Evidence map›Paper›PMID 40574186›Full record

ArticlePolymers2025

Catechol-Modified Alkali Lignin for Cr (VI) Removal from Synthetic Wastewater.

Chenkun Yu, Ze Liang, Ruoyao Zhou, Tingting Gao, Zhaojiang Wang, Xiaoxia Cai, Qian Lu, Cong Li, Jinshui Yao, Qinze Liu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Polymers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Chenkun YuSchool of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), #3501 Daxue Road, Western University Science Park, Jinan 250353, China.
Ze LiangSchool of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), #3501 Daxue Road, Western University Science Park, Jinan 250353, China.
Ruoyao ZhouSchool of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), #3501 Daxue Road, Western University Science Park, Jinan 250353, China.
Tingting GaoSchool of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
Zhaojiang WangSchool of Key Laboratory of Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
Xiaoxia CaiSchool of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), #3501 Daxue Road, Western University Science Park, Jinan 250353, China.ORCID 0000-0003-0865-7958
Qian LuSchool of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), #3501 Daxue Road, Western University Science Park, Jinan 250353, China.
Cong LiState Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
Jinshui YaoSchool of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), #3501 Daxue Road, Western University Science Park, Jinan 250353, China.
Qinze LiuSchool of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), #3501 Daxue Road, Western University Science Park, Jinan 250353, China.ORCID 0000-0002-2240-9320

Funding

Natural Science Foundation of Shandong Province 2023TSGC0524Natural Science Foundation of Shandong Province ZR2023ME152Universities Twenty Foundational Items of Jinan City 202228098
6 · The paper itself

Abstract

Chromium (III) ions are essential for biological functions, whereas chromium (VI) ions (Cr (VI)) pose toxicity risks to both humans and animals. Therefore, it is crucial to remove these ions from industrial sources. In this work, to remove hazardous Cr (VI) from wastewater or convert it to Cr (III), catechol-modified alkali lignin (CAL) was prepared using catechol, acetone, and alkali lignin, which is a byproduct in the paper-pulping process. The sample was characterized using a combination of techniques, including scanning electron microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. Various factors influencing the adsorption behavior of CAL were investigated. The adsorption behavior aligns with the pseudo-second-order kinetic model and adheres to the Langmuir isotherm model. CAL simultaneously achieves Cr (VI) adsorption (498.4 mg/g) and reduction (54.6% to Cr (III)), surpassing single-function lignin adsorbents by integrating catechol's redox capacity with lignin's structural stability, which is another way to efficiently utilize Cr (VI) solutions. The mechanism of adsorption and reduction is discussed, which is influenced by its functional groups. In brief, this method paves a new path for the utilization of alkali lignin and provides novel opportunities for the removal of Cr (VI) contamination.

Indexed as

adsorptionchromium (III)chromium (VI)lignin

Identifiers

PMID40574186
PMCPMC12196595

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.