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Article

Photocatalytic Efficiency of Metallo Phthalocyanine Sensitized TiO2 (MPc/TiO2) Nanocomposites for Cr(VI) and Antibiotic Amoxicillin

1
Department of Chemistry, Faculty of Science, Karadeniz Technical University, Trabzon 61080, Turkey
2
Department of Bioengineering, Konya Food and Agriculture University, Konya 42080, Turkey
*
Author to whom correspondence should be addressed.
Academic Editors: Isabella Natali Sora and Miray Bekbolet
Water 2021, 13(16), 2174; https://doi.org/10.3390/w13162174
Received: 24 June 2021 / Revised: 30 July 2021 / Accepted: 2 August 2021 / Published: 8 August 2021
(This article belongs to the Special Issue New Perspectives in Photocatalytic Water Treatment)
Dye sensitization on semiconductor catalyst TiO2 was performed with four different metallophthalocyanine (MPc) derivates (M: Zn, Cu, Co, and Si) using a modified sol-gel method. MPc derivatives were loaded on TiO2 at 1% mass ratio aiming to increase its photocatalytic action and to shift the light absorption to higher UV region (365 nm). Non-ionic surfactant Triton X-100 (TX-100) was used to obtain a homogenous and mesa pore catalyst structure. The prepared catalysts were characterized by FT-IR, XRD, and SEM to determine the crystal and surface structural properties of nanocomposites. The nanocomposites were used for photocatalytic removal and degradation of Cr(VI) and amoxicillin (AMX) as model pollutants. Photocatalytic reduction capacities of the catalysts were tested for Cr(VI) (10 mg/L) and AMX (20 mg/L) aqueous solutions. ZnPc-TiO2 catalyst was successful for Cr(VI) photoreduction since all Cr(VI) ions in the solution were successfully removed. Presence of TX-100 in the sol-gel synthesis of ZnPc-TiO2 had a positive effect by increasing the Cr(VI) removal rate to 97.93% after 150 min exposure period. Prepared catalysts were also tested for photodegradation of AMX, applying similar procedures. In general, all catalysts exhibited low degradation rates under the studied condition but more effective with 254 nm UV light (50.38%). Neither surface modification with TX-100 nor MPc sensitization provided significant degradation of AMX. View Full-Text
Keywords: photocatalysis; dye sensitization; TiO2; chromium (VI); amoxicillin (AMX); TX-100 photocatalysis; dye sensitization; TiO2; chromium (VI); amoxicillin (AMX); TX-100
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MDPI and ACS Style

Keşir, M.K.; Sökmen, M.; Bıyıklıoğlu, Z. Photocatalytic Efficiency of Metallo Phthalocyanine Sensitized TiO2 (MPc/TiO2) Nanocomposites for Cr(VI) and Antibiotic Amoxicillin. Water 2021, 13, 2174. https://doi.org/10.3390/w13162174

AMA Style

Keşir MK, Sökmen M, Bıyıklıoğlu Z. Photocatalytic Efficiency of Metallo Phthalocyanine Sensitized TiO2 (MPc/TiO2) Nanocomposites for Cr(VI) and Antibiotic Amoxicillin. Water. 2021; 13(16):2174. https://doi.org/10.3390/w13162174

Chicago/Turabian Style

Keşir, Melek Koç, Münevver Sökmen, and Zekeriya Bıyıklıoğlu. 2021. "Photocatalytic Efficiency of Metallo Phthalocyanine Sensitized TiO2 (MPc/TiO2) Nanocomposites for Cr(VI) and Antibiotic Amoxicillin" Water 13, no. 16: 2174. https://doi.org/10.3390/w13162174

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