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Zhu F, Zhan Y, Chen X, Chen Y, Lei Y, Jia H, Li Y, Duan X. Photocatalytic PAN Nanofibrous Membrane through Anchoring a Nanoflower-Branched CoAl-LDH@PANI Heterojunction for Organic Hazards Degradation and Oil-Containing Emulsified Wastewater Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14368-14383. [PMID: 38954527 DOI: 10.1021/acs.langmuir.4c00980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
The synergistic treatment of oily wastewater containing organic hazards and emulsified oils remains a big challenge for membrane separation technology. Herein, the photocatalytic membrane, which combined the physical barrier and catalytic oxidation-driven degradation functionality, was fabricated via anchoring a nanoflower-branched CoAl-LDH@PANI Z-scheme heterojunction onto a porous polyacrylonitrile mat and using tannic acid as an adhesive. The assembly of such a Z-scheme heterojunction offered the superior photocatalytic degradation performance of soluble dyes and tetracycline (up to 94.3%) to the membrane with the improved photocatalytic activity of 2.33 times compared with the CoAl-LDH@pPAN membrane. Quenching experiments suggested that the •O2- was the most reactive oxygen species in the catalytic reaction system of the composite membrane. The greatly enhanced photocatalytic activity was attributed to the effective inhibition of photogenerated hole-electron combination using PANI as a carrier, with charge transferring from LDH to PANI. The possible photocatalytic degradation mechanism was proposed based on VB-XPS, electron spin resonance spectroscopy, and DRS technologies, which was confirmed by density functional theory calculation. Meanwhile, benefiting from the superhydrophilic/oleophobic feature and low oil adhesion, the membrane exhibited high permeability for isooctane emulsion (3990.39 L·m-2·h-1), high structure stability, and satisfactory cycling performance. This work provided a strategy to develop superwetting and photocatalytic composite membranes for treating complex multicomponent pollutants in the chemical industry.
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Affiliation(s)
- Fei Zhu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
| | - Yingqing Zhan
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
- Research Institute of Industrial Hazardous Waste Disposal and Resource Utilization, Southwest Petroleum University, Chengdu 610500, P R China
| | - Ximin Chen
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
| | - Yiwen Chen
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
| | - Yajie Lei
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, P R China
| | - Hongshan Jia
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
| | - Yinlong Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
| | - Xinyue Duan
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, 8 Xindu Avenue, Chengdu 610500, P R China
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Saveh H, Mazloom G, Abdi J. Synthesis of magnetic layered double hydroxide (Fe 3O 4@CuCr-LDH) decorated with ZIF-8 for efficient sonocatalytic degradation of tetracycline. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 362:121338. [PMID: 38823296 DOI: 10.1016/j.jenvman.2024.121338] [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: 02/23/2024] [Revised: 04/25/2024] [Accepted: 05/30/2024] [Indexed: 06/03/2024]
Abstract
A series of Fe3O4@CuCr-LDH hybrids decorated with different amount of ZIF-8 (FLZ, 10-40 wt%) was prepared using simple methods and characterized with different techniques. The activity of the synthesized nanocomposites was investigated in the sonocatalytic degradation of tetracycline (TC) antibiotic from wastewater. When the content of ZIF-8 in the nanocomposite structure was 20 wt%, the FLZ-20 sonocatalyst exhibited the high performance in the sonocatalytic removal of TC. At optimum conditions (0.7 g/L catalyst dosage, pH of 7, 50 mg/L initial concentration of antibiotic, and 15 min sonication time) of the sonocatalytic removal of TC approached to 91.4% under ultrasonic irradiation (USI) using FLZ-20. This efficiency was much higher than those of obtained results by Fe3O4@CuCr-LDH and pristine ZIF-8. The formed ●OH and ●O2- exhibited the major roles in the sonocatalytic TC degradation process. The excellent performance of FLZ-20 can be attributed to the heterojunctions created between composite components, which could improve the electron transfer ability and effectively separate e-/h+ pairs. In addition, FLZ-20 showed the superior reusability and stability during three successive recycling. Moreover, the facile magnetically separation of the sonocatalyst from the aqueous solution was another outstanding feature, which prevents the formation of secondary pollutants. It can be concluded that the fabrication of heterojunctions is an efficient procedure to promote the sonocatalytic acting of the catalyst.
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Affiliation(s)
- Hannaneh Saveh
- Department of Chemical Engineering, Faculty of Engineering, University of Mazandaran, 47416-13534, Babolsar, Iran
| | - Golshan Mazloom
- Department of Chemical Engineering, Faculty of Engineering, University of Mazandaran, 47416-13534, Babolsar, Iran
| | - Jafar Abdi
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, 3619995161, Shahrood, Iran.
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Ndlovu SP, Alven S, Hlalisa K, Aderibigbe BA. Cellulose Acetate-Based Wound Dressings Loaded with Bioactive Agents: Potential Scaffolds for Wound Dressing and Skin Regeneration. Curr Drug Deliv 2024; 21:1226-1240. [PMID: 37842887 DOI: 10.2174/0115672018262616231001191356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/25/2023] [Accepted: 08/18/2023] [Indexed: 10/17/2023]
Abstract
Wound healing and skin regeneration are major challenges in chronic wounds. Among the types of wound dressing products currently available in the market, each wound dressing material is designed for a specific wound type. Some of these products suffer from various shortcomings, such as poor antibacterial efficacy and mechanical performance, inability to provide a moist environment, poor permeability to oxygen and capability to induce cell migration and proliferation during the wound healing process. Hydrogels and nanofibers are widely reported wound dressings that have demonstrated promising capability to overcome these shortcomings. Cellulose acetate is a semisynthetic polymer that has attracted great attention in the fabrication of hydrogels and nanofibers. Loading bioactive agents such as antibiotics, essential oils, metallic nanoparticles, plant extracts, and honey into cellulose acetate-based nanofibers and hydrogels enhanced their biological effects, including antibacterial, antioxidant, and wound healing. This review reports cellulose acetate-based hydrogels and nanofibers loaded with bioactive agents for wound dressing and skin regeneration.
