Photocatalytic degradation of acetaminophen in aqueous solutions by TiO2/ZSM-5 zeolite with low energy irradiation

Chang Tang Chang, Jia Jie Wang, Tong Ouyang, Qian Zhang, You Hai Jing

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

Photocatalytic degradation of acetaminophen (Ace) in water was studied using Zeolite Socony Mobil-5 (ZSM-5) supported TiO2 materials, which were synthesized using a sol-gel method. The structural features of the photocatalysts were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and surface area (BET) measurements. The best loading content of TiO2 over ZSM-5 was 40 wt% and the initial concentration of Ace was controlled at 15 mg L-1 with low intensity irradiations of 0.97 mW cm-2, the degradation rate can reach to 96.6% after 180 min irradiation. Hydroxylation and photolysis were proposed as the initial step for Ace degradation. Main reaction intermediates and products were identified by GC-MS analysis. Additionally, the material was regenerated four times, while the degradation of Ace remained at a higher level of approximately 90%.

Original languageEnglish
Pages (from-to)53-60
Number of pages8
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume196
DOIs
Publication statusPublished - 2015 Jun
Externally publishedYes

Keywords

  • Nanomaterials
  • PPCPs
  • Photocatalyst

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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