Evidence map›Paper›PMID 34131155›Full record

ArticleScientific reports2021

Green copper oxide nanoparticles for lead, nickel, and cadmium removal from contaminated water.

Alaa El Din Mahmoud, Khairia M Al-Qahtani, Sahab O Alflaij, Salma F Al-Qahtani, Faten A Alsamhan

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
–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

28 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Wastewater Treatment Challenges and Circular Reuse for One Health Sustainability: A Review.International journal of environmental research and public health · 2026
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  15. Saudi journal of biological sciences · 2023
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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

5 authors.

Alaa El Din MahmoudEnvironmental Sciences Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt. alaa-mahmoud@alexu.edu.eg.
Khairia M Al-QahtaniPrincess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
Sahab O AlflaijPrincess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
Salma F Al-QahtaniCenter of Excellence for Advanced Materials and Manufacturing, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia.
Faten A AlsamhanPrincess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Environmentally friendly copper oxide nanoparticles (CuO NPs) were prepared with a green synthesis route without using hazardous chemicals. Hence, the extracts of mint leaves and orange peels were utilized as reducing agents to synthesize CuO NPs-1 and CuO NPs-2, respectively. The synthesized CuO NPs nanoparticles were characterized using scanning electron microscopy (SEM), Energy Dispersive X-ray Analysis (EDX), BET surface area, Ultraviolet-Visible spectroscopy (UV-Vis), and Fourier Transform Infrared Spectroscopy (FT-IR). Various parameters of batch experiments were considered for the removal of Pb(II), Ni(II), and Cd(II) using the CuO NPs such as nanosorbent dose, contact time, pH, and initial metal concentration. The maximum uptake capacity (q

Identifiers

PMID34131155
PMCPMC8206336

What OpenQuestion holds

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Registered trials

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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.