High surface area mesoporous titanium–zirconium oxide nanofibrous web: a heavy metal ion adsorbent

2013 ◽  
Vol 1 (19) ◽  
pp. 5847 ◽  
Author(s):  
Jonghyun Choi ◽  
Andreas Ide ◽  
Yen B. Truong ◽  
Ilias L. Kyratzis ◽  
Rachel A. Caruso
Keyword(s):  
Heavy Metal ◽  
Surface Area ◽  
Zirconium Oxide ◽  
Metal Ion ◽  
High Surface ◽  
High Surface Area ◽  
Heavy Metal Ion ◽  
Titanium Zirconium

Adsorption of divalent heavy metal ion by mesoporous-high surface area chitosan/poly (ethylene oxide) nanofibrous membrane

2017 ◽  
Vol 157 ◽  
pp. 57-64 ◽  
Author(s):  
Md Islam Shariful ◽  
Sazzad Bin Sharif ◽  
Jacky Jia Li Lee ◽  
Umma Habiba ◽  
Bee Chin Ang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Ethylene Oxide ◽  
Surface Area ◽  
Metal Ion ◽  
High Surface ◽  
High Surface Area ◽  
Nanofibrous Membrane ◽  
Heavy Metal Ion ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

La activated high surface area titania float for the adsorption of Pb(ii) from aqueous media

2018 ◽  
Vol 42 (2) ◽  
pp. 1067-1077 ◽  
Author(s):  
Shwetharani R. ◽  
Poojashree A. ◽  
Geetha R. Balakrishna ◽  
Jyothi M. S.
Keyword(s):  
Heavy Metal ◽  
Particle Size ◽  
Surface Area ◽  
Metal Ion ◽  
High Surface ◽  
Aqueous Media ◽  
High Surface Area ◽  
Heavy Metal Ion ◽  
Enhanced Adsorption

Smaller particle size with higher surface area La-TiO2 fabricated float depicts enhanced adsorption of hazardous heavy metal ion Pb2+, present in the aqueous media and the float makes the process easy and reusable.

Sol–gel derived mesoporous GaAlPO4 glass for heavy metal ion sequestration

RSC Advances ◽  
2016 ◽  
Vol 6 (101) ◽  
pp. 99149-99157 ◽  
Author(s):  
Jin He ◽  
Pengfei Ma ◽  
Ge Zhang ◽  
Rihong Li ◽  
Long Zhang
Keyword(s):  
Heavy Metal ◽  
Metal Ion ◽  
High Surface ◽  
Sol Gel ◽  
High Surface Area ◽  
Chemical Diversity ◽  
Heavy Metal Ion ◽  
Practical Applications ◽  
Ion Sequestration ◽  
Adsorbent Materials

Mesoporous phosphate materials with chemical diversity and a high surface area are essential for their practical applications as heavy metal ion adsorbent materials.

scholarly journals An Eco-Friendly Process for Removal of Lead from Aqueous Solution

2017 ◽  
Vol 11 (5) ◽  
pp. 47 ◽  
Author(s):  
Heman A. Smail ◽  
Kafia M. Shareef ◽  
Zainab H. Ramli
Keyword(s):  
Heavy Metal ◽  
Oxalic Acid ◽  
Surface Area ◽  
Pore Volume ◽  
Metal Ion ◽  
Adsorption Equilibrium ◽  
Total Pore Volume ◽  
Heavy Metal Ion ◽  
Bet Surface Area ◽  
Barley Husk

The adsorption of lead (Pb II) ion on different types of synthesized zeolite was investigated. The BET surface area, total pore volume & average pore size distribution of these synthesized zeolites were determined by adsorption isotherms for N2, the surface area & total pore volume of their sources were found by adsorption isothermN2.The adsorption equilibrium was measured after 24h at room temperature (RT) & concentration 10mg.L-1 of Pb (II) was used. The adsorption of heavy metal Pb (II) on four different prepared zeolites (LTA from Montmorillonite clay, FAU(Y)-B.H (G2) from Barley husk, Mordenite (G1) from Chert rock, FAU(X)-S.C (G3) from shale clay & modified Shale clay by oxalic acid (N1) & sodium hydroxide (N2)), were compared with the adsorption of their sources by using static batch experimental method. The major factors affecting the heavy metal ion sorption on different synthesized zeolites & their sources were investigated. The adsorption equilibrium capacity (Qm) of Pb (II) ion for different synthesized zeolites ordered from (N1>N2>LTA>G3>G2>G1&for their sources ordered Shale clay >Montmorilonite> Barley husk>Chert rock. The atomic absorption spectrometry was used for analysis of lead heavy metal ion, the obtained results in this study showed that the different synthesized zeolites were efficient ion exchanges for removing heavy metal, in particular, the modified zeolite from shale clay by oxalic acid.

scholarly journals Carbon Nanomaterials for the Treatment of Heavy Metal-Contaminated Water and Environmental Remediation

