TY - JOUR
T1 - Self-assembled gels of Fe-chitosan/montmorillonite nanosheets
T2 - Dye degradation by the synergistic effect of adsorption and photo-Fenton reaction
AU - Zhao, Yunliang
AU - Kang, Shichang
AU - Qin, Lei
AU - Wang, Wei
AU - Zhang, Tingting
AU - Song, Shaoxian
AU - Komarneni, Sridhar
N1 - Funding Information:
The financial supports to this work from the National Natural Science Foundation of China under the projects No. 51874220 and 51674183 are gratefully acknowledged. This research is also supported by the financial supports for this work from Natural Science Foundation of Hubei Province of China (2018CFB468). Dr. Yunliang Zhao gratefully acknowledges financial support from China Scholarship Council (File No. 201806955006). One of us (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566.
Funding Information:
The financial supports to this work from the National Natural Science Foundation of China under the projects No. 51874220 and 51674183 are gratefully acknowledged. This research is also supported by the financial supports for this work from Natural Science Foundation of Hubei Province of China ( 2018CFB468 ). Dr. Yunliang Zhao gratefully acknowledges financial support from China Scholarship Council (File No. 201806955006 ). One of us (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Self-assembled gel of Fe-chitosan/montmorillonite nanosheets (Fe-CS/MMTNS) was prepared for elimination of methylene blue (MB) under visible light in the presence of H2O2. The Fe-CS/MMTNS gel was characterized by FTIR, SEM-EDS, XPS and TG. The Fe-CS/MMTNS gel performed well in the removal of MB through the synergistic effect of adsorption and photo-Fenton reaction. Moreover, this gel worked efficiently under a wide range of pH conditions. This composite gel also showed effective reusability because the adsorption sites of the Fe-CS/MMTNS are continually reactivated through photo-Fenton degradation. Additionally, the Fe-CS/MMTNS gel was found to be stable and the iron ions were hardly leached out because of the complexation between iron and chitosan (CS). The MB degradation occurred by two pathways: a part of MB was directly attacked by reactive radicals and gradually converted into inorganic substances while another part of MB was firstly adsorbed by Fe-CS/MMTNS gel and then degraded by reactive radicals.
AB - Self-assembled gel of Fe-chitosan/montmorillonite nanosheets (Fe-CS/MMTNS) was prepared for elimination of methylene blue (MB) under visible light in the presence of H2O2. The Fe-CS/MMTNS gel was characterized by FTIR, SEM-EDS, XPS and TG. The Fe-CS/MMTNS gel performed well in the removal of MB through the synergistic effect of adsorption and photo-Fenton reaction. Moreover, this gel worked efficiently under a wide range of pH conditions. This composite gel also showed effective reusability because the adsorption sites of the Fe-CS/MMTNS are continually reactivated through photo-Fenton degradation. Additionally, the Fe-CS/MMTNS gel was found to be stable and the iron ions were hardly leached out because of the complexation between iron and chitosan (CS). The MB degradation occurred by two pathways: a part of MB was directly attacked by reactive radicals and gradually converted into inorganic substances while another part of MB was firstly adsorbed by Fe-CS/MMTNS gel and then degraded by reactive radicals.
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U2 - 10.1016/j.cej.2019.122322
DO - 10.1016/j.cej.2019.122322
M3 - Article
AN - SCOPUS:85069695782
SN - 1385-8947
VL - 379
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 122322
ER -