1
|
Liu C, Yan X, Zhang HX, Yang JM, Yoon KB. Silicone-modified black peanut shell (BPS) biochar adsorbents: Preparation and their adsorptions for copper(II) from water. Heliyon 2024; 10:e35169. [PMID: 39166084 PMCID: PMC11334888 DOI: 10.1016/j.heliyon.2024.e35169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 07/18/2024] [Accepted: 07/24/2024] [Indexed: 08/22/2024] Open
Abstract
Novel silicone-modified biochar adsorbents (BPS-MBCs) were prepared by utilizing waste black peanut shell (BPS) as a raw biochar and gamma-amino-propyl triethoxysilane (silicone) as an inorganic modifier. The novelty of this work is that the incorporation of silicone into BPS can rise the specific surface area and porosity of BPS-MBCs and elevate their adsorptions for copper (II). Sorption kinetics data for copper (II) were molded using five kinetic equations [i.e. Lagergren 1st-order and 2nd-order, intraparticle diffusion (IN-D), Elovich, and Diffusion-chemisorption]. The equilibrium adsorption data for copper (II) were analyzed using two-parameter isotherm equations [i.e. Langmuir, Freundlich, Dubinin-Radushkevich, and Temkin] and three-parameter Sips, Redlich-Peterson and Toth isotherm models. It was validated that copper (II) sorption on BPS-MBCs matched better with pseudo-2nd-order kinetic, Diffusion-chemisorption and Langmuir isotherm models. The maximal qmLan of BPS-MBC-400 was near 284 mg/g at 45 °C. By multi-phase fitting of IN-D modelling, intra-particle diffusion coefficient (kin-d) and diffusion coefficient of external mass-transfer (DEx-Di) for copper (II) were calculated. The low sorption energy from Temkin and mean free energy from D-R modellings implied that copper (II) sorption was initiated by weak non-covalent bond interactions. Thermodynamic parameters indicated that copper (II) on BPS-MBCs was an endothermic and spontaneous process. Recycling of BPS-MBC-400 for copper (II) suggested it has excellent reusability. The major mechanism of copper (II) on BPS-MBCs is possibly comprised of multiple processes, such as physical adsorption (electrostatic attraction), chemical adsorption (adsorption from functional groups, chelation, and ion exchange) and diffusion-chemisorption. Based on these findings, it is expects that BPS-MBCs are promising sorbents for copper (II) eradication from Cu(II)-including wastewater.
Collapse
Affiliation(s)
- Chen Liu
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Xin Yan
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - He-Xin Zhang
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Jian-ming Yang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Keun-Byoung Yoon
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu, South Korea
| |
Collapse
|
2
|
Naik MUD. Adsorbents for the Uranium Capture from Seawater for a Clean Energy Source and Environmental Safety: A Review. ACS OMEGA 2024; 9:12380-12402. [PMID: 38524451 PMCID: PMC10956418 DOI: 10.1021/acsomega.3c07961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/27/2024] [Accepted: 02/01/2024] [Indexed: 03/26/2024]
Abstract
On the global level, uranium is considered the main nuclear energy source, and its removal from terrestrial ores is enough to last until the end of the current century. Therefore, a major focus is attracted toward the capture of uranium from a sustainable source (seawater). Uranium recovery from seawater has been reported over the last few decades, and recently many efforts have been devoted to the preparation of such adsorbents with higher selectivity and adsorption capacity. The purpose of this review is to report the advancement in adsorbent preparation and modification of porous materials. It also discusses challenges such as adsorbent selectivity, low uranium concentration in seawater, contact time, biofouling, and the solution to the problems necessary to ensure a better adsorption performance of the adsorbent.
Collapse
Affiliation(s)
- Mehraj-ud-din Naik
- Department of Chemical Engineering,
College of Engineering, Jazan University, Jazan 45142, Kingdom of Saudi Arabia
| |
Collapse
|
3
|
Pellenz L, de Oliveira CRS, da Silva Júnior AH, da Silva LJS, da Silva L, Ulson de Souza AA, de Souza SMDAGU, Borba FH, da Silva A. A comprehensive guide for characterization of adsorbent materials. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
4
|
Galhoum AA, Akashi T, Linnolahti M, Hirvi JT, Al-Sehemi AG, Kalam A, Guibal E. Functionalization of poly(glycidylmethacrylate) with iminodiacetate and imino phosphonate groups for enhanced sorption of neodymium - sorption performance and molecular modeling. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
5
|
Mo L, Pang H, Lu Y, Li Z, Kang H, Wang M, Zhang S, Li J. Wood-inspired nanocellulose aerogel adsorbents with excellent selective pollutants capture, superfast adsorption, and easy regeneration. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125612. [PMID: 33730646 DOI: 10.1016/j.jhazmat.2021.125612] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/21/2021] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
Heavy metal ions can cause a series of hazards to environment and humans. Herein, we developed a wood-inspired nanocellulose aerogel adsorbent with excellent selective capability, superfast adsorption, and easy regeneration. The premise for the design is that the biomimetic honeycomb architecture and specific covalent bonding networks can provide the adsorbent with structural and mechanical integrity yet superfast removal of target contaminants. The as-obtained adsorbent showed the maximum adsorption capacity for Pb(II), Cu(II), Zn(II), Cd(II), and Mn(II) of 571 mg g-1, 462 mg g-1, 361 mg g-1, 263 mg g-1, and 208 mg g-1, respectively. The adsorbent could remove Pb(II) species with super-rapid speed (87% and 100% of its equilibrium uptake in 2 min and 10 min, respectively). Furthermore, the adsorption isotherm and kinetics models were in accord with the Langmuir and pseudo-second-order models, indicating that the adsorption behavior was dominated by monolayer chemisorption. The aerogel adsorbent had better affinity for Pb(II) than other coexisting ions in wastewater and could be regenerated for at least five cycles. Such a wood-inspired aerogel adsorbent holds great potential in the application of contaminant cleaning.
