kth.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
3D Natural Mesoporous Biosilica-Embedded Polysulfone Made Ultrafiltration Membranes for Application in Separation Technology
Council Sci & Ind Res CSIR, CSIR Cent Salt & Marine Chem Res Inst, GB Marg, Bhavnagar 364002, Gujarat, India.;Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Polymeric Materials. Council Sci & Ind Res CSIR, CSIR Cent Salt & Marine Chem Res Inst, GB Marg, Bhavnagar 364002, Gujarat, India..ORCID iD: 0000-0002-6586-952x
Council Sci & Ind Res CSIR, CSIR Cent Salt & Marine Chem Res Inst, GB Marg, Bhavnagar 364002, Gujarat, India..
Council Sci & Ind Res CSIR, CSIR Cent Salt & Marine Chem Res Inst, GB Marg, Bhavnagar 364002, Gujarat, India..
Show others and affiliations
2022 (English)In: Polymers, E-ISSN 2073-4360, Vol. 14, no 9, article id 1750Article in journal (Refereed) Published
Abstract [en]

Diatoms are the most abundant photosynthetic microalgae found in all aquatic habitats. In the extant study, the spent biomass (after lipid extraction) of the centric marine diatom Thalassiosira lundiana CSIRCSMCRI 001 was subjected to acid digestion for the extraction of micro composite inorganic biosilica. Then, the resulting three-dimensional mesoporous biosilica material (diatomite) was used as a filler in polysulfone (PSF) membrane preparation by phase inversion. The fabricated PSF/diatomite composite membranes were characterized by SEM-EDX, TGA, and ATR-IR, and their performances were evaluated. The number of pores and pore size were increased on the membrane surface with increased diatomite in the composite membranes as compared to the control. The diatomite composite membranes had high hydrophilicity and thermal stability, lower surface roughness, and excellent water permeability. Membranes with high % diatomite, i.e., PSF/Dia(0.5), had a maximum water flux of 806.8 LMH (Liter/m(2)/h) at 20 psi operating pressure. High-diatomite content membranes also exhibited the highest rejection of BSA protein (98.5%) and rhodamine 6G (94.8%). Similarly, in biomedical rejection tests, the PSF/Dia(0.5) membrane exhibited a maximum rejection of ampicillin (75.84%) and neomycin (85.88%) at 20 Psi pressure. In conclusion, the mesoporous inorganic biosilica material was extracted from spent biomass of diatom and successfully used in filtration techniques. The results of this study could enhance the application of natural biogenic porous silica materials in wastewater treatment for water recycling.

Place, publisher, year, edition, pages
MDPI AG , 2022. Vol. 14, no 9, article id 1750
Keywords [en]
diatom, biosilica, polysulfone, phase inversion, ultrafiltration, oil separation
National Category
Environmental Sciences Other Biological Topics Geology
Identifiers
URN: urn:nbn:se:kth:diva-313043DOI: 10.3390/polym14091750ISI: 000794505200001PubMedID: 35566918Scopus ID: 2-s2.0-85129803414OAI: oai:DiVA.org:kth-313043DiVA, id: diva2:1662271
Note

QC 20220531

Available from: 2022-05-31 Created: 2022-05-31 Last updated: 2024-01-17Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Authority records

Polisetti, Veerababu

Search in DiVA

By author/editor
Polisetti, Veerababu
By organisation
Polymeric Materials
In the same journal
Polymers
Environmental SciencesOther Biological TopicsGeology

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 48 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf