Heterogeneous Fenton reaction is an attractive method for degradation of organic pollutants due to its high efficiency and non-selectivity and it also causes no secondary pollution. However low degradation rate and poor recyclability of the catalysts limit its applications for water purification. To overcome this herein copper ferrite/reduced graphene oxide (CF/rGO) aerogel was prepared by a one-step hydrothermal method as a highly efficient catalyst for the microwave-assisted Fenton reaction (MAFR). Under optimal conditions (500 W of microwave power 600 mu L of H2O2 15 mg of catalyst and 30 mg/L of RhB) the degradation efficiency of CF/rGO aerogel at 1.0 min (95.7%) was higher than that of reference samples at 3.0 min. Thermodynamical study showed the activation energy enthalpy change entropy change and Gibbs free energy change were 0.73 kJ/mol -49.5 kJ/mol -0.135 kJ/mol K and -6.8 kJ/mol respectively indicating that MAFR was an endothermic and non-spontaneous process.Radical trapping experiments showed that OH O-2(-) and h(+) played a combined role in RhB degradation. Besides high catalytic activity CF/rGO aerogel also displayed good reusability showing removal efficiency of 87.4% after 5 cycles. The high efficiency good reusability and simple process make CF/rGO aerogel a promising catalyst for wastewater treatment.
机构:
Cent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Muthukumar, Krishnan
;
Lakshmi, D. Shanthana
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Cent Salt & Marine Chem Res Inst, CSIR, Reverse Osmosis Div, GB Marg, Bhavnagar 364002, Gujarat, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Lakshmi, D. Shanthana
;
Acharya, Saranya D.
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Cent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Acharya, Saranya D.
;
Natarajan, S.
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VIT Univ, Ctr Nanobiotechnol, Vellore 632014, Tamil Nadu, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Natarajan, S.
;
Mukherjee, Amitava
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VIT Univ, Ctr Nanobiotechnol, Vellore 632014, Tamil Nadu, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Mukherjee, Amitava
;
Bajaj, H. C.
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Cent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
机构:
Prince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, ThailandPrince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand
Phuruangrat, Anukorn
;
Kuntalue, Budsabong
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Chiang Mai Univ, Fac Sci, Electron Microscopy Res & Serv Ctr, Chiang Mai 50200, ThailandPrince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand
Kuntalue, Budsabong
;
Thongtem, Somchai
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Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai 50200, ThailandPrince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand
机构:
Cent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Muthukumar, Krishnan
;
Lakshmi, D. Shanthana
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Cent Salt & Marine Chem Res Inst, CSIR, Reverse Osmosis Div, GB Marg, Bhavnagar 364002, Gujarat, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Lakshmi, D. Shanthana
;
Acharya, Saranya D.
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Cent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Acharya, Saranya D.
;
Natarajan, S.
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h-index: 0
机构:
VIT Univ, Ctr Nanobiotechnol, Vellore 632014, Tamil Nadu, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Natarajan, S.
;
Mukherjee, Amitava
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VIT Univ, Ctr Nanobiotechnol, Vellore 632014, Tamil Nadu, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
Mukherjee, Amitava
;
Bajaj, H. C.
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h-index: 0
机构:
Cent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, IndiaCent Salt & Marine Chem Res Inst, CSIR, Inorgan Mat & Catalysis Div, GB Marg, Bhavnagar 364002, Gujarat, India
机构:
Prince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, ThailandPrince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand
Phuruangrat, Anukorn
;
Kuntalue, Budsabong
论文数: 0引用数: 0
h-index: 0
机构:
Chiang Mai Univ, Fac Sci, Electron Microscopy Res & Serv Ctr, Chiang Mai 50200, ThailandPrince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand
Kuntalue, Budsabong
;
Thongtem, Somchai
论文数: 0引用数: 0
h-index: 0
机构:
Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai 50200, ThailandPrince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand