Synthesis and characterization of lamellar-like Cu2(OH)3NO3 nanosheets integrated with Mg(OH)2 nanoparticles heterojunction for photocatalytic activity

Karthigaimuthu Dharmalingam, Vijayakumar Gurudevan, Gokulnath Dhanasekaran, Deepak Sekar, Ramalingam Gopal, Dalal Alshamsi, Elangovan Thangavel, Sangaraju Sambasivam

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this study, the different coloured Mg(OH)2/Cu2(OH)3NO3 nanocomposites were prepared by the facile co-precipitation method. The prepared white Mg(OH)2 (MH), pale light-blue (MC-1), dark-brown (MC-2) and dim-grey (MC-3)-coloured Mg(OH)2/Cu2(OH)3NO3 nanocomposites were analysed by different characterization techniques. The XRD, FTIR and XPS analyses confirm the formation of MH, MC-1, MC-2 and MC-3. The optical properties were analysed via UV-DRS and the band gaps (E g) of MH, MC-1, MC-2 and MC-3 were estimated to be 4.19, 3.2, 3.27 and 3.34 eV, respectively. The morphology of MH, MC-1 and MC-2 shows nanoparticle, lamellar-like nanosheet and nanoflakes structures. The prepared samples were used to study the photocatalytic degradation of rhodamine B (RhB) and methyl orange (MO) dyes under UV–Visible light. The prepared plane blue MC-1 catalyst achieved higher degradation efficiency (92% for RhB and 95% for MO) than other samples. The Z-scheme charge transfer mechanism was confirmed by scavenger activity. Graphical abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)231-247
Number of pages17
JournalJournal of Materials Research
Volume39
Issue number2
DOIs
Publication statusPublished - Jan 28 2024

Keywords

  • Colours
  • Cu(OH)NO
  • Methyl orange (MO)
  • Mg(OH)
  • Photocatalytic activity
  • Rhodamine B (RhB)

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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