TY - JOUR
T1 - Coordination Polymers Derived from Hydrazine as Photocatalysts for Degradation of Metronidazole from Pharmaceutical Wastewater
AU - Kayed, Safa Faris
N1 - Publisher Copyright:
© 2025 American Chemical Society.
PY - 2025/7/1
Y1 - 2025/7/1
N2 - Metronidazole (MNZ) is a common brand of nitroimidazole antibiotic, which is widely used to treat infectious diseases caused by anaerobic bacteria and protozoa. The aim of this work was to degrade MNZ from the pharmaceutical wastewater. The degradation of the antibiotic metronidazole (MNZ) from aqueous solutions was evaluated by newly synthesized coordination polymers using a photocatalytic process. Zn(II), Cu(II), Fe(II), Co(II), and Ni(II) polymers with hydrazine, namely, [ZnSO4(H2O)(NH2NH2)]n·0.5H2O, [CuSO4(H2O)(NH2NH2)]n·0.5H2O, [FeSO4(H2O)2(NH2NH2)]n·H2O, [Co(NO3)2(NH2NH2)]n, and [Ni(NO3)2(NH2NH2)]n, were synthesized. The prepared coordination polymers were characterized by elemental analysis, Fourier transformation infrared spectroscopy (FTIR), powder X-ray diffraction (PXRD), UV-visible, and VSM and thermogravimetric analysis (TGA/DTG). The removal studies were performed under the effect of UV radiation. The influences of various operational parameters such as catalyst dose, addition of hydrogen peroxide, and time of exposure on percentage photodegradation of metronidazole were evaluated. According to the experimental findings, metronidazole photodegradation increased with catalyst dose and exposure duration time. The [CuSO4(H2O)(NH2NH2)]n·0.5H2O polymer had the best photocatalytic activity under UV light among the polymers under study, reaching the maximum degradation efficiency of 92.10% following 150 min of irradiation. Finally, coordination polymers derived from hydrazine were shown to be a potential class of photocatalysts for the highly effective elimination of metronidazole from aqueous solutions.
AB - Metronidazole (MNZ) is a common brand of nitroimidazole antibiotic, which is widely used to treat infectious diseases caused by anaerobic bacteria and protozoa. The aim of this work was to degrade MNZ from the pharmaceutical wastewater. The degradation of the antibiotic metronidazole (MNZ) from aqueous solutions was evaluated by newly synthesized coordination polymers using a photocatalytic process. Zn(II), Cu(II), Fe(II), Co(II), and Ni(II) polymers with hydrazine, namely, [ZnSO4(H2O)(NH2NH2)]n·0.5H2O, [CuSO4(H2O)(NH2NH2)]n·0.5H2O, [FeSO4(H2O)2(NH2NH2)]n·H2O, [Co(NO3)2(NH2NH2)]n, and [Ni(NO3)2(NH2NH2)]n, were synthesized. The prepared coordination polymers were characterized by elemental analysis, Fourier transformation infrared spectroscopy (FTIR), powder X-ray diffraction (PXRD), UV-visible, and VSM and thermogravimetric analysis (TGA/DTG). The removal studies were performed under the effect of UV radiation. The influences of various operational parameters such as catalyst dose, addition of hydrogen peroxide, and time of exposure on percentage photodegradation of metronidazole were evaluated. According to the experimental findings, metronidazole photodegradation increased with catalyst dose and exposure duration time. The [CuSO4(H2O)(NH2NH2)]n·0.5H2O polymer had the best photocatalytic activity under UV light among the polymers under study, reaching the maximum degradation efficiency of 92.10% following 150 min of irradiation. Finally, coordination polymers derived from hydrazine were shown to be a potential class of photocatalysts for the highly effective elimination of metronidazole from aqueous solutions.
UR - http://www.scopus.com/inward/record.url?scp=105008407079&partnerID=8YFLogxK
U2 - 10.1021/acs.langmuir.5c01518
DO - 10.1021/acs.langmuir.5c01518
M3 - Article
C2 - 40513078
AN - SCOPUS:105008407079
SN - 0743-7463
VL - 41
SP - 16274
EP - 16287
JO - Langmuir
JF - Langmuir
IS - 25
ER -
