1
|
New route for removal of Cu(II) using fabricated nanocomposite based on cationic surfactant/Ag-nanoparticles/silica gel. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
2
|
James AM, Harding S, Robshaw T, Bramall N, Ogden MD, Dawson R. Selective Environmental Remediation of Strontium and Cesium Using Sulfonated Hyper-Cross-Linked Polymers (SHCPs). ACS APPLIED MATERIALS & INTERFACES 2019; 11:22464-22473. [PMID: 31141662 PMCID: PMC7007012 DOI: 10.1021/acsami.9b06295] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/29/2019] [Indexed: 05/30/2023]
Abstract
Sulfonated hyper-cross-linked polymers based on 4,4'-bis(chloromethyl)-1,1'-biphenyl (BCMBP) were synthesized via metal-free (SHCP-1) and conventional Lewis acid-catalyzed (SHCP-2) Friedel-Crafts alkylation routes. The sulfonated polymers possessed BET surface areas in excess of 500 m2·g-1. SHCP-1 was investigated for its ability to extract Sr and Cs ions from aqueous solutions via the ion-exchange reaction of the sulfonic acid moiety. Equilibrium uptake data could be accurately modeled by the Dubinin-Radushkevich isotherm, with maximum calculated loading values of 95.6 ± 2.8 mg·g-1 (Sr) and 273 ± 37 mg·g-1 (Cs). Uptake of both target ions was rapid, with pseudo second-order rate constants calculated as 7.71 ± 1.1 (×10-2) for Sr and 0.113 ± 0.014 for Cs. Furthermore, the polymer was found to be highly selective toward the target ions over large excesses of naturally occurring competing metal ions Na, K, Mg, and Ca. We conclude that hyper-cross-linked polymers may offer intrinsic advantages over other adsorbents for the remediation of aqueous Sr and Cs contamination.
Collapse
Affiliation(s)
- Alex M. James
- Department of Chemistry, Dainton Building, University of Sheffield, Sheffield, S3 7HF, U.K.
| | - Samuel Harding
- Department of Chemistry, Dainton Building, University of Sheffield, Sheffield, S3 7HF, U.K.
| | - Thomas Robshaw
- Department of Chemistry, Dainton Building, University of Sheffield, Sheffield, S3 7HF, U.K.
- Department of Chemical and Biological Engineering, Sir Robert Hadfield Building, University of Sheffield, Sheffield, S1 3JD, U.K.
| | - Neil Bramall
- Department of Chemistry, Dainton Building, University of Sheffield, Sheffield, S3 7HF, U.K.
| | - Mark D. Ogden
- Department of Chemical and Biological Engineering, Sir Robert Hadfield Building, University of Sheffield, Sheffield, S1 3JD, U.K.
| | - Robert Dawson
- Department of Chemistry, Dainton Building, University of Sheffield, Sheffield, S3 7HF, U.K.
| |
Collapse
|
3
|
Nanocomposite SiEA-KNiFe sorbent — Complete solution from synthesis through radiocesium sorption to vitrification using the sol–gel method. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.07.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
4
|
Figueiredo BR, Cardoso SP, Portugal I, Rocha J, Silva CM. Inorganic Ion Exchangers for Cesium Removal from Radioactive Wastewater. SEPARATION & PURIFICATION REVIEWS 2017. [DOI: 10.1080/15422119.2017.1392974] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Bruno R Figueiredo
- Department of Chemistry, CICECO – Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Simão P Cardoso
- Department of Chemistry, CICECO – Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Inês Portugal
- Department of Chemistry, CICECO – Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - João Rocha
- Department of Chemistry, CICECO – Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Carlos Manuel Silva
- Department of Chemistry, CICECO – Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| |
Collapse
|
5
|
Mu W, Zhang R, Li X, Xie X, Yu Q, Lv K, Wei H, Jian Y. Pyrochlore Ta-doped antimony oxide as a novel adsorbent for efficient strontium removal. RSC Adv 2015. [DOI: 10.1039/c4ra13992e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Incorporation of Ta5+ into the antimony oxide led to an expansion of the pyrochlore structure, and increases in the surface hydroxyl group content of the sorbent, consequently improving the Sr2+ adsorption capacity considerably.
