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Chen LH, Ban C, Helal MH, El-Bahy SM, Zeinhom M, Song S, Zhao YG, Lu Y. Preparation and modification of polymer microspheres, application in wastewater treatment: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121807. [PMID: 39025011 DOI: 10.1016/j.jenvman.2024.121807] [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: 04/05/2024] [Revised: 06/19/2024] [Accepted: 07/07/2024] [Indexed: 07/20/2024]
Abstract
The removal of various pollutants from water is necessary due to the increasing requirements for the removal of various pollutants from wastewater and the quality of drinking water. Polymer microspheres are regarded as exemplary adsorbent materials due to their high adsorption efficiency, excellent adsorption performance, and ease of handling. Herein, the advantages and disadvantages of different preparation methods, modifications, applications and the current research status of polymer microspheres are summarized at large. Furthermore, the enhanced performance of modified composite microspheres is emphasized, including adsorption efficiency, thermal stability, and significant improvements in physical and chemical properties. Subsequently, the current applications and potential of polymeric microspheres for wastewater treatment, including the removal of inorganic and organic pollutants, heavy metal ions, and other contaminants are summarized. Finally, future research directions for polymer microspheres are proposed, outlining the challenges and solutions associated with the application of polymer microspheres in wastewater treatment.
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Affiliation(s)
- Li-Hui Chen
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Cao Ban
- Zhejiang Institute of Geosciences, Zhejiang, 310015, China
| | - Mohamed H Helal
- Department of Chemistry, Faculty of Arts and Science, Northern Border University, Rafha, Saudi Arabia
| | - Salah M El-Bahy
- Department of Chemistry, Turabah University College, Taif University, Turabah, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - M Zeinhom
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Shuang Song
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yong-Gang Zhao
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China.
| | - Yin Lu
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China.
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Athab ZH, Halbus AF, Atiyah AJ, Ali SSM, Al Talebi ZA. High-performance photocatalytic degradation and antifungal activity of chromium-doped nickel oxide nanoparticles. ANAL SCI 2024; 40:655-670. [PMID: 38261260 DOI: 10.1007/s44211-023-00499-y] [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: 08/13/2023] [Accepted: 12/13/2023] [Indexed: 01/24/2024]
Abstract
The elimination of pollutants such as dyes and fungi has become a tedious process hence there is a need for multifunctional materials that can be used for the removal or degradation of various pollutants from wastewater. Here, a nickel oxide nanoparticle (NiONPs) was synthesized by the co-precipitation method. In the current study, a composite of nickel oxide nanoparticles (NiONPs) was synthesized using nitrogen and chromium as dopants to create (N/NiONPs) and (Cr/N/NiONPs), respectively and used for the removal of dyes and fungi. The synthesized nanocomposites were characterized using zeta potential (ZP), scanning electron microscopy (SEM), X-rays diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The NiONPs, N/NiONPs and Cr/N/NiONPs were tested for the degradation of two dye pollutants, Reactive blue 13 (RB13) and eosin dye. The obtained results showed that Cr/N/NiONPs were more efficient than NiONPs and N/NiONPs for dye degradation by applying the same irradiation conditions. The Cr/N/NiONPs nanocomposites showed very good degradation efficiency of dye up to 94.2% for the RB13 and 90.8% for the eosin. We also examined the antifungal action of the NiONPs, N/NiONPs and Cr/N/NiONPs against Trichoderma fungus. The results showed that the Cr/N/NiONPs have an extremely strong antifungal impact on Trichoderma. This could be explained by the strong adhesion of Cr/N/NiONPs to the Trichoderma surface due to electrostatic attraction. This work has demonstrated that it is possible to create environmentally safe materials that can be used for the degradation of different dyes and the improvement of more effective antifungal treatments with lower active agent doses for fungus control with potential big economic benefits.
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Affiliation(s)
- Zahraa H Athab
- Environmental Research and Studies Center, University of Babylon, Hilla, Iraq
| | - Ahmed F Halbus
- Department of Chemistry, College of Science, University of Babylon, Hilla, Iraq.
| | - Abbas J Atiyah
- Department of Chemistry, College of Science, University of Babylon, Hilla, Iraq
| | - Shaimaa Satae M Ali
- Environmental Research and Studies Center, University of Babylon, Hilla, Iraq
| | - Z A Al Talebi
- Department of Chemistry, College of Science, University of Babylon, Hilla, Iraq
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3
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Yesmin S, Mahiuddin M, Nazmul Islam ABM, Karim KMR, Saha P, Khan MAR, Ahsan HM. Piper chaba Stem Extract Facilitated the Synthesis of Iron Oxide Nanoparticles as an Adsorbent to Remove Congo Red Dye. ACS OMEGA 2024; 9:10727-10737. [PMID: 38463303 PMCID: PMC10918656 DOI: 10.1021/acsomega.3c09557] [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: 11/30/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 03/12/2024]
Abstract
In this study, a straightforward, eco-friendly, and facile method for synthesizing iron oxide nanoparticles (IONPs) utilizing Piper chaba steam extract as a reducing and stabilizing agent has been demonstrated. The formation of stable IONPs coated with organic moieties was confirmed from UV-vis, FTIR, and EDX spectroscopy and DLS analysis. The produced IONPs are sufficiently crystalline to be superparamagnetic having a saturation magnetization value of 58 emu/g, and their spherical form and size of 9 nm were verified by XRD, VSM, SEM, and TEM investigations. In addition, the synthesized IONPs exhibited notable effectiveness in the removal of Congo Red (CR) dye with a maximum adsorption capacity of 88 mg/g. The adsorption kinetics followed pseudo-second-order kinetics, meaning the adsorption of CR on IONPs is mostly controlled by chemisorption. The adsorption isotherms of CR on the surface of IONPs follow the Langmuir isotherm model, indicating the monolayer adsorption on the homogeneous surface of IONPs through adsorbate-adsorbent interaction. The IONPs have revealed good potential for their reusability, with the adsorption efficiency remaining at about 85% after five adsorption-desorption cycles. The large-scale, safe, and cost-effective manufacturing of IONPs is made possible by this environmentally friendly process.