Collapse
Affiliation(s)
- Liuting Mo
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Huiwen Pang
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Yutong Lu
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Zhi Li
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Haijiao Kang
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Maogong Wang
- CNPC Engineering Technology R&D Company Limited, Beijing 102206, China
| | - Shifeng Zhang
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China.
| | - Jianzhang Li
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| |
Collapse
|
6
|
Ling C, Ren Z, Wei M, Tong F, Cheng Y, Zhang X, Liu F. Highly selective removal of Ni(II) from plating rinsing wastewaters containing [Ni-xNH 3-yP 2O 7] n complexes using N-chelating resins. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122960. [PMID: 32512453 DOI: 10.1016/j.jhazmat.2020.122960] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/05/2020] [Accepted: 05/12/2020] [Indexed: 06/11/2023]
Abstract
Inorganic complexants, such as ammonia (AA) and pyrophosphate (PP), are often present alongside heavy metal ions in alkaline plating rinsing wastewater. We investigated the removal capacity of Ni(II) from waters containing [Ni-xNH3-yP2O7]n complexes by chelating and ion-exchange resins in sole and dual-ligand systems. D463 (containing iminodiacetic groups) and PAMD (possessing polyamine groups) exerted superior performance under all conditions. Ni(II) adsorption on D463 decreased with AA and PP by 10.3% and 64.4%, respectively. Conversely, the adsorption on PAMD increased by 57.3% and 75.8%, respectively. PAMD exhibited high selectivity toward anionic [Ni-PP] species over free PP. More Ni(II) was captured by PAMD in the dual-ligand systems than sole systems, while the case for D463 was opposite. As confirmed by species tracking and DFT/XPS analyses, complexes breaking-Ni2+ capture was the dominant mechanism for D463, while the dual-site (non-charged and protonated amines) interactions with NiP2O72- on PAMD promoted its adsorption. The tandem combination D463-PAMD was the optimal mode to remove the most Ni(II). The actual wastewater test demonstrated that >210 BV effluent met the limit of 0.1 mg Ni(II)/L and the eluent contained 15 g Ni(II)/L. This study guides the application of chelating adsorption processes in the advanced treatment of plating rinsing wastewaters.
Collapse
Affiliation(s)
- Chen Ling
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, PR China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Zixi Ren
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, PR China
| | - Mengmeng Wei
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Fei Tong
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China
| | - Yuwei Cheng
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, PR China
| | - Xiaopeng Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571127, PR China
| | - Fuqiang Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
| |
Collapse
|
7
|
Huang Z, Jiang L, Wu P, Dang Z, Zhu N, Liu Z, Luo H. Leaching characteristics of heavy metals in tailings and their simultaneous immobilization with triethylenetetramine functioned montmorillonite (TETA-Mt) against simulated acid rain. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115236. [PMID: 32721775 DOI: 10.1016/j.envpol.2020.115236] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/01/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
For further understanding leaching characteristics of heavy metals in tailings and better immobilization on heavy metals against acid rain, batch experiments were conducted. The leaching results of Cu(II), Zn(II), Cd(II) and Mn(II) can be well fit by second-order kinetics equation, and Pb(II) can be well fit by two-constant equation. The leaching intensity of heavy metals in tailings was ranged as: Mn(II)> Cu(II)> Cd(II)> Zn(II)> Pb(II). Triethylenetetramine functioned montmorillonite (TETA-Mt) was successfully synthesized and can obtain simultaneous immobilization effect compared with Mt and TETA, and immobilization rates on Cu(II), Cd(II), Mn(II) and Zn(II) can reach above 90%, the immobilization rate on Pb(II) can reach more than 75%. The mechanisms for efficient immobilization of heavy metals on TETA-Mt included buffering and adsorption abilities. The mechanism for TETA-Mt adsorption of heavy metals included physical absorption, chelation and chemical sedimentation. The results showed that TETA-Mt can be applied to effective immobilization of heavy metals in tailings and efficient remediation of acid mine drainage (AMD) in acid rain area.
