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Pan L, Liu Z, Hernandez MV, Schroeder BC, Sun Y, Faul CFJ. Polyaniline-Based Cationic Porous Organic Polymers for Fast and Efficient Anion-Exchange-Driven Capture of Cr 2O 7 2. ACS APPLIED POLYMER MATERIALS 2024; 6:6416-6424. [PMID: 38903399 PMCID: PMC11186002 DOI: 10.1021/acsapm.4c00658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 06/22/2024]
Abstract
Efficient treatment of wastewater contaminated with carcinogenic Cr(VI) has been a long-term challenge for both academic and industrial research efforts. Removal of Cr(VI) species by ion exchange is a relatively simple and efficient method, and its combination with highly tailorable nanomaterials is promising for the treatment of such wastewater. Here, we report a type of cationic porous organic polymer (POP), namely, PTPA-PIP, which can be prepared simply by converting the corresponding aromatic polyamine PTPA to its protonated form, thereby significantly increasing its hydrophilicity and ability to disperse homogeneously in water, crucial for application in water treatment. In addition to detailed characterization of the physicochemical properties of PTPA-PIP (including using Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET), and solid-state NMR techniques), adsorption experiments demonstrate that PTPA-PIP removes low-concentration dichromate anions with very high performance, including excellent exchange capacity (maximum capacity of 230 mg Cr2O7 2-/g PTPA-PIP), ultrafast removal (initial adsorption rate of 83 mg g-1 min-1), excellent selectivity (∼10% loss of adsorption capacity in the presence of 40-fold concentration of competing anions), as well as superior reusability (reusable for at least 5 cycles without compromised performance). These results demonstrate that PTPA-PIP is an outstanding candidate for application in industrial settings for the effective removal of harmful Cr(VI) pollutants in wastewater.
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Affiliation(s)
- Long Pan
- School
of Chemistry, University of Bristol, Bristol, England BS8 1TS, U.K.
- Institute
for Advanced Pharmaceutical Materials, Asymchem
Life Sciences (Tianjin) Co., Ltd., No.265 South Avenue, TEDA, Tianjin 300462, P. R. China
| | - Zilu Liu
- Department
of Chemistry, University College London, London WC1H 0AJ, U.K.
| | | | - Bob C. Schroeder
- Department
of Chemistry, University College London, London WC1H 0AJ, U.K.
| | - Yuchen Sun
- Institute
for Advanced Pharmaceutical Materials, Asymchem
Life Sciences (Tianjin) Co., Ltd., No.265 South Avenue, TEDA, Tianjin 300462, P. R. China
| | - Charl F. J. Faul
- School
of Chemistry, University of Bristol, Bristol, England BS8 1TS, U.K.
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2
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Peng Q, Zhao H, Chen G, Yang Q, Cao X, Xiong S, Xiao A, Li G, Liu B, Liu Q. Synthesis of novel magnetic pitch-based hypercrosslinked polymers as adsorbents for effective recovery of Ag + with high selectivity. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 339:117763. [PMID: 37031597 DOI: 10.1016/j.jenvman.2023.117763] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/04/2023] [Accepted: 03/17/2023] [Indexed: 05/03/2023]
Abstract
Silver is an important precious metal with superior ductility, electrical and thermal conductivity, photosensitivity, and antibacterial properties. However, without proper recycling and treatment, silver emissions may pose a threat to the human health and subsistence environment due to their toxicity. Therefore, it is environmentally and economically important to recover Ag from waste electronic equipment and anode slime. Herein, carboxyl functionalized modified magnetic nanoparticles (Fe3O4@3-phenylglutaricacid nanoparticles) were designed and prepared to obtain the low-cost magnetic pitch-based HCP adsorbents (MPHCP and P-MPHCP). The novelty of present work is that superior adsorption capacity and magnetic responsiveness of adsorbent can be obtained by a simple one-step Friedel-Crafts reaction with very low-cost raw material. The maximum Ag+ adsorption capacity of MPHCP and P-MPHCP were 321 and 353 mg/g, respectively. The adsorption was completed within a short duration of 15 min for MPHCP and P-MPHCP at an initial Ag+ concentration of 100 mg/L. Moreover, the most selective is P-MPHCP wherein Ag+ is α = 61 times more selective than Pb2+ at a concentration of 100 mg/L.The adsorption capacity of MPHCP and P-MPHCP towards Ag+ still maintains above 89% after ten cycles of adsorption-desorption. This study not only provides new guidance for the development of porous polymeric adsorbents but also provides technical feasibility for the field of recovery and reutilization of precious metals, which has a very extensive practical application prospect.
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Affiliation(s)
- Qi Peng
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Hongwei Zhao
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China; Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Guang Chen
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Qilin Yang
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Xinxiu Cao
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China; Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Shaohui Xiong
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China; Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Anguo Xiao
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China; Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde, 415000, China.
| | - Gen Li
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China; Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Bo Liu
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China; Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde, 415000, China
| | - Qingquan Liu
- School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China; Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan, 411201, China.