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Affiliation(s)
| | - Md. Mahiuddin
- Chemistry Discipline, Khulna University, Khulna9208, Bangladesh
| | | | | | - Prianka Saha
- Chemistry Discipline, Khulna University, Khulna9208, Bangladesh
| | | | - Habib Md. Ahsan
- Chemistry Discipline, Khulna University, Khulna9208, Bangladesh
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Bai Z, Rong D, Li M, Xu G, Liu S, Zeng J, Lv Y, Tang Y, Wen X. Hierarchical Mg/Al hydrotalcite oxide hollow microspheres with excellent adsorption capability towards Congo red. Dalton Trans 2024; 53:3744-3755. [PMID: 38299609 DOI: 10.1039/d3dt03816e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
A novel citrate anion-intercalated Mg/Al layered double hydroxide (CA-LDH) is synthesized via a one-step hydrothermal process. The synthesized CA-LDH is a hollow flower-like microsphere composed of thin nanoflakes (10 nm in thickness). After calcination, the formed Mg/Al layered double oxide (CA-LDO) hollow microspheres possess a high specific surface area of 247.8 m2 g-1 and a high pore volume of 0.97 cm3 g-1, which endow them with excellent adsorption ability towards Congo red (CR). The maximum adsorption capacity of CR onto CA-LDO can reach up to 1883 mg g-1. The significantly improved adsorption capacity of CA-LDO can be attributed to its unique structures of hierarchical hollow microspheres, in which the hierarchical porous shell layer provides enough adsorption sites to anchor the dye molecules, and the hollow core can preserve the absorbed dye. This study provides a promising novel adsorbent which can be used for efficient water remediation.
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Affiliation(s)
- Zeng Bai
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Daoqing Rong
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Ming Li
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Guilong Xu
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Shucheng Liu
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jianyun Zeng
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Yinghao Lv
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Yi Tang
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Xiaogang Wen
- School of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
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5
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Athab ZH, Halbus AF, Mohammed SB, Atiyah AJ, Ismael HI, Saddam NS, Baqir SJ, Alesary HF, Algburi S, Al-Ansari N. Comparison activity of pure and chromium-doped nickel oxide nanoparticles for the selective removal of dyes from water. Sci Rep 2024; 14:4032. [PMID: 38369532 PMCID: PMC10874945 DOI: 10.1038/s41598-024-53490-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/01/2024] [Indexed: 02/20/2024] Open
Abstract
The current study involves a synthesis of a composite of nickel oxide nanoparticles (NiONPs) with a chromium dopant to yield (Cr/NiONPs). Synthesis of nickel oxide was performed by the co-precipitation method. The synthesis of the composite was conducted by the impregnation method. FTIR, EDX, SEM, and XRD were used to characterize the synthesized materials. The synthesised materials' point zero charges (PZC) were performed using the potentiometric titration method. The obtained results show that the PZC for neat nickel oxide was around 5, and it was around 8 for Cr/NiONPs. The adsorption action of the prepared materials was examined by applying them to remove Reactive Red 2 (RR2) and Crystal Violate (CV) dyes from solutions. The outcomes demonstrated that Cr/NiONPs were stronger in the removal of dyes than NiONPs. Cr/NiONPs achieved 99.9% removal of dyes after 1 h. Adsorption isotherms involving Freundlich and Langmuir adsorption isotherms were also conducted, and the outcomes indicated that the most accurate representation of the adsorption data was offered by Langmuir adsorption isotherms. Additionally, it was discovered that the adsorption characteristics of the NiONPs and Cr/NiONPs correspond well with the pseudo-second-order kinetic model. Each of the NiONPs and Cr/NiONPs was reused five times, and the results display that the effectiveness of the removal of RR2 dye slightly declined with the increase in reuse cycles; it lost only 5% of its original efficiency after the 5 cycles. Generally, Cr/NiONPs showed better reusability than NiONPs under the same conditions.
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Affiliation(s)
- Zahraa H Athab
- Environmental Research and Studies Center, University of Babylon, Hilla, Iraq
| | - Ahmed F Halbus
- Department of Chemistry, College of Science, University of Babylon, Hilla, Iraq.
| | | | - Abbas J Atiyah
- Department of Chemistry, College of Science, University of Babylon, Hilla, Iraq
| | | | | | - Sadiq J Baqir
- Almustaqbal University College, Babylon, Hilla, Iraq
| | - Hasan F Alesary
- Department of Chemistry, College of Science, University of Kerbala, Karbala, Iraq
| | - Sameer Algburi
- College of Engineering Techniques, Al-Kitab University, Kirkuk, 36015, Iraq
| | - Nadhir Al-Ansari
- Department of Civil, Environmental and Natural Resources Engineering, Lulea University of Technology, Luleå, Sweden.
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6
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Stojković AS, Krstić NS, Đorđević DM, Milivojević M, Krstić IM. Comparative physicochemical analysis of galvanic sludge wastes. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2023; 58:459-468. [PMID: 37017246 DOI: 10.1080/10934529.2023.2196207] [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: 09/05/2022] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 06/19/2023]
Abstract
The paper provides the physicochemical analysis of galvanic sludge to determine the presence and concentration of toxic metals. Two sludges sampled from the same factory, but from different technological processes, alkaline galvanic sludge obtained from galvanizing process and acidic sludge generated from the chromium plating process were analyzed. Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES) revealed increased concentrations of toxic heavy metal ions Zn2+, Cr3+, Ni2+ and Pb2+ in the sludge from the galvanizing process and Cr3+, Cu2+, Ni2+, Pb2+, Cd2+ and Zn2+ from the chroming process. Moreover, the sludges were further physicochemically characterized by Reflectance Fourier Transform InfraRed Spectrometry (FTIR), Scanning Electron Microscopy with Energy-dispersive X-ray Spectroscopy Analysis (SEM-EDX) and X-ray diffraction (XRD). The results of ICP-OES were corroborated by FTIR. Analysis of FTIR spectra revealed the specific bands indicating the existence of metal oxides in the analyzed sludges, as well as the presence of organic substances, i.e. solvents and surfactants, used in the electroplating process. The analysis was accomplished following international norms and confirmed the increased concentrations of heavy metal ions from both sludges. In line with the regulations of the Environmental Protection Agency (EPA), the results proved the hypothesis that galvanic sludge is hazardous waste.
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Affiliation(s)
- Ana S Stojković
- Faculty of Occupational Safety, University of Nis, Niš, Serbia
| | - Nenad S Krstić
- Faculty of Sciences and Mathematics, University of Nis, Niš, Serbia
| | | | | | - Ivan M Krstić
- Faculty of Occupational Safety, University of Nis, Niš, Serbia
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Solanki K, Sharma S, Yadav S, Kaushik B, Rana P, Dixit R, Sharma RK. Hierarchical 3D Flower-like Metal Oxides Micro/Nanostructures: Fabrication, Surface Modification, Their Crucial Role in Environmental Decontamination, Mechanistic Insights, and Future Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300394. [PMID: 36950767 DOI: 10.1002/smll.202300394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Hierarchical micro/nanostructures are constructed by micro-scaled objects with nanoarchitectures belonging to an interesting class of crystalline materials that has significant applications in diverse fields. Featured with a large surface-to-volume ratio, facile mass transportation, high stability against aggregation, structurally enhanced adsorption, and catalytical performances, three dimenisional (3D) hierarchical metal oxides have been considered as versatile functional materials for waste-water treatment. Due to the ineffectiveness of traditional water purification protocols for reclamation of water, lately, the use of hierarchical metal oxides has emerged as an appealing platform for the remediation of water pollution owing to their fascinating and tailorable physiochemical properties. The present review highlights various approaches to the tunable synthesis of hierarchical structures along with their surface modification strategies to enhance their efficiencies for the removal of different noxious substances. Besides, their applications for the eradication of organic and inorganic contaminants have been discussed comprehensively with their plausible mechanistic pathways. Finally, overlooked aspects in this field as well as the major roadblocks to the implementation of these metal oxide architectures for large-scale treatment of wastewater are provided here. Moreover, the potential ways to tackle these issues are also presented which may be useful for the transformation of current water treatment technologies.
