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Li H, Bie W, Zhang S, Zhang L, Sun X, Cai T, Wang Z, Wei M, Kong F, Wang W. Porous β-cyclodextrin polymers for rapid and efficient removal of organic micropollutants from water: The role of sulfonation and porosity on adsorption performance. CHEMOSPHERE 2024; 363:142740. [PMID: 38971442 DOI: 10.1016/j.chemosphere.2024.142740] [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: 03/20/2024] [Revised: 06/24/2024] [Accepted: 06/28/2024] [Indexed: 07/08/2024]
Abstract
Removal of organic micropollutants (OMPs) from water, especially hydrophilic and ionized ones, is challenging for water remediation. Herein, porous β-cyclodextrin polymers (PCPs) with tailored functionalization were prepared based on molecular expansion strategy and sulfonation. Partially benzylated β-cyclodextrin was knotted by external crosslinker to form PCP1, and knotting PCP1 by expansion molecule generated PCP2. PCP1 and PCP2 were sulfonated to achieve PCP1-SO3H and PCP2-SO3H. Based on systematical adsorption evaluation toward multiple categories of OMPs, it was found that the introduced strong polar -SO3H group could bring strong hydrogen bonding and electrostatic interactions. PCP2 showed the highest surface (998.97 m2/g) displayed more excellent adsorption performance toward neutral and anionic OMPs, and the adsorption mechanism for this property of PCP2 was dominated by hydrophobic interactions. In addition, the PCP1-SO3H with the lowest surface area (39.75 m2/g) rather than PCP2-SO3H with higher surface (519.28 m2/g) exhibited more superior adsorption towards hydrophilic and cationic OMPs, benefiting by hydrogen bonding and electrostatic interactions as well as appropriate porosity. These results not only confirmed the performance enhancement of PCPs through the integration of novel preparation strategy, but also provided fundamental guidance for PCPs design for water remediation.
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Affiliation(s)
- Hengye Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China.
| | - Wenwen Bie
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China
| | - Shuzhao Zhang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China
| | - Lin Zhang
- Comprehensive Testing Center, Yancheng Customs, Yancheng, 224002, PR China
| | - Xiaoyu Sun
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China
| | - Tianpei Cai
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China
| | - Zhongxia Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China
| | - Meijie Wei
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China
| | - Fenying Kong
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224002, PR China; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, PR China.
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Mahmoudi Asl A, Karami B, Farahi M, Karimi Z. Dual Brønsted acidic-basic function immobilized on the 3D mesoporous polycalix [4]resorcinarene: As a highly recyclable catalyst for the synthesis of spiro acenaphthylene/indene heterocycles. Heliyon 2024; 10:e29277. [PMID: 38660255 PMCID: PMC11040065 DOI: 10.1016/j.heliyon.2024.e29277] [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: 01/21/2024] [Revised: 03/13/2024] [Accepted: 04/03/2024] [Indexed: 04/26/2024] Open
Abstract
In this study, a novel dual Brønsted acidic-basic nano-scale porous organic polymer catalyst, PC4RA@SiPr-Pip-BuSO3H, was synthesized through various steps: preparation of a 3D network of polycalix, modification with (3-chloropropyl)-trimethoxysilane, then functionalization of polymer with piperazine and n-butyl sulfonic acid under the provided conditions. The catalyst characterization was performed by FT-IR, TGA, EDS, elemental mapping, PXRD, TEM, and FE-SEM analyses, confirming high chemical stability, activity, recoverability, and excellent covalent anchoring of functional groups. So, the designed catalyst was utilized for preparing spiro-acenaphthylene and amino-spiroindene heterocycles, providing good performance with a high yield of the corresponding products. Accordingly, this catalyst can be used in different organic transformations. Necessary experiments were conducted for the recyclability test of the polymeric catalyst, and the results showed the PC4RA@SiPr-Pip-BuSO3H catalyst can be reused 10 times without any decrease in its activity or quality with excellent stability. The structure of resultant spiro heterocycles was confirmed using 1H NMR, 13C NMR, and FT-IR.