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3
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Moradi MR, Torkashvand A, Ramezanipour Penchah H, Ghaemi A. Amine functionalized benzene based hypercrosslinked polymer as an adsorbent for CO 2/N 2 adsorption. Sci Rep 2023; 13:9214. [PMID: 37280347 DOI: 10.1038/s41598-023-36434-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 06/03/2023] [Indexed: 06/08/2023] Open
Abstract
In this work, benzene based hypercrosslinked polymer (HCP) as an adsorbent was modified using amine group to enhance CO2 uptake capability and selectivity. Based on BET analysis result, the HCP and the modified HCP provide surface area of 806 (m2 g-1) and micropore volume of 453 (m2 g-1) and 0.19 (cm3 g-1) and 0.14 (cm3 g-1), respectively. The CO2 and N2 gases adsorption were performed in a laboratory scale reactor at a temperature between 298 and 328 K and pressure up to 9 bar. The experimental data were evaluated using isotherm, kinetic and thermodynamic models to identify the absorbent behavior. The maximum CO2 adsorption capacity at 298 K and 9 bar was obtained 301.67 (mg g-1) for HCP and 414.41 (mg g-1) for amine modified HCP. The CO2 adsorption thermodynamic parameters assessment including enthalpy changes, entropy changes, and Gibbs free energy changes at 298 K were resulted - 14.852 (kJ mol-1), - 0.024 (kJ mol-1 K-1), - 7.597 (kJ mol-1) for HCP and - 17.498 (kJ mol-1), - 0.029(kJ mol-1 K-1), - 8.9 (kJ mol-1) for amine functionalized HCP, respectively. Finally, the selectivity of the samples were calculated at a CO2/N2 composition of 15:85 (v/v) and 43% enhancement in adsorption selectivity at 298 K was obtained for amine modified HCP.
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Affiliation(s)
- Mohammad Reza Moradi
- School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, PO Box 16846-13114, Tehran, Iran
| | - Alireza Torkashvand
- School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, PO Box 16846-13114, Tehran, Iran
| | - Hamid Ramezanipour Penchah
- School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, PO Box 16846-13114, Tehran, Iran
| | - Ahad Ghaemi
- School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, PO Box 16846-13114, Tehran, Iran.
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4
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He X, Xia J, He J, Qi K, Peng A, Liu Y. Highly Efficient Capture of Heavy Metal Ions on Amine-Functionalized Porous Polymer Gels. Gels 2023; 9:gels9040297. [PMID: 37102909 PMCID: PMC10137378 DOI: 10.3390/gels9040297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 04/05/2023] Open
Abstract
Porous polymer gels (PPGs) are characterized by inherent porosity, a predictable structure, and tunable functionality, which makes them promising for the heavy metal ion trap in environmental remediation. However, their real-world application is obstructed by the balance between performance and economy in material preparation. Development of an efficient and cost-effective approach to produce PPGs with task-specific functionality remains a significant challenge. Here, a two-step strategy to fabricate amine-enriched PPGs, NUT-21-TETA (NUT means Nanjing Tech University, TETA indicates triethylenetetramine), is reported for the first time. The NUT-21-TETA was synthesized through a simple nucleophilic substitution using two readily available and low-cost monomers, mesitylene and α, α′-dichloro-p-xylene, followed by the successful post-synthetic amine functionalization. The obtained NUT-21-TETA demonstrates an extremely high Pb2+ capacity from aqueous solution. The maximum Pb2+ capacity, qm, assessed by the Langmuir model was as high as 1211 mg/g, which is much higher than most benchmark adsorbents including ZIF-8 (1120 mg/g), FGO (842 mg/g), 732-CR resin (397 mg/g), Zeolite 13X (541 mg/g), and AC (58 mg/g). The NUT-21-TETA can be regenerated easily and recycled five times without a noticeable decrease of adsorption capacity. The excellent Pb2+ uptake and perfect reusability, in combination with a low synthesis cost, gives the NUT-21-TETA a strong potential for heavy metal ion removal.
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Affiliation(s)
- Xue He
- College of Pharmacy, Dali University, Dali 671003, China
| | - Jumu Xia
- College of Pharmacy, Dali University, Dali 671003, China
| | - Jieli He
- College of Pharmacy, Dali University, Dali 671003, China
| | - Kezhen Qi
- College of Pharmacy, Dali University, Dali 671003, China
| | - Anzhong Peng
- College of Pharmacy, Dali University, Dali 671003, China
| | - Yong Liu
- College of Pharmacy, Dali University, Dali 671003, China
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5
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Sowmya P, Prakash S, Joseph A. Adsorption of heavy metal ions by thiophene containing mesoporous polymers: An experimental and theoretical study. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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6
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Adsorption behaviours of copper(II), lead(II), and cadmium(II) ions from aqueous solution by polyethylenimine -modified magnetic hydrogel nanocomposites. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03377-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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The experimental/theoretical study over the effect of using the POP-NH2 nanostructures into the membrane selective layer on the CO2 permeability and selectivity. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.08.057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Sayed MM, Abd El-Hamid IS, M El-Bery H, Farrag M, Abdelhakiem AK, Aly KI. Synthesis, characterization and application of high adsorption performance of novel 1,4-polyketone. Sci Rep 2022; 12:16317. [PMID: 36175463 PMCID: PMC9523028 DOI: 10.1038/s41598-022-20686-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/16/2022] [Indexed: 11/17/2022] Open
Abstract
This study aims to develop an alternating polyketone containing cationic groups in one and four alternating positions for increased functionality. A novel polyarylidene ketone was synthesized using simple condensation polymerization of terephthaldehyde and 2,5-hexane dione (PAK) The physicochemical properties of the resulting polymer were evaluated using Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, UV-Visible absorbance, fluorescence, and SEM investigations. The findings show that the polymer is amorphous, has good thermal stability, and emits red light. It can also be used as a dye adsorbent in aqueous solutions, with high selectivity for the cationic dye methylene blue (MB). The adsorbent efficiency of PAK was measured as a function of pH, dosage, and initial dye concentration; the greatest dye removal of 96 % was obtained at pH 10, 50 mg dosage, and initial dye concentration of 20 ppm. Kinetics and isotherms were studied, showing that the pseudo-second-order model described kinetic data better than Freundlich and Langmuir and revealed a satisfactory chemisorption process. This study suggests that PAK can purify MB dyeing wastewater, remove Zn2+, Cu2+, Ni2+, Co2+, Cd2+, Fe3+ metal ions well, and is selective for Fe3+ and Cu2+; ion adsorption is chelating-based.