Collapse
Affiliation(s)
- Zhiyan Huang
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Lu Jiang
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Pingxiao Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou, 510006, PR China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou, 510006, PR China; Guangdong Engineering and Technology Research Center for Environmental Nanomaterials, Guangzhou, 510006, PR China; Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, Guangzhou, 510006, PR China.
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Nengwu Zhu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Zehua Liu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Hanjin Luo
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| |
Collapse
|
8
|
Othman NAF, Selambakkannu S, Tuan Abdullah TA, Hoshina H, Sattayaporn S, Seko N. Selectivity of Copper by Amine-Based Ion Recognition Polymer Adsorbent with Different Aliphatic Amines. Polymers (Basel) 2019; 11:polym11121994. [PMID: 31810361 PMCID: PMC6960742 DOI: 10.3390/polym11121994] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/25/2019] [Accepted: 11/29/2019] [Indexed: 11/25/2022] Open
Abstract
This paper investigates the selectivity of GMA-based-non-woven fabrics adsorbent towards copper ion (Cu) functionalized with several aliphatic amines. The aliphatic amines used in this study were ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA), and tetraethylenepentamine (TEPA). The non-woven polyethylene/polypropylene fabrics (NWF) were grafted with glycidyl methacrylate (GMA) via pre-radiation grafting technique, followed by chemical functionalization with the aliphatic amine. To prepare the ion recognition polymer (IRP), the functionalized amine GMA-grafted-NWF sample was subjected to radiation crosslinking process along with the crosslinking agent, divinylbenzene (DVB), in the presence of Cu ion as a template in the matrix of the adsorbent. Functionalization with different aliphatic amine was carried out at different amine concentrations, grafting yield, reaction temperature, and reaction time to study the effect of different aliphatic amine onto amine density yield. At a concentration of 50% of amine and 50% of isopropanol, EDA, DETA, TETA, and TEPA had attained amine density around 5.12, 4.06, 3.04, and 2.56 mmol/g-ad, respectively. The amine density yield decreases further as the aliphatic amine chain grows longer. The experimental condition for amine functionalization process was fixed at 70% amine, 30% isopropanol, 60 °C for grafting temperature, and 2 h of grafting time for attaining 100% of grafting yield (Dg). The prepared adsorbents were characterized comprehensively in terms of structural and morphology with multiple analytical tools. An adsorptive removal and selectivity of Cu ion by the prepared adsorbent was investigated in a binary metal ion system. The IRP samples with a functional precursor of EDA, the smallest aliphatic amine had given the higher adsorption capacity and selectivity towards Cu ion. The selectivity of IRP samples reduces as the aliphatic amine chain grows longer, EDA to TEPA. However, IRP samples still exhibited remarkably higher selectivity in comparison to the amine immobilized GMA-g-NWF at similar adsorption experimental conditions. This observation indicates that IRP samples possess higher selectivity after incorporation of the ion recognition imprint technique via the radiation crosslinking process.
Collapse
Affiliation(s)
- Nor Azillah Fatimah Othman
- Radiation Processing Technology Division, Malaysian Nuclear Agency, Bangi, Kajang 43000, Selangor, Malaysia; (N.A.F.O.); (S.S.)
- Correspondence: ; Tel.: +81-27-346-9380
| | - Sarala Selambakkannu
- Radiation Processing Technology Division, Malaysian Nuclear Agency, Bangi, Kajang 43000, Selangor, Malaysia; (N.A.F.O.); (S.S.)
| | - Tuan Amran Tuan Abdullah
- Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia;
| | - Hiroyuki Hoshina
- Takasaki Advanced Radiation Research Institute, Quantum Beam Science Research Directorate, 1233, Watanuki-machi, Takasaki 370-1292, Gunma, Japan;
| | | | - Noriaki Seko
- Takasaki Advanced Radiation Research Institute, Quantum Beam Science Research Directorate, 1233, Watanuki-machi, Takasaki 370-1292, Gunma, Japan;
- Correspondence: ; Tel.: +81-27-346-9380
| |
Collapse
|
9
|
Zhao K, Kong L, Yang W, Huang Y, Li H, Ma S, Lv W, Hu J, Wang H, Liu H. Hooped Amino-Group Chains in Porous Organic Polymers for Enhancing Heavy Metal Ion Removal. ACS APPLIED MATERIALS & INTERFACES 2019; 11:44751-44757. [PMID: 31689074 DOI: 10.1021/acsami.9b16423] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
By adjusting the stretch state of a triethylenetetramine (TETA) chain in an amine-functionalized porous organic polymer (POP), two adsorbents were designed to study the rational microenvironment for heavy metal ion removal. The quantum calculation elucidated that the hooped amino chains in FC-POP-CH2TETA-H exhibited stronger interactions with Pb(II) than the extended one in FC-POP-CH2TETA-E, not only through metal-ligand chelation but also metal coordination. The high binding energy of -2624 kJ mol-1 as well as the constructed microenvironment by the hooped amino chains ensured an extremely high Pb(II) capacity of 1134 mg g-1 on FC-POP-CH2TETA-H. Meanwhile, no more than 5 min to approach adsorption equilibrium revealed its ultrafast adsorption rate. It also showed excellent broad removal capability for multiple metal ions and nonsensitivity to pH. Therefore, by controlling the microenvironmental structures with suitable porosity, functional group stretching states, and coordination modes, the removal efficiency of heavy metal ions would be significantly enhanced, which further provided a promising strategy for designing a rational microenvironment to improve the task-specific separation properties.