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Affiliation(s)
- Sindi P Ndlovu
- Department of Chemistry, University of Fort Hare, Alice, Eastern Cape, 5700, South Africa
| | - Sibusiso Alven
- Department of Chemistry, University of Fort Hare, Alice, Eastern Cape, 5700, South Africa
| | - Kula Hlalisa
- Department of Chemistry, University of Fort Hare, Alice, Eastern Cape, 5700, South Africa
| | - Blessing A Aderibigbe
- Department of Chemistry, University of Fort Hare, Alice, Eastern Cape, 5700, South Africa
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El Fawal G, Abu-Serie MM, Ali SM, Elessawy NA. Nanocomposite fibers based on cellulose acetate loaded with fullerene for cancer therapy: preparation, characterization and in-vitro evaluation. Sci Rep 2023; 13:21045. [PMID: 38030752 PMCID: PMC10687030 DOI: 10.1038/s41598-023-48302-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 11/24/2023] [Indexed: 12/01/2023] Open
Abstract
The current prevalence of cancerous diseases necessitates the exploration of materials that can effectively treat these conditions while minimizing the occurrence of adverse side effects. This study aims to identify materials with the potential to inhibit the metastasis of cancerous diseases within the human body while concurrently serving as therapeutic agents for their treatment. A novel approach was employed to enhance the anti-cancer properties of electrospun cellulose fibers by incorporating fullerene nanoparticles (NPs) into cellulose acetate (CA) fibers, resulting in a composite material called Fullerene@CA. This development aimed at utilizing the anti-cancer properties of fullerenes for potential therapeutic applications. This process has been demonstrated in vitro against various types of cancer, and it was found that Fullerene@CA nanocomposite fibers displayed robust anticancer activity. Cancer cells (Caco-2, MDA-MB 231, and HepG-2 cells) were inhibited by 0.3 and 0.5 mg.g-1 fullerene doses by 58.62-62.87%, 47.86-56.43%, and 48.60-57.73%, respectively. The tested cancer cells shrink and lose their spindle shape due to morphological changes. The investigation of the prepared nanocomposite reveals its impact on various genes, such as BCL2, NF-KB, p53, Bax, and p21, highlighting the therapeutic compounds' effectiveness. The experimental results demonstrated that the incorporation of NPs into CA fibers resulted in a significant improvement in their anti-cancer efficacy. Therefore, it is suggested that these modified fibers could be utilized as a novel therapeutic approach for the treatment and prevention of cancer metastasis.
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Affiliation(s)
- Gomaa El Fawal
- Polymer Materials Research Department, SRTA-City), Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Marwa M Abu-Serie
- Medical Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg EL-Arab City, Alexandria, 21934, Egypt
| | - Safaa M Ali
- Nucleic Acid Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Noha A Elessawy
- Computer Based Engineering Applications Department, Informatics Research Institute IRI, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt.
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Song Y, Fang Q, Liu B, Hu B, Su Z. Efficient Proton Conductor Based on Bismuth Oxide Clusters and Polyoxometalates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:14511-14518. [PMID: 37782751 DOI: 10.1021/acs.langmuir.3c01441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Developing new solid-state electrolyte materials for improving the proton conductivity remains an important challenge. Herein, a novel two-dimensional layered solid-state proton conductor Bi2O2-SiW12 nanocomposite, based on silicotungstic acid (H4SiW12O40) and Bi(NO3)3·5H2O, was synthesized and characterized. The composite consists of a layered cation framework [Bi2O2]2+ and interlayer-embedded counteranionic [SiW12O40]4-, which forms continuous hydrogen bond (O-H···O) networks through the interaction of adjacent oxygen atoms on the surface of the [Bi2O2]2+ and oxygen atoms of the H4SiW12O40. Facile proton transfer along these pathways endows the Bi2O2-SiW12 (30:1) nanocomposite with an excellent proton conductivity of 3.61 mS cm-1 at 90 °C and 95% relative humidity, indicating that the nanocomposite has good prospects as a highly efficient proton conductor.
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Affiliation(s)
- Yingjie Song
- Jilin Provincial International Joint Research Center of Photo-functional Materials and Institution Chemistry, School of Chemistry and Environmental Engineering, Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China
| | - Qing Fang
- Jilin Provincial International Joint Research Center of Photo-functional Materials and Institution Chemistry, School of Chemistry and Environmental Engineering, Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China
| | - Bailing Liu
- Jilin Provincial International Joint Research Center of Photo-functional Materials and Institution Chemistry, School of Chemistry and Environmental Engineering, Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China
| | - Bo Hu
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Zhongmin Su
- Jilin Provincial International Joint Research Center of Photo-functional Materials and Institution Chemistry, School of Chemistry and Environmental Engineering, Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130021, China
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Zhang Y, Zhao M, Huang J, Zhao N, Yu H. Controllable Synthesis, Photocatalytic Property, and Mechanism of a Novel POM-Based Direct Z-Scheme Nano-Heterojunction α-Fe 2O 3/P 2Mo 18. Molecules 2023; 28:6671. [PMID: 37764447 PMCID: PMC10536182 DOI: 10.3390/molecules28186671] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/07/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
In order to improve photocatalytic activity and maximize solar energy use, a new composite material Fe2O3/P2Mo18 was prepared by combining polyoxometalates (P2Mo18) with Fe2O3 nanosheets. FT-IR, XRD, XPS, SEM, TEM, UV-vis, EIS, and PL were used to characterize the composite material, and nano-Fe2O3 of different sizes and morphologies with a controllable absorption range was prepared by adjusting the reaction time, and, when combined with P2Mo18, a composite photocatalyst with efficient visible light response and photocatalytic activity was constructed. The EIS, Bode, and PL spectra analysis results show that the Fe2O3/P2Mo18 composite material has outstanding interfacial charge transfer efficiency and potential photocatalytic application possibilities. Model reactions of methylene blue (MB) and Cr (VI) photodegradation were used to evaluate the redox activity of Fe2O3/P2Mo18 composites under simulated visible light. The photocatalytic degradation rate was as high as 98.98% for MB and 96.86% for Cr (VI) when the composite ratio was Fe2O3/P2Mo18-5%. This research opens up a new avenue for the development of high-performance photocatalysts.
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Affiliation(s)
| | | | | | | | - Haihui Yu
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China; (Y.Z.); (M.Z.); (J.H.); (N.Z.)
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Sudhaik A, Raizada P, Ahamad T, Alshehri SM, Nguyen VH, Van Le Q, Thakur S, Thakur VK, Selvasembian R, Singh P. Recent advances in cellulose supported photocatalysis for pollutant mitigation: A review. Int J Biol Macromol 2023; 226:1284-1308. [PMID: 36574582 DOI: 10.1016/j.ijbiomac.2022.11.241] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 11/20/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Abstract
In recent times, green chemistry or "green world" is a new and effective approach for sustainable environmental remediation. Among all biomaterials, cellulose is a vital material in research and green chemistry. Cellulose is the most commonly used natural biopolymer because of its distinctive and exceptional properties such as reproducibility, cost-effectiveness, biocompatibility, biodegradability, and universality. Generally, coupling cellulose with other nanocomposite materials enhances the properties like porosity and specific surface area. The polymer is environment-friendly, bioresorbable, and sustainable which not only justifies the requirements of a good photocatalyst but boosts the adsorption ability and degradation efficiency of the nanocomposite. Hence, knowing the role of cellulose to enhance photocatalytic activity, the present review is focused on the properties of cellulose and its application in antibiotics, textile dyes, phenol and Cr(VI) reduction, and degradation. The work also highlighted the degradation mechanism of cellulose-based photocatalysts, confirming cellulose's role as a support material to act as a sink and electron mediator, suppressing the charge carrier's recombination rate and enhancing the charge migration ability. The review also covers the latest progressions, leanings, and challenges of cellulose biomaterials-based nanocomposites in the photocatalysis field.
