TY - JOUR
T1 - Enhancement of photo-fenton-like degradation of orange II by MnO2/NiO nanocomposite with the synergistic effect from bisulfite
AU - Zhang, Xinyu
AU - Ma, Jianfeng
AU - Fan, Changhai
AU - Peng, Mingguo
AU - Komarneni, Sridhar
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant No. 21477009 ), Natural Science Foundation of Jiangsu Province ( SBK2016021419 ), “333 project” of Jiangsu Province and Open foundation of Key Laboratory of Mineralogy and Metallogeny , Chinese Academy of Sciences ( KLMM20150102 ). One of us (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566 .
PY - 2019/5/15
Y1 - 2019/5/15
N2 - To improve the efficiency of traditional advanced oxidation processes (AOPs), a novel photo-assisted heterogeneous Fenton-like process was proposed and verified by experiments. Under visible light, NaHSO3 and transition metal composite oxide MnO2/NiO were tested together for degradation of orange II (OII). MnO2/NiO nanocomposites were prepared by a hydrothermal method using different nickel oxide to manganese oxide ratios and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Ultraviolet–vis (UV–vis) diffuse reflectance spectroscopy (DRS) and scanning electron microscopy (SEM). The best MnO2/NiO nanocomposite (Ni:Mn = 1:2) which was designated as Ni-Mn-3 showed the best OII removal efficiency of about 92.8% among the various MnO2/NiO nanocomposites of different Ni:Mn ratios. Moreover, the best catalyst, Ni-Mn-3 also showed good stability and recovery performance for degrading OII. The degradation ability of Ni-Mn-3 decreased no more than 10% after three times of repeated tests, which makes it more competitive in practical industrial applications than other heterogeneous Fenton-like catalysts.
AB - To improve the efficiency of traditional advanced oxidation processes (AOPs), a novel photo-assisted heterogeneous Fenton-like process was proposed and verified by experiments. Under visible light, NaHSO3 and transition metal composite oxide MnO2/NiO were tested together for degradation of orange II (OII). MnO2/NiO nanocomposites were prepared by a hydrothermal method using different nickel oxide to manganese oxide ratios and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Ultraviolet–vis (UV–vis) diffuse reflectance spectroscopy (DRS) and scanning electron microscopy (SEM). The best MnO2/NiO nanocomposite (Ni:Mn = 1:2) which was designated as Ni-Mn-3 showed the best OII removal efficiency of about 92.8% among the various MnO2/NiO nanocomposites of different Ni:Mn ratios. Moreover, the best catalyst, Ni-Mn-3 also showed good stability and recovery performance for degrading OII. The degradation ability of Ni-Mn-3 decreased no more than 10% after three times of repeated tests, which makes it more competitive in practical industrial applications than other heterogeneous Fenton-like catalysts.
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U2 - 10.1016/j.jallcom.2019.01.197
DO - 10.1016/j.jallcom.2019.01.197
M3 - Article
AN - SCOPUS:85060287199
SN - 0925-8388
VL - 785
SP - 343
EP - 349
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -