1
|
Bagheri M, Amidi Y, Masoomi MY. Cysteamine-Anchored MOF through Post-Synthetic Modification Strategy for the Effective Removal of Mercury from Water. Inorg Chem 2024; 63:11381-11392. [PMID: 38843557 DOI: 10.1021/acs.inorgchem.4c01462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
The introduction of cysteamine functionality, referred to as Q-ZIF-67-SH, was successfully achieved through postsynthetic modification while maintaining the structural and thermal stability of the quasi metal-organic framework Q-ZIF-67. By subjecting ZIF-67 to controlled partial deligandation at 310 °C under an air atmosphere, a substantial number of unsaturated cobalt sites were generated within the quasi ZIF-67 (Q-ZIF-67) structure. These unsaturated cobalt sites facilitated effective coordination with cysteamine, resulting in the development of the thiol-functionalized framework Q-ZIF-67-SH. The potential of these metal-organic frameworks (MOFs) for the adsorptive removal of hazardous Hg(II) was investigated. Various factors, such as the type of sorbent, pH, adsorbent dosage, initial concentration of Hg(II), and presence of coexisting ions, were thoroughly examined and comprehensively explained. Thiol-anchored MOF significantly enhanced the efficiency of Hg(II) removal, achieving an impressive removal rate of up to 99.2%. Furthermore, it demonstrated a maximum adsorption capacity of 994 mg g-1 and a distribution coefficient of 2.5 × 106 mL g-1. A good correspondence with pseudo-second-order kinetics and the Langmuir model was observed through the fitting of adsorption kinetics and the isotherm model. The thermodynamic data strongly indicate that the adsorptive removal of Hg(II) is characterized by endothermicity and spontaneity. This signifies that the process is energetically favorable and has potential for efficient Hg(II) removal. Therefore, the Q-ZIF-67-SH sorbent emerges as a promising and advantageous option for the removal of Hg(II) from water.
Collapse
Affiliation(s)
- Minoo Bagheri
- Department of Chemistry, Faculty of Science, Arak University, Arak 3848177584, Iran
| | - Yeganeh Amidi
- Department of Chemistry, Faculty of Science, Arak University, Arak 3848177584, Iran
| | | |
Collapse
|
2
|
Viltres H, Gupta NK, Paz R, Dhavale RP, Park HH, Leyva C, Srinivasan S, Rajabzadeh AR. Mercury remediation from wastewater through its spontaneous adsorption on non-functionalized inverse spinel magnetic ferrite nanoparticles. ENVIRONMENTAL TECHNOLOGY 2024; 45:1155-1168. [PMID: 36263910 DOI: 10.1080/09593330.2022.2138787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
In this study, inverse spinel cubic ferrites MFe2O4 (M = Fe2+, and Co2+) have been fabricated for the high-capacity adsorptive removal of Hg(II) ions. The PXRD analysis confirmed ferrites with the presence of residual NaCl. The surface area of Fe3O4 (Fe-F) and CoFe2O4 (Co-F) material was 69.1 and 45.2 m2 g-1, respectively. The Co-F and Fe-F showed the maximum Hg(II) adsorption capacity of 459 and 436 mg g-1 at pH 6. The kinetic and isotherms models suggested a spontaneous adsorption process involving chemical forces over the ferrite adsorbents. The Hg(II) adsorption process, probed by X-ray photoelectron spectroscopy (XPS), confirmed the interaction of Hg(II) ions with the surface hydroxyl groups via a complexation mechanism instead of proton exchange at pH 6 with the involvement of chloride ions. Thus, this study demonstrates a viable and cost-effective solution for the efficient remediation of Hg ions from wastewater using non-functionalized ferrite adsorbents. This study also systematically investigates the kinetics and isotherm mechanism of Hg(II) adsorption onto ferrites and reports one of the highest Hg(II) adsorption capacities among other ferrite-based adsorbents.