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Affiliation(s)
- Kanika Solanki
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Shivani Sharma
- Department of Chemistry, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - Sneha Yadav
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Bhawna Kaushik
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Pooja Rana
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Ranjana Dixit
- Department of Chemistry, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - R K Sharma
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
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8
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Highly adsorptive removal of Congo red from aqueous solution using TiO2 doped with Fe3+ nanoparticles. Colloid Polym Sci 2023. [DOI: 10.1007/s00396-023-05084-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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9
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Li Z, Mao Y, Yan X, Song Z, Liu C, Liu Z, Kang H, Yan X, Gu D, Zhang X, Huang Z. Design a flower-like magnetic graphite carbon microsphere for enhanced adsorption of 2,4-dichlorophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:83138-83154. [PMID: 35763142 DOI: 10.1007/s11356-022-21364-x] [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: 02/19/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
2,4-Dichlorophenol (2,4-DCP) is a hazardous chlorinated organic chemical, so its removal is an important task to protect the whole ecosystem and human health. During the material preparation, the magnetic graphitic carbon adsorbent (HFMCM) with a sparse sheet-like stacking structure was formed by interlayer assembly of nickel hydroxide nanosheets and hydrothermal glucose carbon. The conditions for optimal performance of the adsorbent are 45 °C and pH 5. The maximum adsorption capacity of HFMCM-180 for 2,4-DCP is 147.06 mg·g-1. Adsorption behavior in accordance with Langmuir isothermal model and pseudo-second-order kinetic models. The adsorbent remains selective for 2,4-DCP in metal ion solutions. More than 75% of the adsorption capacity is maintained after five cycles of adsorption. Electrostatic interaction, hydrogen bonding, and π-π bonding play a major role in the adsorption of 2,4-DCP by HFMCM. The adsorbent was glucose as the carbon source, nickel sulfate as the magnetic source, and hexamethylenetetramine as the precipitant. Its carbonization after pretreatment with different hydrothermal temperatures resulted in the synthesis of flower-like graphitic carbon spheres with magnetic properties. The interconnected pore channels on the adsorbent surface conferred large specific surface area to the material. 2,4-DCP was efficiently adsorbed by π-π stacking, hydrogen bonding, and electrostatic attraction within the pore channels with low spatial potential resistance.
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Affiliation(s)
- Zhaoyang Li
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Yanli Mao
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China.
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China.
| | - Xiaole Yan
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China
| | - Zhongxian Song
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China
| | - Chaopeng Liu
- School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450046, China
| | - Zuwen Liu
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Haiyan Kang
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China
| | - Xu Yan
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China
| | - Deming Gu
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China
| | - Xia Zhang
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China
| | - Zhenzhen Huang
- Henan University of Urban Construction, Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000, China
- School of Water Conservancy and Engineering, Zhengzhou University, Zhengzhou, 450001, China
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Gao S, Feng D, Chen F, Shi H, Chen Z. Multi-functional well-dispersed pomegranate-like nanospheres organized by ultrafine ZnFe2O4 nanocrystals for high-efficiency visible-light-Fenton catalytic activities. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129282] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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11
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Hassanien R, Hassan ZA, Al-Assy W, Ibrahim SM. Removal of toxic thymol sulfone phthalein dye from wastewater by using efficient adsorbent NiO nanoparticles. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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12
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Wang X, Cheng B, Zhang L, Yu J, Li Y. Synthesis of MgNiCo LDH hollow structure derived from ZIF-67 as superb adsorbent for Congo red. J Colloid Interface Sci 2022; 612:598-607. [PMID: 35016020 DOI: 10.1016/j.jcis.2021.12.176] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/25/2021] [Accepted: 12/27/2021] [Indexed: 11/30/2022]
Abstract
Adsorption materials with large specific surface area and porous structures exert a beneficial impact on improving the adsorption performance. In this work, MgNiCo LDH hollow structure (MNC HS) is fabricated through a simple one-step solvothermal method using ZIF-67 as the sacrificial template. Electron microscopy shows that the MNC HS retains the dodecahedral shape of ZIF-67. The as-prepared sample exhibits efficient adsorption for Congo red (CR) in water, which is due to the hierarchical structure and large specific surface area that provides more adsorption sites and electrostatic interaction. The CR adsorption process fits the pseudo-second-order model better by kinetics simulation; while Langmuir model is more accurate than Freundlich model in describing the adsorption isotherms of CR. The maximum adsorption capacity calculated by the Langmuir model can reach 1194.7 mg g-1, which is much higher than that of the sample MgNiCo LDH (MNC) synthesized by conventional methods. The cycle tests also show that the as-prepared adsorbent has good stability and recycling ability.
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Affiliation(s)
- Xing Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China
| | - Bei Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China
| | - Liuyang Zhang
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, PR China.
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, PR China.
| | - Youji Li
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, Hunan, PR China
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13
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Renewable SiO2 as support for NiO catalyst for regioselective synthesis of 1,4-disubstituted 1,2,3-triazoles from azide-alkyne cycloaddition in aqueous media. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112191] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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Rana P, Jeevanandam P. Synthesis of NiO Nanoparticles via Calcination of Surfactant Intercalated Layered Nickel Hydroxides and their Application as Adsorbent. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02237-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Mogale R, Akpomie KG, Conradie J, Langner EHG. Dye adsorption of aluminium- and zirconium-based metal organic frameworks with azobenzene dicarboxylate linkers. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 304:114166. [PMID: 34864408 DOI: 10.1016/j.jenvman.2021.114166] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/18/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
The high efficiency of metal-organic-frameworks (MOFs) such as the ZIF, MIL and UiO type species in dye adsorption is well established. Recently, an emerging class of photoresponsive azobenzene-based MOFs has found suitable application in gas adsorption. However, there is a dearth of research on their use in the adsorption of dyes and other water pollutants. In this research, two microporous photoresponsive azobenzene dicarboxylate MOFs of Al3+ (Al-AZB) and Zr4+ (Zr-AZB) were synthesized for the adsorption of congo red (CR) dye. The surface and textural properties of the synthesized MOFs were characterized by FTIR, PXRD, SEM, TGA, BET and pore analysis. Both MOFs were crystalline, thermally stable up to 300 °C and stable in aqueous medium at room temperature. The Al-AZB displayed a higher surface area (2718 m2/g) than the Zr-AZB (1098 m2/g), which significantly impacted the higher adsorption of CR. Besides, pore volumes of 0.86 cm3/g and 0.35 cm3/g were obtained for Al-AZB and Zr-AZB, respectively. The maximum adsorption capacity of Al-AZB and Zr-AZB was 456.6 mg/g and 128.9 mg/g, respectively, with the former superior to other potent adsorbents. The pseudo-second-order and Langmuir models were well correlated with the dye uptake on the MOFs. Thermodynamics revealed random and endothermic sorption of CR dominated by chemisorption, while efficient regeneration and reuse of both MOFs were achieved using dimethylformamide as eluent. The results proved the potency of the synthesized photoresponsive MOFs, as highly efficient and reusable materials for dye adsorption.
