Acrylonitrile-Vinylidene Chloride Copolymer Film with Activated Carbon and MnO2 for Formaldehyde Degradation

Shao Wei; Zhang Hua; Gao Kai; Wan Dong; Zhang Xingxiang

doi:10.3139/120.110526

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Acrylonitrile-Vinylidene Chloride Copolymer Film with Activated Carbon and MnO₂ for Formaldehyde Degradation

Shao Wei , Zhang Hua , Gao Kai , Wan Dong und Zhang Xingxiang

Veröffentlicht/Copyright: 1. Oktober 2014

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Abstract

Acrylonitrile-vinylidene chloride (AN-VDC) copolymer films containing activated carbon, manganese dioxide nanoparticles were fabricated via casting method. The formaldehyde degradation capacity of copolymer film was investigated. The results showed that formaldehyde eliminating rate was obviously improved when copolymer film was blended with MnO₂ or activated carbon, respectively. The HCHO removal rate increased with concentration of MnO₂ or activated carbon. HCHO degradation rate of AN-VDC copolymer film without addition was 45 % for 48 h, while it was up to 90–95 % with the treatment time of 36 h after 3 wt.-% MnO₂ or activated carbon addition. Furthermore, the complex effect of MnO₂ and activated carbon on the degradation has also been studied. When 3 wt.-% MnO₂ and 1 wt.-% activated carbon was mixed into copolymer, the HCHO removal rate was about 90 % for 36 h treatment. The results demonstrated that the formaldehyde eliminating rate was enhanced by complex addition of both MnO₂ and activated carbon compared to films with single additions. The enhancement of HCHO eliminating efficiency occured due to a double effect of physical absorption of activated carbon and catalytic oxidation of MnO₂.

Kurzfassung

Acrylnitril-Vinylidenchlorid Copolymer-Schichten (AN-VDC), die Aktivkohle und Mangandioxid-Nanopartikel enthalten, wurden mittels Gießprozess hergestellt. Die Kapazität dieser Copolymerfilme Formaldehyd abzubauen wurde untersucht. Die Ergebnisse zeigen, dass die Formaldehyd-(HCHO)-Eliminierungsrate offensichtlich verbessert ist, wenn der Copolymer-Film mit MnO₂ bzw. mit Aktivkohle gemischt wird. Die HCHO-Beseitigungsrate nahm mit der Konzentration von MnO₂ oder Aktivkohle zu. Die HCHO-Abbaurate des AN-VDC-Copolymer-Films ohne Zusätze war 45 % über 48 h, während es bis zu 90–95 % bei einer Behandlungszeit von 36 h nach Zugabe von 3 wt.-% MnO₂ oder Aktivkohle betrug. Darüber hinaus wurde der komplexe Abbau-Effekt von MnO₂ und Aktivkohle untersucht. Bei einem Zusatz von 3 wt.-% MnO₂ und 1 wt.-% Aktivkohle im Coploymer, betrug die HCHO-Abbaurate 90 % bei einer Behandlungsdauer von 36 h. Die Ergebnisse zeigten, dass die Formaldehyd-Abbaurate durch die komplexe Zugabe von sowohl MnO₂ als auch Aktivkohle im Vergleich zu Filmen mit einzelnem Zusatz beschleunigt werden kann. Die Erhöhung der HCHO-Eliminierungseffizienz im doppelten Effekt der physikalischen Absorption von Aktivkohle und der katalytischen Oxidation von MnO₂ begründet.

Shao Wei was born in 1979. He received his MSc degree from Nankai University, China. He is a candidate for PhD degree from Tianjin Polytechnic University, China, now. His current research focuses on the functional adsorption fiber. He worked in Tianjin Municipal Key Lab of Fiber Modification and Functional Fiber, Institute of Functional Fibers, Tianjin Polytechnic University, China. The address is: No. 399, Binshui West Road, Xiqing district, Tianjin 300387, China.

Zhang Hua was born in 1961. She received BS, MSc and PhD degrees from Tianjin Polytechnic University, China in 1984, 1990, and 2007, respectively. She is professor and her interests are functional polymer materials, function fibers etc‥ She worked in Tianjin Municipal Key Lab of Fiber Modification and Functional Fiber, Institute of Functional Fibers, Tianjin Polytechnic University, China. The address is: No. 399, Binshui West Road, Xiqing district, Tianjin 300387, China.

Gao Kai was born in 1988. He received BS and MSc degrees from Tianjin Polytechnic University, China in 2010 and 2013, respectively. The study of adsorption of function fibers is his research. The address is: No. 399, Binshui West Road, Xiqing district, Tianjin 300387, China.

Wan Dong was born in 1989. He received BS degrees from Tianjin Polytechnic University in 2011. His research is about the study function organic fibers. The address is: No.399, Binshui West Road, Xiqing district, Tianjin 300387, China.

Zhang Xingxiang was born in 1962. He received his BS degree from Nankai University in 1984, MSc degree from Tianjin Polytechnic University, China in 1987. He obtained his PhD degree from The Hong Kong Polytechnic University in 2005. He is professor and his interests are polymer with high properties, function fibers, phase change material, etc‥ He worked in Tianjin Municipal Key Lab of Fiber Modification and Functional Fiber, Institute of Functional Fibers, Tianjin Polytechnic University, China. The address is: No. 399, Binshui West Road, Xiqing district, Tianjin 300387, China.

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Published Online: 2014-10-01

Published in Print: 2014-01-02

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https://doi.org/10.3139/120.110526