1
|
Du M, Xu Z, Xue Y, Li F, Bi J, Liu J, Wang S, Guo X, Zhang P, Yuan J. Application Prospect of Ion-Imprinted Polymers in Harmless Treatment of Heavy Metal Wastewater. Molecules 2024; 29:3160. [PMID: 38999112 PMCID: PMC11243660 DOI: 10.3390/molecules29133160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/14/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
With the rapid development of industry, the discharge of heavy metal-containing wastewater poses a significant threat to aquatic and terrestrial environments as well as human health. This paper provides a brief introduction to the basic principles of ion-imprinted polymer preparation and focuses on the interaction between template ions and functional monomers. We summarized the current research status on typical heavy metal ions, such as Cu(II), Ni(II), Cd(II), Hg(II), Pb(II), and Cr(VI), as well as metalloid metal ions of the As and Sb classes. Furthermore, it discusses recent advances in multi-ion-imprinted polymers. Finally, the paper addresses the challenges faced by ion-imprinted technology and explores its prospects for application.
Collapse
Affiliation(s)
- Mengzhen Du
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
| | - Zihao Xu
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
| | - Yingru Xue
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
| | - Fei Li
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300401, China
| | - Jingtao Bi
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300401, China
| | - Jie Liu
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300401, China
| | - Shizhao Wang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300401, China
| | - Xiaofu Guo
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300401, China
| | - Panpan Zhang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300401, China
| | - Junsheng Yuan
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering, Hebei University of Technology, Tianjin 300401, China; (M.D.); (Z.X.); (Y.X.); (J.B.); (J.L.); (S.W.); (X.G.); (P.Z.); (J.Y.)
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300401, China
| |
Collapse
|
2
|
Mohamad NA, Nasef MM, Abdullah TAT, Ahmad A, Ting TM. CO 2 adsorption and CO 2/CH 4 separation using fibrous amine-containing adsorbents: isothermal, kinetic, and thermodynamic behaviours. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:116906-116920. [PMID: 37121947 DOI: 10.1007/s11356-023-26913-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 04/05/2023] [Indexed: 06/19/2023]
Abstract
A series of fibrous aminated adsorbents for CO2 adsorption were prepared by covalent incorporation of poly (glycidyl methacrylate) (PGMA) by graft copolymerization of GMA onto electron beam (EB) irradiated polyethylenepolypropylene (PE/PP) fibrous sheets and subsequent amination with ethylenediamine (EDA), diethylenetriamine (DETA), or tetraethylenepentamine (TEPA). The physico-chemical properties of the adsorbents were evaluated using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric (TGA), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET) analysis. All the adsorbents displayed typic primary and secondary amine features combined with a decrease in both of crystallinity and surface area of PE/PP, and such a decrease was higher in adsorbents with longer aliphatic chain of the amine. Of all adsorbents, TEPA-containing fibres showed the highest CO2 adsorption capacity and thus was further investigated for CO2 capture from CO2/CH4 mixtures of different gas ratios under various pressures and temperatures. The selectivity of CO2 over CH4 and equilibrium isotherms, kinetics, and thermodynamics of the adsorption on the fibrous aminated adsorbent were all investigated. The Sips model was found to best fit the isotherm of CO2 adsorption suggesting the presence of a combination of monolayer and multilayer adsorptions. The adsorption kinetic data was found to best fit Elovich model reflecting chemisorption. The ΔG°, ΔS°, and ΔH° showed positive values suggesting that the adsorption of CO2 on the present fibrous adsorbent was non-spontaneous with an increase in randomness implying that the process was endothermic. Overall, it can be suggested that PE/PP-g-PGMA/TEPA adsorbent has a strong potential for separation of CO2 from NG.
Collapse
Affiliation(s)
- Noor Ashikin Mohamad
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
- Center of Hydrogen Energy, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra 54100, Kuala Lumpur, Malaysia
| | - Mohamed Mahmoud Nasef
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia.