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Affiliation(s)
- Refilwe Mogale
- Chemistry Department, University of the Free State, Bloemfontein, 9300, South Africa.
| | - Kovo G Akpomie
- Chemistry Department, University of the Free State, Bloemfontein, 9300, South Africa; Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - Jeanet Conradie
- Chemistry Department, University of the Free State, Bloemfontein, 9300, South Africa
| | - Ernst H G Langner
- Chemistry Department, University of the Free State, Bloemfontein, 9300, South Africa.
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Wang D, Zhu Q, Xing Z, Fang L. Control of chloride ion corrosion by MgAlO x/MgAlFeO x in the process of chloride deicing. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:9269-9281. [PMID: 34505244 DOI: 10.1007/s11356-021-16205-2] [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: 05/21/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Adding a corrosion inhibitor to the chloride deicing salt can prevent the corrosion and pollution of Cl-, which is very important. Layered double hydroxide (LDHs), calcined at high temperature is used as adsorbents to remove various anionic contaminants, and it can reduce the freezing point of solution after adsorbing anions. Therefore, this paper reports the use of calcined LDHs as corrosion inhibitors in deicing salts, which are denoted as MgAlOx or MgAlFeOx depending on the preparation element. By analyzing the removal efficiency and the freezing point of MgAlOx and MgAlFeOx to Cl-, the feasibility of the study was determined. Resulted that the removal efficiency to Cl- of MgAlFeOx at low temperature (0 ± 2 °C) and room temperature (25 ± 2 °C) was higher than that of MgAlOx, reaching 39.4% and 85.60%, respectively. And the freezing point of MgAlFeOx was lower than that of MgAlOx, the value was -12.0 °C. At the same time, we also found that CaCl2-MgAlOx and CaCl2-MgAlFeOx significantly reduced the corrosion of carbon steel and concrete compared with chloride salts, and CaCl2-MgAlFeOx had the lowest corrosion degree. Hence, MgAlFeOx was chosen as the corrosion inhibitor in chloride deicing salt. The metal molar ratio, synthesis temperature, and calcination temperature for preparation of MgAl/MgAlFe-LDHs were determined by XRD and TG-DSC analysis that were 9/2/1, 120 °C, and 500 °C, respectively. Characterization methods such as Zeta, XRD, XPS, BET, and SEM were used to study in detail the characteristic changes of MgAlFe-LDHs and MgAlFeOx after Fe3+ was added, and the mechanism of corrosion inhibitors was further determined that was achieved by adsorption and neutralization.
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Affiliation(s)
- Dongdong Wang
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
- The Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Qi Zhu
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China.
- The Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China.
| | - Zipeng Xing
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China.
- The Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China.
| | - Lei Fang
- School of Food Engineering, Harbin University, Harbin, 150080, China.
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Wu Z, Wang X, Yao J, Zhan S, Li H, Zhang J, Qiu Z. Synthesis of polyethyleneimine modified CoFe2O4-loaded porous biochar for selective adsorption properties towards dyes and exploration of interaction mechanisms. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119474] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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18
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Song W, Qian L, Yang Y, Zhao Y, Miao Z, Zhang Q. Constructing High-Recognition Protein-Imprinted Materials Using "Specially Designed" Block Macromolecular Chains as Functional Monomers and Crosslinkers. ACS APPLIED MATERIALS & INTERFACES 2021; 13:54428-54438. [PMID: 34734527 DOI: 10.1021/acsami.1c18296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The use of a macromolecularly functional monomer and crosslinker (MFM) to stabilize and imprint a template protein is a new method to construct high-recognition protein-imprinted materials. In this study, for the first time, a "specially designed" block MFM with both "functional capability" and "crosslinking capability" segments was synthesized via reversible addition-fragmentation chain-transfer polymerization and used to fabricate bovine serum albumin (BSA)-imprinted microspheres (SiO2@MPS@MIPs-MFM) by the surface imprinting strategy. Results from circular dichroic spectrum experiments reflected that the block MFM could maintain the natural form of BSA, whereas its corresponding and equivalent micromolecularly functional monomer (MIM) seriously destroyed the secondary structure of proteins. Batch rebinding experiments showed that the maximum adsorption capacity and imprinting factor of SiO2@MPS@MIPs-MFM reached 314.9 mg g-1 and 4.02, which were significantly superior to that of MIM-based imprinted materials. In addition, since the crosslinking capability segments in block MFM involved zwitterionic functional groups with a protein-repelling effect, SiO2@MPS@MIPs-MFM showed better specific rebinding ability than the imprinted material prepared by MFM without this component. Besides, scanning electron microscopy and transmission electron microscopy images showed that the shell thickness of SiO2@MPS@MIPs-MFM was approximately 15 nm, and such a thin imprinted layer ensured its rapid adsorption equilibrium (120 min). As a result, SiO2@MPS@MIPs-MFM revealed fantastic selectivity and recognition ability in a mixed protein solution and could efficiently extract BSA from biological samples of bovine calf serum. The proposal of block MFM enriched the options and designability of monomers in protein imprinting technology, thereby laying a foundation for developing high-performance protein-imprinted materials.
