Volume 136, Issue 15 47404
Article

CuS-functionalized cellulose based aerogel as biocatalyst for removal of organic dye

Rana Muhammad Yousaf Saeed

Rana Muhammad Yousaf Saeed

Biofuels Institute, School of the Environment, Jiangsu University, Zhenjiang, 212013 China

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Zahira Bano

Zahira Bano

School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Jianzhong Sun

Jianzhong Sun

Biofuels Institute, School of the Environment, Jiangsu University, Zhenjiang, 212013 China

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Fengyun Wang

Fengyun Wang

School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Nabi Ullah

Nabi Ullah

School of Chemical Engineering, Jiangsu University, Zhenjiang, 212013 China

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Qianqian Wang

Corresponding Author

Qianqian Wang

Biofuels Institute, School of the Environment, Jiangsu University, Zhenjiang, 212013 China

State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640 China

Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, Jiangsu Province, Nanjing, 210042 China

Correspondence to: Q. Wang (E-mail: [email protected])Search for more papers by this author
First published: 20 December 2018
Citations: 38

ABSTRACT

CuS-functionalized cellulose based aerogel (CBA) with 3D macroporous structure was synthesized by in situ deposition of visible light responsive CuS photocatalyst. Hexagonal CuS was deposited onto the outer and inner walls of CBA matrix. CuS/CBA composite catalyst has hierarchical porous structure and abundance in functional groups supporting CuS on CBA surface that enhance photodecomposition of methylene blue (MB). The CuS/CBA composite was characterized by XRD, FTIR, SEM-EDS, Atomic Absorption Analysis, and XPS analysis. Photodegradation rate of MB by CuS/CBA composite catalyst in visible light was 94.1%, whereas, 67.4% for pure CuS. Initial MB concentration effects, pH change, and variations in CuS/CBA dosage on overall reaction kinetics were also studied. CuS/CBA composite catalyst carried out Photo-Fenton like reactions which decomposed 97% MB within 6 min, by producing hydroxyl radicals from chemical and photocatalytic reactions. CuS/CBA composite catalyst was recycled and reused. It retained over 80% MB degradation rate even after five consecutive cycles. CuS/CBA composite can be used as biocatalyst for removal of organic dyes. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47404.

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