Collapse
|
10
|
Polyamine-Based Organo-Clays for Polluted Water Treatment: Effect of Polyamine Structure and Content. Polymers (Basel) 2019; 11:polym11050897. [PMID: 31100941 PMCID: PMC6571895 DOI: 10.3390/polym11050897] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/30/2019] [Accepted: 05/13/2019] [Indexed: 11/17/2022] Open
Abstract
Hybrid materials based on clays and polyamines are supposed to be efficient heavy metals sorbents due to the well-known adsorption behaviour of the clay matrix and to the coordination properties of un-protonated amino groups. For this purpose, a montmorillonite clay was modified with three different aliphatic polyamines: L6 and L10 have a linear structure with six and ten amino groups, respectively, while B14 is a branched polyamine with fourteen amino groups. Initial amine concentration was the main parameter investigated and data were fitted with Langmuir and Freundlich models. Interaction mechanisms between clay and amines were deeply investigated by different experimental techniques such as X-ray powder diffraction (XRD), thermal analysis measurements (DTG), Fourier Transform Infrared Spectroscopy (FT-IR) and diffuse reflectance (NIR) spectroscopy. Experimental results showed that the amount of amines efficiently immobilized in the solid phase can be increased by increasing the initial concentration of polyamines in the clay modification process. These data were best fitted by Freundlich model, indicating a presence of surface sites of different nature. In the resulting hybrid materials, neither the accessibility of the NH/NH2 groups of the amines, nor the accessibility of the structural OH of the clay was hindered. Several preliminary tests in La ions’ uptake and release from aqueous solution were also carried out. In the conditions used for this study, total metal ion removal was achieved at sufficiently low linear amine loadings (i.e., 0.45 mmol/gclay for the small L6 amine), suggesting that these hybrid materials are promising for the proposed application in environmental remediation.
Collapse
|
11
|
Shim J, Kumar M, Mukherjee S, Goswami R. Sustainable removal of pernicious arsenic and cadmium by a novel composite of MnO 2 impregnated alginate beads: A cost-effective approach for wastewater treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 234:8-20. [PMID: 30599330 DOI: 10.1016/j.jenvman.2018.12.084] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/10/2018] [Accepted: 12/22/2018] [Indexed: 05/21/2023]
Abstract
There is a dire necessity of developing low cost waste water treatment systems, for the efficient removal of noxious heavy metals (and metalloids) such as Arsenic (As) and Cadmium (Cd). Magnetic biopolymer (CABs-MO) was synthesized by the entrapment of nanocrystalline MnO2 in the polymeric microcapsules of calcium alginate (CABs). Batch experiments were conducted under constant pH (6.5), temperature (25OC), different initial concentrations (30-300 mg L-1) and contact times (0-48 h) to study the adsorption isotherms and removal kinetics of pristine (CABs) and hybrid biopolymer (CABs-MO) for the removal of As and Cd. The pseudo-equilibrium process was mathematically well explained by the pseudo-second-order kinetic (R2 ≥ 0.99) and Langmuir isotherm model (R2 ≥ 0.99) with the highest monolayer sorption capacity of 63.6 mg g-1 for Cd on CABs-MO. The As removal rate was maximum up to 6.5 mg g-1 after 12 h of contact period in a single contaminant system than in the mixed contaminant (As + Cd) system (0.8 mg g-1), though the effect was non-significant for Cd (p < 0.05; t-test). The performance of the 10 mM HCl as a regenerating agent was superior (for As in comparison to Cd, p < 0.05; t-test) compared to distilled water (DW) through three to five regeneration cycles. Therefore, the obtained results clearly validate the feasibility of CABs-MO as a potential promising adsorbent for removing metal contaminants from the wastewater. Further research is required to study the decontamination of emerging contaminants with such novel composite beads characterized by varied physico-chemical properties.
