Preparation and properties of mixed metal oxides based layered double hydroxide as anode materials for dye-sensitized solar cell

Zhang, Liangji; Liu, Jianqiang; Xiao, Hongdi; Liu, Dehe; Qin, Yaowei; Wu, Houzheng; Li, Haiping; Du, Na; Hou, Wanguo

doi:10.1016/j.cej.2014.03.098

Cited by 62 publications

(34 citation statements)

References 30 publications

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“…Both curves showed a slight change in weight in an increase of temperature, and the chemisorbed water yielded weight loss below 200 °C. Similar results were observed in meso‐Fe 2 O 3 /TiO 2 and ZnAl‐LDH . The similarity of thermogram of RB5‐Al 2 O 3 @TiO 2 with that of Al 2 O 3 @TiO 2 suggested that RB5 dyes adsorbed on Al 2 O 3 @TiO 2 have broken down.…”

Section: Resultssupporting

confidence: 76%

Decolorization of Reactive Black 5 by Mesoporous Al₂O₃@TiO₂ Nanocomposites

Deng

Zhang

Cao

et al. 2018

Env Prog and Sustain Energy

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In this study, mesoporous Al2O3@TiO2 nanocomposites were synthesized via two successive precipitation methods. Due to the coated TiO2 layer, the Al2O3@TiO2 exhibited a significantly enhanced efficiency for the removal of reactive black 5 dye (RB5). The morphology and compositional characteristics of Al2O3@TiO2 were investigated by TEM, HRTEM, XRD, EDS, FTIR, BET, and zeta‐potential analysis. TEM photos illustrated that TiO2 film covered Al2O3, XRD suggested compositional phases of γ‐Al2O3 and anatase TiO2, and BET measurement confirmed its characteristic of the mesoporous material. Al2O3@TiO2 was applied as an adsorbent to remove RB5 from aqueous solution, and the adsorption isotherms fitted well to the Langmuir isotherm model. The photocatalysis experiments confirmed that Al2O3@TiO2 had the good photocatalytic performance for degrading RB5 and the hydroxyl radical was the major active group. The UV–Vis adsorbance spectra demonstrated that this Al2O3@TiO2 could incompletely degrade RB5 dye under natural indoor light simultaneously when adsorption occurred. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S230–S242, 2019

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Section: Resultssupporting

confidence: 76%

Decolorization of Reactive Black 5 by Mesoporous Al₂O₃@TiO₂ Nanocomposites

Deng

Zhang

Cao

et al. 2018

Env Prog and Sustain Energy

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“…The TiO 2 used for comparative purposes consisted of 89 vol% anatase and 11 vol% rutile. Anatase is an indirect bandgap semiconductor and rutile a direct bandgap semiconductor [ 24 , 39 ]. The combination of these two leads to a lowering in the bandgap of the overall material [ 40 ].…”

Section: Resultsmentioning

confidence: 99%

“…Results obtained using liquid electrolytes and containing LDH-MMOs/LDOs as electron conducting materials have shown efficiencies of up to 5.68% (TiO 2 @NiAl-LDO) [ 23 ]. Most frequently however, reported results achieve up to 1% efficiency or less, even with changing frequently studied parameters, such as the influence of calcination temperature [ 24 , 25 ] and different dyes [ 26 ]. The higher efficiencies reported include the use of a ZnSn-MMO sensitized with D205 (1.28% efficiency) [ 25 ], ZnTi-MMO sensitized with C101 (1.57% efficiency) [ 26 ] and Zn 73 Al 27 O sensitized with N719 (1.02% efficiency) [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Photoactive Transition-Metal Layered Double Hydroxides (LDH) to Replace Dye-Sensitized Materials in Solar Cells

