An ethylene glycol intercalated monometallic layered double hydroxide based on iron as an efficient bifunctional catalyst

2016 ◽  
Vol 45 (43) ◽  
pp. 17508-17520 ◽  
Author(s):  
Rajamani Nagarajan ◽  
Pankaj Gupta ◽  
Poonam Singh ◽  
Pinki Chakraborty
Keyword(s):  
Ethylene Glycol ◽  
Surface Area ◽  
Layered Double Hydroxide ◽  
Bifunctional Catalyst ◽  
Organic Substrates ◽  
Double Hydroxide ◽  
Enhanced Surface

An enhanced surface area by virtue of intercalating ethylene glycol in monometallic LDH based on iron has been demonstrated to catalyze efficiently the oxidation and reduction of industrially important organic substrates.

scholarly journals A new biocompatible ternary Layered Double Hydroxide Adsorbent for ultrafast removal of anionic organic dyes

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Garima Rathee ◽  
Amardeep Awasthi ◽  
Damini Sood ◽  
Ravi Tomar ◽  
Vartika Tomar ◽  
...  
Keyword(s):  
Waste Water ◽  
Methyl Orange ◽  
Surface Area ◽  
Layered Double Hydroxide ◽  
Removal Efficiency ◽  
Organic Dyes ◽  
High Surface ◽  
High Surface Area ◽  
Morphological Studies ◽  
Double Hydroxide

Abstract It would be of great significance to introduce a new biocompatible Layered Double Hydroxide (LDH) for the efficient remediation of wastewater. Herein, we designed a facile, biocompatible and environmental friendly layered double hydroxide (LDH) of NiFeTi for the very first time by the hydrothermal route. The materialization of NiFeTi LDH was confirmed by FTIR, XRD and Raman studies. BET results revealed the high surface area (106 m2/g) and the morphological studies (FESEM and TEM) portrayed the sheets-like structure of NiFeTi nanoparticles. The material so obtained was employed as an efficient adsorbent for the removal of organic dyes from synthetic waste water. The dye removal study showed >96% efficiency for the removal of methyl orange, congo red, methyl blue and orange G, which revealed the superiority of material for decontamination of waste water. The maximum removal (90%) of dyes was attained within 2 min of initiation of the adsorption process which supported the ultrafast removal efficiency. This ultrafast removal efficiency was attributed to high surface area and large concentration of -OH and CO32− groups present in NiFeTi LDH. In addition, the reusability was also performed up to three cycles with 96, 90 and 88% efficiency for methyl orange. Furthermore, the biocompatibility test on MHS cell lines were also carried which revealed the non-toxic nature of NiFeTi LDH at lower concentration (100% cell viability at 15.6 μg/ml). Overall, we offer a facile surfactant free method for the synthesis of NiFeTi LDH which is efficient for decontamination of anionic dyes from water and also non-toxic.

Ultrathin CoFe-layered double hydroxide nanosheets embedded in high conductance Cu3N nanowire arrays with a 3D core–shell architecture for ultrahigh capacitance supercapacitors

2018 ◽  
Vol 6 (47) ◽  
pp. 24603-24613 ◽  
Author(s):  
Xing Zhou ◽  
Xiaohui Li ◽  
Dejian Chen ◽  
Danyang Zhao ◽  
Xintang Huang
Keyword(s):  
Energy Storage ◽  
Specific Surface ◽  
Surface Area ◽  
Layered Double Hydroxide ◽  
Electrode Material ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Promising Candidate ◽  
Double Hydroxide ◽  
High Conductance

Ultrathin layered double hydroxide (LDH) nanosheets are a promising candidate as the electrode material for energy storage due to the ultrafast mass diffusion and greater specific surface area.

scholarly journals Physicochemical Study of 3,4-Dichlorophenoxyacetic Acid Intercalated into Hydrotalcite-Like Compound by Ion Exchanged Method

2016 ◽  
Vol 846 ◽  
pp. 440-447
Author(s):  
Sheikh Ahmad Izaddin Sheikh Mohd Ghazali ◽  
Siti Halimah Sarijo ◽  
Mohd Zobir Hussein
Keyword(s):  
Surface Area ◽  
Anion Exchange ◽  
Layered Double Hydroxide ◽  
Nitrogen Adsorption ◽  
Basal Spacing ◽  
Dichlorophenoxyacetic Acid ◽  
Exchange Method ◽  
Type Iv ◽  
Double Hydroxide ◽  
Adsorption Desorption

The intercalation of herbicide, 3,4-dicholorophenoxyacetic acid (3,4D), into zinc-aluminium-layered double hydroxide (LDH) for the formation of a new nanocomposite ZADX, was accomplished via anion exchange method. Due to the intercalation of 3,4D with LDH interlayer domain, basal spacing expanded from 8.9Å in the ZAL to 17.7-19.0 Å in the ZADX. The percentage loading of 3,4D in the ZADX is 51.4 % (w/w). The FTIR spectra of the nanocomposite shows resemblance peaks of the 3,4D and Zn-Al-layered double hydroxide indicating the inclusion of 3,4D into the layered double hydroxide. Surface area of the resulting nanocomposite increased from 1.3 to 7.14 m2g-1 with the nitrogen adsorption-desorption of type IV.

Covalent Grafting of Ethylene Glycol into the Zn–Al–CO3 Layered Double Hydroxide

2000 ◽  
Vol 227 (2) ◽  
pp. 445-451 ◽  
Author(s):  
José Luis Guimarães ◽  
Rafael Marangoni ◽  
Luiz Pereira Ramos ◽  
Fernando Wypych
Keyword(s):  
Ethylene Glycol ◽  
Layered Double Hydroxide ◽  
Covalent Grafting ◽  
Double Hydroxide
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