Collapse
Affiliation(s)
- Jaehong Shim
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, Chonbuk National University, Iksan, Jeonbuk, 570-752, South Korea
| | - Manish Kumar
- Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat, 382355, India.
| | - Santanu Mukherjee
- Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat, 382355, India
| | - Ritusmita Goswami
- Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat, 382355, India
| |
Collapse
|
12
|
Yoon SG, Yang Y, Jin H, Lee WH, Sohn A, Kim SW, Park J, Kim YS. A Surface-Functionalized Ionovoltaic Device for Probing Ion-Specific Adsorption at the Solid-Liquid Interface. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806268. [PMID: 30484923 DOI: 10.1002/adma.201806268] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/31/2018] [Indexed: 06/09/2023]
Abstract
Aqueous ion-solid interfacial interactions at an electric double layer (EDL) are studied in various research fields. However, details of the interactions at the EDL are still not fully understood due to complexity induced from the specific conditions of the solid and liquid parts. Several technical tools for ion-solid interfacial probing are experimentally and practically proposed, but they still show limitations in applicability due to the complicated measurements. Recently, an energy conversion device based on ion dynamics (called ionovoltaic device) was also introduced as another monitoring tool for the EDL, showing applicability as a novel probing method for interfacial interactions. Herein, a monitoring technique for specific ion adsorption (Cu2+ and Pb2+ in the range of 5 × 10-6 -1000 × 10-6 m) in the solid-liquid interface based on the ionovoltaic device is newly demonstrated. The specific ion adsorption and the corresponding interfacial potentials profiles are also investigated to elucidate a working mechanism of the device. The results give the insight of molecular-level ion adsorption through macroscopic water-motion-induced electricity generation. The simple and cost-effective detection of the device provides an innovative route for monitoring specific adsorption and expandability as a monitoring tool for various solid-liquid interfacial phenomena that are unrevealed.
Collapse
Affiliation(s)
- Sun Geun Yoon
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - YoungJun Yang
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Huding Jin
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Won Hyung Lee
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ahrum Sohn
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon-si, Gyeonggi-do, 16419, Republic of Korea
| | - Sang-Woo Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon-si, Gyeonggi-do, 16419, Republic of Korea
| | - Junwoo Park
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Youn Sang Kim
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| |
Collapse
|
13
|
Liu F, Song S, Cheng G, Xiong W, Shi L, Zhang Y. MIL-101(Cr) metal–organic framework functionalized with tetraethylenepentamine for potential removal of Uranium (VI) from waste water. ADSORPT SCI TECHNOL 2018. [DOI: 10.1177/0263617418789516] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The metal–organic frameworks material functionalized by grafting amino group of tetraethylenepentamine on the coordinative unsaturated Cr (III) centers is described. The obtained tetraethylenepentamine-functionalized adsorbents with different mass ratios of tetraethylenepentamine have been characterized by scanning electron microscopy, Fourier-transform infrared, X-ray powder diffraction, and N2 adsorption and desorption isotherms. Significantly, MIL-101-tetraethylenepentamine 60% exhibited high adsorption capacity (350 mg/g) for removal of uranium (VI) from water at pH 4.5. At uranium concentration <20 mg/L, the isothermal plot was best represented by Freundlich model. At U(VI) concentration approximately >30 mg/L, the isotherm was best described by Langmuir model.
Collapse
Affiliation(s)
- Fengtai Liu
- Department of Radiochemistry and Radiotoxicology, College of Public Health, Jilin University, Changchun, PR China
| | - Shanshan Song
- Department of Radiochemistry and Radiotoxicology, College of Public Health, Jilin University, Changchun, PR China
| | - Ge Cheng
- Department of Radiochemistry and Radiotoxicology, College of Public Health, Jilin University, Changchun, PR China
| | - Wenjing Xiong
- Department of Epidemiology and Biostatistics, College of Public Health, Jilin University, Changchun, PR China
| | - Lei Shi
- Department of Radiochemistry and Radiotoxicology, College of Public Health, Jilin University, Changchun, PR China
| | - Yibo Zhang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, PR China
| |
Collapse
|
14
|
Şahin S, Emik S. Fast and highly efficient removal of 2,4-D using amino-functionalized poly (glycidyl methacrylate) adsorbent: Optimization, equilibrium, kinetic and thermodynamic studies. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.091] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
15
|
Chen JD, Yu JX, Wang F, Tang JQ, Zhang YF, Xu YL, Chi RA. Selective adsorption and recycle of Cu 2+ from aqueous solution by modified sugarcane bagasse under dynamic condition. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:9202-9209. [PMID: 28220385 DOI: 10.1007/s11356-017-8608-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/07/2017] [Indexed: 06/06/2023]
Abstract
Tetraethylenepentamine modified sugarcane bagasse was prepared and applied to test its feasibility in removing and recovering Cu2+ from wastewater under dynamic condition. Results showed that the Cu2+ could be selectively absorbed from wastewater by the modified SCB fixed bed column. To understand the adsorption mechanism, Cd2+ had been selected as the model interfering ion to investigate how co-ions influence the adsorption of Cu2+ on the sorbent. It was observed that the adsorption capacity of the sorbent for Cu2+ (0.26 mmol g-1) was significantly higher than that of Cd2+ (0.03 mmol g-1), even when the Cd2+ initial concentration was 100 times higher than that of Cu2+ in the binary system. This finding indicated that the presence of Cd2+ in the solution exerted negligible influence on the adsorption of Cu2+ on the modified SCB. The selectivity of the modified sorbent was further confirmed in the Cu/Cd/Mg/Pb/K quinary system. Further analysis to dynamic adsorption experiment illustrated that, due to the presence of amine groups, the modified SCB showed strong coordination ability to Cu2+, which allowed the other adsorbed ions (e.g., Cd2+) desorbed. This high adsorption selectivity toward Cu2+ suggested that this prepared sorbent would be a promising candidate for removing and recovering Cu2+ from wastewater.
