scholarly journals Pre-irradiation Grafting of Acrylic Acid and Sodium Styrene Sulfonate on Non-woven Polyethylene Fabric for Heavy Metal Removal

2021 ◽  
Author(s):  
Nazia RAHMAN ◽  
Md. IMRAN BİSWAS ◽  
Mahbub KABİR ◽  
Nirmal CHANDRA DAFADER ◽  
Shahnaz SULTANA ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Acrylic Acid ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Styrene Sulfonate ◽  
Sodium Styrene Sulfonate

scholarly journals The Effect of Crosslinker and Pore Generated on Selective Adsorbent (Cu2+) based on Grafting of Acrylic Acid onto Cassava Starch

2015 ◽  
Vol 9 (7) ◽  
pp. 37
Author(s):  
Judy R. B. Witono ◽  
Henrietta Henrietta ◽  
Y. I. P Arry Miryanti
Keyword(s):  
Heavy Metal ◽  
Citric Acid ◽  
Acrylic Acid ◽  
Water Absorption ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Cassava Starch ◽  
Metal Adsorption ◽  
Acid Modification ◽  
Release Process

The technology development in many industries nowadays, such as electronic industry produces heavy metal wastes which may pollute our environment. The use of adsorbent as a heavy metal removal from soil and water is one of the efficient process which can be considered to be used. In addition the release of the adsorbate becomes an important way as well because usually those heavy metals still have a high value. The objective of this research is to develop adsorbent based on cassava starch. So, the release process will become easier and will not produce another waste. The adsorbent was produced through the grafting of acrylic acid onto cassava starch by using Fenton initiator. To construct a stable 3-D network, the crosslinker (CL) N,N’- methylenebisacrylamide was added. The variable observed were the amount of CL added (0.5%; 1.5%; 2.5% and 3.5%) and the treatment of generating more pores on starch copolymer. The treatments on starch copolymer observed were single freezing, second freezing, and citric acid modification and carbonization methods. Analysis performed on the adsorbent was % add-on, water absorption and metal adsorption (especially Cu2+ ion) capacity. The result showed that the used of 2.5% CL produced the highest add-on (47.66 %), the highest water absorption capacity and the highest metal adsorption capacity (0.29g Cu2+/g adsorbent) The citric acid modification also produced the highest pores on the adsorbent.

Synthesis and characterization of acrylic acid-2-hydroxyethyl methacrylate IPN hydrogels

RSC Advances ◽  
2015 ◽  
Vol 5 (93) ◽  
pp. 75870-75880 ◽  
Author(s):  
Rabin Bera ◽  
Ayan Dey ◽  
Arpan Datta sarma ◽  
Debabrata Chakrabarty
Keyword(s):  
Heavy Metal ◽  
Acrylic Acid ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Morphological Properties ◽  
Synthesis And Characterization ◽  
Hydroxyethyl Methacrylate ◽  
Poly Acrylic Acid

Three different methods have been developed to crosslink the poly(acrylic acid-2-hydroxyethyl methacrylate) to form the hydrogels having tunable swelling, rheological and morphological properties with applicability in dye and heavy metal removal.

Modified Synthetic Fibers a Treatment for Heavy Metal Removal in Aqueous

2017 ◽  
Vol 890 ◽  
pp. 133-136
Author(s):  
Patcharin Racho ◽  
Pinitta Phalathip ◽  
Warutai Dejtanon
Keyword(s):  
Heavy Metal ◽  
Acrylic Acid ◽  
Adsorption Capacity ◽  
Textile Industry ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Synthetic Fibers ◽  
Chemically Modified ◽  
Modification Process ◽  
Metal Treatment

In this study was evaluated a performance of chemically modified synthesis fiber for the heavy metal treatment. Four fibers sampled from textile industry were evaluated in this study including of polyester, nylon, rayon and polyester/cotton. The graft copolymerization is the first step of modification process using acrylic acid with and without a surfactant. Then, amino chelating group was prepared via soaked in ethylenediamine solution. The grafting percentage was found in about 30-54% and 12-138% respectively without and with a surfactant conditions, respectively.Since, 3 M of acrylic acid 0.1 g of BPO neither, a polyester/cotton fibers nor 4 M acrylic acid. Overall results showed that the amino chelating fibers had higher lead and hexavalent chromium removal efficiencies than non modified fibers. These indicated the chemically modified fibers that functionalized with acrylic acid and ethylenediamine had capable to improve to an adsorption capacity. The modified nylon fibers had the highest adsorption capacity within 48 mg/g for Pb2+ and Cr6+.

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