Hierarchically porous NiAl-LDH nanoparticles as highly efficient adsorbent for p-nitrophenol from water

Sun, Yayue; Zhou, Jiabin; Cai, Weiquan; Zhao, Ru-Song; Jinpeng, Yuan

doi:10.1016/j.apsusc.2015.05.041

Cited by 110 publications

(45 citation statements)

References 52 publications

(54 reference statements)

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“…For LDH sample, the presence of intense symmetric ( 003 , 006 , 009 ) reflection peaks at 11.11°, 22.73°, 34.92° well‐indexed to ( 003 ), ( 006 ), ( 009 ) planes, showing an obvious crystallized layered structure with a basal spacing of 0.75 nm. This value is in accordance to that of NO 3 − ‐containing NiAl LDH reported by Sun et al., . In the case of nZVI@NiAl LDH nanocomposites, the XRD pattern also showed a layered structure with the preservation of the LDH typical reflection ( 003) , but there is a clear trend towards the broadening of the peaks took place.…”

Section: Resultsmentioning

confidence: 99%

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

et al. 2020

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Nanocomposite of nanoscale zero‐valent iron (nZVI) and layered double hydroxide (LDH) was used as modifier for boron‐doped diamond electrode in determination of anti‐psychotic drug chlorpromazine (CPZ). nZVI nanoparticles were prepared by liquid phase reduction of ferric chloride with sodium borohydride on the surface of NiAl LDH matrix owing to the strong exchange and confinement efficiency of LDH. The structure, binding and surface properties of the nZVI@LDH nanocomposite were monitored using powder X‐ray diffractometry, FT‐IR spectroscopy, scanning and transmission microscopy and BET techniques. The electrochemical properties of the modified electrode were investigated by CV and EIS, performed in a phosphate buffer containing ferro/ferricyanide as redox probe. The modified electrode exhibited excellent electrochemical performance compared with unmodified electrode. As regard potential application of the nanocomposite surface to the CPZ detection, square‐wave voltammetric signals showed a good linear correlation over CPZ concentrations in a broad range from 0.1 to 8.0 μM with low detection limit of 0.005 μM. Nevertheless, these results suggest that the proposed nanocomposite modifier surface provides exceptional synergy and significant enhancement effect to the voltammetric response of CPZ and thus could be applied as highly efficient and stable platform of sensors in clinical analysis.

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Section: Resultsmentioning

confidence: 99%

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

et al. 2020

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“…Recently, several LDHs and its hybrids have been explored for the removal of phenols from water bodies. For instance, porous NiAl-LDH nanoparticle-modified sodium citrate showed adsorption of p-nitrophenol, with an adsorption capacity 77.7 mg/g [20]. F. T Zompantzi et al [21] reported 95% phenol degradation using ZnAl metal oxides.…”

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confidence: 99%

Sewage Sludge ZnCl2-Activated Carbon Intercalated MgFe–LDH Nanocomposites: Insight of the Sorption Mechanism of Improved Removal of Phenol from Water

Mu’azu

Zubair

Jarrah

et al. 2020

IJMS

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This work reports the synthesis of new layered double hydroxide (LDH) composites using sewage-based ZnCl2-activated carbon (AC) intercalated with MgFe (AC-MgFe-LDH) and an evaluation of their adsorptive performance for phenol removal from water. The effect of the AC loading on the final properties of synthesized composites was investigated via various characterization techniques. The results showed efficient decoration at 0.1–0.25 g AC loading within the layers of AC–MgFe composites LDH, which was reflected in the higher surface area (233.75 m2/g) and surface functionalities (OH, NO3, C-O-C, and MMO) yielding a significant improvement of the phenol removal efficiency. However, at higher contents, AC loading led to the breakage of the LDH structure and agglomeration, as indicated by the deterioration in the textural and structural properties. The isotherm and kinetic data were well fitted by the Langmuir and pseudo-second-order model, respectively, with a maximum obtained monolayer adsorption capacity of 138.69 mg/g. The thermodynamics results demonstrated that phenol adsorption is an endothermic process. The sorption mechanism of phenol molecules on the AC–MgFe composite was governed by chemical bonding with OH, C=O, and MMO groups and pore diffusion via π–π interactions. Superior phenol removal with excellent recyclability up to five cycles of the new AC–MgFe composite suggested its use as a potential adsorbent for effective phenol removal from water and wastewater streams.

