Self-assembly of layered double hydroxide 2D nanoplates with graphene nanosheets: an effective way to improve the photocatalytic activity of 2D nanostructured materials for visible light-induced O2 generation

2013 ◽  
Vol 6 (3) ◽  
pp. 1008 ◽  
Author(s):  
Jayavant L. Gunjakar ◽  
In Young Kim ◽  
Jang Mee Lee ◽  
Nam-Suk Lee ◽  
Seong-Ju Hwang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Nanostructured Materials ◽  
Layered Double Hydroxide ◽  
Self Assembly ◽  
Graphene Nanosheets ◽  
Double Hydroxide

Surface Modification of Synthesized Layered Double Hydroxide [LDH] for Methylene Blue Dye Removal in Textile Industry via Photocatalytic Activity under Visible Light

2017 ◽  
Vol 46 ◽  
pp. 135-147 ◽  
Author(s):  
K. Gohatre Omdeo ◽  
Vasudeo Rane Ajay ◽  
Kanny Krishnan ◽  
V.K. Abitha ◽  
Nikesh Samarth ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Layered Double Hydroxide ◽  
Layered Compounds ◽  
Layered Compound ◽  
Ammonium Bromide ◽  
X Ray ◽  
Surface Modified ◽  
Double Hydroxide

Layered double hydroxides (abbreviated as LDHs) are one of the nanoordered layered compounds. The importance of layered compound is based on their ability to retain chemical species with electrical charges compatible to those of the layers. In this study we have reported the synthesis of nanosized layered double hydroxide (LDH) by co-precipitation method using two different surfactants as cetyl trimethyl ammonium bromide (CTAB) and octadecyl trimethyl ammonium bromide (ODTMA) having different critical micelle concentration (CMC) /chain length and its comparative results on calcined surface modified LDH (CS-LDH). The structure of surface modified layered double hydroxide (CS-LDH) synthesized is unique and has important advantages to the photocatalytic activity. LDH has significant number of application due to their structural, chemical properties etc., these compounds can be used as catalyst, adsorbents, anion exchanger. The photocatalytic activity of prepared surface modified CS-LDH was tested on degradation of the methylene blue (MB) dye in an aqueous solution. The surface characteristics of LDH and CS-LDH were examined using Energy Dispersive X-ray (EDX), Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and UV-Visible spectrophotometer for Photocatalytic activity under visible light using MB dye. It was observed that highly exfoliated and basal spacing in CS-LDH-ODTMA which enhanced photocatalytic activity (Approx. 60% degradation) than that of comparison to CS-LDH-CTAB (Approx. 32% degradation).

Synthesis, characterization and enhanced visible light photocatalytic activity of Bi2MoO6/Zn–Al layered double hydroxide hierarchical heterostructures

2014 ◽  
Vol 4 (4) ◽  
pp. 1028-1037 ◽  
Author(s):  
Haiping Li ◽  
Quanhua Deng ◽  
Jingyi Liu ◽  
Wanguo Hou ◽  
Na Du ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Layered Double Hydroxide ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Visible Light Photocatalytic Activity ◽  
Photodegradation Efficiency ◽  
Double Hydroxide ◽  
Visible Light Photocatalytic

A Bi2MoO6/Zn–Al LDH heterostructure exhibits significantly enhanced photodegradation efficiency for RhB relative to Bi2MoO6 under visible light irradiation.

Novel S-scheme RP/NiCo-LDH composite with remarkably enhanced photocatalytic activity for H2 evolution under visible light

2021 ◽  
Author(s):  
Linying Hu ◽  
Jing Xu ◽  
Yin Liu ◽  
Sheng Zhao
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Layered Double Hydroxide ◽  
Photocatalytic Performance ◽  
Red Phosphorus ◽  
H2 Evolution ◽  
Nickel Cobalt ◽  
Double Hydroxide

A novel red phosphorus/nickel cobalt layered double hydroxide (RP/NiCo-LDH) heterojunction was successfully prepared, and exhibited excellent photocatalytic performance for hydrogen evolution. The formation of S-scheme between purified RP and NiCo-LDH...

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