Synergistic effect of modified pore and heterojunction of MOF-derived α-Fe2O3/ZnO for superior photocatalytic degradation of methylene blue

Liyana Labiba Zulfa; Ratna Ediati; Alvin Romadhoni Putra Hidayat; Riki Subagyo; Nuhaa Faaizatunnisa; Yuly Kusumawati; Djoko Hartanto; Nurul Widiastuti; Wahyu Prasetyo Utomo; Mardi Santoso

doi:10.1039/d2ra07946a

Synergistic effect of modified pore and heterojunction of MOF-derived α-Fe₂O₃/ZnO for superior photocatalytic degradation of methylene blue

Liyana Labiba Zulfa, Ratna Ediati^*, Alvin Romadhoni Putra Hidayat, Riki Subagyo, Nuhaa Faaizatunnisa, Yuly Kusumawati, Djoko Hartanto, Nurul Widiastuti, Wahyu Prasetyo Utomo, Mardi Santoso

^*Corresponding author for this work

School of Energy and Environment

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

28 Citations (Scopus)

39 Downloads (CityUHK Scholars)

Abstract

Mesoporous heterojunction MOF-derived α-Fe₂O₃/ZnO composites were prepared by a simple calcination of α-Fe₂O₃/ZIF-8 as a sacrificial template. The optical properties confirm that coupling of both the modified pore and the n-n heterojunction effectively reduces the possibility of photoinduced charge carrier recombination under irradiation. The mesoporous Fe(25)ZnO with 25% loading of α-Fe₂O₃ exhibited the best performance in MB degradation, up to ∼100% after 150 minutes irradiation, higher than that of pristine ZnO and α-Fe₂O₃. Furthermore, after three cycles reusability, mesoporous Fe(25)ZnO still showed an excellent stability performance of up to 95.42% for degradation of MB. The proposed photocatalytic mechanism of mesoporous Fe(25)ZnO for the degradation of MB corresponds to the n-n heterojunction system. This study provides a valuable reference for preparing mesoporous MOF-derived metal oxides with an n-n heterojunction system to enhance MB photodegradation. © 2023 The Royal Society of Chemistry.

Original language	English
Pages (from-to)	3818-3834
Journal	RSC Advances
Volume	13
Issue number	6
Online published	26 Jan 2023
DOIs	https://doi.org/10.1039/d2ra07946a
Publication status	Published - 2023

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@article{804eec9864d24077bc4061006c594075,

title = "Synergistic effect of modified pore and heterojunction of MOF-derived α-Fe2O3/ZnO for superior photocatalytic degradation of methylene blue",

abstract = "Mesoporous heterojunction MOF-derived α-Fe2O3/ZnO composites were prepared by a simple calcination of α-Fe2O3/ZIF-8 as a sacrificial template. The optical properties confirm that coupling of both the modified pore and the n-n heterojunction effectively reduces the possibility of photoinduced charge carrier recombination under irradiation. The mesoporous Fe(25)ZnO with 25% loading of α-Fe2O3 exhibited the best performance in MB degradation, up to ∼100% after 150 minutes irradiation, higher than that of pristine ZnO and α-Fe2O3. Furthermore, after three cycles reusability, mesoporous Fe(25)ZnO still showed an excellent stability performance of up to 95.42% for degradation of MB. The proposed photocatalytic mechanism of mesoporous Fe(25)ZnO for the degradation of MB corresponds to the n-n heterojunction system. This study provides a valuable reference for preparing mesoporous MOF-derived metal oxides with an n-n heterojunction system to enhance MB photodegradation. {\textcopyright} 2023 The Royal Society of Chemistry.",

author = "Zulfa, {Liyana Labiba} and Ratna Ediati and Hidayat, {Alvin Romadhoni Putra} and Riki Subagyo and Nuhaa Faaizatunnisa and Yuly Kusumawati and Djoko Hartanto and Nurul Widiastuti and Utomo, {Wahyu Prasetyo} and Mardi Santoso",

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publisher = "Royal Society of Chemistry",

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Synergistic effect of modified pore and heterojunction of MOF-derived α-Fe₂O₃/ZnO for superior photocatalytic degradation of methylene blue. / Zulfa, Liyana Labiba; Ediati, Ratna; Hidayat, Alvin Romadhoni Putra et al.
In: RSC Advances, Vol. 13, No. 6, 2023, p. 3818-3834.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Synergistic effect of modified pore and heterojunction of MOF-derived α-Fe2O3/ZnO for superior photocatalytic degradation of methylene blue

AU - Zulfa, Liyana Labiba

AU - Ediati, Ratna

AU - Hidayat, Alvin Romadhoni Putra

AU - Subagyo, Riki

AU - Faaizatunnisa, Nuhaa

AU - Kusumawati, Yuly

AU - Hartanto, Djoko

AU - Widiastuti, Nurul

AU - Utomo, Wahyu Prasetyo

AU - Santoso, Mardi

PY - 2023

Y1 - 2023

N2 - Mesoporous heterojunction MOF-derived α-Fe2O3/ZnO composites were prepared by a simple calcination of α-Fe2O3/ZIF-8 as a sacrificial template. The optical properties confirm that coupling of both the modified pore and the n-n heterojunction effectively reduces the possibility of photoinduced charge carrier recombination under irradiation. The mesoporous Fe(25)ZnO with 25% loading of α-Fe2O3 exhibited the best performance in MB degradation, up to ∼100% after 150 minutes irradiation, higher than that of pristine ZnO and α-Fe2O3. Furthermore, after three cycles reusability, mesoporous Fe(25)ZnO still showed an excellent stability performance of up to 95.42% for degradation of MB. The proposed photocatalytic mechanism of mesoporous Fe(25)ZnO for the degradation of MB corresponds to the n-n heterojunction system. This study provides a valuable reference for preparing mesoporous MOF-derived metal oxides with an n-n heterojunction system to enhance MB photodegradation. © 2023 The Royal Society of Chemistry.

AB - Mesoporous heterojunction MOF-derived α-Fe2O3/ZnO composites were prepared by a simple calcination of α-Fe2O3/ZIF-8 as a sacrificial template. The optical properties confirm that coupling of both the modified pore and the n-n heterojunction effectively reduces the possibility of photoinduced charge carrier recombination under irradiation. The mesoporous Fe(25)ZnO with 25% loading of α-Fe2O3 exhibited the best performance in MB degradation, up to ∼100% after 150 minutes irradiation, higher than that of pristine ZnO and α-Fe2O3. Furthermore, after three cycles reusability, mesoporous Fe(25)ZnO still showed an excellent stability performance of up to 95.42% for degradation of MB. The proposed photocatalytic mechanism of mesoporous Fe(25)ZnO for the degradation of MB corresponds to the n-n heterojunction system. This study provides a valuable reference for preparing mesoporous MOF-derived metal oxides with an n-n heterojunction system to enhance MB photodegradation. © 2023 The Royal Society of Chemistry.

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