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“…Here, the ultrathin α‐Co(OH) 2 nanosheets with a hydrotalcite‐like structure are positively charged and have many hydroxy groups and large specific surface areas. Therefore, the electronegative 4‐NP ions can be absorbed readily on the ultrathin α‐Co(OH) 2 nanosheets through electrostatic and hydrogen‐bonding interactions , . Therefore, we assume that the time needed for the BH 4 – ions to absorb and evolve to active H atoms on the surface of the catalyst is the key aspect of the induction period.…”

Section: Resultsmentioning

confidence: 99%

One‐Pot Synthesis of Cobalt‐Doped Pt–Au Alloy Nanoparticles Supported on Ultrathin α‐Co(OH)₂ Nanosheets and Their Enhanced Performance in the Reduction of p‐Nitrophenol

Liu

et al. 2016

Eur J Inorg Chem

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Cobalt‐doped Pt–Au alloy nanoparticles with a narrow size distribution and small sizes of ca. 4 nm were deposited on ultrathin α‐Co(OH)2 nanosheets through a one‐pot method. The whole process could be divided into two steps: coreduction by NaBH4 and subsequent partial oxidation by air. The compositions of the as‐prepared y‐PtxAu100–x/Co(OH)2 (x = 0, 25, 50, 75, 100, y = 1 %, 10 %) materials can be accurately controlled by adjusting the amounts of the raw materials. The structure of y‐PtxAu100–x/Co(OH)2 was affected by the doped cobalt. The effects of ultrathin α‐Co(OH)2 nanosheets and the chemical composition of PtxAu100–x NPs on the catalytic activity for the reduction of 4‐nitrophenol (4‐NP) were investigated systematically. 1 %‐Pt50Au50/Co(OH)2 exhibits the most significantly enhanced catalytic activity. Its much higher activity than those of 1 %‐Pt/Co(OH)2, 1 %‐Au/Co(OH)2, and a physical mixture of Pt50Au50 nanoparticles and ultrathin α‐Co(OH)2 nanosheets suggests that there is a synergy between the Pt and Au and between the PtxAu100–x nanoparticles and the supports.

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Hierarchically porous NiAl-LDH nanoparticles as highly efficient adsorbent for p-nitrophenol from water

Cited by 110 publications

References 52 publications

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

Sewage Sludge ZnCl2-Activated Carbon Intercalated MgFe–LDH Nanocomposites: Insight of the Sorption Mechanism of Improved Removal of Phenol from Water

One‐Pot Synthesis of Cobalt‐Doped Pt–Au Alloy Nanoparticles Supported on Ultrathin α‐Co(OH)₂ Nanosheets and Their Enhanced Performance in the Reduction of p‐Nitrophenol

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Hierarchically porous NiAl-LDH nanoparticles as highly efficient adsorbent for p-nitrophenol from water

Cited by 110 publications

References 52 publications

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

Sewage Sludge ZnCl2-Activated Carbon Intercalated MgFe–LDH Nanocomposites: Insight of the Sorption Mechanism of Improved Removal of Phenol from Water

One‐Pot Synthesis of Cobalt‐Doped Pt–Au Alloy Nanoparticles Supported on Ultrathin α‐Co(OH)2 Nanosheets and Their Enhanced Performance in the Reduction of p‐Nitrophenol

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One‐Pot Synthesis of Cobalt‐Doped Pt–Au Alloy Nanoparticles Supported on Ultrathin α‐Co(OH)₂ Nanosheets and Their Enhanced Performance in the Reduction of p‐Nitrophenol