Collapse
Affiliation(s)
- Herlys Viltres
- School of Engineering Practice and Technology, McMaster University, Hamilton, Ontario, Canada
| | - Nishesh Kumar Gupta
- Department of Environmental Research, University of Science and Technology (UST), Daejeon, Korea
- Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang, Korea
| | - Roxana Paz
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, CDMX, Mexico
| | - Rushikesh P Dhavale
- Department of Materials Science and Engineering, Yonsei University, Seoul, South Korea
| | - Hyung-Ho Park
- Department of Materials Science and Engineering, Yonsei University, Seoul, South Korea
| | - Carolina Leyva
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, CDMX, Mexico
| | - Seshasai Srinivasan
- School of Engineering Practice and Technology, McMaster University, Hamilton, Ontario, Canada
| | - Amin Reza Rajabzadeh
- School of Engineering Practice and Technology, McMaster University, Hamilton, Ontario, Canada
| |
Collapse
|
3
|
Mashkoor F, Shoeb M, Jeong C. Alginate Modified Magnetic Polypyrrole Nanocomposite for the Adsorptive Removal of Heavy Metal. Polymers (Basel) 2023; 15:4285. [PMID: 37959965 PMCID: PMC10650565 DOI: 10.3390/polym15214285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/28/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
The presence of heavy metals with high acute toxicity in wastewater poses a substantial risk to both the environment and human health. To address this issue, we developed a nanocomposite of alginate-encapsulated polypyrrole (PPy) decorated with α-Fe2O3 nanoparticles (Alg@Mag/PPy NCs), fabricated for the removal of mercury(II) from synthetic wastewater. In the adsorption experiments, various parameters were examined to identify the ideal conditions. These parameters included temperature (ranging from 298 to 323 K), initial pH levels (ranging from two to nine), interaction time, amount of adsorbent (from 8 to 80 mg/40 mL), and initial concentrations (from 10 to 200 mg/L). The results of these studies demonstrated that the removal efficiency of mercury(II) was obtained to be 95.58% at the optimum pH of 7 and a temperature of 303 K. The analysis of adsorption kinetics demonstrated that the removal of mercury(II) adhered closely to the pseudo-second-order model. Additionally, it displayed a three-stage intraparticle diffusion model throughout the entire adsorption process. The Langmuir model most accurately represented equilibrium data. The Alg@Mag/PPy NCs exhibited an estimated maximum adsorption capacity of 213.72 mg/g at 303 K, surpassing the capacities of most of the other polymer-based adsorbents previously reported. The thermodynamic analysis indicates that the removal of mercury(II) from the Alg@Mag/PPy NCs was endothermic and spontaneous in nature. In summary, this study suggests that Alg@Mag/PPy NCs could serve as a promising choice for confiscating toxic heavy metal ions from wastewater through adsorption.
Collapse
Affiliation(s)
| | | | - Changyoon Jeong
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea; (F.M.); (M.S.)
| |
Collapse
|
4
|
Alali AF, Almojil SF, Almohana AI, Almoalimi KT. Highly reusable bentonite clay@biochar@Fe 3O 4 nanocomposite for Hg(II) removal from synthetic and real wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27401-7. [PMID: 37171734 DOI: 10.1007/s11356-023-27401-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 04/29/2023] [Indexed: 05/13/2023]
Abstract
The present research investigates the performance of bentonite clay@biochar@Fe3O4 nanocomposite in removing mercury ions (Hg2+) from aqueous media. The physical and structural properties of bentonite clay@biochar@Fe3O4 were determined using Brunauer-Emmett-Teller (BET), vibrating-sample magnetometer (VSM), transmission electron microscopy (TEM), energy-dispersive X-ray (EDX), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), and Raman analyses. The highest uptake efficiency of Hg2+ was obtained at pH 6, Hg2+ concentration of 10 mg/L, contact time of 80 min, and the composite dose of 1.5 g/L. Under these conditions, the uptake efficiency of bentonite clay@biochar@Fe3O4 and bentonite clay was obtained as 98.78% and 97.67%, respectively, which are remarkable values. Also, the qmax values in Hg2+ removal using bentonite clay@biochar@Fe3O4 and bentonite clay were obtained as 66.66 and 60.98 mg/g, respectively. Moreover, the uptake process of Hg2+ ions using bentonite clay@biochar@Fe3O4 nanocomposite and bentonite was spontaneous, physical, favorable, and exothermic. Besides, the impact of various divalent ions such as Co2+, Cu2+, Pb2+, Ni2+, and Zn2+ on the removal efficiency of Hg2+ was studied. The results showed that Co2+ and Zn2+ ions have the highest and lowest interference effect in Hg2+ removal, respectively. Also, the reusability of both adsorbents showed that they have high stability and can be used for at least 5 cycles with high uptake efficiency. Additionally, the removal efficiency of chemical oxygen demand (COD), biochemical oxygen demand (BOD5), Hg2+, As3+, and As5+ from real wastewater using bentonite clay@biochar@Fe3O4 was obtained as 37.5%, 28.9%, 65%, 60.5%, and 50%, respectively, indicating its remarkable performance.