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Rabia Baby ◽  
Bullo Saifullah ◽  
Mohd Zobir Hussein
Keyword(s):  
Heavy Metal ◽  
Surface Area ◽  
Environmental Remediation ◽  
Carbon Nanomaterials ◽  
Heavy Metal Contamination ◽  
High Surface ◽  
High Surface Area ◽  
Contaminated Water ◽  
Removal Of Heavy Metals ◽  
Carbon Based Nanomaterials

Abstract Nanotechnology is an advanced field of science having the ability to solve the variety of environmental challenges by controlling the size and shape of the materials at a nanoscale. Carbon nanomaterials are unique because of their nontoxic nature, high surface area, easier biodegradation, and particularly useful environmental remediation. Heavy metal contamination in water is a major problem and poses a great risk to human health. Carbon nanomaterials are getting more and more attention due to their superior physicochemical properties that can be exploited for advanced treatment of heavy metal-contaminated water. Carbon nanomaterials namely carbon nanotubes, fullerenes, graphene, graphene oxide, and activated carbon have great potential for removal of heavy metals from water because of their large surface area, nanoscale size, and availability of different functionalities and they are easier to be chemically modified and recycled. In this article, we have reviewed the recent advancements in the applications of these carbon nanomaterials in the treatment of heavy metal-contaminated water and have also highlighted their application in environmental remediation. Toxicological aspects of carbon-based nanomaterials have also been discussed.

Hierarchical flowerlike magnesium oxide hollow spheres with extremely high surface area for adsorption and catalysis

2016 ◽  
Vol 4 (2) ◽  
pp. 400-406 ◽  
Author(s):  
Shuliang Yang ◽  
Peipei Huang ◽  
Li Peng ◽  
Changyan Cao ◽  
Yanan Zhu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Surface Area ◽  
Magnesium Oxide ◽  
Heavy Metal Ions ◽  
Catalytic Properties ◽  
Condensation Reaction ◽  
High Surface ◽  
Hollow Spheres ◽  
High Surface Area ◽  
Adsorption Properties

3D hierarchical flowerlike MgO hollow spheres with extremely high surface area showed excellent adsorption properties for heavy metal ions and catalytic properties for the Claisen–Schmidt condensation reaction.

Bio-inspired surface-functionalization of graphene oxide for the adsorption of organic dyes and heavy metal ions with a superhigh capacity

2014 ◽  
Vol 2 (14) ◽  
pp. 5034-5040 ◽  
Author(s):  
Zhihui Dong ◽  
Dong Wang ◽  
Xia Liu ◽  
Xianfeng Pei ◽  
Liwei Chen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Synergistic Effect ◽  
Metal Ions ◽  
Surface Area ◽  
Surface Functionalization ◽  
Heavy Metal Ions ◽  
Organic Dyes ◽  
High Surface ◽  
High Surface Area

By utilizing the synergistic effect of poly-dopamine (PD) with functional groups and graphene oxide (GO) with a high surface area, a series of sub-nano thick PD layer coated GO (PD/GO) composites were fabricated and used for effectively decontaminating wastewater.

Synthesis and Characterization of Strontium Cerium Mixed Oxide Nanoparticles Using Plant Extract

2019 ◽  
Vol 17 (12) ◽  
pp. 924-937
Author(s):  
K. Kasirajan ◽  
M. Karunakaran
Keyword(s):  
Ionic Liquid ◽  
Surface Area ◽  
Plant Extract ◽  
Mixed Oxide ◽  
Metal Ion ◽  
High Surface ◽  
High Surface Area ◽  
Octadecenoic Acid ◽  
Band Gap Energy ◽  
Bacterial Strains

Green synthesis of nanomaterials is an emphasis of recent developments. Herein, a facile and eco-friendly method for the synthesis of SrO–CeO2 mixed oxide NPs using ionic liquid (IL) assisted an ethanolic solution of Pedalium murex (PM) plant extract. NPs synthesized at room temperature using an ionic liquid (IL) as a mediator for the nucleation and growth process. SrO–CeO2 mixed oxide NPs system displaying nano rod like structure with 10–15 nm and high surface area that are confirmed by XRD, and SEM studies. GC-MS spectroscopy confirms the presence of N-Hexadecanoic acid (29%), 6-Octadecenoic acid, (Z) present in the plant extract that are capable to convert the corresponding metal ion precursor to SrO–CeO2 mixed oxide NPs. In FTIR the Ce–O and SrCO3 stretching bands were observed at 451 and 856 cm–1 respectively. Raman spectroscopy give stretching frequency at 457 and 159 cm–1 that proofs the presence of CeO2 and SrO present in the mixed oxide. The band gap energy of the SrO–CeO2 mixed oxide NPs was estimated as 3.17 eV from the UV-DRS spectroscopy. The anti-bacterial studies performed against a set of bacterial strains the result showed that SrO–CeO2 mixed oxide NPs more susceptible for gram negative (G–) bacteria then gram positive (G+) bacteria. A unique feature of the antioxidant behavior of NPs reduces the concentration of DPPH radical up to 89%. The toxicology behavior of SrO–CeO2 mixed oxide NPs found due to the high oxygen site vacancies, ROS formation, smallest particle size and higher surface area.

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