Retraction notices

Study of photocatalytic activity of green synthesized nickel oxide nanoparticles in the degradation of acid orange 7 dye under visible light

Type

Retraction

Notice date

4/30/2026 0:00

Journal

Bioprocess and Biosystems Engineering

Publisher

Springer - Nature Publishing Group

Notice DOI

10.1007/s00449-026-03348-0

Original paper DOI

10.1007/s00449-021-02636-1

Reasons

• Concerns/Issues about Data
• Concerns/Issues about Image
• Objections by Author(s)
• Unreliable Results and/or Conclusions

Matching venue names

Name match only, not an authoritative journal identifier.

• Bioprocess and Biosystems Engineering