Collapse
Affiliation(s)
- Jia-Dong Chen
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China
| | - Jun-Xia Yu
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China.
| | - Fen Wang
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China
| | - Jia-Qi Tang
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China
| | - Yue-Fei Zhang
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China
| | - Yuan-Lai Xu
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China
| | - Ru-An Chi
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, China
| |
Collapse
|
16
|
Gong B, Wu P, Huang Z, Li Y, Yang S, Dang Z, Ruan B, Kang C. Efficient inhibition of heavy metal release from mine tailings against acid rain exposure by triethylenetetramine intercalated montmorillonite (TETA-Mt). JOURNAL OF HAZARDOUS MATERIALS 2016; 318:396-406. [PMID: 27450331 DOI: 10.1016/j.jhazmat.2016.07.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/22/2016] [Accepted: 07/05/2016] [Indexed: 06/06/2023]
Abstract
The potential application of triethylenetetramine intercalated montmorillonite (TETA-Mt) in mine tailings treatment and AMD (acid mine drainage) remediation was investigated with batch experiments. The structural and morphological characteristics of TETA-Mt were analyzed with XRD, FTIR, DTG-TG and SEM. The inhibition efficiencies of TETA-Mt against heavy metal release from mine tailings when exposed to acid rain leaching was examined and compared with that of triethylenetetramine (TETA) and Mt. Results showed that the overall inhibition by TETA-Mt surpassed that by TETA or Mt for various heavy metal ions over an acid rain pH range of 3-5.6 and a temperature range of 25-40°C. When mine tailings were exposed to acid rain of pH 4.8 (the average rain pH of the mining site where the mine tailings were from), TETA-Mt achieved an inhibition efficiency of over 90% for Cu(2+), Zn(2+), Cd(2+) and Mn(2+) release, and 70% for Pb(2+) at 25°C. It was shown that TETA-Mt has a strong buffering capacity. Moreover, TETA-Mt was able to adsorb heavy metal ions and the adsorption process was fast, suggesting that coordination was mainly responsible. These results showed the potential of TETA-Mt in AMD mitigation, especially in acid rain affected mining area.
Collapse
Affiliation(s)
- Beini Gong
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; Guangdong Key Laboratory of Agro-Environmental Integrated Control, Guangdong Institute of Eco-Environmental Science & Technology, Guangzhou 510006, PR China
| | - Pingxiao Wu
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China; Guangdong Provincial Engineering and Technology Research Centre for Environment Risk Prevention and Emergency Disposal, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; Guangdong Environmental Protection Key Lab of Solid Waste Treatment and Recycling, Guangzhou 510006, PR China.
| | - Zhujian Huang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Yuanyuan Li
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Shanshan Yang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - Bo Ruan
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Chunxi Kang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| |
Collapse
|
17
|
Liu C, Liang X, Liu J, Yuan W. Desorption of copper ions from the polyamine-functionalized adsorbents: Behaviors and mechanisms. ADSORPT SCI TECHNOL 2016. [DOI: 10.1177/0263617416663732] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Changkun Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, China
| | - Xiaoyan Liang
- College of Chemistry and Environmental Engineering, Shenzhen University, China
| | - Ji’an Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, China
| | - Wenxiang Yuan
- College of Chemistry and Environmental Engineering, Shenzhen University, China
| |
Collapse
|
18
|
Islam A, Zaidi N, Ahmad H, Kumar S. Amine-functionalized mesoporous polymer as potential sorbent for nickel preconcentration from electroplating wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:7716-7725. [PMID: 25561258 DOI: 10.1007/s11356-014-4011-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 12/15/2014] [Indexed: 06/04/2023]
Abstract
In this study, mesoporous glycidyl methacrylate-divinylbenzene-based chelating resin was synthesized and grafted with diethylenetriamine through epoxy ring-opening reaction. The synthesized resin was characterized by elemental analysis, infrared spectroscopy, surface area and pore size analysis, scanning electron microscopy, energy-dispersive spectroscopy, and thermogravimetry. The resin was used for the first time as an effective sorbent for the preconcentration of nickel in electroplating wastewater samples. The analytical variables like pH, flow rate for sorption/desorption, and eluate selection were systematically investigated and optimized. The uniform and monolayer sorption behavior of resin for nickel was proved by an evident fit of the equilibrium data to a Langmuir isotherm model. Under optimized conditions, the resin was observed to show a good sorption capacity of 20.25 mg g(-1) and >96% recovery of nickel even in the presence of a large number of competitive matrix ions. Its ability to extract trace amount of nickel was exhibited by low preconcentration limit (5.9 μg L(-1)). The calibration curve was found to be linear (R(2) = 0.998) in the concentration range of 6.0-400.0 μg L(-1). Coefficient of variation of less than 5 for all the analysis indicated good reproducibility. The reliability was evaluated by the analysis of standard reference material (SRM) and recovery experiments. The applicability of the resin for the systematic preconcentration of nickel is substantiated by the analysis of electroplating wastewater and river water samples. Graphical abstract ᅟ.
