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Xu Y, Shen W. Flocculation synergistic with nano zero-valent iron augmented attapulgite @ chitosan as Fenton-like catalyst for the treatment of landfill leachate. ENVIRONMENTAL TECHNOLOGY 2023; 44:3605-3613. [PMID: 35440289 DOI: 10.1080/09593330.2022.2068377] [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: 09/30/2021] [Accepted: 04/02/2022] [Indexed: 06/14/2023]
Abstract
In this study, nano-zero-valent iron (NZVI) was added to attapulgite/chitosan and used as a catalyst in the heterogeneous Fenton process to degrade stabilized landfill leachate. Landfill leachate has serious environmental impacts due to the complexity and diversity of its pollutants. A magnetic catalyst (NZVI@PATP/CS) was prepared by a liquid-phase reduction method. The NZVI@PATP/CS were characterized by XRD, FTIR and SEM. The pH of leachate and the dosage of catalyst and H2O2 were changed to determine the best-operating conditions for the effective removal of chemical oxygen demand (COD) and total phosphorus(TP). To understand the adsorption degradation mechanism, the quenching experiments of free radicals were carried out. The results showed that the degradation rates of COD and TP were 66% and 92%, respectively, under the optimum pH value of 8, the dosage of H2O2 of 5 mL, and the dosage of the catalyst of 0.25 g for 60 min.
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Affiliation(s)
- Yongyao Xu
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui, People's Republic of China
- College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang, Sichuan, People's Republic of China
| | - Wangqing Shen
- College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang, Sichuan, People's Republic of China
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2
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Lazar MM, Ghiorghita CA, Dragan ES, Humelnicu D, Dinu MV. Ion-Imprinted Polymeric Materials for Selective Adsorption of Heavy Metal Ions from Aqueous Solution. Molecules 2023; 28:molecules28062798. [PMID: 36985770 PMCID: PMC10055817 DOI: 10.3390/molecules28062798] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
The introduction of selective recognition sites toward certain heavy metal ions (HMIs) is a great challenge, which has a major role when the separation of species with similar physicochemical features is considered. In this context, ion-imprinted polymers (IIPs) developed based on the principle of molecular imprinting methodology, have emerged as an innovative solution. Recent advances in IIPs have shown that they exhibit higher selectivity coefficients than non-imprinted ones, which could support a large range of environmental applications starting from extraction and monitoring of HMIs to their detection and quantification. This review will emphasize the application of IIPs for selective removal of transition metal ions (including HMIs, precious metal ions, radionuclides, and rare earth metal ions) from aqueous solution by critically analyzing the most relevant literature studies from the last decade. In the first part of this review, the chemical components of IIPs, the main ion-imprinting technologies as well as the characterization methods used to evaluate the binding properties are briefly presented. In the second part, synthesis parameters, adsorption performance, and a descriptive analysis of solid phase extraction of heavy metal ions by various IIPs are provided.
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Affiliation(s)
- Maria Marinela Lazar
- Department of Functional Polymers, Petru Poni Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
| | - Claudiu-Augustin Ghiorghita
- Department of Functional Polymers, Petru Poni Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
| | - Ecaterina Stela Dragan
- Department of Functional Polymers, Petru Poni Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
| | - Doina Humelnicu
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iasi, Carol I Bd. 11, 700506 Iasi, Romania
| | - Maria Valentina Dinu
- Department of Functional Polymers, Petru Poni Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
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Preparation of a Heterogeneous Catalyst CuO-Fe2O3/CTS-ATP and Degradation of Methylene Blue and Ciprofloxacin. COATINGS 2022. [DOI: 10.3390/coatings12050559] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A heterogeneous particle catalyst (CuO-Fe2O3/CTS-ATP) was synthesized via injection molding and ultrasonic immersion method, which is fast and effective. The particle catalyst applied attapulgite (ATP) wrapped by chitosan (CTS) as support, which was loaded dual metal oxides CuO and Fe2O3 as active components. After a series of characterizations of catalysts, it was found that CuO and Fe2O3 were successfully and evenly loaded on the surface of the CTS-ATP support. The catalyst was used to degrade methylene blue (MB) and ciprofloxacin (CIP), and the experimental results showed that the degradation ratios of MB and CIP can reach 99.29% and 86.2%, respectively, in the optimal conditions. The degradation mechanism of as-prepared catalyst was analyzed according to its synthesis process and ∙OH production, and the double-cycle catalytic mechanism was proposed. The intermediate products of MB and CIP degradation were also identified by HPLC-MS, and the possible degradation pathways were put forward.