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Affiliation(s)
- Wenqi Song
- Xi' an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi'an 710123, PR China
| | - Liwei Qian
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Yuxuan Yang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Yuzhen Zhao
- Xi' an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi'an 710123, PR China
| | - Zongcheng Miao
- Xi' an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi'an 710123, PR China
- School of Artificial Intelligence, Optics and Electronics (iOPEN), Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Qiuyu Zhang
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, PR China
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19
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Mondal S, Das S, Gautam UK. Defect-rich, negatively-charged SnS 2 nanosheets for efficient photocatalytic Cr(VI) reduction and organic dye adsorption in water. J Colloid Interface Sci 2021; 603:110-119. [PMID: 34186388 DOI: 10.1016/j.jcis.2021.06.092] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/29/2021] [Accepted: 06/14/2021] [Indexed: 11/16/2022]
Abstract
Nanostructures of layered materials have gained increasing attention in photocatalytic and water-treatment processes. Herein, we report on sub-30 nm SnS2 nanosheets (NSs) which can perform photocatalytic reduction of Cr(VI) to Cr(III) quite efficiently on one hand, while removes large quantities of toxic organic dye molecules by choosing an adsorption mode of operation over photo-degradation on the other hand, unlike most other SnS2 nanostructures. The NSs have a highly extended crystallinity growing perpendicular to the (001) lattice direction but exhibit poor X-ray diffraction for the 10 l (1 = 1,2,3…) lattice planes. With such defects, the NSs have a narrow bandgap of 2.21 eV and exhibit a significant photocurrent density at near band-edge illumination. Cr(VI) photo-reduction using the SnS2 NSs follows a first-order reaction kinetics (rate constant of 0.10 min-1), five-fold higher than commercial TiO2 (P-25). Furthermore, the NSs adsorb Rhodamine B dye molecules from an aqueous solution by forming a monolayer of dye molecules following a pseudo-second-order kinetic model and exhibit an adsorption capacity of ∼ 53.28 mg/g. We show that the NSs have a Zeta potential of ∼ -22 eV and preferably adsorb cationic dyes only. Thus the SnS2 NSs can be effective for Cr(VI) contaminated waste-water treatment in a photocatalytic manner and can also act as a potential adsorbent for polluting dye molecules either in the presence or absence of sunlight. While both these activities are known for SnS2 as well as other materials, the competitive nature of the two mechanisms while each of them is a possibility has never been investigated. Therefore, besides the high activities, the study highlights the presence of different active sites on the material surface that can respond preferentially to either inorganic or organic impurities.
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Affiliation(s)
- Sanjit Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India
| | - Sandita Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India
| | - Ujjal K Gautam
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India.
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20
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Zare M. Facile synthesis of hollow mesoporous MgO nanospheres as ultra-high performance and reusable adsorbent. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2020.1737103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Maryam Zare
- Department of Basic Sciences, Golpayegan University of Technology, Golpayegan, Iran
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21
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Ren B, Miao J, Wang S, Xu Y, Zhai Z, Dong X, Liu Z. Nitrogen-rich melamine-based carbon nanosheets prepared via polyvinyl pyrrolidone/ammonia chloride-mediate strategy as an excellent adsorbent for methylene blue adsorption. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.03.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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22
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Zare M. Designing MgO decorated on two kinds of silica spheres and the comparison of their adsorption properties for Congo red. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1731542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Maryam Zare
- Department of Basic Sciences, Golpayegan University of Technology, Golpayegan, Iran
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23
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Zheng Y, Cheng B, Fan J, Yu J, Ho W. Review on nickel-based adsorption materials for Congo red. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123559. [PMID: 32798792 DOI: 10.1016/j.jhazmat.2020.123559] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 07/17/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
Excessive synthetic dyestuffs in the aquatic environment pose various ecological and health issues that are detrimental to sustainable development. Adsorption is considered a feasible technique of eliminating dye pollutants from the water environment because of its advantages of high efficiency, low cost, easy operation, and absence of secondary pollution. Among the many dyes, Congo red (CR) is a widely used azo dye. Nickel-based materials, including nickel hydroxide, nickel oxide, nickel-containing layered double hydroxides, nickel-based spinel and metal-organic frameworks, metallic nickel, nickel-based sulfide, and nickel composites, have been extensively studied for CR adsorption due to their morphological diversity, large specific surface area, and strong affinity toward CR. However, fabricating nickel-based adsorbents with high efficiency and stability and excellent recyclability for practical application remains a challenge. This review outlines the research progress of nickel-based materials in CR adsorption. The interaction between CR molecules and nickel-based adsorbents is systematically presented, and the possible adsorption mechanisms are summarized. Finally, the challenges and future development directions of the practical application of nickel-based adsorbent materials are proposed.
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Affiliation(s)
- Yingqiu Zheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan, 430070, China
| | - Bei Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan, 430070, China
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan, 430070, China.
| | - Wingkei Ho
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N. T., Hong Kong, China.
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24
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Zhou S, Fu Z, Xia L, Mao Y, Zhao W, Wang A, Zhang C, Ding C, Xu W. In situ synthesis of ternary hybrid nanocomposites on natural Juncus effusus fiber for adsorption and photodegradation of organic dyes. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117671] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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25
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High-Strength, Waterproof, Corrosion-Resistant Nano-Silica Carbon Nanotube Cementitious Composites. MATERIALS 2020; 13:ma13173737. [PMID: 32847009 PMCID: PMC7503292 DOI: 10.3390/ma13173737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 12/05/2022]
Abstract
This study aims to prepare a nano-silica-carbon nanotube (NS-CNT) elastic composite using NS (nano-silica), CNTs (carbon nanotube), and (D3F) trifluoropropyltrimethoxysilane. The results show that the activated NS could promote the hydrolysis of D3F. Polymerization products of nano-silica and D3F are uniformly adhered onto the surfaces of CNTs, thereby forming a NS-CNT composite. The composite is composed of irregular ellipsoids of 3–12 μm in length and 2–10 μm in diameter. The activated NS-CNT composite material effectively promotes the further hydration of (CaOH)2 in the cement to form hydrated calcium silicate, and further dehydration–condensation between the surface hydroxyl group of the composite material and the inherent hydroxyl group of (CaOH)2. The cementitious composite-based composites containing the activated NS-CNT exhibit high mechanical strengths, high water resistances, and good durability and corrosion resistance. The chemical characterizations reveal the morphology, nucleation mode of the composite, and its influence on the hydration structure and products of cementitious composite.
