Recent progress in the development of carbonate-intercalated Zn/Cr LDH as a novel photocatalyst for hydrogen evolution aimed at the utilization of solar light
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Parida, Kulamani
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CSIR, Inst Minerals & Mat Technol, Colloids & Mat Chem Dept, Bhubaneswar 751013, Orissa, IndiaCSIR, Inst Minerals & Mat Technol, Colloids & Mat Chem Dept, Bhubaneswar 751013, Orissa, India
Parida, Kulamani
[1
]
Mohapatra, Lagnamayee
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CSIR, Inst Minerals & Mat Technol, Colloids & Mat Chem Dept, Bhubaneswar 751013, Orissa, IndiaCSIR, Inst Minerals & Mat Technol, Colloids & Mat Chem Dept, Bhubaneswar 751013, Orissa, India
Mohapatra, Lagnamayee
[1
]
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[1] CSIR, Inst Minerals & Mat Technol, Colloids & Mat Chem Dept, Bhubaneswar 751013, Orissa, India
A series of novel photocatalysts Zn/Cr LDH with different Zn/Cr molar ratios (2 : 1, 3 : 1, 4 : 1 and 2 : 1-CO3) were fabricated by a co-precipitation method and evaluated for photodecomposition of water using visible light irradiation. Various characterization methods were employed to investigate the structures, morphologies and photocatalytic properties. In comparison to Zn/Cr (2 : 1) LDH, Zn/Cr-CO3 (2 : 1) LDH extends the absorption edges to the visible region and exhibits good photocatalytic activity, even without the assistance of co-catalysts. The visible light photocatalytic activity is ascribed to the charge transfer spectra of octahedral Cr ions in LDH. Zn/Cr-CO3 LDH shows enhanced photocatalytic activities compared to Zn/Cr LDH as carbonate ions oxidise by holes to form carbonate radicals, inhibit the rapid recombination of e(-)and h(+) charge carriers and thereby suppress the backward reaction to some extent. This work provides a detailed understanding of the semiconductor properties of LDHs for photocatalytical hydrogen evolution.
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Alexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, RomaniaAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
Dvininov, E.
;
Ignat, M.
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Alexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, RomaniaAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
Ignat, M.
;
Barvinschi, P.
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W Univ Timisoara, Fac Phys, Timisoara 300223, RomaniaAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
Barvinschi, P.
;
Smithers, M. A.
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Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, NetherlandsAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
Smithers, M. A.
;
Popovici, E.
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Alexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, RomaniaAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
机构:
Alexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, RomaniaAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
Dvininov, E.
;
Ignat, M.
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Alexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, RomaniaAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
Ignat, M.
;
Barvinschi, P.
论文数: 0引用数: 0
h-index: 0
机构:
W Univ Timisoara, Fac Phys, Timisoara 300223, RomaniaAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
Barvinschi, P.
;
Smithers, M. A.
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h-index: 0
机构:
Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, NetherlandsAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania
Smithers, M. A.
;
Popovici, E.
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Alexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, RomaniaAlexandru Ioan Cuza Univ, Dept Phys & Theoret Chem & Mat Chem, Iasi 700506, Romania