Muhammad Zohaib, Murtaza Sayed, Faiza Rehman, Saman Gul, Saima Noreen, Saima Sohni, Ikhtiar Gul, Adnan Ali
{"title":"通过活化过氧单硫酸盐催化降解水介质中的亚甲基蓝的零阀铁/醋酸纤维素（Fe0-x/CA）膜的合成与特性分析","authors":"Muhammad Zohaib, Murtaza Sayed, Faiza Rehman, Saman Gul, Saima Noreen, Saima Sohni, Ikhtiar Gul, Adnan Ali","doi":"10.1007/s10563-024-09426-1","DOIUrl":null,"url":null,"abstract":"<div><p>The present study is focused on the synthesis of zero-valent iron/cellulose acetate (Fe<sup>0</sup>-x/CA) membranes by phase inversion route for the activation of peroxymonosulfate (PMS). The generated <sup>•</sup>OH and SO<sub>4</sub><sup>•−</sup> effectively degraded methylene blue (MB) dye in water to give comparatively non-toxic byproducts. The SEM investigations revealed that Fe<sup>0</sup> nanoparticles are evenly dispersed into the CA membrane resulting in decline of agglomeration and enhancing the roughness of the composite surface. Moreover, the catalytic degradation of MB demonstrated that M5-alone showed 85% and was further boosted to 97% when coupled with PMS (M5/HSO<sub>5</sub><sup>−</sup>). The catalytic degradation of degradation of MB by M5/HSO<sub>5</sub><sup>−</sup> membrane system in acidic, neutral, and basic media indicated that the degradation was 99.5%, 98.0%, 97.0%, 86.0% and 70.0% when the pH of the medium was 3, 5, 7, and 11, respectively. Furthermore, the degradation performance of M5/HSO<sub>5</sub><sup>−</sup> membrane system was evaluated in de-ionized water (DIW), tape water (TPW) and industrial wastewater (IWW) and the results indicated that MB catalytic degradation was in the order of DIW (97%) > TPW (84%) > IWW (68%). Besides, various parameters like water flux permeability, contact angle, porosity, and fouling performance were also investigated. In addition, the degradation products were evaluated, and the degradation pathways were proposed accordingly.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":509,"journal":{"name":"Catalysis Surveys from Asia","volume":"28 3","pages":"283 - 297"},"PeriodicalIF":2.1000,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and Characterization of Zero Valent Iron/Cellulose Acetate (Fe0-x/CA) Membranes for the Catalytic Degradation of Methylene Blue from Aqueous Media by Activating Peroxymonosulfate\",\"authors\":\"Muhammad Zohaib, Murtaza Sayed, Faiza Rehman, Saman Gul, Saima Noreen, Saima Sohni, Ikhtiar Gul, Adnan Ali\",\"doi\":\"10.1007/s10563-024-09426-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The present study is focused on the synthesis of zero-valent iron/cellulose acetate (Fe<sup>0</sup>-x/CA) membranes by phase inversion route for the activation of peroxymonosulfate (PMS). The generated <sup>•</sup>OH and SO<sub>4</sub><sup>•−</sup> effectively degraded methylene blue (MB) dye in water to give comparatively non-toxic byproducts. The SEM investigations revealed that Fe<sup>0</sup> nanoparticles are evenly dispersed into the CA membrane resulting in decline of agglomeration and enhancing the roughness of the composite surface. Moreover, the catalytic degradation of MB demonstrated that M5-alone showed 85% and was further boosted to 97% when coupled with PMS (M5/HSO<sub>5</sub><sup>−</sup>). The catalytic degradation of degradation of MB by M5/HSO<sub>5</sub><sup>−</sup> membrane system in acidic, neutral, and basic media indicated that the degradation was 99.5%, 98.0%, 97.0%, 86.0% and 70.0% when the pH of the medium was 3, 5, 7, and 11, respectively. Furthermore, the degradation performance of M5/HSO<sub>5</sub><sup>−</sup> membrane system was evaluated in de-ionized water (DIW), tape water (TPW) and industrial wastewater (IWW) and the results indicated that MB catalytic degradation was in the order of DIW (97%) > TPW (84%) > IWW (68%). Besides, various parameters like water flux permeability, contact angle, porosity, and fouling performance were also investigated. 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Synthesis and Characterization of Zero Valent Iron/Cellulose Acetate (Fe0-x/CA) Membranes for the Catalytic Degradation of Methylene Blue from Aqueous Media by Activating Peroxymonosulfate
The present study is focused on the synthesis of zero-valent iron/cellulose acetate (Fe0-x/CA) membranes by phase inversion route for the activation of peroxymonosulfate (PMS). The generated •OH and SO4•− effectively degraded methylene blue (MB) dye in water to give comparatively non-toxic byproducts. The SEM investigations revealed that Fe0 nanoparticles are evenly dispersed into the CA membrane resulting in decline of agglomeration and enhancing the roughness of the composite surface. Moreover, the catalytic degradation of MB demonstrated that M5-alone showed 85% and was further boosted to 97% when coupled with PMS (M5/HSO5−). The catalytic degradation of degradation of MB by M5/HSO5− membrane system in acidic, neutral, and basic media indicated that the degradation was 99.5%, 98.0%, 97.0%, 86.0% and 70.0% when the pH of the medium was 3, 5, 7, and 11, respectively. Furthermore, the degradation performance of M5/HSO5− membrane system was evaluated in de-ionized water (DIW), tape water (TPW) and industrial wastewater (IWW) and the results indicated that MB catalytic degradation was in the order of DIW (97%) > TPW (84%) > IWW (68%). Besides, various parameters like water flux permeability, contact angle, porosity, and fouling performance were also investigated. In addition, the degradation products were evaluated, and the degradation pathways were proposed accordingly.
期刊介绍：
Early dissemination of important findings from Asia which may lead to new concepts in catalyst design is the main aim of this journal. Rapid, invited, short reviews and perspectives from academia and industry will constitute the major part of Catalysis Surveys from Asia . Surveys of recent progress and activities in catalytic science and technology and related areas in Asia will be covered regularly as well. We would appreciate critical comments from colleagues throughout the world about articles in Catalysis Surveys from Asia . If requested and thought appropriate, the comments will be included in the journal. We will be very happy if this journal stimulates global communication between scientists and engineers in the world of catalysis.
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