Heterogeneous Fenton-like degradation of methyl blue using MCM-41-Fe/Al supported Mn oxides

Xurong Wang; Wenzhong Yang; Yan Ji; Xiaoshuang Yin; Yin Liu; Xuezhong Liu; Fengyou Zhang; Baohong Chen; Na Yang

doi:10.1039/c6ra04709b

Heterogeneous Fenton-like degradation of methyl blue using MCM-41-Fe/Al supported Mn oxides

Xurong Wang, Wenzhong Yang, Yan Ji, Xiaoshuang Yin, Yin Liu, Xuezhong Liu, Fengyou Zhang, Baohong Chen, Na Yang

School of Chemistry and Moleculai Engineering

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Conventional heterogeneous catalysts often suffer from the constraints of high Fe³⁺ leaching concentrations and an amorphous appearance, which can affect the stability of the catalysts. We prepared uniform and spherical M-Fe/Al at room temperature. Furthermore, this material was supported with Mn oxides by an impregnation method to accelerate the degradation process of methyl blue. XRD, TEM, BET, and zeta potential measurements were employed to characterize the catalyst. In our work, M-Fe/Al-Mn showed a better methyl blue degradation efficiency than M-Fe/Al in the presence of H₂O₂. 93.3% discoloration was achieved by using M-Fe/Al-Mn within 200 min at 313 K. This catalyst performed better than M-Fe/Al. This could mainly be attributed to the increased adsorption effect of the Mn oxides. Furthermore, M-Fe/Al-Mn also showed good recyclability and stability over 5 cycles. Moreover, the Fe³⁺ leaching concentration was negligible (below 0.5 mg L^-1) in our work.

Original language	English
Pages (from-to)	26155-26162
Number of pages	8
Journal	RSC Advances
Volume	6
Issue number	31
DOIs	https://doi.org/10.1039/c6ra04709b
State	Published - 2016

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title = "Heterogeneous Fenton-like degradation of methyl blue using MCM-41-Fe/Al supported Mn oxides",

abstract = "Conventional heterogeneous catalysts often suffer from the constraints of high Fe3+ leaching concentrations and an amorphous appearance, which can affect the stability of the catalysts. We prepared uniform and spherical M-Fe/Al at room temperature. Furthermore, this material was supported with Mn oxides by an impregnation method to accelerate the degradation process of methyl blue. XRD, TEM, BET, and zeta potential measurements were employed to characterize the catalyst. In our work, M-Fe/Al-Mn showed a better methyl blue degradation efficiency than M-Fe/Al in the presence of H2O2. 93.3% discoloration was achieved by using M-Fe/Al-Mn within 200 min at 313 K. This catalyst performed better than M-Fe/Al. This could mainly be attributed to the increased adsorption effect of the Mn oxides. Furthermore, M-Fe/Al-Mn also showed good recyclability and stability over 5 cycles. Moreover, the Fe3+ leaching concentration was negligible (below 0.5 mg L-1) in our work.",

author = "Xurong Wang and Wenzhong Yang and Yan Ji and Xiaoshuang Yin and Yin Liu and Xuezhong Liu and Fengyou Zhang and Baohong Chen and Na Yang",

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year = "2016",

doi = "10.1039/c6ra04709b",

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T1 - Heterogeneous Fenton-like degradation of methyl blue using MCM-41-Fe/Al supported Mn oxides

AU - Wang, Xurong

AU - Yang, Wenzhong

AU - Ji, Yan

AU - Yin, Xiaoshuang

AU - Liu, Yin

AU - Liu, Xuezhong

AU - Zhang, Fengyou

AU - Chen, Baohong

AU - Yang, Na

PY - 2016

Y1 - 2016

N2 - Conventional heterogeneous catalysts often suffer from the constraints of high Fe3+ leaching concentrations and an amorphous appearance, which can affect the stability of the catalysts. We prepared uniform and spherical M-Fe/Al at room temperature. Furthermore, this material was supported with Mn oxides by an impregnation method to accelerate the degradation process of methyl blue. XRD, TEM, BET, and zeta potential measurements were employed to characterize the catalyst. In our work, M-Fe/Al-Mn showed a better methyl blue degradation efficiency than M-Fe/Al in the presence of H2O2. 93.3% discoloration was achieved by using M-Fe/Al-Mn within 200 min at 313 K. This catalyst performed better than M-Fe/Al. This could mainly be attributed to the increased adsorption effect of the Mn oxides. Furthermore, M-Fe/Al-Mn also showed good recyclability and stability over 5 cycles. Moreover, the Fe3+ leaching concentration was negligible (below 0.5 mg L-1) in our work.

AB - Conventional heterogeneous catalysts often suffer from the constraints of high Fe3+ leaching concentrations and an amorphous appearance, which can affect the stability of the catalysts. We prepared uniform and spherical M-Fe/Al at room temperature. Furthermore, this material was supported with Mn oxides by an impregnation method to accelerate the degradation process of methyl blue. XRD, TEM, BET, and zeta potential measurements were employed to characterize the catalyst. In our work, M-Fe/Al-Mn showed a better methyl blue degradation efficiency than M-Fe/Al in the presence of H2O2. 93.3% discoloration was achieved by using M-Fe/Al-Mn within 200 min at 313 K. This catalyst performed better than M-Fe/Al. This could mainly be attributed to the increased adsorption effect of the Mn oxides. Furthermore, M-Fe/Al-Mn also showed good recyclability and stability over 5 cycles. Moreover, the Fe3+ leaching concentration was negligible (below 0.5 mg L-1) in our work.

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U2 - 10.1039/c6ra04709b

DO - 10.1039/c6ra04709b

M3 - 文章

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SN - 2046-2069

VL - 6

SP - 26155

EP - 26162

JO - RSC Advances

JF - RSC Advances

IS - 31

ER -

Heterogeneous Fenton-like degradation of methyl blue using MCM-41-Fe/Al supported Mn oxides

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