Photocatalytic application of nickel oxide/zinc oxide nanoparticles decorated kaolinite nanocomposite for the degradation of crystal violet

Keleş Güner E., Ertugay N., Özdemir A. O., Doğan B., Çağlar B.

SPECTROSCOPY LETTERS, cilt.57, sa.5, ss.284-299, 2024 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 57 Sayı: 5
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1080/00387010.2024.2351209
  • Dergi Adı: SPECTROSCOPY LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Analytical Abstracts, Applied Science & Technology Source, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.284-299
  • Erzincan Binali Yıldırım Üniversitesi Adresli: Evet

Özet

The photocatalysis process, which is effective, economical, and environmentally friendly can over-come rapidly increasing environmental problems, has shown rapid development in recent years. Nontoxic, low-cost natural minerals are often used in photocatalysis processes that remove organic pollution from wastewater. In this study, a  selective method for the removal of crystal violet (CV) from aqueous solutions using nanocomposite of nickel oxide/zinc oxide nanoparticles (NiO/ZnO) supported on kaolinite photocatalyst was investigated. The raw kaolinite, bare NiO, bare ZnO and nanocomposite samples were characterized by the XRD, TEM, SEM-EDX, XPS and FTIR techniques. The photocatalytic performances of kaolinite-NiOZnO (K-NiO/ZnO) nanocompo-site and bare samples were also investigated and comparatively evaluated by the photodegrada-tion of CV (cationic dye) dye under visible light irradiation. The effects of various parameters such as the dosage of photocatalysis, contact time, and initial dye concentration on the rate of removal of dye were investigated and optimized. The kinetics of decolorization by samples can be well described by the pseudo-first-order model. Finally, it  can be used in advanced oxidative processes for the degradation of organic pollutants.