- Center of Hydrogen Energy, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra 54100, Kuala Lumpur, Malaysia.
| | - Tuan Amran Tuan Abdullah
- Center of Hydrogen Energy, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra 54100, Kuala Lumpur, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
| | - Arshad Ahmad
- Center of Hydrogen Energy, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra 54100, Kuala Lumpur, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
| | - Teo Ming Ting
- Radiation Processing Technology Division, Malaysian Nuclear Agency, 43000, Kajang, Selangor, Malaysia
| |
Collapse
|
3
|
Na Li, Lu H, Liang Y, Zhu F. Microwave-Assisted Magnetic Cu(II)-Imprinted-Polymer Based on Double Functional Monomers for Selective Removal of Cu(II) from Wastewater. J WATER CHEM TECHNO+ 2022. [DOI: 10.3103/s1063455x2206008x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
4
|
Lv X, Zhang Y, Wang X, Hu L, Shi C. Multilayer Graphene Oxide Supported ZIF-8 for Efficient Removal of Copper Ions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3162. [PMID: 36144950 PMCID: PMC9503737 DOI: 10.3390/nano12183162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
To address the performance deterioration of ZIF-8 for the adsorption of copper ions caused by powder volume pressure and particle aggregation, we employed multilayer graphene oxide (MGO) as a support to prepare composite adsorbents (MGO@ZIF-8) by using the in situ growth of ZIF-8 on MGO. Due to a good interfacial compatibility and affinity between ZIF-8 and graphene nanosheets, the MGO@ZIF-8 was successfully prepared. The optimal Cu2+ adsorption conditions of MGO@ZIF-8 were obtained through single factor experiments and orthogonal experiments. Surprisingly, the Cu2+ adsorption capacity was significantly improved by the integration of MGO and ZIF-8, and the maximum Cu2+ adsorption capacity of MGO@ZIF-8 reached 431.63 mg/g under the optimal adsorption conditions. Furthermore, the kinetic fitting and isotherm curve fitting confirmed that the adsorption law of Cu2+ by MGO@ZIF-8 was the pseudo-second-order kinetic model and the Langmuir isotherm model, which indicated that the process of Cu2+ adsorption was monolayer chemisorption. This work provides a new approach for designing and constructing ZIF-8 composites, and also offers an efficient means for the removal of heavy metals.
Collapse
Affiliation(s)
- Xifeng Lv
- College of Chemistry and Chemical Engineering, Tarim University, Alar 843300, China
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Alar 843300, China
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yishi Zhang
- College of Chemistry and Chemical Engineering, Tarim University, Alar 843300, China
| | - Xiaodong Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Libing Hu
- College of Chemistry and Chemical Engineering, Tarim University, Alar 843300, China
| | - Chunhui Shi
- College of Chemistry and Chemical Engineering, Tarim University, Alar 843300, China
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Alar 843300, China
| |
Collapse
|
5
|
Influence of phosphonic acid as a functional group on the adsorption behavior of radiation grafted polypropylene fabrics for Co(II) removal. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2021.109886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
6
|
Functional Microfiber Nonwoven Fabric with Copper Ion-Immobilized Polymer Brush for Detection and Adsorption of Acetone Gas. SENSORS 2021; 22:s22010091. [PMID: 35009635 PMCID: PMC8747101 DOI: 10.3390/s22010091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/15/2021] [Accepted: 12/15/2021] [Indexed: 01/06/2023]
Abstract
The detection and removal of volatile organic compounds (VOCs) are emerging as an important problem in modern society. In this study, we attempted to develop a new material capable of detecting or adsorbing VOCs by introducing a new functional group and immobilizing metal ions into a microfiber nonwoven fabric (MNWF) made through radiation-induced graft polymerization. The suitable metal complex was selected according to the data in “Cambridge Crystallographic Data Center (CCDC)”. 4-picolylamine (4-AMP), designated as a ligand through the metal complex data of CCDC, was introduced at an average mole conversion rate of 63%, and copper ions were immobilized at 0.51 mmol/g to the maximum. It was confirmed that degree of grafting (dg) 170% 4-AMP-Cu MNWF, where copper ions are immobilized, can adsorb up to 50% of acetone gas at about 50 ppm, 0.04 mmol/g- 4-AMP-Cu-MNWF, at room temperature and at a ratio of copper ion to adsorbed acetone of 1:10.