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Patti A, Acierno D. Towards the Sustainability of the Plastic Industry through Biopolymers: Properties and Potential Applications to the Textiles World. Polymers (Basel) 2022; 14:692. [PMID: 35215604 PMCID: PMC8878127 DOI: 10.3390/polym14040692] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 12/11/2022] Open
Abstract
This study aims to provide an overview of the latest research studies on the use of biopolymers in various textile processes, from spinning processes to dyeing and finishing treatment, proposed as a possible solution to reduce the environmental impact of the textile industry. Recently, awareness of various polluting aspects of textile production, based on petroleum derivatives, has grown significantly. Environmental issues resulting from greenhouse gas emissions, and waste accumulation in nature and landfills, have pushed research activities toward more sustainable, low-impact alternatives. Polymers derived from renewable resources and/or with biodegradable characteristics were investigated as follows: (i) as constituent materials in yarn production, in view of their superior ability to be decomposed compared with common synthetic petroleum-derived plastics, positive antibacterial activities, good breathability, and mechanical properties; (ii) in textile finishing to act as biological catalysts; (iii) to impart specific functional properties to treated textiles; (iv) in 3D printing technologies on fabric surfaces to replace traditionally more pollutive dye-based and inkjet printing; and (v) in the implants for the treatment of dye-contaminated water. Finally, current projects led by well-known companies on the development of new materials for the textile market are presented.
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Affiliation(s)
- Antonella Patti
- Department of Civil Engineering and Architecture (DICAr), University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Domenico Acierno
- CRdC Nuove Tecnologie per le Attività Produttive Scarl, Via Nuova Agnano 11, 80125 Naples, Italy
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Applications of Chitosan in Molecularly and Ion Imprinted Polymers. CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s42250-020-00177-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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The synthesis and adsorption performance of polyamine Cu2+ imprinted polymer for selective removal of Cu2+. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-1905-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ruiz-Hitzky E, Darder M, Alcântara ACS, Wicklein B, Aranda P. Functional Nanocomposites Based on Fibrous Clays. FUNCTIONAL POLYMER COMPOSITES WITH NANOCLAYS 2016. [DOI: 10.1039/9781782626725-00001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
This chapter is focused on functional nanocomposites based on the use of the microfibrous clays sepiolite and palygorskite as efficient fillers for diverse types of polymer matrices, from typical thermoplastics to biopolymers. The main features that govern the interaction between the silicates and the polymer matrix are discussed. The introduction addresses the structural and textural features of the fibrous silicates, as well as the possible synthetic approaches to increase the compatibility of these nanofillers with the polymeric matrix. Additionally, these clays can be easily functionalized through their surface silanol groups based on chemical reactions or by anchoring of nanoparticles. This allows for the preparation of a wide variety of functional polymer–clay nanocomposites. Thereafter, some relevant examples of nanocomposites derived from conventional polymers are reported, as well as of those based on polymers that exhibit electrical conductivity. Lastly, selected works employing sepiolite or palygorskite as fillers in polymeric matrixes of natural origin are discussed, showing the wide application of these resulting nanocomposites as bioplastics, as well as in biomedicine, environmental remediation and the development of sensor devices.
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Affiliation(s)
- Eduardo Ruiz-Hitzky
- Instituto de Ciencia de Materiales de Madrid CSIC, c/ Sor Juana Inés de la Cruz 3 28049 Madrid Spain
| | - Margarita Darder
- Instituto de Ciencia de Materiales de Madrid CSIC, c/ Sor Juana Inés de la Cruz 3 28049 Madrid Spain
| | - Ana C. S. Alcântara
- Universidade Federal do Maranhão (UFMA), Departamento de Química (DEQUI) São Luís-MA Brazil
| | - Bernd Wicklein
- Instituto de Ciencia de Materiales de Madrid CSIC, c/ Sor Juana Inés de la Cruz 3 28049 Madrid Spain
| | - Pilar Aranda
- Instituto de Ciencia de Materiales de Madrid CSIC, c/ Sor Juana Inés de la Cruz 3 28049 Madrid Spain
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Yu SL, Dai Y, Cao XH, Zhang ZB, Liu YH, Ma HJ, Xiao SJ, Lai ZJ, Chen HJ, Zheng ZY, Le ZG. Adsorption of uranium(VI) from aqueous solution using a novel magnetic hydrothermal cross-linking chitosan. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-016-4898-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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9
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Yang ZW, Liang XX, Xu XQ, Lei C, He XL, Song T, Huo WY, Ma HC, Lei ZQ. PGS@B–N: an efficient flame retardant to improve simultaneously the interfacial interaction and the flame retardancy of EVA. RSC Adv 2016. [DOI: 10.1039/c6ra11804f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
EVA/PGS@B–N composites with suitable loadings of PGS@B–N particles have significantly improved flame retardancy.