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Affiliation(s)
- Aref Mahmoudi Asl
- Department of Chemistry, Yasouj University, P. O. Box 353, Yasouj, 75918-74831, Iran
| | - Bahador Karami
- Department of Chemistry, Yasouj University, P. O. Box 353, Yasouj, 75918-74831, Iran
| | - Mahnaz Farahi
- Department of Chemistry, Yasouj University, P. O. Box 353, Yasouj, 75918-74831, Iran
| | - Zahra Karimi
- Department of Chemistry, Yasouj University, P. O. Box 353, Yasouj, 75918-74831, Iran
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Cao XM, Zhang AY, Cui WR, Liu LY, Zhang YX, Lin H, Zhang Y. Azo-Linked Porous Polycalix[ n]arenes for the Efficient Removal of Organic Micropollutants from Water. ACS APPLIED MATERIALS & INTERFACES 2024; 16:957-965. [PMID: 38151466 DOI: 10.1021/acsami.3c18069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Developing novel porous adsorbents for efficient wastewater treatment is significant to the environment protection. Herein, three porous polycalix[n]arenes (n = 4, 6, and 8) which had varying cavity sizes of the macrocycle (Azo-CX4P, Azo-CX6P, and Azo-CX8P) were prepared under mild conditions and tested for their potential application in water purification. Azo-CX8P with a larger cavity size of the macrocycle outperformed Azo-CX4P and Azo-CX6P in screening studies involving a range of organic micropollutants. It was proved that Azo-CX8P was especially efficient in the removal of cationic dyes because of its high negative surface charge. In terms of the adsorption of Rhodamine B with Azo-CX8P, the pseudo-second-order rate constant reaches 5.025 g·mg-1·min-1 with the maximum adsorption capacity being 1345 mg·g-1. These values are significantly higher compared with those recorded for most adsorbents. In addition, the easily prepared Azo-CX8P can be reused at least six times without a loss of the adsorption efficiency, demonstrating its potential use in water purification.
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Affiliation(s)
- Xiao-Mei Cao
- Key Laboratory of Organo-pharmaceutical Chemistry, College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Ai-Ying Zhang
- Key Laboratory of Organo-pharmaceutical Chemistry, College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Wei-Rong Cui
- Key Laboratory of Organo-pharmaceutical Chemistry, College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Lu-Yao Liu
- Key Laboratory of Organo-pharmaceutical Chemistry, College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Yu-Xuan Zhang
- Key Laboratory of Organo-pharmaceutical Chemistry, College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Hui Lin
- Jiangxi Provincial Key Laboratory of Low-Carbon Solid Waste Recycling, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Yong Zhang
- Key Laboratory of Organo-pharmaceutical Chemistry, College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
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Lu M, Wang Y, Yu J, Li D, Zhao Q, Chi R. Treating waste with waste: Adsorption of anionic dyes in wastewater with surfactant-modified phosphogypsum. ENVIRONMENTAL RESEARCH 2023; 237:116963. [PMID: 37619625 DOI: 10.1016/j.envres.2023.116963] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/19/2023] [Accepted: 08/22/2023] [Indexed: 08/26/2023]
Abstract
Phosphogypsum (PG) is a solid waste generated during the wet process of phosphoric acid production. The environmental-friendly disposal and recycling of PG is vital in the field of environmental solid waste treatment. In this study, PG is used for adsorbent of dyes in wastewater to achieve the goal of recycling waste with waste. Surfactant-modified phosphogypsum (ODBAC@PG) was prepared using octadecyl dimethyl benzyl ammonium chloride (ODBAC) as modifier. ODBAC@PG exhibits high adsorption capability for anionic dyes (methyl blue (MeB) and indocyanine carmine (IC)). The pseudo-second-order kinetic model fits the kinetic experimental data for the adsorption of two organic anionic dyes. Langmuir adsorption isotherm fits the adsorption characteristics of MeB and IC on ODBAC@PG, exhibiting a monolayer adsorption pattern. Thermodynamic parameters indicate the spontaneous and exothermic properties of MeB and IC on ODBAC@PG. MeB and IC have antagonistic effects on each other in binary adsorption system. High adsorption capacity after six cycles of experiments demonstrates the high reusability of ODBAC@PG. The nature for the adsorption includes electrostatic interaction, hydrogen bond and hydrophobic interaction. Using ODBAC@PG for dyes wastewater treatment can accomplish the goal of treating waste with waste and turning waste into treasure.
