Sand flower layered double hydroxides synthesized by co-precipitation for CO2 capture: Morphology evolution mechanism, agitation effect and stability

Zeng, Shibi; Xu, Xiaoli; Wang, Shangkun; Gong, Qiankun; Liu, Rujun; Yu, Ying

doi:10.1016/j.matchemphys.2013.03.015

Cited by 35 publications

(16 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1(a), the isotherm of PtIn/Mg(Al)O-1 is similar to that of Ca500-Pt/Al catalyst reported by Yu [43], presenting a very similar shape as c-Al 2 O 3 material. The hysteresis loop of PtIn/Mg (Al)O-2 can be classified as type H3 (according to IUPAC), the pores are correlated with slit-shaped pores due to the aggregation of flake-like particles [44]. Furthermore, type H2 hysteresis loop can be observed over PtIn/Mg(Al)O-6 and PtIn/Mg(Al)O-8 samples, which was often associated with complex and interconnected pore structure [45].…”

Section: Effect Of Mg/al Molar Ratio On Textural Properties Of Ptin/mmentioning

confidence: 99%

The influences of Mg/Al molar ratio on the properties of PtIn/Mg(Al)O- x catalysts for propane dehydrogenation reaction

Xia

Lang

et al. 2016

Chemical Engineering Journal

View full text Add to dashboard Cite

Section: Effect Of Mg/al Molar Ratio On Textural Properties Of Ptin/mmentioning

confidence: 99%

The influences of Mg/Al molar ratio on the properties of PtIn/Mg(Al)O- x catalysts for propane dehydrogenation reaction

Xia

Lang

et al. 2016

Chemical Engineering Journal

View full text Add to dashboard Cite

“…Based on a study conducted by Zeng et al (2013), LDHs with sand flower and dense layered morphologies may be prepared by the co-precipitation method at pH = 10 under different conditions with and without stirring. Without stirring, the nanoflakes were more likely to be deposited randomly.…”

Section: Resultsmentioning

confidence: 99%

“…Despite the wide availability of studies on the controllable preparation of LDHs, few reports have focused on the morphological effects induced by these compounds (Zeng et al, 2013). The experimental data reveal that sand flower nano-LDH is superior to nano-schistose LDH as a relatively safe drug carrier with improved biocompatibility and low toxicity.…”

Section: Discussionmentioning

confidence: 99%

“…Based on a study conducted by Zeng et al (2013), LDH nanocomposites with sand flower and dense layered morphologies were prepared by the co-precipitation method at pH = 10 under different conditions with stirring. The SEM images of the sand flower and schistose LDH nanocomposites were observed using a JSM-6700F microscope (Japan).…”

Section: Preparation Of Mg/al-ldhs and Characterizationmentioning

confidence: 99%

“…While a few reports focusing on morphological effects (Zeng et al, 2013) have been published, no resulting damage has yet been shown. Besides several other environmental or genetic factors, oxidative stress (OS) leading to free radical attack of neural cells contributes to neuro-degeneration (Del Hoyo, 2007).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparative study of oxidative stress induced by sand flower and schistose nanosized layered double hydroxides in N2a cells

Yan

et al. 2015

Front. Biol.

Self Cite

View full text Add to dashboard Cite

Magnesium-aluminum layered double hydroxide (Mg/Al-LDH) nanoparticles have strong potential application as drug delivery systems because of their low toxicity and suitable biocompatibility. However, few studies have described the morphological effects of these hydroxides on nerve cells. The present study compares the oxidative stress induced by different concentrations (i.e., 0, 50, 100, 200, 400, and 800 μg/mL) of sand flower and flake nano-Mg/ Al-LDHs in mouse neuroblastoma cells (N2a) when these cells were exposed for 24 and 48 h. Cell viability was detected by MTT assay, and production of reactive oxygen species (ROS), glutathione (GSH), and malondialdehyde (MDA) were monitored to evaluate oxidative damage. Results suggested that sand flower nano-LDHs, at the appropriate concentrations (less than 200 μg/mL), especially those of about 100-200 nm in size, induce no harmful effects on N2a cells.

show abstract

Adsorptive removal of fluoride using hierarchical flower‐like calcined Mg–Al layered double hydroxides

Wang

et al. 2016

Env Prog and Sustain Energy

View full text Add to dashboard Cite

Fluoride is the naturally occurring groundwater contaminant around the world, and has been the focus of extensive research efforts in the past few decades. Among various fluoride removal technologies, adsorption was the most attractive because it was highly efficient, cost‐effective, and suitable for small communities. A facile synthetic approach was presented for hierarchical flower‐like Mg–Al‐layered double hydroxides (MgAl‐LDO) via the simple hydrothermal method, followed by a subsequent calcination at 500°C for 4 h in air. The resulting calcined MgAl‐LDO were studied for their adsorption performance in removing fluoride from aqueous solutions. The results showed that the flower‐like sphere of hierarchical calcined MgAl‐LDO was synthesized by a simple hydrothermal method using urea as precipitating agent. Batch adsorption experiments demonstrated that the kinetic adsorption could be described by a pseudo‐second‐order model very well. The adsorption of fluoride on MgAl‐LDO was strongly dependent on pH value. The Freundlich model fitted the adsorption isotherms of fluoride better than the Langmuir model at three different temperatures of 25, 45, and 65°C. They were demonstrated to be reusable with the efficiency of fluoride removal up to 80% at the fourth cycle. we successfully fabricated flower‐like spherical structures MgAl‐LDO by a facile hydrothermal method without any templates. It was envisioned that the synthesized samples using this facile synthetic approach were very promising for the removal of fluoride from aqueous solutions. © 2016 American Institute of Chemical Engineers Environ Prog, 2016 © 2016 American Institute of Chemical Engineers Environ Prog, 35: 1420–1429, 2016

show abstract

Sand flower layered double hydroxides synthesized by co-precipitation for CO2 capture: Morphology evolution mechanism, agitation effect and stability

Cited by 35 publications

References 36 publications

The influences of Mg/Al molar ratio on the properties of PtIn/Mg(Al)O- x catalysts for propane dehydrogenation reaction

The influences of Mg/Al molar ratio on the properties of PtIn/Mg(Al)O- x catalysts for propane dehydrogenation reaction

Comparative study of oxidative stress induced by sand flower and schistose nanosized layered double hydroxides in N2a cells

Adsorptive removal of fluoride using hierarchical flower‐like calcined Mg–Al layered double hydroxides

Contact Info

Product

Resources

About