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Nechifor AC, Cotorcea S, Bungău C, Albu PC, Pașcu D, Oprea O, Grosu AR, Pîrțac A, Nechifor G. Removing of the Sulfur Compounds by Impregnated Polypropylene Fibers with Silver Nanoparticles-Cellulose Derivatives for Air Odor Correction. Membranes (Basel) 2021; 11:256. [PMID: 33916200 PMCID: PMC8067035 DOI: 10.3390/membranes11040256] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 03/29/2021] [Indexed: 12/16/2022]
Abstract
The unpleasant odor that appears in the industrial and adjacent waste processing areas is a permanent concern for the protection of the environment and, especially, for the quality of life. Among the many variants for removing substance traces, which give an unpleasant smell to the air, membrane-based methods or techniques are viable options. Their advantages consist of installation simplicity and scaling possibility, selectivity; moreover, the flows of odorous substances are direct, automation is complete by accessible operating parameters (pH, temperature, ionic strength), and the operation costs are low. The paper presents the process of obtaining membranes from cellulosic derivatives containing silver nanoparticles, using accessible raw materials (namely motion picture films from abandoned archives). The technique used for membrane preparation was the immersion precipitation for phase inversion of cellulosic polymer solutions in methylene chloride: methanol, 2:1 volume. The membranes obtained were morphologically and structurally characterized by scanning electron microscopy (SEM) and high resolution SEM (HR SEM), energy dispersive X-ray analysis (EDAX), Fourier transform infrared spectrometry (FTIR), thermal analysis (TG, ATD). Then, the membrane performance process (extraction efficiency and species flux) was determined using hydrogen sulfide (H2S) and ethanethiol (C2H5SH) as target substances.
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Affiliation(s)
- Aurelia Cristina Nechifor
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania; (A.C.N.); (S.C.); (D.P.); (A.P.); (G.N.)
| | - Simona Cotorcea
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania; (A.C.N.); (S.C.); (D.P.); (A.P.); (G.N.)
| | - Constantin Bungău
- Department of Engineering and Management, Faculty of Management and Technological Engineering, University of Oradea, 410087 Oradea, Romania;
| | - Paul Constantin Albu
- Department of Radioisotopes and Radiation Metrology, IFIN Horia Hulubei, 30 Reactorului St., 023465 Magurele, Romania;
| | - Dumitru Pașcu
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania; (A.C.N.); (S.C.); (D.P.); (A.P.); (G.N.)
| | - Ovidiu Oprea
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania;
| | - Alexandra Raluca Grosu
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania; (A.C.N.); (S.C.); (D.P.); (A.P.); (G.N.)
| | - Andreia Pîrțac
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania; (A.C.N.); (S.C.); (D.P.); (A.P.); (G.N.)
| | - Gheorghe Nechifor
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania; (A.C.N.); (S.C.); (D.P.); (A.P.); (G.N.)
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