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26
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Yusuf M, Song K, Geng S, Fazhi X. Adsorptive removal of anionic dyes by graphene impregnated with MnO2 from aqueous solution. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124667] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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27
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Zhang J, Cui F, Xu L, Ma Q, Gao Y, Liu Y, Cui T. Construction of magnetic NiO/C nanosheets derived from coordination polymers for extraordinary adsorption of dyes. J Colloid Interface Sci 2020; 561:542-550. [DOI: 10.1016/j.jcis.2019.11.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/28/2019] [Accepted: 11/08/2019] [Indexed: 10/25/2022]
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28
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Soltani R, Marjani A, Moguei MRS, Rostami B, Shirazian S. Novel diamino-functionalized fibrous silica submicro-spheres with a bimodal-micro-mesoporous network: Ultrasonic-assisted fabrication, characterization, and their application for superior uptake of Congo red. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111617] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Gao J, He P, Yang T, Zhou L, Wang X, Chen S, Lei H, Zhang H, Jia B, Liu J. Electrodeposited NiO/graphene oxide nanocomposite: An enhanced voltammetric sensing platform for highly sensitive detection of uric acid, dopamine and ascorbic acid. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113516] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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30
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Ghiat I, Boudjemaa A, Saadi A, Bachari K, Coville NJ. Efficient hydrogen generation over a novel Ni phyllosilicate photocatalyst. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111952] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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31
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Tahira I, Aslam Z, Abbas A, Monim-ul-Mehboob M, Ali S, Asghar A. Adsorptive removal of acidic dye onto grafted chitosan: A plausible grafting and adsorption mechanism. Int J Biol Macromol 2019; 136:1209-1218. [DOI: 10.1016/j.ijbiomac.2019.06.173] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 06/18/2019] [Accepted: 06/24/2019] [Indexed: 10/26/2022]
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32
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Preparation of borate anions intercalated MgAl-LDHs microsphere and its calcinated product with superior adsorption performance for Congo red. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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33
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Zheng Y, Cheng B, You W, Yu J, Ho W. 3D hierarchical graphene oxide-NiFe LDH composite with enhanced adsorption affinity to Congo red, methyl orange and Cr(VI) ions. JOURNAL OF HAZARDOUS MATERIALS 2019; 369:214-225. [PMID: 30776604 DOI: 10.1016/j.jhazmat.2019.02.013] [Citation(s) in RCA: 165] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 02/02/2019] [Accepted: 02/04/2019] [Indexed: 05/07/2023]
Abstract
Three-dimensional (3D) hierarchical graphene oxide-NiFe layered double hydroxide (GO-NiFe LDH) composite with sandwich-like structure is fabricated using a facile one-pot hydrothermal reaction. Electron microscopy images demonstrate that the GO-NiFe LDH composite possesses a highly porous and well-ordered structure. Both sides of the GO are fully covered by the LDH nanosheets, resulting in the sandwich-like architecture. The adsorption performance of the GO-NiFe LDH composite and pure NiFe LDH for three anionic pollutants, namely, Congo red (CR), methyl orange (MO) and hexavalent chromium ion [Cr(VI)] is systematically investigated. The presence of GO in the GO-NiFe LDH composite leads to the better adsorption capability and faster adsorption kinetics of this composite compared with the NiFe LDH microspheres. The pseudo-second-order kinetic model can well represent the adsorption kinetics, and the Langmuir isotherm model provides a better description for the adsorption isotherms. The GO-NiFe LDH composite demonstrates appreciable potential in alleviating anionic pollutants from the aquatic environment as shown by its excellent adsorption capability towards CR, MO and Cr(VI).
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Affiliation(s)
- Yingqiu Zheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan, 430070, PR China
| | - Bei Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan, 430070, PR China
| | - Wei You
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan, 430070, PR China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan, 430070, PR China; Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
| | - Wingkei Ho
- Department of Science and Environmental Studies and State Key Laboratory in Marine Pollution, The Education University of Hong Kong, Tai Po, N. T. Hong Kong, PR China.
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34
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Chen W, Shen Y, Ling Y, Peng Y, Ge M, Pan Z. Synthesis of Positively Charged Polystyrene Microspheres for the Removal of Congo Red, Phosphate, and Chromium(VI). ACS OMEGA 2019; 4:6669-6676. [PMID: 31459792 PMCID: PMC6648410 DOI: 10.1021/acsomega.9b00318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 03/28/2019] [Indexed: 05/12/2023]
Abstract
Uniform positively charged polystyrene microspheres were synthesized and further examined as a new sorbent for water remediation. The structures of the resulting sorbent were characterized by field-emission scanning electron microscopy, Fourier transform infrared spectroscopy, and 1H nuclear magnetic resonance spectroscopy. The adsorption performance of the sorbent was evaluated using three typical pollutants, namely, Congo red, phosphate, and Cr(VI). The adsorption isotherms were fitted by the Langmuir and Freundlich models, while the adsorption kinetics was analyzed by the pseudo-first-order, pseudo-second-order, and intraparticle diffusion equations. The thermodynamic parameters of the adsorption process including changes of enthalpy, entropy and Gibbs free energy, and binding constant were obtained by isothermal titration calorimetry measurements. The effects of solution pH and competitive ions on the adsorption process were investigated. The adsorption isotherms could be better fitted by the Langmuir model, yielding maximum adsorption capacities of 18, 6.2, and 1.1 mg g-1 for the adsorption of Congo red, Cr(VI), and phosphate, respectively. The adsorption kinetics could be best described by the pseudo-second-order equation. The spent sorbent was regenerated by washing with 1 M KOH and showed outstanding long-term cyclic performance. The findings suggested that the positive charges at the surface of polystyrene microspheres could serve as effective sites for the immobilization of anionic pollutants in solutions owing to the electrostatic attraction.
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Affiliation(s)
- Weiming Chen
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yi Shen
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
- E-mail:
| | - Ying Ling
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yaotian Peng
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Moyan Ge
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ziyan Pan
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
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35
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Degradation of methylene blue by a heterogeneous Fenton reaction using an octahedron-like, high-graphitization, carbon-doped Fe2O3 catalyst. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.01.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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36