Collapse
Affiliation(s)
- Wanjun Mu
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Rui Zhang
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Xingliang Li
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Xiang Xie
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Qianhong Yu
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Kai Lv
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Hongyuan Wei
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Yuan Jian
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| |
Collapse
|
6
|
Ding D, Zhao Y, Yang S, Shi W, Zhang Z, Lei Z, Yang Y. Adsorption of cesium from aqueous solution using agricultural residue--walnut shell: equilibrium, kinetic and thermodynamic modeling studies. WATER RESEARCH 2013; 47:2563-2571. [PMID: 23481288 DOI: 10.1016/j.watres.2013.02.014] [Citation(s) in RCA: 147] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 02/05/2013] [Accepted: 02/08/2013] [Indexed: 06/01/2023]
Abstract
A novel biosorbent derived from agricultural residue - walnut shell (WS) is reported to remove cesium from aqueous solution. Nickel hexacyanoferrate (NiHCF) was incorporated into this biosorbent, serving as a high selectivity trap agent for cesium. Field emission scanning electron microscope (FE-SEM) and thermogravimetric and differential thermal analysis (TG-DTA) were utilized for the evaluation of the developed biosorbent. Determination of kinetic parameters for adsorption was carried out using pseudo first-order, pseudo second-order kinetic models and intra-particle diffusion models. Adsorption equilibrium was examined using Langmuir, Freundlich and Dubinin-Radushkevich adsorption isotherms. A satisfactory correlation coefficient and relatively low chi-square analysis parameter χ(2) between the experimental and predicted values of the Freundlich isotherm demonstrate that cesium adsorption by NiHCF-WS is a multilayer chemical adsorption. Thermodynamic studies were conducted under different reaction temperatures and results indicate that cesium adsorption by NiHCF-WS is an endothermic (ΔH° > 0) and spontaneous (ΔG° < 0) process.
Collapse
Affiliation(s)
- Dahu Ding
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | | | | | | | | | | | | |
Collapse
|
7
|
Gandhi MR, Meenakshi S. Preparation and characterization of La(III) encapsulated silica gel/chitosan composite and its metal uptake studies. JOURNAL OF HAZARDOUS MATERIALS 2012; 203-204:29-37. [PMID: 22197561 DOI: 10.1016/j.jhazmat.2011.11.062] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 11/18/2011] [Accepted: 11/18/2011] [Indexed: 05/31/2023]
Abstract
Lanthanum loaded silica gel/chitosan composite (LaSiCS) was prepared by mixing silica gel, LaCl(3) · 7H(2)O and chitosan which was then cross-linked with glutaraldhyde. The LaSiCS composite was characterized using FT-IR, SEM-EDAX, XRD and BET. The adsorption of chromium(VI) ions onto LaSiCS composite has been investigated. The LaSiCS composite was found to have excellent chromium adsorption capacity than the silica gel/chitosan composite (SiCS), silica gel (Si) and chitosan (CS). The sorption experiments were carried out in batch mode to optimize various parameters viz., contact time, pH, initial chromium ion concentration, co-ions and temperature that influence the sorption. Langmuir and Freundlich adsorption models were applied to describe isotherm constants. Equilibrium data agreed very well with the Langmuir model. Thermodynamic studies revealed that the nature of chromium sorption was spontaneous and endothermic. The LaSiCS composite removes chromium by electrostatic adsorption coupled reduction/ion-exchange.
Collapse
|
8
|
Delchet C, Tokarev A, Dumail X, Toquer G, Barré Y, Guari Y, Guerin C, Larionova J, Grandjean A. Extraction of radioactive cesium using innovative functionalized porous materials. RSC Adv 2012. [DOI: 10.1039/c2ra00012a] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
9
|
Ebner AD, Ritter JA, Navratil JD. Adsorption of Cesium, Strontium, and Cobalt Ions on Magnetite and a Magnetite−Silica Composite. Ind Eng Chem Res 2001. [DOI: 10.1021/ie000695c] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Armin D. Ebner
- Department of Chemical Engineering, Swearingen Engineering Center, University of South Carolina, Columbia, South Carolina 29208, and Department of Environmental Engineering and Science, Clemson University, Anderson, South Carolina 29625
| | - James A. Ritter
- Department of Chemical Engineering, Swearingen Engineering Center, University of South Carolina, Columbia, South Carolina 29208, and Department of Environmental Engineering and Science, Clemson University, Anderson, South Carolina 29625
| | - James D. Navratil
- Department of Chemical Engineering, Swearingen Engineering Center, University of South Carolina, Columbia, South Carolina 29208, and Department of Environmental Engineering and Science, Clemson University, Anderson, South Carolina 29625
| |
Collapse
|