preparation and adsorption behavior for metal ions of

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Adsorption‐Desorption Experiments The influence of different parameters (contact time and initial concentration of divalent ions) on metal ions adsorption onto resins was studied To study the effect of the contact time on adsorption the experiments were carried The adsorption capacities of cys‐chitin for Cd II Pb II and Zn II were 214 6 351 5 and 107 0 mg/g respectively It also had good adsorption properties for heavy metal ions The adsorption capacities were also affected by the acidity of medium

Preparation of hydroxyapatite nanostructures with

Hydroxyapatite (HAP) nanostructures with different morphologies have been successfully synthesized in a facile method and the pH value of the solution has an important effect on morphology Among them the porous HAP nanospheres (NSs) with an average diameter of 76 nm were further employed as adsorbent to remove the heavy metal ions in solution The BET surface area pore size and pore volume

The adsorption capacities of cys‐chitin for Cd II Pb II and Zn II were 214 6 351 5 and 107 0 mg/g respectively It also had good adsorption properties for heavy metal ions The adsorption capacities were also affected by the acidity of medium

2018/1/24Khan et al described the adsorption behavior and use of CNTs including the effects of surface modification on the adsorption behavior and subsequent heavy metal removal In review Sadegh et al ( 2016 ) discussed recent developments and applications of CNTs for heavy metal ions removal from polluted water and their advantages as adsorbents in the treatment of polluted aqueous

First published on 16th January 2017 The study focused on the preparation of a chelating resin with pyridine ring as the functional group The 4VP monomer was directly grafted on the surface of CMPS resin via SI-ATRP and the performance of adsorption of resin for Cr(VI) Pb(II) Cr(III) Zn(II) and Cd(II) was determined

This paper describes the adsorption of lead and cadmium ions from an aqueous solution using a composite of titanium dioxide (TiO 2)-incorporated polyacrylonitrile (PAN) electrospun nanofibers Adsorption capacities and the mechanical response of the PAN/TiO 2 composite electrospun nanofibers are investigated at different weight percentages of TiO 2 (0 5 1 0 2 0 and 5 0 wt %)

Research on the Adsorption Behavior of Heavy Metal Ions by

Research on the Adsorption Behavior of Heavy Metal Ions by Porous Material Prepared with Silicate Tailings Dongxiao Ouyang 1 † Yuting Zhuo 2 † Liang Hu 1 Qiang Zeng 1 Yuehua Hu 1 and Zhiguo He 1 * 1 School of Minerals Processing and

2008/1/1Adsorption of various metal ions on cellulose phosphate has been studied for decades in view of removal or preconcentration of metal ions Cellulose phosphate functions as ion-exchanger for transition metal ions lanthanide ions and so on

Preparation characterization and Zn(2+) adsorption behavior of chemically modified MCM-41 with 5-mercapto-1-methyltetrazole J Colloid Interface Sci 2007 Sep 15 313(2):551-62 doi: 10 1016/j jcis 2007 04 063 Epub 2007 May 3 Authors Damin Prez

Vol 25 No 4 (2014) (xxx) Article Adsorption Behavior of Metal Ions with β-Diketone Type Chelating Agents Supported on Hydrophobized Mesoporous Silicate MCM-41 Syunichi OSHIMA 1* Yusuke KUMAGAI 1 Yujiro WATANABE 1 Kaoru FUJINAGA 1 Geoffrey

Preparation of 8‐hydroxyquinoline‐type composite chelating material HQ‐PHEMA/SiO 2 and its adsorption behavior for heavy metal ions Yanbin Li Department of Chemical Engineering North University of China Taiyuan 030051 People's Republic of China

Hierarchically porous ferriferrous oxide (Fe 3 O 4) was facilely synthesized via a sol-gel process accompanied by phase separation and further graft modified by dopamine (DA) and polyamido-amine (PAMAM) to prepare macroporous Fe 3 O 4 DAPAMAM for heavy metal ions adsorption DAPAMAM for heavy metal ions adsorption