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Affiliation(s)
- Marwa M Sayed
- Chemistry Department, Faculty of Science, The New Valley University, El-Kharja, 72511, Egypt.
| | - Islam S Abd El-Hamid
- Polymer Research Laboratory, Chemistry Department, Faculty of Science, Assiut University, Asyut, 71516, Egypt.,Assiut Cement Company (Cemex Egypt), 18th Assiut- Elwadi Road, Asyut, Egypt
| | - Haitham M El-Bery
- Advanced Multifunctional Materials Laboratory, Chemistry Department, Faculty of Science, Assiut University, Asyut, 71515, Egypt
| | - Mostafa Farrag
- Nanoclusters and Photocatalysis Laboratory, Chemistry Department, Faculty of Science, Assiut University, Asyut, 71515, Egypt
| | - Alaa K Abdelhakiem
- Department of Pharmacy Practice and Clinical Sciences, University of Texas at El Paso School of Pharmacy, El Paso, TX, USA
| | - Kamal I Aly
- Polymer Research Laboratory, Chemistry Department, Faculty of Science, Assiut University, Asyut, 71516, Egypt.
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9
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Licona-Aguilar ÁI, Torres-Huerta AM, Domínguez-Crespo MA, Palma-Ramírez D, Conde-Barajas E, Negrete-Rodríguez MXL, Rodríguez-Salazar AE, García-Zaleta DS. Reutilization of waste biomass from sugarcane bagasse and orange peel to obtain carbon foams: Applications in the metal ions removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 831:154883. [PMID: 35358521 DOI: 10.1016/j.scitotenv.2022.154883] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
The high levels of heavy metals contained in residual water and the pollution generated by a large amount of unexploited agro-industrial waste are a serious problem for the environment and mankind. Therefore, in the present work, with the aim of treating and reducing the pollution caused by heavy metal ions (Pb, Cd, Zn and Cu), activated carbons (ACs) were synthesized from sugarcane bagasse (SCB) and orange peel (OP) by means of physical - chemical activation method in an acid medium (H3PO4, 85 wt%) followed by an activation at high temperature (500 and 700 °C). Thereafter, these materials were used to produce carbon foams (CF) by the replica method and to evaluate their adsorbent capacity for the removal of heavy metals from synthetic water. XRD, FTIR, DLS, BET, Zeta Potential (ζ), SEM-EDS and AAS were used to investigate their structures, surface area, pore size, morphology, and adsorption capacity. The results show that as-prepared CF have a second level mesoporous structure and AC present a micro-mesoporous structure with a pore diameter between 3 and 4 nm. The experimental adsorption capacities of heavy metals showed that the CF from OP present a better elimination of heavy metals compared to the AC; exhibiting a removal capacity of 95.2 ± 3.96% (Pb) and 94.7 ± 4.88% (Cu) at pH = 5. The adsorption values showed that the optimal parameters to reach a high metal removal are pH values above 5. In the best of cases, the minimum remaining concentration of lead and copper were 2.4 and 2.6 mg L-1, respectively. The experimental data for carbon adsorbents are in accordance with the Langmuir and BET isotherms, with R2 = 0.99 and the maximum homogenous biosorption capacity for lead and copper was Qmax = 968.72 and 754.14 mg g-1, respectively. This study showed that agro-industrial wastes can be effectively retrieved to produce adsorbents materials for wastewater treatment applications.
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Affiliation(s)
- Á I Licona-Aguilar
- Instituto Politécnico Nacional, CICATA-Altamira, CIAMS. km 14.5 carretera Tampico-Puerto Industrial Altamira, Mexico
| | - A M Torres-Huerta
- Instituto Politécnico Nacional, UPIIH, Ciudad del conocimiento y la cultura, Carretera Pachuca-Actopan km. 1+500 San Agustin Tlaxiaca, C.P. 42162, Hidalgo, Mexico.
| | - M A Domínguez-Crespo
- Instituto Politécnico Nacional, UPIIH, Ciudad del conocimiento y la cultura, Carretera Pachuca-Actopan km. 1+500 San Agustin Tlaxiaca, C.P. 42162, Hidalgo, Mexico.