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Hierarchical C/NiO-ZnO nanocomposite fibers with enhanced adsorption capacity for Congo red. J Colloid Interface Sci 2019; 537:736-745. [DOI: 10.1016/j.jcis.2018.11.045] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/10/2018] [Accepted: 11/12/2018] [Indexed: 01/19/2023]
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37
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Li X, Yu J, Jaroniec M, Chen X. Cocatalysts for Selective Photoreduction of CO2 into Solar Fuels. Chem Rev 2019; 119:3962-4179. [DOI: 10.1021/acs.chemrev.8b00400] [Citation(s) in RCA: 1094] [Impact Index Per Article: 218.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xin Li
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Xiaobo Chen
- Department of Chemistry, University of Missouri—Kansas City, Kansas City, Missouri 64110, United States
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38
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Zhang H, Ruan Y, Feng Y, Su M, Diao Z, Chen D, Hou L, Lee PH, Shih K, Kong L. Solvent-free hydrothermal synthesis of gamma-aluminum oxide nanoparticles with selective adsorption of Congo red. J Colloid Interface Sci 2019; 536:180-188. [DOI: 10.1016/j.jcis.2018.10.054] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/16/2018] [Accepted: 10/18/2018] [Indexed: 12/15/2022]
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39
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Chen Z, Mu D, Chen F, Tan N. NiFe2O4@ nitrogen-doped carbon hollow spheres with highly efficient and recyclable adsorption of tetracycline. RSC Adv 2019; 9:10445-10453. [PMID: 35515304 PMCID: PMC9062489 DOI: 10.1039/c9ra00670b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 03/13/2019] [Indexed: 11/21/2022] Open
Abstract
Antibiotics can affect ecosystems and threaten human health; therefore, methods for removing antibiotics have become a popular subject in environmental management and for the protection of human health. Adsorption is considered an effective approach for the removal of antibiotics from water. In this study, NiFe2O4@nitrogen-doped carbon hollow spheres (NiFe2O4/NCHS) were synthesized via a facile hydrothermal method followed by calcination using NCHS as a hard template. The nanocomposite exhibited high adsorption activity and good recyclability. The nanocomposite was characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and nitrogen adsorption–desorption to study its micromorphology, structure, and chemical composition/states. In addition, the factors affecting the adsorption process were systematically investigated, including tetracycline (TC) concentration, solution pH, ionic strength, and temperature. The maximum adsorption capacity for TC was calculated to be 271.739 mg g−1 based on the Langmuir adsorption model, which was higher than various other materials. This study provides an effective method for constructing the NiFe2O4/NHCS core–shell structure, which can be applied for the removal of TC from water. Antibiotics can affect ecosystems and threaten human health; therefore, methods for removing antibiotics have become a popular subject in environmental management and for the protection of human health.![]()
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Affiliation(s)
- Zhe Chen
- School of Material Science and Technology
- Jilin Institute of Chemical Technology
- Jilin
- PR China
| | - Dongzhao Mu
- School of Material Science and Technology
- Jilin Institute of Chemical Technology
- Jilin
- PR China
| | - Feng Chen
- Jinlin Petrochemical Company Organic Synthetic Plants
- Jinlin
- P. R. China
| | - Naidi Tan
- School of Material Science and Technology
- Jilin Institute of Chemical Technology
- Jilin
- PR China
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40
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Bifunctional silver(I) coordination polymer exhibiting selective adsorptive of Congo red and luminescent sensing for ferric ion. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.09.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Zhao X, Su Y, Li S, Bi Y, Han X. A green method to synthesize flowerlike Fe(OH) 3 microspheres for enhanced adsorption performance toward organic and heavy metal pollutants. J Environ Sci (China) 2018; 73:47-57. [PMID: 30290871 DOI: 10.1016/j.jes.2018.01.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 01/09/2018] [Accepted: 01/11/2018] [Indexed: 06/08/2023]
Abstract
Dyestuffs and heavy metal ions in water are seriously harmful to the ecological environment and human health. Three-dimensional (3D) flowerlike Fe(OH)3 microspheres were synthesized through a green yet low-cost injection method, for the removal of organic dyes and heavy metal ions. The Fe(OH)3 microspheres were characterized by thermal gravimetric analysis (TGA), Fourier transform infrared (FT-IR), and transmission electron microscopy (TEM) techniques. The adsorption kinetics of Congo Red (CR) on Fe(OH)3 microspheres obeyed the pseudo-second-order model. Cr6+ and Pb2+ adsorption behaviors on Fe(OH)3 microspheres followed the Langmuir isotherm model. The maximum adsorption capacities of the synthesized Fe(OH)3 were 308, 52.94, and 75.64mg/g for CR, Cr6+, and Pb2+ respectively. The enhanced adsorption performance originated from its surface properties and large specific surface area of 250m2/g. The microspheres also have excellent adsorption stability and recyclability. Another merit of the Fe(OH)3 material is that it also acts as a Fenton-like catalyst. These twin functionalities (both as adsorbent and Fenton-like catalyst) give the synthesized Fe(OH)3 microspheres great potential in the field of water treatment.
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Affiliation(s)
- Xiaole Zhao
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yingchun Su
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Shubin Li
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yajun Bi
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xiaojun Han
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
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42
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Al-Naddaf Q, Thakkar H, Rezaei F. Novel Zeolite-5A@MOF-74 Composite Adsorbents with Core-Shell Structure for H 2 Purification. ACS APPLIED MATERIALS & INTERFACES 2018; 10:29656-29666. [PMID: 30095892 DOI: 10.1021/acsami.8b10494] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hydrogen is considered as one of the most important clean and renewable energy sources for a sustainable energy future. However, its efficient and cost-effective purification still remains challenging. In this work, we report the development of novel zeolite@metal-organic framework (MOF) composites comprised of MOF-74 and zeolite-5A with core-shell structure for efficient purification of H2. The composites were synthesized hydrothermally through the addition of zeolite particles with and without carboxyl functional groups to the MOF synthesis solution. The zeolite/MOF weight ratio was varied systematically to find the optimum composition based on the adsorption performance. The formation of zeolite@MOF composites was confirmed by various characterization techniques. Single-component adsorption isotherms of CO2, CO, CH4, N2, and H2 over composites were measured at 25 °C to determine their equilibrium adsorption capacity. It was found that the zeolite-5A@MOF-74 with weight ratio of 5:95 exhibited a similar morphology to that of pristine MOF-74, but with higher surface area and total pore volume. Moreover, this composite showed 20-30% increase in CO2, CO, CH4, and N2 uptake than the bare MOF, which could be attributed to the formation of new mesopores at the MOF-zeolite interface. The estimated selectivity values for CO2/H2, CO/H2, CH4/H2, and N2/H2 were higher than those of the zeolite and/or MOF. Our results also indicated that surface modification of zeolite prior to composite formation does not enhance the adsorption capacities of the composites. Overall, the findings of this study suggest that the zeolite-5A@MOF-74 composites with core-shell structure are promising candidates for industrial H2 purification processes.
