Evidence map›Paper›PMID 39294196›Full record

ArticleScientific reports2024

Aqueous phase adsorption of phenothiazine derivative onto zinc oxide doped activated carbon.

Clement O Obadimu, Solomon E Shaibu, Godwin N Enin, Ekemini B Ituen, Idongesit B Anweting, Uwem U Ubong, Ifiok O Ekwere, Saeed G Adewusi, Tijesu J Adeoye, Dele P Fapojuwo and 8 more

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In one paragraph

Article in Scientific reports, 2024. 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

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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. Investigation of COACS omega · 2025
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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

18 authors.

Clement O ObadimuDepartment of Chemistry, Akwa Ibom State University, Ikot Akpaden, Nigeria.
Solomon E ShaibuDepartment of Chemistry, University of Uyo, Uyo, Nigeria.
Godwin N EninDepartment of Chemistry, University of Uyo, Uyo, Nigeria.
Ekemini B ItuenEmerging Materials and Energy Group, Department of Chemistry, University of Uyo, Uyo, Nigeria.
Idongesit B AnwetingDepartment of Chemistry, University of Uyo, Uyo, Nigeria.
Uwem U UbongDepartment of Chemistry, Akwa Ibom State University, Ikot Akpaden, Nigeria.
Ifiok O EkwereDepartment of Chemistry, Akwa Ibom State University, Ikot Akpaden, Nigeria.
Saeed G AdewusiDepartment of Chemistry, School of Sciences, Federal University of Education, Zaria, Nigeria.
Tijesu J AdeoyeDepartment of Chemistry, University of Vermont, Burlington, VT, 05405, USA.
Dele P FapojuwoDepartment of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa.
Utibe A OfonDepartment of Microbiology, University of Uyo, Uyo, Nigeria.
Opeyemi K FatunlaDepartment of Microbiology, University of Uyo, Uyo, Nigeria.
Nathaniel S EssienDepartment of Chemistry, University of Uyo, Uyo, Nigeria.
Oluwatosin Y AuduDrug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch 7701, Cape Town, South Africa.
Zenixole R TshentuDepartment of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa.
Simphiwe M NelanaDepartment of Chemistry, Vaal University of Technology, Vanderbijlpark, South Africa.
Michael J KlinkDepartment of Chemistry, Vaal University of Technology, Vanderbijlpark, South Africa.
Olushola S AyandaDepartment of Chemistry, Federal University Oye-Ekiti, Oye-Ekiti, Nigeria. osayanda@gmail.com.

Funding

National Research Foundation TTK170422228302
6 · The paper itself

Abstract

Plant-mediated synthesis of nanoparticles is a sustainable approach that has gained widespread scientific acceptance due to its numerous benefits and applications. In this study, a zinc oxide-doped activated carbon (ZAC) derived from palm kernel shells (PKS) was synthesized via a bioreduction route using a water-based extract of Nymphaea lotus leaves as a reducing agent. The synthesized ZAC nanocomposites were characterized using microscopic (TEM, SEM) and spectroscopic (FTIR, EDS, XRD, and UV-Vis) analyses. The adsorptive properties of ZAC and efficiency in scavenging a phenothiazine derivative (methylene blue) from an aqueous solution were investigated. Results reveal that nano-scale ZAC particles were crystalline, exhibited irregular shapes, with an average size of 45 nm, and were highly dispersed. The optimum quantity adsorbed was 248 mg/g at a methylene blue concentration of 140 mg/L for 60 min using 0.02 g/100 mL of ZAC. Adsorption and kinetics data closely aligned with the Freundlich isotherm and the pseudo-second-order model, respectively indicating heterogeneous surface adsorption and chemisorption as the dominant mechanisms. The regeneration study of ZAC shows that over five cycles, thermal regeneration maintained high adsorption capacity with minimal decline and chemical regeneration significantly led to reduction in the adsorption capacity but solvent washing offered a balance between efficacy and structural preservation.

Indexed as

AdsorptionMethylene blue dyeNanocompositeNymphaea lotusZinc-doped palm kernel

Identifiers

PMID39294196
PMCPMC11411138

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