| | - D Palma-Ramírez
- Instituto Politécnico Nacional, Centro Mexicano para la Producción más Limpia (CMPL), Av. Acueducto s/n, la Laguna Ticomán, C.P. 07340 México City, Mexico
| | - E Conde-Barajas
- Laboratory of Environmental Biotechnology, Department Environmental Engineering, TNM/IT de Celaya, Av. Tecnológico y A. García Cubas 600, Celaya 38010 Celaya, Guanajuato, Mexico
| | - M X L Negrete-Rodríguez
- Laboratory of Environmental Biotechnology, Department Environmental Engineering, TNM/IT de Celaya, Av. Tecnológico y A. García Cubas 600, Celaya 38010 Celaya, Guanajuato, Mexico
| | - A E Rodríguez-Salazar
- Instituto Politécnico Nacional, CICATA Querétaro, Cerro Blanco 141, Col. Colinas del Cimatario, C.P. 76090 Santiago de Querétaro, Querétaro, Mexico
| | - D S García-Zaleta
- Universidad Juárez Autónoma de Tabasco, Carretera Estatal Libre Villahermosa-Comalcalco, Km. 27 +000 s/n Ranchería Ribera Alta, C.P. 86205, Tabasco, Mexico
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10
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Wan T, He S, Wang T, Wang J, Yu M, Jia Y, Tang Q. Synthesis of polyethylenimine-modified magnetic hydrogel nanocomposite absorbents for heavy metals removal. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1168-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Wan T, Wang T, Wang J, He S, Tang Q, Yu M, Jia Y. Absorption thermodynamic and kinetics of heavy metals by magnetic hydrogel nanocomposite absorbents with
semi‐interpenetrating networks
structure. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tao Wan
- State Key Lab of Geohazard Prevention & Geoenvironment Protection Chengdu University of Technology Chengdu China
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions Chengdu University of Technology Chengdu China
| | - Tairan Wang
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions Chengdu University of Technology Chengdu China
| | - Jian Wang
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions Chengdu University of Technology Chengdu China
| | - Songsong He
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions Chengdu University of Technology Chengdu China
| | - Qi Tang
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions Chengdu University of Technology Chengdu China
| | - Mingrui Yu
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions Chengdu University of Technology Chengdu China
| | - Yang Jia
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions Chengdu University of Technology Chengdu China
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12
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Facile Synthesis of Polyethylenimine-modified Sugarcane Bagasse Adsorbent for Removal of Anionic Dye in Aqueous Solution. SCIENTIFIC AFRICAN 2022. [DOI: 10.1016/j.sciaf.2022.e01135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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13
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Rahnama Haratbar P, Ghaemi A, Nasiri M. Potential of hypercrosslinked microporous polymer based on carbazole networks for Pb(II) ions removal from aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:15040-15056. [PMID: 34622410 DOI: 10.1007/s11356-021-16603-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
In this research, porous adsorbents of hypercrosslinked microporous polymer based on carbazole networks (HCP-CN) were synthesized for Pb(II) elimination from wastewaters. The results demonstrated that the extreme HCP-CN adsorbents utilization in wastewater treatment could remove more than 99.88% of Pb (II) ions. Furthermore, the two consumed adsorbents similarly indicated rapid adsorption kinetics, and it merely took a while to achieve adsorption equilibrium. These characteristics showed that HCP-CN adsorbent was an outstanding candidate for Pb(II) elimination from wastewater. Besides, the thermodynamic characteristics involving Gibbs free energy change (∆G0), entropy change (∆S0), and enthalpy change (∆H0) of the adsorption procedure were evaluated, and the results affirmed that the adsorption process was exothermic and spontaneous. In addition, response surface methodology (RSM) as a statistical investigation was used to optimize adsorption factors to obtain maximum adsorption capacity and investigate the interactive effect of parameters using central composite design (CCD). Optimum conditions obtained by RSM for maximum adsorption capacity of 26.02 mg/g are 35 °C, 40 mg/L, 11, 60 min, and 99.88 for temperature, initial concentration, pH, time, and removal percent, respectively. In the kinetic modeling study, the second-order model was selected as the best model. The values R2 at temperatures 35 °C, 40 °C, and 55 °C are 0.997, 0.9997, and 0.998, respectively. In the isotherm modeling, Hill model with a value R2 of 0.9766 has a superior precision compared to the other isotherm models. Also, the values of ΔH and ΔS at Pb(II) concentration of 60 mg/L are 122.622 kJ/mol and 0.463 kJ/mole K, respectively.
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Affiliation(s)
| | - Ahad Ghaemi
- School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran.
| | - Masoud Nasiri
- Department of Chemical, Petroleum and Gas Engineering, Semnan University, Semnan, Iran
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14
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Snider VG, Alshehri R, Slaugenhaupt RM, Hill CL. Materials for the Simultaneous Entrapment and Catalytic Aerobic Oxidative Removal of Sulfur Mustard Simulants. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51519-51524. [PMID: 34665594 DOI: 10.1021/acsami.1c15588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Materials that both sequester chemical warfare agents (CWAs) and then catalytically decontaminate the entrapped CWAs are highly sought. This article reports such a system for air-based catalytic removal of the sulfur mustard (HD) simulant, 2-chloroethyl ethyl sulfide (CEES). Hypercrosslinked polymers (HCPs) sequester CEES, and an HCP-embedded oxidation system comprising tribromide, nitrate, and acid (NOxBrxH+) simultaneously catalyzes the aerobic and selective, oxidative conversion of the entrapped CEES to the desired far less-toxic sulfoxide under ambient conditions (air and temperature). (NOxBrxH+) has been incorporated into three HCPs, a fluorobenzene HCP (HCP-F), a methylated HCP (HCP-M), and an HCP with acidic moieties (HCP-A). HCP-A acts as both an absorbing material and a catalytic component due to its acidic side chains. All three HCP/NOxBrxH+ systems work rapidly under these optimally mild conditions. No light or added oxidants are required. The HCP/NOxBrxH+ systems are recyclable.