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Affiliation(s)
- Anita Sudhaik
- School of Advanced Chemical Sciences, Faculty of Basic Sciences, Shoolini University, Solan, HP 173229, India
| | - Pankaj Raizada
- School of Advanced Chemical Sciences, Faculty of Basic Sciences, Shoolini University, Solan, HP 173229, India
| | - Tansir Ahamad
- Department of Chemistry, College of Science, King Saud University, Saudi Arabia
| | - Saad M Alshehri
- Department of Chemistry, College of Science, King Saud University, Saudi Arabia
| | - Van-Huy Nguyen
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India
| | - Quyet Van Le
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sourbh Thakur
- Silesian University of Technology, Faculty of Chemistry, Department of Inorganic, Analytical Chemistry and Electrochemistry, B. Krzywoustego 6 Str., 44-100 Gliwice, Poland
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Centre, Scotland's Rural College, Edinburgh EH9 3JG, Scotland, UK
| | | | - Pardeep Singh
- School of Advanced Chemical Sciences, Faculty of Basic Sciences, Shoolini University, Solan, HP 173229, India.
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Fabrication of alginate-based multi-crosslinked biomembranes for direct methanol fuel cell application. Carbohydr Polym 2023; 300:120261. [DOI: 10.1016/j.carbpol.2022.120261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 11/11/2022]
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9
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Din MI, Khalid R, Hussain Z, Arshad M, Khan SA. A critical review on application of organic, inorganic and hybrid nanophotocatalytic assemblies for photocatalysis of methyl orange dye in aqueous medium. REV CHEM ENG 2022. [DOI: 10.1515/revce-2022-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Abstract
Methyl orange (MO) is a highly carcinogenic and harmful contaminant, which has been extensively reported for its detrimental impact on human and aquatic life. The photodegradation of MO into less toxic products has gained much attention over the past few decades. Herein we have reviewed the recent advancement in designing of nanomaterials (NMs) stabilized on different fabricating assemblies and their application in photocatalysis of MO dye. These photocatalytic systems possess various advantages and disadvantages. Graphene-based supported materials on different NMs are highly reported photocatalysts for photocatalysis of MO dye. Recent advancement, parameters affecting photocatalytic studies, kinetics and photocatalytic mechanism of MO have been thoroughly explained in this review. Future outcomes are also provided for extending the development of scientific research in this field.
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Affiliation(s)
| | - Rida Khalid
- School of Chemistry , University of Punjab , Lahore , 54590 , Pakistan
| | - Zaib Hussain
- School of Chemistry , University of Punjab , Lahore , 54590 , Pakistan
| | - Muhammad Arshad
- Institute of Chemistry , The Islamia University of Bahawalpur, Baghdad-ul-Jadeed Campus , Bahawalpur , 63100 , Pakistan
| | - Safyan A. Khan
- Center of Research Excellence in Nanotechnology , King Fahd University of Petroleum & Minerals , Dhahran , 31261 , Saudi Arabia
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Jamaluddin NS, Alias NH, Jaafar J, Othman NH, Sadaki S, Marpani F, Lau WJ, Abd Aziz MH. Exploring Potential of Adsorptive-Photocatalytic Molybdenum Disulphide/Polyacrylonitrile (MoS2/PAN) Nanofiber Coated Cellulose Acetate (CA) Membranes for Treatment of Wastewater. JOURNAL OF POLYMERS AND THE ENVIRONMENT 2022; 30:5290-5300. [DOI: 10.1007/s10924-022-02619-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/27/2022] [Indexed: 09/02/2023]
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Kotp YH. Fabrication of cerium titanate cellulose fiber nanocomposite materials for the removal of methyl orange and methylene blue from polluted water by photocatalytic degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:81583-81608. [PMID: 35739439 PMCID: PMC9606103 DOI: 10.1007/s11356-022-21430-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
In this study, cellulose fibers (Cf), extracted from sunflower seed husk, and different molar ratios of cerium titanate (Ce-Ti) NPs were prepared from sunflower seed husk extract by a green biosynthesis approach. Cf and Ce-Ti NPs were reacted via cross-linking reaction to synthesize a novel nanocomposite photocatalyst of Ce-Ti/Cf. Using Fourier-transform infrared (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM-EDX) spectroscopy, all manufactured materials were characterized. The results obtained from FTIR and EDX analyses indicated that Cf and its nanocomposites (0.1 Ce-Ti/Cf, 0.3 Ce-Ti/Cf, and 0.5 Ce-Ti/Cf) were successfully prepared by harnessing biomass extract from sunflower seed husk. Furthermore, XRD revealed that the degree of crystallinity of the nanocomposites was enhanced by increasing the molar ratios of the Ce-Ti NPs. The photocatalytic activity of as-fabricated 0.1 Ce-Ti/Cf, 0.3 Ce-Ti/Cf, and 0.5 Ce-Ti/Cf nanocomposite samples was investigated on methylene blue (MB) and methyl orange (MO) dyes as model organic compounds found in wastewaters. The effects of dose, contact time, and pH on the photocatalytic activity of the synthesized nanocomposites, the photodegradation kinetic parameters of MB, and MO degradation with/without the addition of H2O2 were also studied. The results revealed that high photodegradation efficiency could be obtained as the ratio of TiO2 in the Ce-Ti nanocomposite formula increases. Moreover, after sunlight irradiation, the adsorption capacity and the dye decomposition ratio significantly increase during the early contact time and reach equilibrium at about 240 and 120 min for 0.5 Ce-Ti/Cf nanocomposite photocatalyst in the absence and presence of hydrogen peroxide, respectively. In light of the obtained results and the practical wastewater treatment study conducted, the prepared photocatalyst from Ce-Ti/Cf nanocomposites could be a promising material for treating dye wastewater especially collected from Egypt.
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Affiliation(s)
- Yousra H Kotp
- Water Treatment & Desalination Unit, Hydrogeochemistry Department, Desert Research Center, El-Matariya, Cairo, B 11753, Egypt.
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12
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Han S, Xiao P. Catalytic degradation of tetracycline using peroxymonosulfate activated by cobalt and iron co-loaded pomelo peel biochar nanocomposite: Characterization, performance and reaction mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Guo R, Bai L, Dong G, Chai D, Lang K, Mou Z, Zhao M. Construction of ZnO/Keggin Polyoxometalate Nano-heterojunction Catalyst for Efficient Removal of Rhodamine B in Aqueous Solution. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02251-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Covaliu-Mierlă CI, Matei E, Stoian O, Covaliu L, Constandache AC, Iovu H, Paraschiv G. TiO2–Based Nanofibrous Membranes for Environmental Protection. MEMBRANES 2022; 12:membranes12020236. [PMID: 35207157 PMCID: PMC8875440 DOI: 10.3390/membranes12020236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/04/2022] [Accepted: 02/10/2022] [Indexed: 11/16/2022]
Abstract
Electrospinning is a unique technique that can be used to synthesize polymer and metal oxide nanofibers. In materials science, a very active field is represented by research on electrospun nanofibers. Fibrous membranes present fascinating features, such as a large surface area to volume ratio, excellent mechanical behavior, and a large surface area, which have many applications. Numerous techniques are available for the nanofiber’s synthesis, but electrospinning is presented as a simple process that allows one to obtain porous membranes containing smooth non-woven nanofibers. Titanium dioxide (TiO2) is the most widely used catalyst in photocatalytic degradation processes, it has advantages such as good photocatalytic activity, excellent chemical stability, low cost and non-toxicity. Thus, titanium dioxide (TiO2) is used in the synthesis of nanofibrous membranes that benefit experimental research by easy recyclability, excellent photocatalytic activity, high specific surface areas, and exhibiting stable hierarchical nanostructures. This article presents the synthesis of fiber membranes through the processes of electrospinning, coaxial electrospinning, electrospinning and electrospraying or electrospinning and precipitation. In addition to the synthesis of membranes, the recent progress of researchers emphasizing the efficiency of nanofiber photocatalytic membranes in removing pollutants from wastewater is also presented.