Collapse
|
7
|
Lim SH, Ly NH, Lee JA, Kim JE, La SW, Huong VT, Tran TG, Ho NT, Noh SM, Son SJ, Joo SW. Nanopatterned Polymer Molds Using Anodized Aluminum Templates for Anti-Reflective Coatings. Polymers (Basel) 2021; 13:polym13193333. [PMID: 34641158 PMCID: PMC8512740 DOI: 10.3390/polym13193333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/16/2021] [Accepted: 09/24/2021] [Indexed: 11/16/2022] Open
Abstract
This work introduces a facile geometry-controlled method for the fabrication of embossed and engraved polymeric moth-eye-inspired nanostructures in imprinting molds using anodic aluminum oxide (AAO) templates, resulting in a novel anti-reflective transparent coating. The moth-eye nanostructures are prepared directly on the surface of a flexible polyethylene terephthalate (PET) substrate. As a prerequisite procedure, a UV-curable polyurethane acrylate resin is spun on the PET. The shape of the moth-eye nanostructures can then be adjusted by controlling the size and shape of the nanopores in the AAO templates. Both embossed and concaved polymer moth-eye nanostructures were successfully mounted on a PET substrate. Embossed polymer replica molds were prepared using the AAO master templates in combination with an imprinting process. As revealed by field-emission electron microscope (FE-SEM) images, conical nanopatterns in the AAO template with a diameter of ~90 nm and a depth of ~100 nm, create a homogeneous embossed morphology in the polymer moth-eye nanostructure. The polymeric molds with the depths of 300 and 500 nm revealed the amalgamated structures in their apexes. In addition, a dip-imprinting process of the polymeric layers was implemented to yield a concaved mold by assembly on the surface of the 100 nm embossed polymer mold substrate. Considering that the embossed structures may be crumbled due to their protuberant shapes, the concaved geometries can have an advantage of stability in a certain application concerning physical degradation along with a higher transmission by ~2%, despite somewhat nonuniform structure. The experimental and theoretical results of this study indicate that this polymer layer has the potential for use in anti-reflective coating applications in transparent films.
Collapse
Affiliation(s)
- Soon Hyuk Lim
- Department of Chemistry, Gachon University, Seongnam 13120, Korea; (S.H.L.); (N.H.L.); (J.A.L.); (J.E.K.)
| | - Nguyễn Hoàng Ly
- Department of Chemistry, Gachon University, Seongnam 13120, Korea; (S.H.L.); (N.H.L.); (J.A.L.); (J.E.K.)
| | - Jung A. Lee
- Department of Chemistry, Gachon University, Seongnam 13120, Korea; (S.H.L.); (N.H.L.); (J.A.L.); (J.E.K.)
| | - Ji Eun Kim
- Department of Chemistry, Gachon University, Seongnam 13120, Korea; (S.H.L.); (N.H.L.); (J.A.L.); (J.E.K.)
| | - Se-Woong La
- Department of Chemistry, Soongsil University, Seoul 06978, Korea; (S.-W.L.); (V.T.H.); (T.-G.T.); (N.T.H.)
| | - Vu Thi Huong
- Department of Chemistry, Soongsil University, Seoul 06978, Korea; (S.-W.L.); (V.T.H.); (T.-G.T.); (N.T.H.)
| | - Thi-Giang Tran
- Department of Chemistry, Soongsil University, Seoul 06978, Korea; (S.-W.L.); (V.T.H.); (T.-G.T.); (N.T.H.)
| | - Ngoc Thanh Ho
- Department of Chemistry, Soongsil University, Seoul 06978, Korea; (S.-W.L.); (V.T.H.); (T.-G.T.); (N.T.H.)
| | - Seung Man Noh
- Research Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, Korea
- Correspondence: (S.M.N.); (S.J.S.); (S.-W.J.); Tel.: +82-2-820-0434 (S.-W.J.)
| | - Sang Jun Son
- Department of Chemistry, Gachon University, Seongnam 13120, Korea; (S.H.L.); (N.H.L.); (J.A.L.); (J.E.K.)
- Correspondence: (S.M.N.); (S.J.S.); (S.-W.J.); Tel.: +82-2-820-0434 (S.-W.J.)
| | - Sang-Woo Joo
- Department of Chemistry, Soongsil University, Seoul 06978, Korea; (S.-W.L.); (V.T.H.); (T.-G.T.); (N.T.H.)