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Affiliation(s)
- Victoria G Snider
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Rawan Alshehri
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | | | - Craig L Hill
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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15
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Post-synthetic modification of fluorenone based hypercrosslinked porous copolymers for carbon dioxide capture. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122152] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Ai S, Huang Y, Huang C, Yu W, Mao Z. Lead ion adsorption on functionalized sugarcane bagasse prepared by concerted oxidation and deprotonation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:2728-2740. [PMID: 32889656 DOI: 10.1007/s11356-020-10692-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/31/2020] [Indexed: 06/11/2023]
Abstract
Targeting the removal of Pb2+ in wastewater, sugarcane bagasse was treated with nitric acid and an alkaline solution to prepare adsorbents. On a typical adsorbent, the adsorption isotherms agreed well with the Langmuir expression, and the maximum adsorption capacity reached 200.3 mg/g. In the presence of 150 ppm Ca2+, a common cation in natural water, the Pb2+ adsorption capacity slightly declined. In contrast, Mg2+ obviously prohibited the adsorption for Pb2+. The spent adsorbent could be regenerated at least five times through elution with an EDTA solution. EDS and XPS results demonstrated that nitric acid functioned as an oxidant instead of nitrification agent in the treatment of bagasse. The adsorption process was consistent with quasi-second-order kinetics. Based on thermodynamic studies, the changes in enthalpy and Gibbs free energy were calculated to be - 33.3 and ca. - 18 kJ/mol, indicating that the adsorption process was exothermic and spontaneous. The equilibrium Pb2+ adsorption amounts were proportional to the numbers of carboxylate groups on different adsorbents. The binding energies of Pd 4f5/2 and Pd 4f7/2 XPS spectra of Pb2+ adsorbed were 0.6-0.7 eV lower than those of free Pb(NO3)2, indicating the transfer of electrons during adsorption. The conversion of hydroxymethyl groups in sugarcane bagasse into carboxylate groups, as well as the chelation between Pb2+ ions and carboxylate groups, was validated in this work, which is beneficial for the treatment of wastewater polluted by lead ions.
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Affiliation(s)
- Shuo Ai
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China.
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China.
| | - Yongchun Huang
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China
| | - Chengdu Huang
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China
| | - Wanguo Yu
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China
| | - Zhijuan Mao
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China
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17
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Anito DA, Wang TX, Liu ZW, Ding X, Han BH. Iminodiacetic acid-functionalized porous polymer for removal of toxic metal ions from water. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123188. [PMID: 32947749 DOI: 10.1016/j.jhazmat.2020.123188] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/07/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
The design of efficient adsorbent with abundant binding sites for heavy metal ions is crucial for developing innovative materials that will remove pollutant metal ions. The high uptake capacity, kinetics, and affinity towards the toxic metals are the key requirements that the materials under invesigation should accomplish. Here we report the synthesis of iminodiacetic acid-functionalized hypercrosslinked polymer (IDA-HCP) for purification of water polluted by toxic metal ions via coordination of carboxylate and amino active sites on the surface of porous polymer. The obtained porous polymer is stable under harsh conditions and the structural features on the polymer work together to help the removal of Pb(II) with 1138 mg g-1 uptake capacity. In the meanwhile, the IDA-HCP reveals reuseability and very promising capture efficiency not only for Pb2+, but also for Hg2+ and Cd2+ from a mixture of Pb2+, Hg2+, Cd2+, Co2+, Fe3+, Zn2+, Mg2+, and Na+ metal ions. This result gives us confidence that the polymer material can solve the pollution problem caused by various metal ions.
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Affiliation(s)
- Dejene Assefa Anito
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China
| | - Tian-Xiong Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China
| | - Zhi-Wei Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China
| | - Xuesong Ding
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.
| | - Bao-Hang Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China; University of Chinese Academy of Science, Beijing, 100049, China.
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18
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Ali Z, Ahmad R, Farooq WA, Khan A, Khan AA, Bibi S, Adalat B, Almutairi MA, Yaqub N, Atif M. Synthesis and Characterization of Functionalized Nanosilica for Zinc Ion Mitigation; Experimental and Computational Investigations. Molecules 2020; 25:molecules25235534. [PMID: 33255844 PMCID: PMC7728340 DOI: 10.3390/molecules25235534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 11/16/2022] Open
Abstract
Zinc is an essential trace metal and its concentration above 4ppm reduces the aesthetic value of water. This study explores the possibility of using functionalized nanohybrids as Zn(II) ion scavengers from aqueous solution. Functionalized nanohybrids were synthesized by the attachment of thiosemicarbazide to silica. The material was characterized by TGA, SEM, FTIR, EDX, and BET analysis, which revealed ligand bonding to silica. The functionalized silica was employed as Zn(II) ion extractant in batch experiments and removed about 94.5% of the Zn(II) ions at pH 7, near zero point charge (6.5) in 30 min. Kinetics investigations revealed that zinc adsorption follows an intra particle diffusion mechanism and first-order kinetics (K = 0.1020 min−1). The data were fitted to Freundlich, Dubinin–Radushkevich, and Langmuir models and useful ion exchange parameters were determined. The impact of co-existing ions on Zn(II) ion sequestration was also studied and it was found that the adsorbent can be used for selective removal of zinc with various ions in the matrix. Quantum mechanical investigations revealed that the Zn(II) ion adsorption on ZnBS1 is more favorable, having higher binding energy (BE) (−178.1 kcal/mol) and ∆H (−169.8), and making tridentate complex with the N and S sites of the chelating ligand. The negative ∆G and BE values suggest highly spontaneous Zn(II) adsorption on the modified silica even at low temperatures.
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Affiliation(s)
- Zarshad Ali
- Department of Chemistry, Hazara University, Mansehra 21300, Khyber Pakhtunkhwa, Pakistan; (Z.A.); (S.B.); (B.A.)
| | - Rashid Ahmad
- Department of Chemistry, University of Malakand, Chakdara 18800, Dir Lower, Pakistan; (R.A.); (A.A.K.)
