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Title: Cu/cuo composite track-etched membranes for catalytic decomposition of nitrophenols and removal of as(III)
Authors: Mashentseva, A. A.
Barsbay, M.
Zdorovets, M. V.
Zheltov, D. A.
Güven, O.
Issue Date: 2020
Publisher: MDPI AG
Citation: Cu/cuo composite track-etched membranes for catalytic decomposition of nitrophenols and removal of as(III) / A. A. Mashentseva, M. Barsbay, M. V. Zdorovets, D. A. Zheltov, et al. . — DOI 10.3390/nano10081552 // Nanomaterials. — 2020. — Vol. 8. — Iss. 10. — P. 1-21.
Abstract: One of the promising applications of nanomaterials is to use them as catalysts and sorbents to remove toxic pollutants such as nitroaromatic compounds and heavy metal ions for environmental protection. This work reports the synthesis of Cu/CuO-deposited composite track-etched membranes through low-temperature annealing and their application in catalysis and sorption. The synthesized Cu/CuO/poly(ethylene terephthalate) (PET) composites presented efficient catalytic activity with high conversion yield in the reduction of nitro aryl compounds to their corresponding amino derivatives. It has been found that increasing the time of annealing raises the ratio of the copper(II) oxide (CuO) tenorite phase in the structure, which leads to a significant increase in the catalytic activity of the composites. The samples presented maximum catalytic activity after 5 h of annealing, where the ratio of CuO phase and the degree of crystallinity were 64.3% and 62.7%, respectively. The catalytic activity of pristine and annealed composites was tested in the reduction of 4-nitroaniline and was shown to remain practically unchanged for five consecutive test cycles. Composites annealed at 140 °C were also tested for their capacity to absorb arsenic(III) ions in cross-flow mode. It was observed that the sorption capacity of composite membranes increased by 48.7% compared to the pristine sample and reached its maximum after 10 h of annealing, then gradually decreased by 24% with further annealing. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85090671229
WOS ID: 000564890900001
PURE ID: 13915864
ISSN: 2079-4991
DOI: 10.3390/nano10081552
metadata.dc.description.sponsorship: Ministry of Education and Science of the Republic of Kazakhstan: AP05130797
Funding: A.M. gratefully acknowledges the funding of the Ministry of Education and Science of the Republic of Kazakhstan (Project AP05130797).
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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