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Affiliation(s)
- Qasim Al-Naddaf
- Department of Chemical and Biochemical Engineering , Missouri University of Science and Technology , Rolla , Missouri 65409-1230 , United States
| | - Harshul Thakkar
- Department of Chemical and Biochemical Engineering , Missouri University of Science and Technology , Rolla , Missouri 65409-1230 , United States
| | - Fateme Rezaei
- Department of Chemical and Biochemical Engineering , Missouri University of Science and Technology , Rolla , Missouri 65409-1230 , United States
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43
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Ren B, Xu Y, Zhang L, Liu Z. Carbon-doped graphitic carbon nitride as environment-benign adsorbent for methylene blue adsorption: Kinetics, isotherm and thermodynamics study. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.03.041] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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44
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Dai J, Li C, Xiao S, Liu J, He J, Li J, Wang L, Lei J. Fabrication of novel ZIF‐67 Composite Microspheres for Effective Adsorption and Solid‐phase Extraction of Dyes from Water. ChemistrySelect 2018. [DOI: 10.1002/slct.201800778] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Juan Dai
- The Beijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry University Beijing 100083 China
| | - Chunxiao Li
- The Beijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry University Beijing 100083 China
| | - Shangzhen Xiao
- The Beijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry University Beijing 100083 China
| | - Jing Liu
- The Beijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry University Beijing 100083 China
| | - Jing He
- The Beijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry University Beijing 100083 China
| | - Jiding Li
- The State Key Laboratory of Chemical EngineeringDepartment of Chemical EngineeringTsinghua University Beijing 100084 China
| | - Luying Wang
- The Beijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry University Beijing 100083 China
| | - Jiandu Lei
- The Beijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry University Beijing 100083 China
- The MOE Engineering Research Center of Forestry Biomass Materials and BioenergyBeijing Forestry University Beijing 100083 China
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45
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Design and synthesis of Zn0.3Fe0.45O3 nanoparticle for efficient removal of Congo red dye and its kinetic and isotherm investigation. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2018. [DOI: 10.1007/s40090-018-0140-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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46
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Wang J, Xiao L, Wen S, Chen N, Dai Z, Deng J, Nie L, Min J. Hierarchically porous SiO2/C hollow microspheres: a highly efficient adsorbent for Congo Red removal. RSC Adv 2018; 8:19852-19860. [PMID: 35541001 PMCID: PMC9080780 DOI: 10.1039/c8ra02988a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 05/17/2018] [Indexed: 11/21/2022] Open
Abstract
Hierarchically porous SiO2/C hollow microspheres (HPSCHMs) were synthesized by a hydrothermal and NaOH-etching combined route. The adsorption performance of the prepared HPSCHMs was investigated to remove Congo Red (CR) in aqueous solution. The results show that the synthesized composite possesses a hollow microspherical structure with hierarchical pores and a diameter of about 100–200 nm, and its surface area is up to 1154 m2 g−1. This material exhibits a remarkable adsorption performance for CR in solution, and its maximum adsorption amount for CR can reach up to 2512 mg g−1. It shows faster adsorption and much higher adsorption capacity than the commercial AC and γ-Al2O3 samples under the same conditions. The studies of the kinetics and thermodynamics indicate that the adsorption of CR on the PHSCHM sample obeys the pseudo-second order model well and belongs to physisorption. The adsorption activation energy is about 7.72 kJ mol−1. In view of the hierarchically meso–macroporous structure, large surface area and pore volume, the HPSCHM material could be a promising adsorbent for removal of pollutants, and it could also be used as a catalyst support. Hierarchically porous SiO2/C hollow microspheres (HPSCHMs) were synthesized. Its surface area is up to 1154 m2 g–1. Hierarchically porous structure facilitates diffusion of adsorbate. Its maximum adsorption amount for Congo Red is up to 2512 mg g–1.![]()
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Affiliation(s)
- Jie Wang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan 430068
- P. R. China
| | - Longya Xiao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan 430068
- P. R. China
| | - Shuai Wen
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan 430068
- P. R. China
| | - Nuo Chen
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan 430068
- P. R. China
| | - Zhiyin Dai
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan 430068
- P. R. China
| | - Junyang Deng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan 430068
- P. R. China
| | - Longhui Nie
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan 430068
- P. R. China
- Collaborative Innovation Center of Green Light-weight Materials and Processing
| | - Jie Min
- Hubei Provincial Key Laboratory of Green Materials for Light Industry
- Hubei University of Technology
- Wuhan 430068
- P. R. China
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47
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Wang S, Yang B, Liu Y. Synthesis of a hierarchical SnS2 nanostructure for efficient adsorption of Rhodamine B dye. J Colloid Interface Sci 2017; 507:225-233. [DOI: 10.1016/j.jcis.2017.07.053] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/10/2017] [Accepted: 07/16/2017] [Indexed: 01/21/2023]
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48
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Bi L, Pan G. From harmful Microcystis blooms to multi-functional core-double-shell microsphere bio-hydrochar materials. Sci Rep 2017; 7:15477. [PMID: 29133868 PMCID: PMC5684341 DOI: 10.1038/s41598-017-15696-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 11/01/2017] [Indexed: 11/09/2022] Open
Abstract
Harmful algal blooms (HABs) induced by eutrophication is becoming a serious global environmental problem affecting public health and aquatic ecological sustainability. A novel strategy for the utilization of biomass from HABs was developed by converting the algae cells into hollow mesoporous bio-hydrochar microspheres via hydrothermal carbonization method. The hollow microspheres were used as microreactors and carriers for constructing CaO2 core-mesoporous shell-CaO2 shell microspheres (OCRMs). The CaO2 shells could quickly increase dissolved oxygen to extremely anaerobic water in the initial 40 min until the CaO2 shells were consumed. The mesoporous shells continued to act as regulators restricting the release of oxygen from CaO2 cores. The oxygen-release time using OCRMs was 7 times longer than when directly using CaO2. More interestingly, OCRMs presented a high phosphate removal efficiency (95.6%) and prevented the pH of the solution from rising to high levels in comparison with directly adding CaO2 due to the OH- controlled-release effect of OCRMs. The distinct core-double-shell micro/nanostructure endowed the OCRMs with triple functions for oxygen controlled-release, phosphorus removal and less impact on water pH. The study is to explore the possibility to prepare smarter bio-hydrochar materials by utilizing algal blooms.
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Affiliation(s)
- Lei Bi
- Department of Environmental Nano-materials, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Gang Pan
- Department of Environmental Nano-materials, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
- School of Animal, Rural, and Environmental Sciences, Nottingham Trent University, Nottingham, NG25 0QF, UK.
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Sharma L, Kakkar R. Hierarchical Porous Magnesium Oxide (Hr-MgO) Microspheres for Adsorption of an Organophosphate Pesticide: Kinetics, Isotherm, Thermodynamics, and DFT Studies. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38629-38642. [PMID: 29027786 DOI: 10.1021/acsami.7b14370] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, hierarchical porous magnesium oxide (Hr-MgO) microspheres have been fabricated from a hydromagnesite precursor via a facile precipitation method followed by calcination. The Hr-MgO microspheres consist of several nanosheet building blocks that generate a flowerlike architecture. Chlorpyrifos (CPF), a persistent organic pollutant, has been chosen as a model organophosphate pesticide to determine the adsorptive capacities of the fabricated Hr-MgO. The equilibrium adsorption data fits well with the Langmuir isotherm model, showing a maximum adsorption capacity of 3974 mg g-1, which is the highest value to date. Both kinetic as well as thermodynamic parameters reveal the spontaneous, exothermic, and pseudo-second-order nature of the adsorption process due to chemisorption between the pesticide and the adsorbent. Density functional theory studies suggest the importance of hydroxylation on the MgO surface for the successful destructive adsorption, which takes place via the cleavage of S═P and Cl-C bonds resulting in the fragmentation of CPF, which is in good agreement with Fourier transform infrared and mass spectrometric studies. The present study shows the potential use of hierarchically structured porous MgO microspheres as an efficient adsorbent for the removal of CPF pollutant.
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Affiliation(s)
- Lekha Sharma
- Department of Chemistry, University of Delhi , Delhi 110007, India
| | - Rita Kakkar
- Department of Chemistry, University of Delhi , Delhi 110007, India
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50
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Lei C, Pi M, Zhou W, Guo Y, Zhang F, Qin J. Synthesis of hierarchical porous flower-like ZnO-AlOOH structures and their applications in adsorption of Congo Red. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.09.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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