- Chemistry Division, PINSTECH, PO Nilore 45650, Islamabad, Pakistan;
| | - W. Aslam Farooq
- Department of Physics, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.A.A.); (N.Y.); (M.A.)
- Correspondence:
| | - Aslam Khan
- Chemistry Division, PINSTECH, PO Nilore 45650, Islamabad, Pakistan;
| | - Adnan Ali Khan
- Department of Chemistry, University of Malakand, Chakdara 18800, Dir Lower, Pakistan; (R.A.); (A.A.K.)
| | - Saira Bibi
- Department of Chemistry, Hazara University, Mansehra 21300, Khyber Pakhtunkhwa, Pakistan; (Z.A.); (S.B.); (B.A.)
| | - Bushra Adalat
- Department of Chemistry, Hazara University, Mansehra 21300, Khyber Pakhtunkhwa, Pakistan; (Z.A.); (S.B.); (B.A.)
| | - Mona A. Almutairi
- Department of Physics, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.A.A.); (N.Y.); (M.A.)
| | - Nafeesah Yaqub
- Department of Physics, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.A.A.); (N.Y.); (M.A.)
| | - Muhammad Atif
- Department of Physics, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.A.A.); (N.Y.); (M.A.)
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Zeng Q, Huang Y, Huang L, Hu L, Sun W, Zhong H, He Z. High adsorption capacity and super selectivity for Pb(Ⅱ) by a novel adsorbent: Nano humboldtine/almandine composite prepared from natural almandine. CHEMOSPHERE 2020; 253:126650. [PMID: 32268252 DOI: 10.1016/j.chemosphere.2020.126650] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/26/2020] [Accepted: 03/29/2020] [Indexed: 05/19/2023]
Abstract
This study firstly reported a novel nano humboldtine/almandine composite (NHLA composite) prepared directly from almandine through one-pot method based on the interaction of almandine and oxalic acid. The formation of humboldtine/almandine binary phase from natural almandine was determined by X-ray diffraction. Analysis of scanning & transmission electron microscope showed that large amount of nano humboldtine with uniform size (average size of 15.59 nm) were loaded on the almandine sheets. Compared with raw minerals, Pb(Ⅱ) removal capacity of synthesized composite was significantly increased, demonstrating that the main active ingredient for Pb(Ⅱ) removal was humboldtine phase rather than almandine itself. Pb(Ⅱ) adsorption capacity was increased with the increasing of initial pH value or temperature. Langmuir isotherm and Pseudo-second order kinetic equation were well fitted with experimental results and the maximum Pb(Ⅱ) adsorption capacity from Langmuir isotherm was 574.71 mg/g at temperature of 25 °C. In addition, heavy metal removal experiments in coexisting systems of multiple heavy metal ions manifested that the composite had a high selectivity for Pb(Ⅱ) adsorption. Ion exchange, surface complexation and electrostatic interaction have involved in the Pb(Ⅱ) adsorption. The synthesized composite was considered as a low cost, high efficiency, super selectivity and easy to mass production material for Pb(Ⅱ) adsorption from solution.
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Affiliation(s)
- Qiang Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Yongji Huang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Leiming Huang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Liang Hu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Wei Sun
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Hui Zhong
- School of Life Sciences, Central South University, Changsha, 410083, China.
| | - Zhiguo He
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China.
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20
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Chae SK, Cho K, Lee SM, Kim HJ, Ko YJ, Son SU. AB2 polymerization on hollow microporous organic polymers: engineering of solid acid catalysts for the synthesis of soluble cellulose derivatives. Polym Chem 2020. [DOI: 10.1039/c9py01615e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New post-synthetic functionalization of hollow microporous organic polymers was developed based on AB2 polymerization and thiol–yne click reaction.
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Affiliation(s)
- Su Kyung Chae
- Department of Chemistry
- Sungkyunkwan University
- Suwon 16419
- Korea
| | - Kyoungil Cho
- Department of Chemistry
- Sungkyunkwan University
- Suwon 16419
- Korea
| | | | - Hae Jin Kim
- Korea Basic Science Institute
- Daejeon 34133
- Korea
| | - Yoon-Joo Ko
- Laboratory of Nuclear Magnetic Resonance
- National Center of Inter-University Research Facilities (NCIRF)
- Seoul National University
- Seoul 08826
- Korea
| | - Seung Uk Son
- Department of Chemistry
- Sungkyunkwan University
- Suwon 16419
- Korea
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21
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Bisheh MG, Ghorbani M, Peyravi M, Jahanshahi M. Static and dynamic filtration of nickel and lead ions by adsorptive membrane induced by POP via layer by layer technique. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2019.11.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Liu R, Yang Z, Chen S, Yao J, Mu Q, Peng D, Zhao H. Synthesis and facile functionalization of siloxane based hyper-cross-linked porous polymers and their applications in water treatment. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.07.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Removal of Heavy Metals and Metalloids from Water Using Drinking Water Treatment Residuals as Adsorbents: A Review. MINERALS 2019. [DOI: 10.3390/min9080487] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Heavy metal contamination is one of the most important environmental issues. Therefore, appropriate steps need to be taken to reduce heavy metals and metalloids in water to acceptable levels. Several treatment methods have been developed recently to adsorb these pollutants. This paper reviews the ability of residuals generated as a by-product from the water treatment plants to adsorb heavy metals and metalloids from water. Water treatment residuals have great sorption capacities due to their large specific surface area and chemical composition. Sorption capacity is also affected by sorption conditions. A survey of the literature shows that water treatment residuals may be a suitable material for developing an efficient adsorbent for the removal of heavy metals and metalloids from water.