et al. 2020

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This work highlights the use of Fe-modified MgAl-layered double hydroxides (LDHs) to replace dye and semiconductor complexes in dye-sensitized solar cells (DSSCs), forming a layered double hydroxide solar cell (LDHSC). For this purpose, a MgAl-LDH and a Fe-modified MgAl LDH were prepared. X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectroscopy were used to analyze the structural properties, morphology, and success of the Fe-modification of the synthesized LDHs. Ultraviolet-visible (UV-Vis) absorption spectroscopy was used to analyze the photoactive behavior of these LDHs and compare it to that of TiO2 and dye-sensitized TiO2. Current-voltage (I–V) solar simulation was used to determine the fill factor (FF), open circuit voltage (VOC), short circuit current (ISC), and efficiency of the LDHSCs. It was shown that the MgFeAl-LDH can act as a simultaneous photoabsorber and charge separator, effectively replacing the dye and semiconductor complex in DSSCs and yielding an efficiency of 1.56%.

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“…The MMO has gathered interests as a capable photo catalyst for the conversion of solar energy and it additionally demonstrates the applications used in lithium batteries because of its specific surface area is high. Using conventional synthesising procedure for the production of LDHs, finely distributed metal oxides can be achieved from the LDH using calcination due to the constant dispersion of cations into layers of LDH [22]. The Mixed metal oxides is deliberated as a good material used for electrode to assemble the dye-sensitized solar cell (DSSC) since it is having same photoresponse, injection efficacy and band gap energy of TiO 2 and ZnO.…”

Section: Use Of Ldh As a Photoanode In Dye Sensitized Solar Cellmentioning

confidence: 99%

Synthesising methods of layered double hydroxides and its use in the fabrication of dye Sensitised solar cell (DSSC): A short review

George

Saravanakumar

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The layered double hydroxides (LDH) which are anionic clay substances comprising of stacked cationic layers and interlayer anions. The cationic sheets contain octahedral structure consisting the divalent and trivalent ions in the center and hydroxyl bunches in the corners, gathered by three bonding with the neighbouring octahedra on every side of the layer. The ratio between the quantity of cations and OH − ions is 2:1, so a positive charge shows up on the layer because of the presence of trivalent cations. The interlayer space gives the compensation anions and water molecules, assuring a balanced out layered structure. The LDH materials were successfully synthesised from magnesium, aluminium, zinc and chromium chloride salts utilizing the co-precipitation technique. A Zn-Al LDH was researched as a potential sorbent material. This article reviews the recent advances in the preparation and intercalation of layered double hydroxides and its application in the fabrication of Dye Sensitized Solar Cell (DSSC).

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Preparation and properties of mixed metal oxides based layered double hydroxide as anode materials for dye-sensitized solar cell

Cited by 62 publications

References 30 publications

Decolorization of Reactive Black 5 by Mesoporous Al₂O₃@TiO₂ Nanocomposites

Decolorization of Reactive Black 5 by Mesoporous Al₂O₃@TiO₂ Nanocomposites

Preparation of Photoactive Transition-Metal Layered Double Hydroxides (LDH) to Replace Dye-Sensitized Materials in Solar Cells

Synthesising methods of layered double hydroxides and its use in the fabrication of dye Sensitised solar cell (DSSC): A short review

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Preparation and properties of mixed metal oxides based layered double hydroxide as anode materials for dye-sensitized solar cell

Cited by 62 publications

References 30 publications

Decolorization of Reactive Black 5 by Mesoporous Al2O3@TiO2 Nanocomposites

Decolorization of Reactive Black 5 by Mesoporous Al2O3@TiO2 Nanocomposites

Preparation of Photoactive Transition-Metal Layered Double Hydroxides (LDH) to Replace Dye-Sensitized Materials in Solar Cells

Synthesising methods of layered double hydroxides and its use in the fabrication of dye Sensitised solar cell (DSSC): A short review

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Decolorization of Reactive Black 5 by Mesoporous Al₂O₃@TiO₂ Nanocomposites

Decolorization of Reactive Black 5 by Mesoporous Al₂O₃@TiO₂ Nanocomposites