# Surface modification of sodium alginate-polyvinyl alcohol hydrogel beads using low-pressure cold plasma and application for methylene blue removal from water

https://mdr.nims.go.jp/datasets/a1829b7b-49a0-41e0-b0ef-09710e3ede09

## File

- [1-s2.0-S1944398625001687-main.pdf](https://mdr.nims.go.jp/filesets/553e49d6-ab82-442c-99a7-427f5eef6521/download) ([Detail](https://mdr.nims.go.jp/filesets/553e49d6-ab82-442c-99a7-427f5eef6521.md))

## Id

a1829b7b-49a0-41e0-b0ef-09710e3ede09

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-05T04:58:27.882808Z

## Updated at

2025-12-06T03:30:03.491537Z

## Published at

2025-12-05T23:33:58.528419Z

## Doi



## First published url

https://doi.org/10.1016/j.dwt.2025.101152

## Date published

2025-04-05

## Recorded date published

2025-4

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Surface modification of sodium alginate-polyvinyl alcohol hydrogel beads
    using low-pressure cold plasma and application for methylene blue removal from
    water
  title_type: original
  lang: en

## Description

- description: This study examines the adsorption efficiency of methylene blue (MB)
    from aqueous solutions using sodium alginate-polyvinyl alcohol (SA/PVA) hydrogel
    beads modified through low-pressure cold plasma (LPCP) treatment. The LPCP process
    significantly enhanced the surface properties of the hydrogel beads, improving
    their adsorption capacity (P<0.05). Experimental results revealed that plasma-treated
    beads exhibited substantially higher MB removal compared to untreated beads, with
    optimal performance observed under the P5 treatment condition (5 minutes of LPCP
    exposure). FTIR and SEM analyses confirmed structural modifications after adsorption
    in all samples. Adsorption kinetics adhered to a pseudo-second-order model, indicating
    chemisorption as the primary mechanism. Thermodynamic analysis demonstrated that
    the adsorption process was spontaneous and endothermic. Furthermore, the hydrogel
    beads showed excellent reusability, maintaining efficient dye removal across multiple
    cycles. These findings highlight the potential of LPCP-treated hydrogel beads
    as an effective and sustainable solution for MB removal in wastewater treatment
    applications.
  description_type: abstract
  lang: und

## Creator

- name: Rizza Wijaya
  role: author
- name: Endar Hidayat
  role: author
- name: Seiichiro Yonemura
  role: author
- name: Sadaki Samitsu
  role: author
  orcid: https://orcid.org/0000-0002-4139-1656
  organization: National Institute for Materials Science
- name: Hiroyuki Harada
  role: author
- name: Yoshiharu Mitoma
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Hydrogel beads
  schema: not_defined
- subject: Low-pressure cold plasma (LPCP)
  schema: not_defined
- subject: Surface modification
  schema: not_defined
- subject: Adsorption
  schema: not_defined
- subject: Methylene blue removal
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Desalination and Water Treatment
  issn: '19443986'
  volume: '322'
  article_number: '101152'

## Conference



## Related item



## Funding

- funder_name: Government of Japan Ministry of Education Culture Sports Science and
    Technology

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 553e49d6-ab82-442c-99a7-427f5eef6521
  filename: 1-s2.0-S1944398625001687-main.pdf
  content_type: application/pdf
  size: 8252186
  md5: 5bba27eaf59701065f921654c6f0c777

## Thumbnail

fileset_id: 553e49d6-ab82-442c-99a7-427f5eef6521
filename: 1-s2.0-S1944398625001687-main.pdf