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Affiliation(s)
- Cristina Ileana Covaliu-Mierlă
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
| | - Ecaterina Matei
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
- Correspondence: ; Tel.: +40-72-454-3926
| | - Oana Stoian
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
| | - Leon Covaliu
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
| | - Alexandra-Corina Constandache
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
| | - Horia Iovu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 132 Calea Grivitei, 010737 Bucharest, Romania;
| | - Gigel Paraschiv
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania; (C.I.C.-M.); (O.S.); (L.C.); (A.-C.C.); (G.P.)
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El Fawal G, Abu-Serie MM, El-Gendi H, El-Fakharany EM. Fabrication, characterization and in vitro evaluation of disulfiram-loaded cellulose acetate/poly(ethylene oxide) nanofiber scaffold for breast and colon cancer cell lines treatment. Int J Biol Macromol 2022; 204:555-564. [PMID: 35139395 DOI: 10.1016/j.ijbiomac.2022.01.145] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 01/12/2022] [Accepted: 01/23/2022] [Indexed: 12/13/2022]
Abstract
Cancer and microbial infections threaten human health. Currently, chemotherapeutic drugs for cancer lack selectivity between normal and cancer cells, exacerbating this problem. Effective anticancer drug encapsulation is the golden key to solving this issue. Disulfiram (DS), an anticancer drug, has low solubility and selectivity and to tackle this concern, cellulose acetate (CA) and poly (ethylene oxide) (PEO) was selected as a matrix to prepare nanofiber containing DS (DS@CA/PEO) via electrospinning technique. DS@CA/PEO nanofiber was characterized by SEM, FTIR, TGA, and X-rd patterns and the results confirmed DS incorporation in CA/PEO nanofiber. DS@CA/PEO nanofiber scaffold showed higher safety than DS-free on human normal cells (Wi-38) with revealing similar anticancer activity of DS-free against colon cancer line (Caco-2) and breast cancer line (MDA-MB 231). This higher selectivity of DS@CA/PEO towards cancer cells than normal cells was associated with maintaining apoptotic activity and aldehyde dehydrogenase-inhibitory potency of DS. The latter efficacy led to eradicating colon and breast cancer stem cells, as evidenced by flow cytometry. Moreover, DS@CA/PEO nanofiber scaffold showed potent antibacterial activity (in vitro) against both Gram-negative and Gram-positive bacteria. These results investigated that DS@CA/PEO nanofiber scaffold could be a potential dual candidate as a selective anticancer and antimicrobial agent.
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Affiliation(s)
- Gomaa El Fawal
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt.
| | - Marwa M Abu-Serie
- Medical Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg EL-Arab City 21934, Alexandria, Egypt
| | - Hamada El-Gendi
- Bioprocess Development Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA City), New Borg El-Arab 21934, Egypt
| | - Esmail M El-Fakharany
- Protein Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA City), New Borg El-Arab 21934, Egypt
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Cellulose-Based Nanofibers Processing Techniques and Methods Based on Bottom-Up Approach-A Review. Polymers (Basel) 2022; 14:polym14020286. [PMID: 35054691 PMCID: PMC8781687 DOI: 10.3390/polym14020286] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/27/2021] [Accepted: 01/06/2022] [Indexed: 02/04/2023] Open
Abstract
In the past decades, cellulose (one of the most important natural polymers), in the form of nanofibers, has received special attention. The nanofibrous morphology may provide exceptional properties to materials due to the high aspect ratio and dimensions in the nanometer range of the nanofibers. The first feature may lead to important consequences in mechanical behavior if there exists a particular orientation of fibers. On the other hand, nano-sizes provide a high surface-to-volume ratio, which can have important consequences on many properties, such as the wettability. There are two basic approaches for cellulose nanofibers preparation. The top-down approach implies the isolation/extraction of cellulose nanofibrils (CNFs) and nanocrystals (CNCs) from a variety of natural resources, whereby dimensions of isolates are limited by the source of cellulose and extraction procedures. The bottom-up approach can be considered in this context as the production of nanofibers using various spinning techniques, resulting in nonwoven mats or filaments. During the spinning, depending on the method and processing conditions, good control of the resulting nanofibers dimensions and, consequently, the properties of the produced materials, is possible. Pulp, cotton, and already isolated CNFs/CNCs may be used as precursors for spinning, alongside cellulose derivatives, namely esters and ethers. This review focuses on various spinning techniques to produce submicrometric fibers comprised of cellulose and cellulose derivatives. The spinning of cellulose requires the preparation of spinning solutions; therefore, an overview of various solvents is presented showing their influence on spinnability and resulting properties of nanofibers. In addition, it is shown how bottom-up spinning techniques can be used for recycling cellulose waste into new materials with added value. The application of produced cellulose fibers in various fields is also highlighted, ranging from drug delivery systems, high-strength nonwovens and filaments, filtration membranes, to biomedical scaffolds.
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17
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Yang R, Lu X, Gu X. Pyrolysis Kinetics of a Lignin-Modified Cellulose Composite Film. ACS OMEGA 2021; 6:35584-35592. [PMID: 34984289 PMCID: PMC8717570 DOI: 10.1021/acsomega.1c05289] [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: 09/23/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Cellulose is the most abundant natural biopolymer material, which has been widely used in film making and food packaging in recent years. However, lignin, a natural bioaromatic material, is always applied as a waste resource due to its low utilization efficiency. In this study, a ZnCl2/CaCl2/cellulose mixed system was used to prepare film materials via a regeneration method. The chemical structure and corresponding properties were characterized. The thermal decomposition process of film materials showed that with an increase of the heating rate, the maximum weight loss temperature gradually shifted to the higher-temperature region. Additionally, the combination of lignin with cellulose as composite films can effectively improve thermal stability. Furthermore, kinetics methods such as Kissing-Akahira-Sunose (KAS), Flynn-Wall-Ozawa (FWO), and Friedman were used to calculate the average activation energy (E). This study proposed a facile method for preparing biobased multifunctional composite films using two kinds of naturally renewable materials.
