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Metal Ion Adsorption Using Silk Fibroin-Coated Polypropylene Filters.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Metal Ion Adsorption Using Silk Fibroin-Coated Polypropylene Filters./
作者:	Catten, Tahira A.
面頁冊數:	1 online resource (46 pages)
附註:	Source: Masters Abstracts International, Volume: 84-01.
Contained By:	Masters Abstracts International84-01.
標題:	Bioengineering. -
電子資源:	click for full text (PQDT)
ISBN:	9798834055716

Metal Ion Adsorption Using Silk Fibroin-Coated Polypropylene Filters.
Catten, Tahira A.

Metal Ion Adsorption Using Silk Fibroin-Coated Polypropylene Filters. - 1 online resource (46 pages)

Source: Masters Abstracts International, Volume: 84-01.

Thesis (M.S.)--Rensselaer Polytechnic Institute, 2022.

Includes bibliographical references

Heavy metals from industrial manufacturing wastewater can contaminate ground and surface water sources. Current wastewater treatment methods to remove these metals involve liquid separation processes which are energy intensive and expensive. Removal of these heavy metals though adsorption processes provides an alternative processing method which is less labor and energy intensive. In this thesis, adsorption of Cu (II) and Zn (II) metal ions were investigated using silk fibroin-coated nonwoven polypropylene filters. As a strong biopolymer that can be utilized as a coating for any substrate, silk fibroin contains electron-rich functional groups that serve as potential active sites for metal cation adsorption. Batch adsorption studies were conducted for the initial metal ion concentration and time effects on adsorption for a metal ion concentration range of 200-2400 ppm in aqueous solution. Filter adsorption followed a Langmuir model, with uncoated filter adsorption capacities changing from 67.5 to 50.8 mg/g and 66.8 to 83.5 mg/g for silk fibroin coated filters with Cu (II) and Zn (II) adsorption, respectively. Silk-coated filters exhibit an adsorption efficiency below 10% for copper and zinc, suggesting this silk fibroin coating requires further functionalization to remove metals down to the ppb range concentration required for wastewater discharge into the environment.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798834055716Subjects--Topical Terms:

598252
Bioengineering.
Subjects--Index Terms:

AdsorptionIndex Terms--Genre/Form:

554714
Electronic books.

Metal Ion Adsorption Using Silk Fibroin-Coated Polypropylene Filters.
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504 $a Includes bibliographical references
520 $a Heavy metals from industrial manufacturing wastewater can contaminate ground and surface water sources. Current wastewater treatment methods to remove these metals involve liquid separation processes which are energy intensive and expensive. Removal of these heavy metals though adsorption processes provides an alternative processing method which is less labor and energy intensive. In this thesis, adsorption of Cu (II) and Zn (II) metal ions were investigated using silk fibroin-coated nonwoven polypropylene filters. As a strong biopolymer that can be utilized as a coating for any substrate, silk fibroin contains electron-rich functional groups that serve as potential active sites for metal cation adsorption. Batch adsorption studies were conducted for the initial metal ion concentration and time effects on adsorption for a metal ion concentration range of 200-2400 ppm in aqueous solution. Filter adsorption followed a Langmuir model, with uncoated filter adsorption capacities changing from 67.5 to 50.8 mg/g and 66.8 to 83.5 mg/g for silk fibroin coated filters with Cu (II) and Zn (II) adsorption, respectively. Silk-coated filters exhibit an adsorption efficiency below 10% for copper and zinc, suggesting this silk fibroin coating requires further functionalization to remove metals down to the ppb range concentration required for wastewater discharge into the environment.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
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