Facile Synthesis and Properties of Cu-Based Supported Halloysite Nanotube (HNT) Photocatalysts for Photocatalytic Degradation of Liquid Epoxidized Natural Rubber (LENR)

Abdullahi, Shehu Sa’ad; Abu Bakar, Noor Hana Hanif; Iqbal, Anwar; Yusof, Nurul Hayati

doi:10.21608/ejchem.2022.136214.6070

	Facile Synthesis and Properties of Cu-Based Supported Halloysite Nanotube (HNT) Photocatalysts for Photocatalytic Degradation of Liquid Epoxidized Natural Rubber (LENR)
Egyptian Journal of Chemistry
Volume 66, Issue 7, July 2023, Page 345-359 PDF (1.94 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2022.136214.6070
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Authors
Shehu Sa’ad Abdullahi ¹; Noor Hana Hanif Abu Bakar ²; Anwar Iqbal ²; Nurul Hayati Yusof ³
¹School of Chemical Sciences, Universiti Sains Malaysia
²School of Chemical Science, Universiti Sains Malaysia
³Malaysian Rubber Board, Engineering and Technology Division, 47000, Sungai Buluh, Selangor, Malaysia
Abstract
Cu2+-HNT nanocomposite was synthesized via impregnation of CuSO4.5H2O onto halloysite nanotube (HNT). A portion of the nanocomposite was calcined at 550 and 900 °C respectively, to obtain CuO-HNT catalysts. The FTIR, XRD and EDX results reveals the successful formation of nanocomposites. This is consistent with the decrease in the nanocomposite SBET and pore volume for Cu2+-HNT, and CuO-HNT calcined at 550 and 900 °C, respectively, when compared to HNT. Optical properties of both the HNT, and nanocomposites show a decrease in the bandgaps of the nanocomposites. The GPC results of pristine LENR (P-LENR) and photo-degraded LENR showed that LENR treated with calcined CuO-HNT at 550 °C gives lowest LENR molecular weight of 3,105 g/mol compared to 25,732 g/mol of P-LENR with 88 % degradation within 3 hours UV-irradiation. Changes in the functional group of degraded LENR was observed.
Keywords
Calcined; CuO; HNT; LENR; Photodegradation


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