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18
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Mamba FB, Mbuli BS, Ramontja J. Recent Advances in Biopolymeric Membranes towards the Removal of Emerging Organic Pollutants from Water. MEMBRANES 2021; 11:798. [PMID: 34832027 PMCID: PMC8619572 DOI: 10.3390/membranes11110798] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 12/22/2022]
Abstract
Herein, this paper details a comprehensive review on the biopolymeric membrane applications in micropollutants' removal from wastewater. As such, the implications of utilising non-biodegradable membrane materials are outlined. In comparison, considerations on the concept of utilising nanostructured biodegradable polymeric membranes are also outlined. Such biodegradable polymers under considerations include biopolymers-derived cellulose and carrageenan. The advantages of these biopolymer materials include renewability, biocompatibility, biodegradability, and cost-effectiveness when compared to non-biodegradable polymers. The modifications of the biopolymeric membranes were also deliberated in detail. This included the utilisation of cellulose as matrix support for nanomaterials. Furthermore, attention towards the recent advances on using nanofillers towards the stabilisation and enhancement of biopolymeric membrane performances towards organic contaminants removal. It was noted that most of the biopolymeric membrane applications focused on organic dyes (methyl blue, Congo red, azo dyes), crude oil, hexane, and pharmaceutical chemicals such as tetracycline. However, more studies should be dedicated towards emerging pollutants such as micropollutants. The biopolymeric membrane performances such as rejection capabilities, fouling resistance, and water permeability properties were also outlined.
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Affiliation(s)
- Feziwe B. Mamba
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa;
| | - Bhekani S. Mbuli
- DST/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Johannesburg 2028, South Africa
| | - James Ramontja
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
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19
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Zia J, Riaz U. Photocatalytic degradation of water pollutants using conducting polymer-based nanohybrids: A review on recent trends and future prospects. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117162] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Santos-Sauceda I, Castillo-Ortega MM, del Castillo-Castro T, Armenta-Villegas L, Ramírez-Bon R. Electrospun cellulose acetate fibers for the photodecolorization of methylene blue solutions under natural sunlight. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03324-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Li T, Zhang Z, Liu L, Gao M, Han Z. A stable metal-organic framework nanofibrous membrane as photocatalyst for simultaneous removal of methyl orange and formaldehyde from aqueous solution. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126359] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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Floating ZnO QDs-Modified TiO 2/LLDPE Hybrid Polymer Film for the Effective Photodegradation of Tetracycline under Fluorescent Light Irradiation: Synthesis and Characterisation. Molecules 2021; 26:molecules26092509. [PMID: 33923041 PMCID: PMC8123277 DOI: 10.3390/molecules26092509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 01/02/2023] Open
Abstract
In this work, mesoporous TiO2-modified ZnO quantum dots (QDs) were immobilised on a linear low-density polyethylene (LLDPE) polymer using a solution casting method for the photodegradation of tetracycline (TC) antibiotics under fluorescent light irradiation. Various spectroscopic and microscopic techniques were used to investigate the physicochemical properties of the floating hybrid polymer film catalyst (8%-ZT@LLDPE). The highest removal (89.5%) of TC (40 mg/L) was achieved within 90 min at pH 9 due to enhanced water uptake by the LDDPE film and the surface roughness of the hybrid film. The formation of heterojunctions increased the separation of photogenerated electron-hole pairs. The QDs size-dependent quantum confinement effect leads to the displacement of the conduction band potential of ZnO QDs to more negative energy values than TiO2. The displacement generates more reactive species with higher oxidation ability. The highly stable film photocatalyst can be separated easily and can be repeatedly used up to 8 cycles without significant loss in the photocatalytic ability. The scavenging test indicates that the main species responsible for the photodegradation was O2●−. The proposed photodegradation mechanism of TC was demonstrated in further detail based on the intermediates detected by LC-time-of-flight/mass spectrometry (LC/TOF-MS).
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23
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Zhao K, Kang SX, Yang YY, Yu DG. Electrospun Functional Nanofiber Membrane for Antibiotic Removal in Water: Review. Polymers (Basel) 2021; 13:E226. [PMID: 33440744 PMCID: PMC7827756 DOI: 10.3390/polym13020226] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/08/2021] [Accepted: 01/08/2021] [Indexed: 12/14/2022] Open
Abstract
As a new kind of water pollutant, antibiotics have encouraged researchers to develop new treatment technologies. Electrospun fiber membrane shows excellent benefits in antibiotic removal in water due to its advantages of large specific surface area, high porosity, good connectivity, easy surface modification and new functions. This review introduces the four aspects of electrospinning technology, namely, initial development history, working principle, influencing factors and process types. The preparation technologies of electrospun functional fiber membranes are then summarized. Finally, recent studies about antibiotic removal by electrospun functional fiber membrane are reviewed from three aspects, namely, adsorption, photocatalysis and biodegradation. Future research demand is also recommended.
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Affiliation(s)
| | | | | | - Deng-Guang Yu
- School of Materials Science & Engineering, University of Shanghai for Science & Technology, 516 Jun-Gong Road, Shanghai 200093, China; (K.Z.); (S.-X.K.); (Y.-Y.Y.)
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24
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Phan DN, Khan MQ, Nguyen NT, Phan TT, Ullah A, Khatri M, Kien NN, Kim IS. A review on the fabrication of several carbohydrate polymers into nanofibrous structures using electrospinning for removal of metal ions and dyes. Carbohydr Polym 2021; 252:117175. [DOI: 10.1016/j.carbpol.2020.117175] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 12/22/2022]
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25
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Huang XH, Hu T, Bu H, Li WX, Li ZL, Hu HJ, Chen WZ, Lin MZ, Li Y, Jiang GB. Transparent floatable magnetic alginate sphere used as photocatalysts carrier for improving photocatalytic efficiency and recycling convenience. Carbohydr Polym 2020; 254:117281. [PMID: 33357857 DOI: 10.1016/j.carbpol.2020.117281] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 01/16/2023]
Abstract
Practical application of powder photocatalysts is far from satisfying due to their low photon utilization, inconvenient recovery and potential environmental risk. In this study, an easily recoverable, environmentally friendly and highly transparent floatable magnetic photocatalyst carrier was prepared based on biopolymer alginate and Fe3O4 particles. Further, three different types of photocatalysts were chosen as model semiconductor photocatalysts and loaded on the shell of the carriers. The freeze process facilitated the formation of internal cavities that enhanced floating ability and transparency of the spheres. Meanwhile, the excellent floating performance offered massive reaction sites for pollutants reacting with photocatalysts, O2 and photons on the air/water interface. Photodegradation results showed all three floatable hybrid photocatalysts exhibited enhanced photocatalytic efficiencies compared to the virgin photocatalysts. In short, the carrier can integrate excellent floating ability, environmental friendliness and full recycling with good stability, and it can greatly improve the photocatalytic efficiency of various powder semiconductor photocatalysts.
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Affiliation(s)
- Xian-Hang Huang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Matrials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Tian Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Matrials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Huaitian Bu
- Department of Materials and Nanotechnology, SINTEF Industry, Forskningsveien 1, 0373, Oslo, Norway
| | - Wei-Xiong Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Matrials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Zeng-Lin Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Matrials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Han-Jian Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Matrials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Wen-Zhao Chen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Matrials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Min-Zhao Lin
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Matrials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Yongtao Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China.
| | - Gang-Biao Jiang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Matrials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China.