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24
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Mokhtari N, Dinari M, Rahmanian O. Novel porous organic triazine‐based polyimide with high nitrogen levels for highly efficient removal of Ni(II) from aqueous solution. POLYM INT 2019. [DOI: 10.1002/pi.5810] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Nazanin Mokhtari
- Department of ChemistryIsfahan University of Technology Isfahan Iran
| | - Mohammad Dinari
- Department of ChemistryIsfahan University of Technology Isfahan Iran
| | - Omid Rahmanian
- Department of Environmental Health, Faculty of HealthHormozgan University of Medical Sciences Bandar Abbas Iran
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25
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Al'Abri AM, Mohamad S, Abdul Halim SN, Abu Bakar NK. Development of magnetic porous coordination polymer adsorbent for the removal and preconcentration of Pb(II) from environmental water samples. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:11410-11426. [PMID: 30805837 DOI: 10.1007/s11356-019-04467-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 02/03/2019] [Indexed: 06/09/2023]
Abstract
A novel porous coordination polymer adsorbent (BTCA-P-Cu-CP) based on a piperazine(P) as a ligand and 1,2,4,5-benzenetetracarboxylic acid (BTCA) as a linker was synthesized and magnetized to form magnetic porous coordination polymer (BTCA-P-Cu-MCP). Fourier transform infrared (FTIR), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), field emission scanning electron microscope(FESEM), energy-dispersive X-ray spectroscopy(EDS), CHN, and Brunauer-Emmett-Teller(BET) analysis were used to characterize the synthesized adsorbent. BTCA-P-Cu-MCP was used for removal and preconcentration of Pb(II) ions from environmental water samples prior to flame atomic absorption spectrometry(FAAS) analysis. The maximum adsorption capacity of BTCA-P-Cu-MCP was 582 mg g-1. Adsorption isotherm, kinetic, and thermodynamic parameters were investigated for Pb(II) ions adsorption. Magnetic solid phase extraction (MSPE) method was used for preconcentration of Pb(II) ions and the parameters influencing the preconcentration process have been examined. The linearity range of proposed method was 0.1-100 μg L-1 with a preconcentration factor of 100. The limits of detection and limits of quantification for lead were 0.03 μg L-1 and 0.11 μg L-1, respectively. The intra-day (n = 7) and inter-day (n = 3) relative standard deviations (RSDs) were 1.54 and 3.43% respectively. The recoveries from 94.75 ± 4 to 100.93 ± 1.9% were obtained for rapid extraction of trace levels of Pb(II) ions in different water samples. The results showed that the BTCA-P-Cu-MCP was steady and effective adsorbent for the decontamination and preconcentration of lead ions from the aqueous environment.
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Affiliation(s)
- Aisha Mohammed Al'Abri
- Department of Chemistry, Faculty of Science, University Malaya, 50603, Kuala Lumpur, Malaysia
- Ministry of Education Sultanate of Oman, Muscat, Oman
| | - Sharifah Mohamad
- Department of Chemistry, Faculty of Science, University Malaya, 50603, Kuala Lumpur, Malaysia.
- University Malaya Centre for Ionic Liquids (UMCiL), University Malaya Kuala Lumpur, 50603, Kuala Lumpur, Malaysia.
| | - Siti Nadiah Abdul Halim
- Department of Chemistry, Faculty of Science, University Malaya, 50603, Kuala Lumpur, Malaysia
| | - Nor Kartini Abu Bakar
- Department of Chemistry, Faculty of Science, University Malaya, 50603, Kuala Lumpur, Malaysia
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26
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Sanz-Pérez E, Rodríguez-Jardón L, Arencibia A, Sanz R, Iglesias M, Maya E. Bromine pre-functionalized porous polyphenylenes: New platforms for one-step grafting and applications in reversible CO2 capture. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.02.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Córdova BM, Jacinto CR, Alarcón H, Mejía IM, López RC, de Oliveira Silva D, Cavalheiro ET, Venâncio T, Dávalos JZ, Valderrama A. Chemical modification of sodium alginate with thiosemicarbazide for the removal of Pb(II) and Cd(II) from aqueous solutions. Int J Biol Macromol 2018; 120:2259-2270. [DOI: 10.1016/j.ijbiomac.2018.08.095] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 07/21/2018] [Accepted: 08/20/2018] [Indexed: 01/22/2023]
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28
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Kang DW, Kang M, Moon M, Kim H, Eom S, Choe JH, Lee WR, Hong CS. PDMS-coated hypercrosslinked porous organic polymers modified via double postsynthetic acidifications for ammonia capture. Chem Sci 2018; 9:6871-6877. [PMID: 30310620 PMCID: PMC6114995 DOI: 10.1039/c8sc02640h] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 07/18/2018] [Indexed: 11/22/2022] Open
Abstract
Double postsynthetic acidifications of a hypercrosslinked polymer afforded record high NH3 adsorption capacity per surface area. Its PDMS coating provided an 40-fold enhancement of low-pressure NH3 adsorption capacity and hydrophobicity.
A hypercrosslinked porous organic polymer was modified by post-oxidation and post-sulfonation to obtain a porous platform with a high density of acidic groups. Such an acidified material exhibits record high NH3 adsorption capacity per surface area, fast adsorption rate, and recyclability at low desorption temperature. Noticeably, the coating of the polymer with PDMS represents a facile and efficient route to enable both a significant improvement of low-pressure NH3 adsorption capacity (∼40-fold enhancement; from 0.04 to 1.41 mmol g–1) with respect to the non-modified polymer at 500 ppm and hydrophobicity associated with the selective sorption of NH3 over water vapor (hydrophilic for the non-coated material). This material is easy to prepare, cost-effective, and scalable to mass production.