Collapse
Affiliation(s)
- Abdulrhman Fahmi Alali
- Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, 5, Riyadh, 11421, Saudi Arabia
| | - Sattam Fahad Almojil
- Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, 5, Riyadh, 11421, Saudi Arabia.
| | - Abdulaziz Ibrahim Almohana
- Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, 5, Riyadh, 11421, Saudi Arabia
| | - Khaled Twfiq Almoalimi
- Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, 5, Riyadh, 11421, Saudi Arabia
| |
Collapse
|
5
|
Wang Z, Liu Y, Zhang W, Wang Y, Xu H, Yang L, Feng J, Hou B, Li M, Yan W. Selective mercury adsorption and enrichment enabled by phenylic carboxyl functionalized poly(pyrrole methane)s chelating polymers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159870. [PMID: 36328257 DOI: 10.1016/j.scitotenv.2022.159870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Mercury decontamination from water requires highly effective and efficient methods for maintaining public health and environmental protection. Herein, based on the coordination theory between functional groups and metal ions, we proposed phenylic carboxyl group-based poly(pyrrole methane)s (PPDCBAs) as highly efficient mercury removal materials for environmental remediation applications. It was found that PPDCBAs can efficiently adsorb and remove mercury(II) from aqueous solutions by functionalizing the molecular structure with phenylic carboxyl groups. Among the as-prepared PPDCBAs, poly[pyrrole-2, 5-diyl (4-carboxybenzylidane)] (PPD4CBA) with the carboxyl group at the para position can not only adsorb mercury over 1400 mg⋅g-1 but also achieve a 92.5 % mercury(II) uptake within 100 min by a very low dosage of 0.1 g⋅L-1. In addition, PPDCBAs exhibited excellent adsorption selectivity for mercury(II) compared with copper(II), cadmium(II), zinc(II) and lead(II). Furthermore, as determined by Fourier transform infrared (FT-IR) spectra, X-ray photoelectron spectroscopy (XPS) and the density functional theory (DFT) calculation, the mercury removal was found to be mainly dependent on the high density of chelating sites, the phenylic carboxyl moieties, which helped us to realize an ultra-trace amount mercury removal (from 10.8 μg⋅L-1 to 0.6-0.8 μg⋅L-1) for meeting drinking water standard requirements (1.0 μg⋅L-1).
Collapse
Affiliation(s)
- Zhenyu Wang
- Department of Environmental Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yunpeng Liu
- Department of Environmental Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Wenlong Zhang
- Department of Environmental Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China; School of Eco-Environment, Hebei University, Baoding 071002, China
| | - Yubing Wang
- Department of Environmental Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Hao Xu
- Department of Environmental Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Liu Yang
- Department of Environmental Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jiangtao Feng
- Department of Environmental Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China; Jiangsu Engineering Laboratory of New Materials for Sewage Treatment and Recycling, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Bo Hou
- School of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, UK.