Collapse
Affiliation(s)
- Aminul Islam
- Analytical Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, India, 202002,
| | | | | | | |
Collapse
|
19
|
Ahmed SA, Soliman EM. Effect of aliphatic diamine length functionalized silica coated iron magnetic nanoparticles on metal capacity and speed of Cu(II) uptake from aqueous media. ANAL SCI 2014; 30:823-31. [PMID: 25109645 DOI: 10.2116/analsci.30.823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Three solid phase extractors based on silica coated magnetic nanoparticles (Fe3O4-SiO2) functionalized aliphatic diamines were synthesized. The magnetic core of Fe3O4 was synthesized first by the sol-gel method, then protected by a layer of silica using tetraethylorthosilicate (TEOS) followed by functionalization using three aliphatic diamines: 1,2-ethanediamine (1,2-EDA), 1,5-pentanediamine (1,5-PDA) and 1,8-octanediamine (1,8-ODA). These steps for producing the targeted three adsorbents Fe3O4-SiO2-1,2-EDA, Fe3O4-SiO2-1,5-PDA and Fe3O4-SiO2-1,8-ODA with different amines spacer arm were followed up using Fourier Transform Infrared (FTIR) spectra and scanning electron microscope (SEM). The effect of the spacer arm length of the diamines on selective binding and metal capacity values of Cu(II) ions was studied as a function of the time needed to attain equilibrium under optimized conditions of pH, mass of adsorbent and initial concentration of Cu(II) ions. The order of increasing metal capacity for copper ions using magnetic nano-adsorbents was Fe3O4-SiO2-1,2-EDA < Fe3O4-SiO2-1,5-PDA < Fe3O4-SiO2-1,8-ODA at 5 s equilibrium time.
Collapse
Affiliation(s)
- Salwa A Ahmed
- Chemistry Department, Faculty of Science, El-Minia University
| | | |
Collapse
|
20
|
Preparation and characterization of an IPN type chelating resin containing amino and carboxyl groups for removal of Cu(II) from aqueous solutions. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2013.12.006] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
21
|
Isenberg M, Chuang SSC. The Nature of Adsorbed CO2 and Amine Sites on the Immobilized Amine Sorbents Regenerated by Industrial Boiler Steam. Ind Eng Chem Res 2013. [DOI: 10.1021/ie401892u] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mathew Isenberg
- Department
of Chemical and Biomedical Engineering and ‡Department of Polymer Science, The University of Akron, Akron, Ohio
44325
| | - Steven S. C. Chuang
- Department
of Chemical and Biomedical Engineering and ‡Department of Polymer Science, The University of Akron, Akron, Ohio
44325
| |
Collapse
|
22
|
Zhang J, Wang L, Zhang G, Wang Z, Xu L, Fan Z. Influence of azo dye-TiO2 interactions on the filtration performance in a hybrid photocatalysis/ultrafiltration process. J Colloid Interface Sci 2013; 389:273-83. [DOI: 10.1016/j.jcis.2012.08.062] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 08/25/2012] [Accepted: 08/29/2012] [Indexed: 11/28/2022]
|
23
|
Maksin DD, Nastasović AB, Milutinović-Nikolić AD, Suručić LT, Sandić ZP, Hercigonja RV, Onjia AE. Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers. JOURNAL OF HAZARDOUS MATERIALS 2012; 209-210:99-110. [PMID: 22284173 DOI: 10.1016/j.jhazmat.2011.12.079] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 12/14/2011] [Accepted: 12/28/2011] [Indexed: 05/31/2023]
Abstract
Two porous and one non-porous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were prepared by suspension copolymerization and functionalized with diethylene triamine [abbreviated PGME-deta]. Samples were characterized by elemental analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Kinetics of Cr(VI) sorption by PGME-deta were investigated in batch static experiments, in the temperature range 25-70°C. Sorption was rapid, with the uptake capacity higher than 80% after 30 min. Sorption behavior and rate-controlling mechanisms were analyzed using five kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion and Bangham model). Kinetic studies showed that Cr(VI) adsorption adhered to the pseudo-second-order model, with definite influence of pore diffusion. Equilibrium data was tested with Langmuir, Freundlich and Tempkin adsorption isotherm models. Langmuir model was the most suitable indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption. The maximum adsorption capacity from the Langmuir model, Q(max), at pH 1.8 and 25°C was 143 mg g(-1) for PGME2-deta (sample with the highest amino group concentration) while at 70°C Q(max) reached the high value of 198 mg g(-1). Thermodynamic parameters revealed spontaneous and endothermic nature of Cr(VI) adsorption onto PGME-deta.