- Correspondence: (S.M.N.); (S.J.S.); (S.-W.J.); Tel.: +82-2-820-0434 (S.-W.J.)
| |
Collapse
|
8
|
Maleki F, Gholami M, Torkaman R, Torab-Mostaedi M, Asadollahzadeh M. Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiation. Sci Rep 2021; 11:18317. [PMID: 34526607 PMCID: PMC8443739 DOI: 10.1038/s41598-021-97826-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 08/31/2021] [Indexed: 12/18/2022] Open
Abstract
Nowadays, radiation grafting polymer adsorbents have been widely developed due to their advantages, such as low operating cost, high efficiency. In this research, glycidyl methacrylate monomers were grafted on polypropylene polymer fibers by simultaneous irradiation of gamma-ray with a dose of 20 kGy. The grafted polymer was then modified using different amino groups and tested for adsorption of cobalt ions in an aqueous solution. Finally, the modified polymer adsorbent with a high efficiency for cobalt ions adsorption was synthesized and tested. Different modes of cobalt ions adsorption were tested in other adsorption conditions, including adsorption contact time, pH, different amounts of adsorbent mass, and different concentrations of cobalt ions solution. The adsorbent structure was characterized with FT-IR, XRD, TG and SEM techniques and illustrated having an efficient grafting percentage and adsorption capability for cobalt removing by batch experiments. The optimum conditions were obtained by a central composite design: adsorbent mass = 0.07 g, initial concentration = 40 mg/L, time = 182 min, and pH = 4.5 with ethylenediamine as a modified monomer and high amination percentage. Kinetics and equilibrium isotherms observation described that the experimental data followed pseudo-second-order and Langmuir models, respectively. The maximum adsorption capacity from Langmuir isotherm capacity is obtained equal to 68.02 mg/g.
Collapse
Affiliation(s)
- Fatemeh Maleki
- Nuclear Engineering Department, Shahid Beheshti University, Tehran, Iran
| | - Mobina Gholami
- Nuclear Engineering Department, Shahid Beheshti University, Tehran, Iran
| | - Rezvan Torkaman
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-8486, Tehran, Iran
| | - Meisam Torab-Mostaedi
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-8486, Tehran, Iran
| | - Mehdi Asadollahzadeh
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-8486, Tehran, Iran.
| |
Collapse
|
9
|
Wang Z, Wang X, Li X, Zhang H, Wei J, Zhou Y. Effect of structure matching in the adsorption process: The preparation of alkylbenzene-functionalized polypropylene nonwoven using surface modification for adsorbing nonylphenol. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
10
|
Mohamad NA, Nasef MM, Nia PM, Zubair NA, Ahmad A, Abdullah TAT, Ali RR. Tetraethylenepentamine-containing adsorbent with optimized amination efficiency based on grafted polyolefin microfibrous substrate for CO2 adsorption. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
11
|
Experimental validation and molecular dynamics simulation of removal of PO residue on Co surface by alkaline cleaning solution with different functional groups. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125932] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
12
|
Adsorption Evaluation for the Removal of Nickel, Mercury, and Barium Ions from Single-Component and Mixtures of Aqueous Solutions by Using an Optimized Biobased Chitosan Derivative. Polymers (Basel) 2021; 13:polym13020232. [PMID: 33440888 PMCID: PMC7827732 DOI: 10.3390/polym13020232] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 12/16/2022] Open
Abstract
In this experimental study, the use of 5-hydroxymethyl-furfural (HMF) organic compound as a grafting agent to chitosan natural polymer (CS) was examined. One optimized chitosan derivative was synthesized, and then tested (CS-HMF), in order to uptake nickel, mercury, and barium metal ions from single- and triple-component (multi-component) aqueous solutions. The characterization of the material before and after the metal uptake was achieved by scanning electron microscopy (SEM). The ability of the adsorption of CS-HMF was tested at pH = 6. The adjusting of temperature from 25 to 65 °C caused the increase in the adsorption capacity. The equilibrium data were fitted to the models of Langmuir and Freundlich, while the data from kinetic experiments were fitted to pseudo-1st and pseudo-2nd order models. The best fitting was achieved for the Langmuir model (higher R2). The adsorption capacity for nickel, mercury, and barium removal at 25 °C (single component) was 147, 107, and 64 (mg/g), respectively. However, the total adsorption capacity for the multi-component was 204 mg/g. A thermodynamic study was also done, and the values of ΔG0, ΔH0, and ΔS0 were evaluated.