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Affiliation(s)
- Meng Lu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, PR China
| | - Yao Wang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, PR China
| | - Junxia Yu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China
| | - Dezeng Li
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, PR China.
| | - Qingbiao Zhao
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China; Hubei Three Gorges Laboratory, No. 1 Mazongling Rd, Xiaoting District, Yichang City, Hubei 443007, PR China.
| | - Ruan Chi
- Hubei Three Gorges Laboratory, No. 1 Mazongling Rd, Xiaoting District, Yichang City, Hubei 443007, PR China
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Li H, Han X, Zhang L, Yu W, Bie W, Wei M, Wang Z, Kong F, Wang W. Sulfonated polyhedral oligomeric silsesquioxane-cyclodextrin hybrid polymers for efficient removal of micropollutants from water. Carbohydr Polym 2023; 312:120832. [PMID: 37059548 DOI: 10.1016/j.carbpol.2023.120832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/09/2023] [Accepted: 03/15/2023] [Indexed: 04/03/2023]
Abstract
Herein, β-cyclodextrin-containing hybrid polymers (P1, P2 and P3) were prepared through crosslinking partially benzylated β-cyclodextrin (PBCD) by octavinylsilsesquioxane (OVS). P1 stood out in screening studies and the residual hydroxyl groups of PBCD was sulfonate-functionalized. The obtained P1-SO3Na showed greatly enhanced adsorption towards cationic MPs and maintained the excellent adsorption performance towards neutral MPs. The rate constants (k2) of cationic MPs upon P1-SO3Na were 9.8-34.8 times larger than those upon P1. The equilibrium uptakes of the neutral and cationic MPs upon P1-SO3Na were above 94.5 %. Meanwhile, P1-SO3Na demonstrated appreciable adsorption capacities, excellent selectivity, effective adsorption of mixed MPs at environmental levels and good reusability. These results confirmed the great potential of P1-SO3Na as effective adsorbent to remove MPs from water.
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Wang H, Han J, Li Z, Wang Z. Effective extraction of the metabolites of toluene and xylene based on a postsynthetic-modified magnetic covalent organic polymer. JOURNAL OF HAZARDOUS MATERIALS 2023; 447:130797. [PMID: 36680895 DOI: 10.1016/j.jhazmat.2023.130797] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/07/2023] [Accepted: 01/13/2023] [Indexed: 06/17/2023]
Abstract
Toluene and xylene are volatile organic compounds, and long-term exposure to toluene and xylene may cause brain structure and nervous system damage. To evaluate exposure to toluene and xylene in the environment, it is usually possible to monitor their metabolites in organisms, hippuric acid (HA) and methylhippuric acid (MHA). In this work, we designed a new magnetic solid phase extraction (MSPE) sorbent, zirconium postsynthetic-modified magnetic covalent organic polymer (Fe3O4@COP-COOZr), for purifying and enriching HA and 4-MHA. Zirconium ions were immobilized on the magnetic COP surface by postsynthetic modification without the use of additional coating layers or chelating ligands. The developed Fe3O4@COP-COOZr interacted with HA and 4-MHA through the π-π stacking effect and electrostatic interactions, as well as strong chelation with coordinatively unsaturated zirconium sites. The promising affinity material of Fe3O4@COP-COOZr in MSPE had high stability and recyclability. The established MSPE-HPLC-UV method showed low sorbent consumption (10 mg) and high sensitivity (LODs less than 0.1 μg L-1), and can be used for the analysis of HA and 4-MHA in real samples. The recoveries of the proposed method in real urine samples for the simultaneous determination of HA and 4-MHA were in the range of 83.5-103.2 %, and the RSDs were 0.9-7.1 %.
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Affiliation(s)
- Huiqi Wang
- Instrumental Analysis Center of Qingdao University, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Shandong 266071, China
| | - Jingjing Han
- Instrumental Analysis Center of Qingdao University, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Shandong 266071, China
| | - Zhanfeng Li
- Instrumental Analysis Center of Qingdao University, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Shandong 266071, China
| | - Zonghua Wang
- Instrumental Analysis Center of Qingdao University, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Shandong 266071, China.
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Wang K, Zhang S, Xu Q, Lian T, Xu Z, Jiang M, Liu P. Fabrication of Salt-tolerant Chitosan-based Polyelectrolyte Flocculant through Enhancing H-bond Hydration Effect for Treating and Recycling of Highly Saline Dyeing Wastewater. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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