Collapse
Affiliation(s)
- Danijela D Maksin
- University of Belgrade, Vinča Institute of Nuclear Sciences, P.O. Box 522, Belgrade, Serbia
| | | | | | | | | | | | | |
Collapse
|
24
|
Bondar’ YV, Han DH. Specific features of amination of poly(glycidyl methacrylate) chains grafted onto polypropylene fibers. RUSS J APPL CHEM+ 2012. [DOI: 10.1134/s1070427212020206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
25
|
An F, Du R, Wang X, Wan M, Dai X, Gao J. Adsorption of phenolic compounds from aqueous solution using salicylic acid type adsorbent. JOURNAL OF HAZARDOUS MATERIALS 2012; 201-202:74-81. [PMID: 22169143 DOI: 10.1016/j.jhazmat.2011.11.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2011] [Revised: 11/07/2011] [Accepted: 11/09/2011] [Indexed: 05/31/2023]
Abstract
In this study, 5-aminosalicylic acid (5-ASA) was successfully grafted onto the poly(glycidyl methacrylate) (PGMA) macromolecular chains of PGMA/SiO(2) to obtain adsorbent ASA-PGMA/SiO(2). The adsorption properties of ASA-PGMA/SiO(2) for phenolic compounds were studied through batch and column methods. The experimental results showed that ASA-PGMA/SiO(2) possesses strong adsorption ability for phenolic compounds, and its adsorption capacity for phenol, 4-chlorophenol, and p-nitrophenol reaches 1.0, 1.1, and 1.32 mmolg(-1), respectively. In addition, pH has a great influence on the adsorption capacity. The adsorption isotherm data obeyed the Langmuir model well than Freundlich model. The desorption of phenolic compounds from the ASA-PGMA/SiO(2) adsorbent was most effectively achieved in a 0.1 molL(-1) sodium hydroxide solution. Consecutive adsorption-desorption experiments showed that the ASA-PGMA/SiO(2) adsorbent could be reused almost without any loss in the adsorption capacity.
Collapse
Affiliation(s)
- Fuqiang An
- Department of Chemical, North University of China, Taiyuan 030051, People's Republic of China.
| | | | | | | | | | | |
Collapse
|
26
|
An F, Gao B, Dai X, Wang M, Wang X. Efficient removal of heavy metal ions from aqueous solution using salicylic acid type chelate adsorbent. JOURNAL OF HAZARDOUS MATERIALS 2011; 192:956-962. [PMID: 21741170 DOI: 10.1016/j.jhazmat.2011.05.050] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2011] [Revised: 05/14/2011] [Accepted: 05/16/2011] [Indexed: 05/31/2023]
Abstract
In this study, 5-aminosalicylic acid was successfully grafted onto the poly(glycidyl methacrylate) (PGMA) macromolecular chains of PGMA/SiO(2) to obtain a novel adsorbent designated as ASA-PGMA/SiO(2). The adsorption properties of ASA-PGMA/SiO(2) for heavy metal ions were studied through batch and column methods. The experimental results showed that ASA-PGMA/SiO(2) possesses strong chelating adsorption ability for heavy metal ions, and its adsorption capacity for Cu(2+), Cd(2+), Zn(2+), and Pb(2+) reaches 0.42, 0.40, 0.35, and 0.31 mmol g(-1), respectively. In addition, pH has a great influence on the adsorption capacity in the studied pH range. The adsorption isotherm data greatly obey the Langmuir and Freundlich model. The desorption of metal ions from ASA-PGMA/SiO(2) is effective using 0.1 mol l(-1) of hydrochloric acid solution as eluent. Consecutive adsorption-desorption experiments showed that ASA-PGMA/SiO(2) could be reused almost without any loss in the adsorption capacity.
Collapse
Affiliation(s)
- Fuqiang An
- Chemical Department, North University of China, Road 3, Taiyuan 030051, PR China.
| | | | | | | | | |
Collapse
|