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26
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Property Characterization and Mechanism Analysis of Polyoxometalates-Functionalized PVDF Membranes by Electrochemical Impedance Spectroscopy. MEMBRANES 2020; 10:membranes10090214. [PMID: 32872637 PMCID: PMC7559549 DOI: 10.3390/membranes10090214] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 11/17/2022]
Abstract
Polyoxometalates (POMs) has proved its advantage in constructing high-performance nanocomposite membranes such as catalytic membranes, adsorptive membranes, and forward osmosis membranes. However, it is challenging or tedious to characterize its distribution and effect on the membrane structures due to the equipment resolution limitation, discrete nano-scaled structures of POMs, and limited doping amount compared to the polymeric membrane matrix. In this paper, POMs-functionalized polyvinylidene fluoride (PVDF) membranes were fabricated by phase inversion combined with the sol-gel method, and electrochemical impedance spectroscopy (EIS) was utilized to analyze the nanocomposite membrane intrinsic properties. Through adjusting the additives in the sol-forming process, a set of membranes with varied intrinsic properties were developed accordingly. The wetting degree of the membranes related to the hydrophilic nature of the membrane surfaces had a crucial influence on the impedance measurements at the early stage. Through EIS analysis, it was demonstrated that the amination of the membrane matrix through (3-aminopropyl)trimethoxysilane (APTMS) treatment and the immobilization of POMs through electrostatic attraction would not generate new pore structures into the membrane and only alter the membrane surface roughness and composition. To my knowledge, it is the first time that EIS was utilized to characterize the hydrophilicity of the membranes and pore structures of the POMs-modified membranes. Our findings indicate that EIS can provide valuable information for probing the structures of other nano-materials-incorporated membranes.
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27
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Salazar H, Martins PM, Santos B, Fernandes MM, Reizabal A, Sebastián V, Botelho G, Tavares CJ, Vilas-Vilela JL, Lanceros-Mendez S. Photocatalytic and antimicrobial multifunctional nanocomposite membranes for emerging pollutants water treatment applications. CHEMOSPHERE 2020; 250:126299. [PMID: 32113095 DOI: 10.1016/j.chemosphere.2020.126299] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/15/2020] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
Emerging pollutants represent a new global problem for water quality. As these compounds get into the environment, they cause severe threats to aquatic environments and human health and are typically resistant to conventional wastewater treatments. In this work, TiO2 nanoparticles surface was functionalized with silver (Ag) nanoparticles, and solvent cast and electrospun membranes of poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) were prepared with different concentrations of TiO2 and Ag-TiO2 to produce a multifunctional material. The photocatalytic activity of the nanocomposites was evaluated through the degradation of norfloxacin under ultraviolet (UV) and visible radiation. It is shown that nanocomposites with Ag-TiO2 show the highest degradation efficiencies: 64.2% under UV and 80.7% under visible radiation, for 90 and 300 min, respectively. Furthermore, the recyclability of the membranes has also been demonstrated. Finally, it is shown the antimicrobial activity of the nanocomposite membranes, demonstrating the suitability of the Ag-TiO2/PVDF-HFP nanocomposites as multifunctional photocatalytic and antimicrobial membranes for water remediation applications.
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Affiliation(s)
- H Salazar
- Centre/Department of Physics, Portugal; Centre/Department of Chemistry, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057, Braga, Portugal
| | - P M Martins
- Centre/Department of Physics, Portugal; Centre/Department of Chemistry, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057, Braga, Portugal.
| | - Bruno Santos
- Centre/Department of Physics, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057, Braga, Portugal
| | - M M Fernandes
- Centre/Department of Physics, Portugal; Centre/Department of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057, Braga, Portugal
| | - Ander Reizabal
- BCMaterials, Parque Científico y Tecnológico de Bizkaia, 48160, Derio, Spain
| | - Víctor Sebastián
- Chemical and Environmental Engineering Department, Instituto de Nanociencia de Aragón (INA) and Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, 50018, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBERBBN, 28029, Madrid, Spain
| | - G Botelho
- Centre/Department of Chemistry, Portugal
| | | | - José L Vilas-Vilela
- BCMaterials, Parque Científico y Tecnológico de Bizkaia, 48160, Derio, Spain; Macromolecular Chemistry Research Group (LABQUIMAC), Dept. of Physical Chemistry. Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain
| | - S Lanceros-Mendez
- BCMaterials, Parque Científico y Tecnológico de Bizkaia, 48160, Derio, Spain; IKERBASQUE, Basque Foundation for Science, 48013, Bilbao, Spain.
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28
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Teixeira MA, Paiva MC, Amorim MTP, Felgueiras HP. Electrospun Nanocomposites Containing Cellulose and Its Derivatives Modified with Specialized Biomolecules for an Enhanced Wound Healing. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E557. [PMID: 32204521 PMCID: PMC7153368 DOI: 10.3390/nano10030557] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/12/2020] [Accepted: 03/15/2020] [Indexed: 01/16/2023]
Abstract
Wound healing requires careful, directed, and effective therapies to prevent infections and accelerate tissue regeneration. In light of these demands, active biomolecules with antibacterial properties and/or healing capacities have been functionalized onto nanostructured polymeric dressings and their synergistic effect examined. In this work, various antibiotics, nanoparticles, and natural extract-derived products that were used in association with electrospun nanocomposites containing cellulose, cellulose acetate and different types of nanocellulose (cellulose nanocrystals, cellulose nanofibrils, and bacterial cellulose) have been reviewed. Renewable, natural-origin compounds are gaining more relevance each day as potential alternatives to synthetic materials, since the former undesirable footprints in biomedicine, the environment, and the ecosystems are reaching concerning levels. Therefore, cellulose and its derivatives have been the object of numerous biomedical studies, in which their biocompatibility, biodegradability, and, most importantly, sustainability and abundance, have been determinant. A complete overview of the recently produced cellulose-containing nanofibrous meshes for wound healing applications was provided. Moreover, the current challenges that are faced by cellulose acetate- and nanocellulose-containing wound dressing formulations, processed by electrospinning, were also enumerated.
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Affiliation(s)
- Marta A. Teixeira
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal; (M.A.T.); (M.T.P.A.)
| | - Maria C. Paiva
- Department of Polymer Engineering, Institute for Polymers and Composites/i3N, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal;
| | - M. Teresa P. Amorim
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal; (M.A.T.); (M.T.P.A.)
| | - Helena P. Felgueiras
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal; (M.A.T.); (M.T.P.A.)