| | - Mingtao Li
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Wei Yan
- Department of Environmental Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| |
Collapse
|
6
|
Guo Z, Wang Z, Liu J, Sun Y, Yang L, Feng J, Hou B, Yan W. Efficient Mercury(II) Capture by Functionalized Poly(pyrrole methane)s: the Role of Chloro and Imino Groups. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
|
7
|
Zhao X, Gao X, Zhang YN, Wang M, Gao X, Liu B. Construction of dual sulfur sites in metal-organic framework for enhanced mercury(II) removal. J Colloid Interface Sci 2022; 631:191-201. [DOI: 10.1016/j.jcis.2022.10.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/04/2022] [Accepted: 10/29/2022] [Indexed: 11/07/2022]
|
8
|
Zhu M, Wang X, Huang Y, Yue L, Zhong S, Zeng L. Synthesis of thiol‐functionalized resin and its adsorption of heavy metal ions. J Appl Polym Sci 2022. [DOI: 10.1002/app.52976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Meiling Zhu
- Key Laboratory of the Assembly and Application of Organic Functional Molecules Hunan Normal University Changsha China
| | - Xiaolin Wang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules Hunan Normal University Changsha China
| | - Yun Huang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules Hunan Normal University Changsha China
| | - Ling Yue
- Key Laboratory of the Assembly and Application of Organic Functional Molecules Hunan Normal University Changsha China
| | - Shihua Zhong
- Key Laboratory of the Assembly and Application of Organic Functional Molecules Hunan Normal University Changsha China
| | - Lihua Zeng
- Key Laboratory of the Assembly and Application of Organic Functional Molecules Hunan Normal University Changsha China
| |
Collapse
|
9
|
Lei M, Yang L, Shen Y, Yang L, Sun J. Efficient Adsorption of Anionic Dyes by Ammoniated Waste Polyacrylonitrile Fiber: Mechanism and Practicability. ACS OMEGA 2021; 6:19506-19516. [PMID: 34368537 PMCID: PMC8340109 DOI: 10.1021/acsomega.1c01780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/18/2021] [Indexed: 05/15/2023]
Abstract
Adsorption is one of the commonly used methods in wastewater treatment, but it has the problem of high cost and a complicated production process. In this paper, a low-cost and efficient decolorizing adsorbent was successfully prepared based on waste polyacrylonitrile fiber (PANF). The waste PANF was ammoniated by propylene diamine derivates (PANAMF), and benzylamine (PANABMF) and quaternary ammonium ions (PANQMF) were introduced for PANAMF to regulate hydrophilicity and hydrophobicity. With acidic red 249 as the model anionic dye, influences of the adsorption center structure, the degree of modification, the concentration of acid, the dye structure, and the auxiliary agent in the solution on the dye adsorption performance were studied. Isothermal models, kinetic models, reusability, and continuous application ability of the fiber adsorbent were discussed. PANAMF, PANABMF, and PANAQF exhibit excellent adsorption performance compared to the common adsorbent. After protonation, the saturation adsorption value can reach 2051.3 mg/g for PANAMF. PANAMF also exhibited excellent reusability, and the adsorption capacity after being reused eight times still can keep 72.7% of that for the first time. The adsorption of the anionic dye for PANAMF is a chemisorption process, and the rate-determining step is changed from the diffuse step to the adsorption on the surface with the adsorption time. PANAMF can also be used in the continuous flow process, and the absorption amount is similar to that in the batch adsorption, which shows excellent commercial application potential.