Preparation and Heavy Metal Ion Adsorption Behavior of Novel Supermagnetic Nanocomposite of Hydrophilic Thiacalix[4]arene Self-doped Polyaniline: Conductivity Isotherm and Kinetic Study RAFIEH-SADAT NOROUZIAN MOSLEM MANSOUR LAKOURAJ

2020/8/23article{Li2013PreparationO8 title={Preparation of 8-hydroxyquinoline-type composite chelating material HQ-PHEMA/SiO2 and its adsorption behavior for heavy metal ions} author={Yanbin Li and Baojiao Gao and Xiaolin Fang} journal={Journal of Chemical Technology Biotechnology} year={2013} volume

Adsorption Behavior of Heavy Metal Ions from Aqueous

2013/8/5Heavy metal ions adsorption from CTA-aliquat 336 polymer inclusion membranes (PIMs): Experimental and kinetic study 2019 020014 DOI: 10 1063/1 5117074 M Hosseinzadeh Removal of Heavy Metal Ions from Aqueous Solutions Using

2007/2/1No l ZHAO Long et ai: Preparation and adsorption behavior for metal ions and humic acid of chitosan 45 35 25 20 15 S 10 5 40 60 80 100 120 140 160 180 200 220 Dose/kGy Fig 2 Gel fraction and swelling of cross-linked CM-chitosan formed by EB irradiation

2018/1/24Khan et al described the adsorption behavior and use of CNTs including the effects of surface modification on the adsorption behavior and subsequent heavy metal removal In review Sadegh et al ( 2016 ) discussed recent developments and applications of CNTs for heavy metal ions removal from polluted water and their advantages as adsorbents in the treatment of polluted aqueous

2013/3/11Preparation of Amidoxime Polyacrylonitrile Chelating Nanofibers and Their Application for Adsorption of Metal Ions Huang F(1) Xu Y(2) Liao S(3) Yang D(4) Hsieh YL(5) Wei Q(6) Author information: (1)Key Laboratory of Eco-Textiles Ministry of Education

2 5 Characterization of Adsorption Mechanism The adsorption mechanism of heavy metal ions on EPS and characteristics before and after adsorption was analyzed using Fourier-transform infrared spectroscopy (FTIR) Zeta potential analysis and three-dimensional fluorescence spectrophotometry (3D-EEM) to examine the interactions between EPS and Pb 2+ Cd 2+ and Ni 2+ respectively

A novel mesoporous silica (MS) with the high specific surface area up to 1 199 m2/g was prepared from coal slag by SO 3 2− leaching and hydrothermal synthesis Its application in metal ion removal was explored using Pb2+ Cu2+ Co2+ and Cd2+ as the model ions The effects of adsorption time pH initial metal ion concentration adsorbent dosage and adsorption temperature on the metal ion

The Cd2+-IIP had higher adsorption capacity to Cd2+ than other different ions There were less difference in the adsorption capacity between different dosages of Cd2+-IIP but the adsorption capacity of Cd2+ adsorbed onto Cd2+-IIP decreased with increasing the dosages Under the optimum conditions the ions-imprinted polymer offered a fast adsorption of Cd2+ and the maximum capacity

1 Chemosphere 2004 Apr 55(1):135-40 Preparation of alginate-chitosan hybrid gel beads and adsorption of divalent metal ions Gotoh T(1) Matsushima K Kikuchi K Author information: (1)Department of Materials Process Engineering and Applied Chemistry for Environments Faculty of Engineering Resource Science Akita University 1-1 Tegata Gakuen-Cho Akita 010-8502 Japan

Preparation and adsorption behavior for metal ions and humic acid of chitosan derivatives crossl : Adsorption behavior of metal ions with serine-type chitosan Figure 2 showed the results of the acid–base titration for the serine-type