Synthesis of diatomite/Fe3O4/Teff straw activated carbon composite adsorbent for Cr(VI) removal from wastewater
Yazarlar (10)
Sintayehu Shewatatek Addis Ababa Science And Technology University, Etiyopya
Girma Gonfa Addis Ababa Science And Technology University, Etiyopya
Sintayehu Mekuria Addis Ababa Science And Technology University, Etiyopya
Belete Tessema Addis Ababa Science And Technology University, Etiyopya
Gulmira Kezembayeva Satbayev University, Kazakistan
Kalyan Sundar Ghosh National Institute Of Technology Hamirpur, Hindistan
Muhammad Mushtaq Government College University Lahore, Pakistan
Mohammad Hadi Diyanatizadeh Zarmehr Tehran Oxin Co., İran
Doç. Dr. Kaan IŞINKARALAR Kastamonu Üniversitesi, Türkiye
Ahmad Hosseini-Bandegharaei Semnan University, İran
Makale Türü Açık Erişim Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Results in Chemistry
Dergi ISSN 2211-7156 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler ESCI
Makale Dili İngilizce Basım Tarihi 07-2025
Cilt / Sayı / Sayfa 16 / 1 / 102486–0 DOI 10.1016/j.rechem.2025.102486
Makale Linki https://doi.org/10.1016/j.rechem.2025.102486
Özet
Heavy metal pollution, particularly chromium (Cr), poses a significant environmental challenge. This study addresses this issue by developing a novel composite adsorbent consisting of diatomite (DE), Fe3O4, and an activated carbon from teff straw (TSAC). The nanocomposite was characterized, exploiting FT-IR, BET, SEM, and XRD analyses, revealing a substantial BET surface area of 347.45 m2/g. Response surface methodology (RSM) with central composite design (CCD) was exploited to optimize adsorption parameters, including pH, adsorbent dose, initial Cr(VI) concentration, and adsorption time. Optimal conditions yielded a removal efficiency of 93.28 % at pH 4, an adsorbent dose of 0.024 g/100 mL, an initial Cr(VI) level of 15 mg/L, and an adsorption time of 60 min. The results showed that the Freundlich and Langmuir isotherm models, along with Toth model, best matched the data. This implies that both …
Anahtar Kelimeler
Adsorption properties | Chromium (VI) adsorption | Diatomite | Magnetic composite adsorbent | Sustainability | Teff straw waste
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 5
Scopus 6
Google Scholar 7
Synthesis of diatomite/Fe3O4/Teff straw activated carbon composite adsorbent for Cr(VI) removal from wastewater

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