Collapse
Affiliation(s)
- Manjun Lei
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Lihui Yang
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Yifeng Shen
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Lei Yang
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Jie Sun
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| |
Collapse
|
10
|
Zhang L, Xing L, Liu J, Qi T, Li M, Wang L. Synchronous catalysis of sulfite oxidation and abatement of Hg2+ in wet desulfurization using one-pot synthesized Co-TUD-1/S. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
11
|
Wan K, Wang G, Xue S, Xiao Y, Fan J, Li L, Miao Z. Preparation of Humic Acid/l-Cysteine-Codecorated Magnetic Fe 3O 4 Nanoparticles for Selective and Highly Efficient Adsorption of Mercury. ACS OMEGA 2021; 6:7941-7950. [PMID: 33778305 PMCID: PMC7992173 DOI: 10.1021/acsomega.1c00583] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/03/2021] [Indexed: 05/12/2023]
Abstract
Humic acid and l-cysteine-codecorated magnetic Fe3O4 nanoparticles (HA/LC-MNPs) were synthesized using a coprecipitation method. Humic acid fractions abundant with carboxyl and hydroxyl groups can be selectively coated on the surface of MNPs during synthesis. HA/LC-MNPs with abundant heteroatoms (N, S, and O) show excellent removal capacity, great selectivity, and also fast trapping of Hg2+ in a wide pH range. The adsorption capacity of HA/LC-MNPs for Hg2+ can reach 206.5 mg/g, and the chemisorption was attributed to the major adsorption form. In competitive adsorption, HA/LC-MNPs preferentially adsorbed Hg2+ with an affinity order of Hg2+ > > Pb2+ > Cu2+ ≫ Zn2+ > Cd2+. In total, 93.91% of Hg2+ can be quickly captured in the presence of a 6000 times higher concentration of competing metal ions (Pb2+, Cu2+, Cd2+, and Zn2+) within 30 min. The adsorption mechanism was analyzed using X-ray photoelectron spectroscopy (XPS). It suggested that the HA/LC-MNPs enhanced the adsorption capacity of Hg2+ because of the complexing abilities of the multiple thiol, amino, and carboxyl groups in sorbents with Hg2+, the ion exchange ability of the carboxyl group, and the negative charge surface. All in all, HA/LC-MNPs are a potentially useful and economic material for the selective removal of Hg2+ from polluted water.
Collapse
Affiliation(s)
- Keji Wan
- National
Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Guoqiang Wang
- School
of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Shuwen Xue
- School
of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Yawen Xiao
- School
of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Jinjin Fan
- School
of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Longdi Li
- School
of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Zhenyong Miao
- School
of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| |
Collapse
|
12
|
Maity S, Naskar N, Jana B, Lahiri S, Ganguly J. Fabrication of thiophene-chitosan hydrogel-trap for efficient immobilization of mercury (II) from aqueous environs. Carbohydr Polym 2021; 251:116999. [PMID: 33142568 DOI: 10.1016/j.carbpol.2020.116999] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/21/2020] [Accepted: 08/23/2020] [Indexed: 12/07/2022]
Abstract
The fabrication of thiophene-chitosan (TCS) hydrogel has been carried out to show the excellent binding performance of Hg(II) from an aqueous solution of heavy metal ions in presence of thiophene moiety within the hydrogel network. Thiophene moiety has been implanted within chitosan, a wild bio-resources, through a facile Schiff base condensation strategy with 2-thiophenecarboxaldehyde to develop a three-dimensional network of TCS hydrogel. The parameters influencing adsorption capacity such as pH, volume of functional agent, contact time, amount of the hydrogel are included to broaden the in-depth study for the adsorption window of Hg(II) followed by the desorption and reusability performance of TCS. The results indicate that the TCS hydrogel for Hg(II) followed pseudo-second-order kinetics. Ethylenediaminetetraacetic acid (EDTA), acts as a better eluent compared to HCl to desorb Hg(II) and even after recurring adsorption/desorption cycles, removal efficacy of TCS hydrogel could be retained.
Collapse
Affiliation(s)
- Santu Maity
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Howrah, 711103, India
| | - Nabanita Naskar
- Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, India
| | - Biswajit Jana
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Howrah, 711103, India
| | - Susanta Lahiri
- Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, India.
| | - Jhuma Ganguly
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Howrah, 711103, India.
