Volume 44, Issue 13 pp. 10682-10694
RESEARCH ARTICLE

Green route synthesis of nanoporous copper oxide for efficient supercapacitor and capacitive deionization performances

Paskalis Sahaya Murphin Kumar

Paskalis Sahaya Murphin Kumar

Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman

Research Center for Environmental Medicine, and Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City, Taiwan

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Htet Htet Kyaw

Htet Htet Kyaw

Nanotechnology Research Center, Sultan Qaboos University, Muscat, Oman

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Myo Tay Zar Myint

Myo Tay Zar Myint

Department of Physics, College of Science, Sultan Qaboos University, Muscat, Oman

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Lamya Al-Haj

Corresponding Author

Lamya Al-Haj

Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman

Correspondence

Lamya Al-Haj, Department of Biology, College of Science, Sultan Qaboos University, Muscat-Oman.

E-mail: [email protected]

Ala'a H. Al-Muhtaseb, Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat-Oman.

E-mail: [email protected]

Vinoth Kumar Ponnusamy, Research Center for Environmental Medicine, and Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City-807, Taiwan and Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City-807, Taiwan.

E-mail: [email protected]

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Ala'a H. Al-Muhtaseb

Corresponding Author

Ala'a H. Al-Muhtaseb

Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman

Correspondence

Lamya Al-Haj, Department of Biology, College of Science, Sultan Qaboos University, Muscat-Oman.

E-mail: [email protected]

Ala'a H. Al-Muhtaseb, Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat-Oman.

E-mail: [email protected]

Vinoth Kumar Ponnusamy, Research Center for Environmental Medicine, and Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City-807, Taiwan and Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City-807, Taiwan.

E-mail: [email protected]

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Mohammed Al-Abri

Mohammed Al-Abri

Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman

Nanotechnology Research Center, Sultan Qaboos University, Muscat, Oman

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Vembuli Thanigaivel

Vembuli Thanigaivel

Department of Applied Science and Technology, Anna University, Chennai, India

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Vinoth Kumar Ponnusamy

Corresponding Author

Vinoth Kumar Ponnusamy

Research Center for Environmental Medicine, and Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City, Taiwan

Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City, Taiwan

Correspondence

Lamya Al-Haj, Department of Biology, College of Science, Sultan Qaboos University, Muscat-Oman.

E-mail: [email protected]

Ala'a H. Al-Muhtaseb, Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat-Oman.

E-mail: [email protected]

Vinoth Kumar Ponnusamy, Research Center for Environmental Medicine, and Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City-807, Taiwan and Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City-807, Taiwan.

E-mail: [email protected]

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First published: 28 July 2020
Citations: 29

Funding information: Kaohsiung Medical University, Kaohsiung, Taiwan; Research Center for Environmental Medicine; Ministry of Science and Technology, Taiwan, Grant/Award Number: MOST107-2113-M-037-007-MY2; Petroleum Development Oman (PDO), Grant/Award Number: CR/SCI/BIOL/18/01

Summary

We demonstrate a simple template-free green method to prepare copper oxide (CuO) nanoporous material using copper acetate as a single precursor with Piper nigrum (Indian black pepper) dried fruit extract as a reducing medium under microwave irradiation. The surface properties and morphology of the obtained CuO material were assessed using powder X-ray diffractometer, X-ray photoelectron spectrometer, field-emission scanning electron microscope with elemental mapping analysis, focused ion beam high-resolution transmission electron microscope, and N2 adsorption-isotherm techniques. The characterization results reveal that the prepared CuO is a single monoclinic crystalline phase, and nanoporous in morphology with a specific surface area of 81.23 m2 g−1 and containing pore sizes between 3–8 nm. Nanoporous CuO showed excellent electrochemical energy storage performance with the specific capacitance of 238 Fg−1 at 5 mVs−1 when compared with commercially available CuO (75 Fg−1). Also, nanoporous CuO showed efficient desalting performance in the capacitive deionization system. This eco-friendly synthesis derived nanoporous CuO can be applied as high-performance supercapacitor material for high-energy storage devices and desalination processes.

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