(2012) 1224-1231 Characterization of adsorptive capacity and mechanisms on adsorption of copper, lead and zinc by modified orange peel FENG Ning-chuan1,2, GUO... of the adsorbent were evaluated by infrared spectroscopy (IR), scanning electron microscopy (SEM) and N2-adsorption techniques. The adsorption behavior of Cu2+, Pb2+ and Zn2+ on modified orange peel (SCOP......
J. Cent. South Univ. Technol. (2011) 18: 1883-1890 DOI: 10.1007/s11771-011-0918-9 Adsorption of NO and NH3 over CuO/γ-Al2O3 catalyst ZHAO Qing-sen(赵清森)1, SUN Lu-shi(孙路石)2, LIU Yong(刘勇)1, SU Sheng(苏胜..., and the adsorption of NH3 and NO on CuO/γ-Al2O3 catalysts plays an important role in the reaction. Performance of the CuO/γ-Al2O3 catalysts was explored in a fixed bed adsorption system. The catalysts maintain nearly......
by batch adsorption, and the adsorption process was analyzed from thermodynamics and kinetics aspects. The adsorption mechanism of Pb2+ on the modified D401 chelating resin was discussed by FT-IR... mL of Pb2+ solutions (initial concentration is 300 mg/L) at the initial pH and a constant temperature of 298 K. Kinetics of adsorption was determined by analyzing adsorptive uptake of Pb2+ from aqueous......
Thermal stability and curing kinetics of polycarbosilane fibers ZHENG Chun-man (郑春满), LI Xiao-dong (李效东), WANG Hao (王 浩), ZHU Bin(朱 冰) (State Key Laboratory of New Ceramic Fibers and composites...; Abstract: Thermal stability and curing kinetics of polycarbosilane (PCS) fibers were studied by thermogravimetry (TG), Fourier transform infrared spectroscopy(FT-IR). Curing......
J. Cent. South Univ. (2020) 27: 27-36 DOI: https://doi.org/10.1007/s11771-020-4275-4 Kinetics of leaching lithium from lepidolite using mixture of hydrofluoric and sulfuric acid WANG Hai-dong(王海东)1... shows great potential in leaching lithium (Li) from lepidolite. Leaching kinetics of Li in a mixture of sulfuric acid and hydrofluoric acid, which is a typical lixivant for the fluorine-based chemical......
surface area measurements and the analysis of adsorption kinetics, were introduced to analyze the adsorption mechanisms of the Pb2+ ions on bauxite flotation tailings. The isoelectric point of bauxite...) and the analysis of adsorption isotherm and kinetics. 2 Experimental 2.1 Materials and apparatus The bauxite tailings samples were supplied by Zhengzhou Bauxite Flotation Plant, Henan, China. Samples were......
the secondary reaction, which was mainly concerned on the selection and application of additives as well as the adsorption kinetics and thermodynamics [5-7]. However, the basic theories..., 2002(1): 26-28. (in Chinese) [7] SHEU E Y, STORM D A, SHIELDS M B. Adsorption kinetics of asphaltenes at toluene/acid solution interface [J]. Fuel, 1995, 74: 1475-1479. [8] YU Hai-yan, PAN Xiao-lin......
nanoparticle on the morphology, structure and adsorption ability of the material. In addition, the adsorption performance of lead ions onto 3D graphene/MgO was investigated. The adsorption kinetics... was promising in removal of heavy metal ions. 3.3 Adsorption kinetics Adsorption is a process of dynamic balance, the adsorption rate and the equilibrium time can be obtained from the adsorption kinetics......
. The adsorption rate is found to accelerate with an increase in the amount of BF. Fig.1 Time dependence of Cd ion adsorption onto BF: (a) Time course; (b) Kinetics curves (Cd initial concentration: 0.1... constant (mmol?g-1?min-1). Plots of t/qt vs t for Cd-BF systems are shown in Fig.1(b). It can be seen that the adsorption process for Cd on BF follows the pseudo second-order kinetics. 3.3 Effect of pH......
the highest Er(Ⅲ) ion uptake as 250 mg/g at 298 K, at an initial pH value of 6.04, calculated from the Langmuir isotherm model. The adsorption kinetics was in agreement with Lagergren-first-order kinetics...Adsorption of erbium(Ⅲ) on D113-Ⅲ resin from aqueous solutions:batch and column studies YAO Caiping1,XIONG Chunhua1,MENG Yuan1,SHEN Chen1 (1.Department of Applied Chemistry,Zhejiang Gongshang......