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Affiliation(s)
- Dong Won Kang
- Department of Chemistry , Korea University , 136-713 Seoul , Republic of Korea .
| | - Minjung Kang
- Department of Chemistry , Korea University , 136-713 Seoul , Republic of Korea .
| | - Minkyu Moon
- Department of Chemistry , Korea University , 136-713 Seoul , Republic of Korea .
| | - Hyojin Kim
- Department of Chemistry , Korea University , 136-713 Seoul , Republic of Korea .
| | - Sunhwi Eom
- Department of Chemistry , Korea University , 136-713 Seoul , Republic of Korea .
| | - Jong Hyeak Choe
- Department of Chemistry , Korea University , 136-713 Seoul , Republic of Korea .
| | - Woo Ram Lee
- Department of Chemistry , Sejong University , Seoul 05006 , Republic of Korea
| | - Chang Seop Hong
- Department of Chemistry , Korea University , 136-713 Seoul , Republic of Korea .
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29
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Wang N, Yang LY, Wang YG, Ouyang XK. Fabrication of Composite Beads Based on Calcium Alginate and Tetraethylenepentamine-Functionalized MIL-101 for Adsorption of Pb(II) from Aqueous Solutions. Polymers (Basel) 2018; 10:polym10070750. [PMID: 30960675 PMCID: PMC6403883 DOI: 10.3390/polym10070750] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/02/2018] [Accepted: 07/05/2018] [Indexed: 11/22/2022] Open
Abstract
In this work, a tetraethylenepentamine (TEPA)-grafted metal-organic framework material (MIL-101) was synthesized. The introduction of TEPA increased the abundance of functional groups on the MIL-101. As a powdery adsorbent, MIL-101-TEPA can be difficult to separate. In order to solve this problem, we combined MIL-101-TEPA with sodium alginate (SA) and injected the mixture into a CaCl2 solution to solidify the powder into beads with a particle size of 3 mm. The easily recovered adsorbent was applied to the adsorption of Pb(II) from water. The structure and characterization of the adsorbent were investigated through scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), X-Ray diffraction (XRD), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). We also optimized the adsorption conditions. The results of the study showed that the adsorption process was chemisorptive and endothermic in nature. The maximum adsorption capacity of the composite beads was 558.6 mg/g. Meanwhile MIL-101-TEPA@CA showed good repeatable utilization.
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Affiliation(s)
- Nan Wang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Li-Ye Yang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Yang-Guang Wang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Xiao-Kun Ouyang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
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30
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Mousavi SJ, Parvini M, Ghorbani M. Experimental design data for the zinc ions adsorption based on mesoporous modified chitosan using central composite design method. Carbohydr Polym 2018. [PMID: 29525157 DOI: 10.1016/j.carbpol.2018.01.105] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In the present study, new generation of silica-based mesoporous adsorbents were introduced for the removal of heavy metals with the aim of developing new adsorption technologies in water treatment. The magnetic nanoadsorbent, prepared by modification of SBA-15 with [3-(2-Aminoethylamino) propyl] trimethoxysilane (AEAPTMS)-functionalized chitosan, was applied for the removal of Zn2+ from aqueous solution. The synthesized Fe2O3@SBA-15-CS-AEAPTMS nanoadsorbent was thoroughly characterized using XRD, TEM, FTIR and BET analysis. In order to determine the optimum condition of Zn2+ adsorption on Fe2O3@SBA-15-CS-AEAPTMS (3 ml), the experiments were performed based on central composite design in a response surface methodology method. The obtained results were further studied using adsorption kinetic, isotherm and thermodynamic relations which revealed that Zn2+ adsorption was spontaneous and endothermic with enhanced adsorption efficiency achieved for higher contents of functional groups. In addition, according to the results, the adsorption process was best conformed to Langmuir isotherm (with R2 > 0.99 and qmax = 107.21 mg g-1) and pseudo second-order kinetic model (with R2 > 0.999). The values of standard entropy (DS°) and activation energy (Ea) reduced as the initial concentration was increased and the dominant mechanism was found to be chemisorption.
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Affiliation(s)
| | | | - Mohsen Ghorbani
- Department of Chemical Engineerng, Babol Noshirvani University of Technolgy, Shariati Ave., Babol, 47148-71167, Iran.
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31
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Yang Z, Huang X, Yao X, Ji H. Thiourea modified hyper-crosslinked polystyrene resin for heavy metal ions removal from aqueous solutions. J Appl Polym Sci 2017. [DOI: 10.1002/app.45568] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zujin Yang
- Fine Chemical Industry Research Institute, School of Chemical Engineering and Technology, Sun Yat-sen University; Zhuhai 519082 China
- Huizhou Research Institute of Sun Yat-sen University; Huizhou 516216 China
| | - Xiaonan Huang
- Fine Chemical Industry Research Institute, School of Chemistry, Sun Yat-sen University; Guangzhou 510275 China
| | - Xingdong Yao
- School of Chemistry & Chemical Engineering; Guangxi University for Nationalities; Nanning 530006 China
| | - Hongbing Ji
- Huizhou Research Institute of Sun Yat-sen University; Huizhou 516216 China
- Fine Chemical Industry Research Institute, School of Chemistry, Sun Yat-sen University; Guangzhou 510275 China
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