Synthesis of a novel solid mediator Z-scheme heterojunction photocatalysis Fe3O4/C/uio66-nh2: Used for oxidation of Rh6G in water

Yen-Ju Lai; Jo-Shu Chang; Duu-Jong Lee

doi:10.1016/j.envres.2023.116264

Synthesis of a novel solid mediator Z-scheme heterojunction photocatalysis Fe₃O₄/C/uio66-nh₂: Used for oxidation of Rh6G in water

Environ Res. 2023 Aug 15;231(Pt 3):116264. doi: 10.1016/j.envres.2023.116264. Epub 2023 Jun 1.

Authors

Yen-Ju Lai¹, Jo-Shu Chang², Duu-Jong Lee³

Affiliations

¹ Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan.
² Research Center for Smart Sustainable Circular Economy, Tunghai University, Taiwan; Department of Chemical and Materials Engineering, Tunghai University, Taichung, 407, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, 701, Taiwan.
³ Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan; Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tang, Hong Kong; Department of Chemical Engineering & Materials Engineering, Yuan Ze University, Chung-li, 32003, Taiwan. Electronic address: tuclee@cityu.edu.hk.

PMID: 37270081
DOI: 10.1016/j.envres.2023.116264

Abstract

A novel mediator Z-scheme photocatalyst, Fe₃O₄/C/UiO-66-NH₂, was designed, synthesized, and characterized using SEM, TEM, FTIR, XRD, EPR, and XPS. Formulas #1 to #7 were examined using dye Rh6G dropwise tests. Carbonization of glucose forms the mediator carbon, which connects two semiconductors, Fe₃O₄ and UiO-66-NH₂, to construct the Z-scheme photocatalyst. Formula #1 generates a composite with photocatalyst activity. The band gap measurements of the constituent semiconductors support the mechanisms for the Rh6G degradation using this novel Z-scheme photocatalyst. The successful synthesis and characterization of the proposed novel Z-scheme confirm the feasibility of the tested design protocol for environmental purposes.

Keywords: Design protocols; Dye; Heterojunction; Photocatalyst; Photodegradation.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Carbon
Oxidation-Reduction
Phthalic Acids*
Water*

Substances

UiO-66
Water
Phthalic Acids
Carbon