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29
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Wu S, Ahmad Z, Li JS, Chang MW. Fabrication of flexible composite drug films via foldable linkages using electrohydrodynamic printing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110393. [DOI: 10.1016/j.msec.2019.110393] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 11/01/2019] [Accepted: 11/01/2019] [Indexed: 11/25/2022]
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30
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Wang S, Li F, Dai X, Wang C, Lv X, Waterhouse GIN, Fan H, Ai S. Highly flexible and stable carbon nitride/cellulose acetate porous films with enhanced photocatalytic activity for contaminants removal from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121417. [PMID: 31624002 DOI: 10.1016/j.jhazmat.2019.121417] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 10/06/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
This study describes the successful fabrication of flexible photocatalytic films to remove contaminants from wastewater, the film is comprising sulfuric acid treated graphitic carbon nitride (SA-g-C3N4) embedded within a porous cellulose network (denoted here as CN/CA films). The SA-g-C3N4 content in the films was varied from 0 to 50 wt.%. The sulfuric acid treatment introduced carboxyl and sulfonyl groups on the surface of g-C3N4, which resulted in strong hydrogen bonding with the hydroxyl groups of cellulose acetate (so strong the partial delimination of the SA-g-C3N4 occurred on CN/CA film formation via solvent casting). The obtained films were around 10 μm in thickness, extremely flexible and durable, with the SA-g-C3N4 uniformly distributed throughout the cellulose acetate network. The CN/CA films showed excellent activities for aqueous dye degradation under direct sunlight, as well as outstanding performance for photocatalytic reduction of Cr (VI). The photocatalytic activity of the CN/CA films at the optimum SA-g-C3N4 content of 50 wt.% was far higher than that of pristine SA-g-C3N4, highlighting a main advantage of the composite film fabrication strategy introduced here. Further, the CN/CA films showed excellent stability and reusability, with no loss in activity seen over 5 cycles of dye degradation.
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Affiliation(s)
- Siyu Wang
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Fei Li
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Xiaohui Dai
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Chuanjun Wang
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Xintao Lv
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Geoffrey I N Waterhouse
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China; School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Hai Fan
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China.
| | - Shiyun Ai
- School of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China.
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31
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Nu DTT, Duyen NTM, Linh NTT, Van Hoang C, Hung NP. Preparation and characterization of nano δ-MnO 2
-blended cellulose acetate membrane. VIETNAM JOURNAL OF CHEMISTRY 2020. [DOI: 10.1002/vjch.2019000115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dang Thi To Nu
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
| | - Nguyen Thi My Duyen
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
| | - Nguyen Thi Thuy Linh
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
| | - Cao Van Hoang
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
| | - Nguyen Phi Hung
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
- Institute of Pedagogical and Educational Science (IPES), Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
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32
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Rocha ACDL, Kligerman DC, Oliveira JLDM. Panorama da pesquisa sobre tratamento e reúso de efluentes da indústria de antibióticos. SAÚDE EM DEBATE 2019. [DOI: 10.1590/0103-11042019s312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO Este trabalho realizou uma revisão integrativa de artigos científicos indexados entre 2007 e 2017 em diferentes bases de dados sobre o tratamento e o reúso de efluentes provenientes da indústria de antibióticos. Foram encontrados 31 artigos, sendo que somente 4 abordaram o reúso de efluente, e 1 utilizou um sistema de tratamento em escala real. A maior parte desses estudos foi realizado na Ásia, com destaque para a China. Observa-se que, no Brasil, que é um dos grandes produtores e consumidores de fármacos do mundo, esse tipo de pesquisa ainda é incipiente. Os processos mais encontrados foram os oxidativos avançados que mostraram maior eficiência na remoção de antibióticos, mas podem gerar subprodutos, o que pode representar um risco ainda maior dependendo da substância formada. Os processos biológicos devem ser primeiramente aclimatados aos antibióticos para não serem impactados, entretanto, a liberação desses micro-organismos resistentes no corpo receptor também apresenta um risco ambiental. Os sistemas integrados de membranas ao biológico também foram bem eficientes, mas atenta-se ao risco na destinação final dessas membranas que foram capazes de reter esses compostos. No geral, são necessários mais estudos sobre essa abordagem para reduzir os riscos no desenvolvimento de micro-organismos multirresistentes no meio ambiente.
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Walker BW, Lara RP, Mogadam E, Yu CH, Kimball W, Annabi N. Rational Design of Microfabricated Electroconductive Hydrogels for Biomedical Applications. Prog Polym Sci 2019; 92:135-157. [PMID: 32831422 PMCID: PMC7441850 DOI: 10.1016/j.progpolymsci.2019.02.007] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Electroconductive hydrogels (ECHs) are highly hydrated 3D networks generated through the incorporation of conductive polymers, nanoparticles, and other conductive materials into polymeric hydrogels. ECHs combine several advantageous properties of inherently conductive materials with the highly tunable physical and biochemical properties of hydrogels. Recently, the development of biocompatible ECHs has been investigated for various biomedical applications, such as tissue engineering, drug delivery, biosensors, flexible electronics, and other implantable medical devices. Several methods for the synthesis of ECHs have been reported, which include the incorporation of electrically conductive materials such as gold and silver nanoparticles, graphene, and carbon nanotubes, as well as various conductive polymers (CPs), such as polyaniline, polypyrrole, and poly(3,4-ethylenedioxyythiophene) into hydrogel networks. Theses electroconductive composite hydrogels can be used as scaffolds with high swellability, tunable mechanical properties, and the capability to support cell growth both in vitro and in vivo. Furthermore, recent advancements in microfabrication techniques such as three dimensional (3D) bioprinting, micropatterning, and electrospinning have led to the development of ECHs with biomimetic microarchitectures that reproduce the characteristics of the native extracellular matrix (ECM). In addition, smart ECHs with controlled structures and healing properties have also been engineered into devices with prolonged half-lives and increased durability. The combination of sophisticated synthesis chemistries and modern microfabrication techniques have led to engineer smart ECHs with advanced architectures, geometries, and functionalities that are being increasingly used in drug delivery systems, biosensors, tissue engineering, and soft electronics. In this review, we will summarize different strategies to synthesize conductive biomaterials. We will also discuss the advanced microfabrication techniques used to fabricate ECHs with complex 3D architectures, as well as various biomedical applications of microfabricated ECHs.
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Affiliation(s)
- Brian W Walker
- Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, CA, 90095, USA
| | - Roberto Portillo Lara
- Department of Chemical Engineering, Northeastern University, Boston, MA, 02115, USA
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Zapopan, JAL, Mexico
| | - Emad Mogadam
- Department of Internal Medicine, Huntington Hospital, Pasadena, CA, 91105, USA
- Department of Internal Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Chu Hsiang Yu
- Department of Chemical Engineering, Northeastern University, Boston, MA, 02115, USA
| | - William Kimball
- Department of Chemical Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Nasim Annabi
- Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Biomaterials Innovation Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Center for Minimally Invasive Therapeutics (C-MIT), California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, CA, 90095, USA
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Dai Y, Liu M, Li J, Yang S, Sun Y, Sun Q, Wang W, Lu L, Zhang K, Xu J, Zheng W, Hu Z, Yang Y, Gao Y, Liu Z. A review on pollution situation and treatment methods of tetracycline in groundwater. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1577445] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yingjie Dai
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Mei Liu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Jingjing Li
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Shengshu Yang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Yue Sun
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Qiya Sun
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Wensi Wang
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Lu Lu
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Kexin Zhang
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Jiayi Xu
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Wenlei Zheng
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Zhaoyue Hu
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Yahan Yang
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Yuewen Gao
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Zhihua Liu
- Laboratory of Environmental Remediation, College of Resources and Environment, Northeast Agricultural University, Harbin, China
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Qiao J, Zhang H, Li G, Li S, Qu Z, Zhang M, Wang J, Song Y. Fabrication of a novel Z-scheme SrTiO3/Ag2S/CoWO4 composite and its application in sonocatalytic degradation of tetracyclines. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.10.058] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Abstract
The potential emerging pollutants (PEPs) such as hazardous chemicals, toxic metals, bio-wastes, etc., pose a severe threat to human health, hygiene and ecology by way of polluting the environment and water sources. The PEPs are originated from various industrial effluent discharges including pharmaceutical, food and metal processing industries. These PEPs in contact with water may pollute the water and disturb the aquatic life. Innumerable methods have been used for the treatment of effluents and separating the toxic chemicals/metals. Of these methods, membrane-based separation processes (MBSPs) are effective over the conventional techniques for providing clean water from wastewater streams at an affordable cost with minimum energy requirement. Microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), reverse osmosis (RO), and forward osmosis (FO) methods as well as hybrid technologies are discussed citing the published results of the past decade.