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Affiliation(s)
- Zhi-Wang Yang
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Xi-Xi Liang
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Xue-Qing Xu
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Cheng Lei
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Xin-li He
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Ting Song
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Wen-Yan Huo
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Heng-Chang Ma
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Zi-Qiang Lei
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
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Yoshida W, Oshima T, Baba Y, Goto M. Cu(II)-Imprinted Chitosan Derivative Containing Carboxyl Groups for the Selective Removal of Cu(II) from Aqueous Solution. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2016. [DOI: 10.1252/jcej.15we293] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wataru Yoshida
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
| | - Tatsuya Oshima
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki
| | - Yoshinari Baba
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki
| | - Masahiro Goto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
- Center for Future Chemistry, Kyushu University
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Wang J, Li Z. Enhanced selective removal of Cu(II) from aqueous solution by novel polyethylenimine-functionalized ion imprinted hydrogel: Behaviors and mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2015; 300:18-28. [PMID: 26151381 DOI: 10.1016/j.jhazmat.2015.06.043] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 05/15/2015] [Accepted: 06/19/2015] [Indexed: 05/25/2023]
Abstract
A novel polyethylenimine-functionalized ion-imprinted hydrogel (Cu(II)-p(PEI/HEA)) was newly synthesized by (60)Co-γ-induced polymerization for the selective removal of Cu(II) from aqueous solution. The adsorption performances including the adsorption capacity and selectivity of the novel hydrogel were much better than those of similar adsorbents reported. The hydrogel was characterized via scanning electron microscope, transmission electron microscopy, Fourier transform infrared spectra, thermal gravimetric analysis and X-ray photoelectron spectroscopy to determine the structure and mechanisms. The adsorption process was pH and temperature sensitive, better fitted to pseudo-second-order equation, and was Langmuir monolayer adsorption. The maximum adsorption capacity for Cu(II) was 40.00 mg/g. The selectivity coefficients of ion-imprinted hydrogel for Cu(II)/Pb(II), Cu(II)/Cd(II) and Cu(II)/Ni(II) were 55.09, 107.47 and 63.12, respectively, which were 3.93, 4.25 and 3.53 times greater than those of non-imprinted hydrogel, respectively. Moreover, the adsorption capacity of Cu(II)-p(PEI/HEA) could still keep more than 85% after four adsorption-desorption cycles. Because of such enhanced selective removal performance and excellent regeneration property, Cu(II)-p(PEI/HEA) is a promising adsorbent for the selective removal of copper ions from wastewater.
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Affiliation(s)
- Jingjing Wang
- State Key Laboratory of Pollutant Control and Resource Reuse, Nanjing 210023, China; School of the Environment, Nanjing University, Nanjing 210023, China
| | - Zhengkui Li
- State Key Laboratory of Pollutant Control and Resource Reuse, Nanjing 210023, China; School of the Environment, Nanjing University, Nanjing 210023, China.
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Chitosan in Molecularly-Imprinted Polymers: Current and Future Prospects. Int J Mol Sci 2015; 16:18328-47. [PMID: 26262607 PMCID: PMC4581248 DOI: 10.3390/ijms160818328] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 07/29/2015] [Accepted: 07/30/2015] [Indexed: 01/21/2023] Open
Abstract
Chitosan is widely used in molecular imprinting technology (MIT) as a functional monomer or supporting matrix because of its low cost and high contents of amino and hydroxyl functional groups. The various excellent properties of chitosan, which include nontoxicity, biodegradability, biocompatibility, and attractive physical and mechanical performances, make chitosan a promising alternative to conventional functional monomers. Recently, chitosan molecularly-imprinted polymers have gained considerable attention and showed significant potential in many fields, such as curbing environmental pollution, medicine, protein separation and identification, and chiral-compound separation. These extensive applications are due to the polymers' desired selectivity, physical robustness, and thermal stability, as well as their low cost and easy preparation. Cross-linkers, which fix the functional groups of chitosan around imprinted molecules, play an important role in chitosan molecularly-imprinted polymers. This review summarizes the important cross-linkers of chitosan molecularly-imprinted polymers and illustrates the cross-linking mechanism of chitosan and cross-linkers based on the two glucosamine units. Finally, some significant attempts to further develop the application of chitosan in MIT are proposed.
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Selective sorption behavior of metal(II) ion-imprinted polymethacrylate microspheres synthesized via precipitation polymerization method. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-014-0374-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Chu G, Cai W, Shao X. Preparation of 4-butylaniline-bonded attapulgite for pre-concentration of bisphenol A in trace quantity. Talanta 2015; 136:29-34. [PMID: 25702981 DOI: 10.1016/j.talanta.2014.12.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 12/29/2014] [Accepted: 12/31/2014] [Indexed: 01/28/2023]
Abstract
Ring-opening reaction with synchronous hydrolysis was used to prepare 4-butylaniline-modified attapulgite (abbreviated as BA-ATP) for pre-concentration of bisphenol A (BPA) in trace quantity. The preparation was achieved under mild condition, and the material was characterized by Fourier transform infrared spectroscopy (FT-IR), elemental analysis, nuclear magnetic resonance (NMR) and scanning electron microscopy. BA-ATP was used in solid phase extraction (SPE), and SPE was performed in a neutral condition without regard to ionic strength. The results indicate that BA-ATP has high affinity to BPA with a maximum adsorption amount of 44mg g(-1), and the adsorption can be described by Langmuir isotherm model. The content of bisphenol A in water samples was analyzed by HPLC method with the pre-concentration using BA-ATP. The limit of detection (LOD) can be as low as 3.9ng mL(-1), and the average recoveries are in a range of 93-97% with relative standard deviation (RSD) of less than 2%.
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Affiliation(s)
- Ganghui Chu
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Wensheng Cai
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Xueguang Shao
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
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