| |
Collapse
|
13
|
Chen C, Kang J, Shen J, Zhao S, Wang B, Chen Z, Chen Q. Selective and efficient removal of Hg (II) from aqueous media by a low-cost dendrimer-grafted polyacrylonitrile fiber: Performance and mechanism. CHEMOSPHERE 2021; 262:127836. [PMID: 32805657 DOI: 10.1016/j.chemosphere.2020.127836] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/23/2020] [Accepted: 07/25/2020] [Indexed: 05/27/2023]
Abstract
Polyacrylonitrile fiber was successfully modified with triazine-based dendrimer via grafting method as a promising adsorbent for removal of mercury species from aqueous media. The prepared adsorbent was characterized by elemental analysis, scanning electron microscope, Fourier transform infrared spectroscopy, porous structure analysis and X-ray photoelectron spectroscopy, providing the evidence of successful fabrication. The adsorption conditions were found via varying pH, dosage, coexisting substances, contact time, temperature and concentration. Adsorption performance, described better by the pseudo-second-order kinetics with intraparticle diffusion as rate controlling step and Langmuir isotherm model, indicated a chemisorption process with the maximum Langmuir adsorption amount of 227.64 mg g-1 for mercury ions. Thermodynamically, adsorption of mercury ions was spontaneous and endothermic. Desorption and regeneration experiments demonstrated that it could be reused in five successive adsorption cycles without significant loss of its original performance. Experimental data and density functional theory calculation disclosed the coordination geometries and chelating mechanism between the adsorbent and mercury ions. The proposed study would provide a new prospect for the purification of mercury in aqueous system by functionalizing commercial polyacrylonitrile fiber with dendrimers.
Collapse
Affiliation(s)
- Chao Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Jing Kang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Jimin Shen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Shengxin Zhao
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Binyuan Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Zhonglin Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Qian Chen
- School of Chemical Engineering, Southwest Forestry University, Kunming, 650224, China.
| |
Collapse
|
14
|
Chang L, Duan W, Chen A, Li J, Huang S, Tang H, Pan G, Deng Y, Zhao L, Li D, Zhao L. Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications. ROYAL SOCIETY OPEN SCIENCE 2020; 7:200324. [PMID: 32874631 PMCID: PMC7428276 DOI: 10.1098/rsos.200324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/04/2020] [Indexed: 06/01/2023]
Abstract
The need for an excellent antibacterial material that is sufficiently powerful to never develop bacterial resistance is urgent. In this study, a series of novel polyacrylonitrile-based fibres with chelated Ag ions (referred to as Ag-SH-PANF) were prepared by a two-step chemical modification process: grafting and chelating. The properties of the as-prepared Ag-SH-PANF were characterized by Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The antibacterial activities of Ag-SH-PANF were examined against pathogenic bacteria, and an antibacterial mechanism was explicated based on the release of Ag ions from the fibres' surfaces. The results showed that, although chelation occurred between the Ag ions and the grafted amino, sulfhydryl and disulfide groups, Ag-SH-PANF retained its fine microstructure and thermal stability. Moreover, Ag-SH-PANF displayed excellent antibacterial ability against pathogenic bacteria as well as good washing durability. In terms of the antibacterial mechanism, Ag ions are the main bactericidal agents in the role of catalysts and are not consumed in the antibacterial process. Nonetheless, a relatively higher concentration of Ag ions can accelerate the bactericidal process.
Collapse
Affiliation(s)
- Li Chang
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Wenjie Duan
- Institute of Chemistry, Henan Academy of Sciences, 450003 Zhengzhou, Henan, People's Republic of China
- School of Materials Science and Engineering, Zhengzhou University, 450000 Zhengzhou, Henan, People's Republic of China
| | - Anguo Chen
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Jianjun Li
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Siqi Huang
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Huijuan Tang
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Gen Pan
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Yong Deng
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Lining Zhao
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Defang Li
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Liang Zhao
- Institute of Chemistry, Henan Academy of Sciences, 450003 Zhengzhou, Henan, People's Republic of China
| |
Collapse
|
15
|
Zhang Y, Zeng X, Jiang X, Chen H, Long Z. Ce-based UiO-66 metal-organic frameworks as a new redox catalyst for atomic spectrometric determination of Se(VI) and colorimetric sensing of Hg(II). Microchem J 2019. [DOI: 10.1016/j.microc.2019.103967] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|