Collapse
|
13
|
Mohammadi L, Rahdar A, Khaksefidi R, Ghamkhari A, Fytianos G, Kyzas GZ. Polystyrene Magnetic Nanocomposites as Antibiotic Adsorbents. Polymers (Basel) 2020; 12:E1313. [PMID: 32526844 PMCID: PMC7362001 DOI: 10.3390/polym12061313] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 12/23/2022] Open
Abstract
There are different ways for antibiotics to enter the aquatic environment, with wastewater treatment plants (WWTP) considered to be one of the main points of entrance. Even treated wastewater effluent can contain antibiotics, since WWTP cannot eliminate the presence of antibiotics. Therefore, adsorption can be a sustainable option, compared to other tertiary treatments. In this direction, a versatile synthesis of poly(styrene-block-acrylic acid) diblock copolymer/Fe3O4 magnetic nanocomposite (abbreviated as P(St-b-AAc)/Fe3O4)) was achieved for environmental applications, and particularly for the removal of antibiotic compounds. For this reason, the synthesis of the P(St-b-AAc) diblock copolymer was conducted with a reversible addition fragmentation transfer (RAFT) method. Monodisperse superparamagnetic nanocomposite with carboxylic acid groups of acrylic acid was adsorbed on the surface of Fe3O4 nanoparticles. The nanocomposites were characterized with scanning electron microscopy (SEM), X-ray diffraction (XRD) and vibrating sample magnetometer (VSM) analysis. Then, the nanoparticles were applied to remove ciprofloxacin (antibiotic drug compound) from aqueous solutions. The effects of various parameters, such as initial drug concentration, solution pH, adsorbent dosage, and contact time on the process were extensively studied. Operational parameters and their efficacy in the removal of Ciprofloxacin were studied. Kinetic and adsorption isothermal studies were also carried out. The maximum removal efficiency of ciprofloxacin (97.5%) was found at an initial concentration of 5 mg/L, pH 7, adsorbent's dosage 2 mg/L, contact time equal to 37.5 min. The initial concentration of antibiotic and the dose of the adsorbent presented the highest impact on efficiency. The adsorption of ciprofloxacin was better fitted to Langmuir isotherm (R2 = 0.9995), while the kinetics were better fitted to second-order kinetic equation (R2 = 0.9973).
Collapse
Affiliation(s)
- Leili Mohammadi
- PhD of Environmental Health, Infectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran;
| | - Abbas Rahdar
- Department of Physics, Faculty of Science, University of Zabol, Zabol 538-98615, Iran
| | - Razieh Khaksefidi
- Department of Environmental Health, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran;
| | - Aliyeh Ghamkhari
- Institute of Polymeric Materials, Faculty of Polymer Engineering, Sahand University of Technology, Tabriz 51335-1996, Iran;
| | - Georgios Fytianos
- Department of Chemistry, International Hellenic University, Kavala 65404, Greece;
| | - George Z. Kyzas
- Department of Chemistry, International Hellenic University, Kavala 65404, Greece;
| |
Collapse
|
14
|
Chitosan Grafted with Biobased 5-Hydroxymethyl-Furfural as Adsorbent for Copper and Cadmium Ions Removal. Polymers (Basel) 2020; 12:polym12051173. [PMID: 32443800 PMCID: PMC7285093 DOI: 10.3390/polym12051173] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/17/2020] [Accepted: 05/19/2020] [Indexed: 11/20/2022] Open
Abstract
This work investigates the application of 5-hydroxymethyl-furfural (HMF) as a grafting agent to chitosan (CS). The material produced was further modified by cross-linking. Three different derivatives were tested with molecular ratios CS/HMF of 1:1 (CS-HMF1), 2:1 (CS-HMF2) and 10:1 mol/mol (CS-HMF3)) to remove Cu2+ and Cd2+ from aqueous solutions. CS-HMF derivatives were characterized both before, and after, metal ions adsorption by using scanning electron microscopy (SEM), as well as Fourier-transform infrared (FTIR) spectroscopy thermogravimetric analysis (TGA), and X-Ray diffraction analysis (XRD). The CS-HMF derivatives were tested at pH = 5 and showed higher adsorption capacity with the increase of temperature. Also, the equilibrium data were fitted to Langmuir (best fitting) and Freundlich model, while the kinetic data to pseudo-first (best fitting) and pseudo-second order equations. The Langmuir model fitted better (higher R2) the equilibrium data than the Freundlich equation. By increasing the HMF grafting from 130% (CS-HMF1) to 310% (CS-HMF3), an increase of 24% (26 m/g) was observed for Cu2+ adsorption and 19% (20 mg/g) for Cd2+. By increasing from T = 25 to 65 °C, an increase of the adsorption capacity (metal uptake) was observed. Ten reuse cycles were successfully carried out without significant loss of adsorption ability. The reuse potential was higher of Cd2+, but more stable desorption reuse ability during all cycles for Cu2+.
Collapse
|