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37
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Natural Minerals as Support of Silicotungstic Acid for Photocatalytic Degradation of Methylene Blue in Wastewater. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-1007-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Khoshnevisan K, Maleki H, Samadian H, Shahsavari S, Sarrafzadeh MH, Larijani B, Dorkoosh FA, Haghpanah V, Khorramizadeh MR. Cellulose acetate electrospun nanofibers for drug delivery systems: Applications and recent advances. Carbohydr Polym 2018; 198:131-141. [DOI: 10.1016/j.carbpol.2018.06.072] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/16/2018] [Accepted: 06/14/2018] [Indexed: 01/31/2023]
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39
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Facile fabrication of silver nanoparticles deposited cellulose microfiber nanocomposites for catalytic application. J Colloid Interface Sci 2018; 526:194-200. [DOI: 10.1016/j.jcis.2018.04.045] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 01/27/2023]
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40
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Wang C, Ma Y, Lang J, Chai Z, Li G, Wang X. A novel heterogeneous photocatalyst for Cr (VI) reduction via planting silicotungstic acid on the surface of calcium tantalate. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.02.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Snoussi Y, Bastide S, Abderrabba M, Chehimi MM. Sonochemical synthesis of Fe 3O 4@NH 2-mesoporous silica@Polypyrrole/Pd: A core/double shell nanocomposite for catalytic applications. ULTRASONICS SONOCHEMISTRY 2018; 41:551-561. [PMID: 29137786 DOI: 10.1016/j.ultsonch.2017.10.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/22/2017] [Accepted: 10/22/2017] [Indexed: 05/18/2023]
Abstract
There is a growing interest in sonochemistry for either the controlled design of nanostructured materials or for the synthesis of polymers and polymer composites. It is fast and highly efficient method that provides materials with exceptional and enhanced structural and chemical properties. Herein, we take advantage of the versatile sonochemical process in order to design core/double layered shell nanocomposite denoted by Fe3O4@NH2-mesoporous silica@ PPy/Pd. This magnetic, multicomponent material was designed in a three-step sono-process: (i) synthesis of magnetic core, (ii) cure of mesoporous silica, and (iii) sonochemical deposition of PPy/Pd. This last step was achieved within 1 h, a much shorter duration compared to conventional routes which usually take several hours to few days. The final nanocomposite can be recovered with a simple magnetic stick. X-ray diffraction patterns highlighted the presence of zerovalent palladium on the surface of the magnetic nanocomposite. The catalytic activity of the solid support was investigated by the study of the p-nitrophenol (p-NP) reduction and the Methyl Orange (MO) degradation in aqueous media. Results showed a very high catalytic efficiency, a high conversion yield of p-NP into 4-aminophenol (more than 94%) and an almost entire degradation of MO (99%) with a fast kinetics fitting to the first order model. This work demonstrates conclusively the benefits of sonochemistry in the design of metal nanoparticle-decorated inorganic/polymer hybrid system with outstanding performances.
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Affiliation(s)
- Youssef Snoussi
- Laboratory of Materials, Molecules and Applications, IPEST, University of Carthage, Sidi Bou Said Road, B.P. 51 2070, La Marsa, Tunisia; Faculté des Sciences de Bizerte, Université de Carthage, Bizerte, Tunisia.
| | - Stéphane Bastide
- Université Paris Est, ICMPE (UMR 7182), CNRS, UPEC, 2-8 rue Henri Dunant, 94320 Thiais, France
| | - Manef Abderrabba
- Laboratory of Materials, Molecules and Applications, IPEST, University of Carthage, Sidi Bou Said Road, B.P. 51 2070, La Marsa, Tunisia
| | - Mohamed M Chehimi
- Université Paris Est, ICMPE (UMR 7182), CNRS, UPEC, 2-8 rue Henri Dunant, 94320 Thiais, France.
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Suo F, Xie G, Zhang J, Li J, Li C, Liu X, Zhang Y, Ma Y, Ji M. A carbonised sieve-like corn straw cellulose–graphene oxide composite for organophosphorus pesticide removal. RSC Adv 2018; 8:7735-7743. [PMID: 35539124 PMCID: PMC9078477 DOI: 10.1039/c7ra12898c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 02/12/2018] [Indexed: 12/17/2022] Open
Abstract
The development of efficient adsorbents for the removal of organophosphorus pesticides from water is a major challenge. In this work, we prepared an activated carbon derived from sieve-like cellulose/graphene oxide composites (ACCE/G) for the removal of several organophosphorus pesticides. We employed corn straw to produce a sieve-like cellulose–graphene oxide composite (CCE/G); then, by treating CCE/G with potassium hydroxide at high temperatures, the efficient adsorbent ACCE/G was prepared. The adsorption capacity of ACCE/G is higher than those of other sorbents, including a multi-wall carbon nanotube, graphitised carbon black, activated carbon, C18, and primary secondary amine adsorbent. The ACCE/G structure has been fully characterised via scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and Brunauer–Emmett–Teller analysis. The maximum adsorption capacity of ACCE/G is 152.5 mg g−1 for chlorpyrifos. The mechanism, the thermodynamic properties, and the kinetics of the adsorption process have been investigated as well. Our findings demonstrate that the adsorption mechanism depends on the electron-donating abilities of the S and P atoms. Moreover, the Langmuir model gives the best fit for the isotherm data, and the adsorption efficiency of the ACCE/G is still over 80% after eight times of recycling, making ACCE/G a valuable candidate for the removal of OPPs. Synthesizing a reusable adsorbent from waste corn straw is a sustainable way to utilize secondary resources and purify water.![]()
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Affiliation(s)
- Fengyue Suo
- College of Plant Protection
- Shenyang Agricultural University
- Shenyang 110866
- China
| | - Guixian Xie
- College of Resources and Environment
- Hunan Agricultural University
- Changsha 410128
- China
| | - Jie Zhang
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Jingyu Li
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Changsheng Li
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Xue Liu
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Yunpeng Zhang
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Yongqiang Ma
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - MingShan Ji
- College of Plant Protection
- Shenyang Agricultural University
- Shenyang 110866
- China
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