Field and Pretreatment-Free Detection of Heavy-Metal Ions in Organic Polluted Water through an Alkyne-Coded SERS Test Kit

2016 ◽  
Vol 8 (41) ◽  
pp. 27772-27778 ◽  
Author(s):  
Yi Zeng ◽  
Jiaqiang Ren ◽  
Aiguo Shen ◽  
Jiming Hu
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Polluted Water ◽  
Test Kit

scholarly journals Porous BMTTPA–CS–GO nanocomposite for the efficient removal of heavy metal ions from aqueous solutions

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3725-3731
Author(s):  
Juan Huang ◽  
Weirong Cui ◽  
Ruping Liang ◽  
Li Zhang ◽  
Jianding Qiu
Keyword(s):  
Heavy Metal ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Polluted Water ◽  
Efficient Removal

Novel porous BMTTPA–CS–GO nanocomposites are prepared by covalently grafting BMTTPA–CS onto GO surfaces, and used for efficient removal of heavy metal ions from polluted water.

scholarly journals Lead Remediation Using Smart Materials. A Review

2019 ◽  
Vol 233 (10) ◽  
pp. 1377-1409 ◽  
Author(s):  
Sadia Ata ◽  
Anila Tabassum ◽  
Ismat Bibi ◽  
Farzana Majid ◽  
Misbah Sultan ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Physicochemical Properties ◽  
Metal Ions ◽  
Smart Materials ◽  
Contact Time ◽  
Heavy Metal Ions ◽  
Aqueous Media ◽  
Polluted Water ◽  
Experimental Conditions ◽  
Pb Ions

Abstract The nanoparticles have been prepared and employed as excellent adsorbents for the sequestration of heavy metal ions and hazardous impurities from the aqueous media. The surface morphological, textural and structural properties of nanoparticles have been modified, which are capable and potentially useful for the remediation of metal ions. Several metals (oxides, doped, nanocomposites of Fe, Ti, Zn, SiO2, SiC, Mo, Co, Ni, Zr, Mn, Si, S, Al, Cu, Ce, graphene, CNTs) were reported an efficient adsorbents for the removal of lead (Pb) ions from aqueous media and polluted water. The present review focuses on different kinds of nanoparticles such as metal oxides, carbon based and host supported employed for removal of Pb ions under varying experimental conditions such as pH, temperature, contact time and concentrations. The preparation strategies, physicochemical properties and adsorption are also discussed. Based on studies, it was found that the smart materials are affective adsorbents for the purification of wastewater containing Pb ions and could possibly extended for the remediation of other heavy metal ions.

scholarly journals A general route to modify diatomite with niobates for versatile applications of heavy metal removal

RSC Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 3816-3827 ◽  
Author(s):  
Tianning Wang ◽  
Yunfei Yang ◽  
Jinshu Wang ◽  
Junshu Wu ◽  
Lingmin Sun ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Polluted Water

Nanostructured niobates are crystallized on natural diatomite for cleaning polluted water with heavy metal ions.

Bioadsorption of Multiple Heavy Metal Ions by Rhizophora Apiculate sp. and Elaesis Guineensis sp.

2017 ◽  
Vol 14 (1) ◽  
pp. 15
Author(s):  
M.B. Nicodemus Ujih ◽  
Mohammad Isa Mohamadin ◽  
Milla-Armila Asli ◽  
Bebe Norlita Mohammed
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Removal Efficiency ◽  
Heavy Metal Ions ◽  
Agricultural Waste ◽  
Living Organism ◽  
Heavy Metal Concentration ◽  
Industrial Area ◽  
Electrochemical Treatment ◽  
Chemical Oxidation

Heavy metal ions contamination has become more serious which is caused by the releasing of toxic water from industrial area and landfill that are very harmful to all living organism especially human and can even cause death if contaminated in small amount of heavy metal concentration. Currently, peoples are using classic method namely electrochemical treatment, chemical oxidation/reduction, chemical precipitation and reverse osmosis to eliminate the metal ions from toxic water. Unfortunately, these methods are costly and not environmentally friendly as compared to bioadsorption method, where agricultural waste is used as biosorbent to remove heavy metals. Two types of agricultural waste used in this research namely oil palm mesocarp fiber (Elaesis guineensis sp.) (OPMF) and mangrove bark (Rhizophora apiculate sp.) (MB) biomass. Through chemical treatment, the removal efficiency was found to improve. The removal efficiency is examined based on four specification namely dosage, of biosorbent to adsorb four types of metals ion explicitly nickel, lead, copper, and chromium. The research has found that the removal efficiency of MB was lower than OPMF; whereas, the multiple metals ions removal efficiency decreased in the order of Pb2+ > Cu2+ > Ni2+ > Cr2+.

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