Arsenate ions Remediation from Contaminated Water Upon Interaction with Novel ZnO-CuO Nanocomposite with <i>Ficus Carica</i> Biochar
WATER AIR AND SOIL POLLUTION, cilt.237, sa.22, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 237 Sayı: 22
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s11270-026-09954-8
- Dergi Adı: WATER AIR AND SOIL POLLUTION
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, ABI/INFORM, Artic & Antarctic Regions, BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Compendex, EMBASE, Environment Index, Geobase, Greenfile, Zoological Record, Natural Science Collection (ProQuest), Biomedical Reference Collection: Corporate Edition (EBSCO), Earth, Atmospheric, & Aquatic Science Collection (ProQuest), Health Research Premium Collection (ProQuest)
- Kocaeli Üniversitesi Adresli: Evet
Özet
The current investigation explored the ability of a novel nanocomposite (NC) of Ficus carica biochar (FCB) with zinc oxide and copper oxide (FCB-ZnO-CuO NC) to remove arsenate ions from polluted water, an environmentally harmful contaminant, using a batch technique. The presence of prominent peaks of ZnO and CuO was detected using EDX and FTIR techniques, while the morphology and particle size were determined by TEM and SEM. SEM shows irregular morphology of FCB-ZnO-CuO, and TEM shows an average particle size of 11.52 nm. XRD analysis validated the average particle size and main phases of ZnO and CuO in the composite, and confirmed the crystallinity. The chemical composition and oxidation states of FCB-ZnO-CuO NC were confirmed through XPS analysis, where 1043.20 eV and 1020 eV validate Zn, and 952.07 eV and 932.16 eV confirm the presence of Cu. The PZC of FCB-ZnO-CuO was observed at 8.50. The adsorption results revealed that under conditions of 80 mg As L-1, pH 6, a dosage of 0.5 g, and a temperature of 318 K, the FCB-ZnO-CuO NC exhibited maximum arsenate ion removal (94.65%). A reusability study showed a decline in arsenate ion adsorption from 97.02% to 40.33% in five cycles. The best fit (R2 > 0.98) was determined by the Langmuir isotherm, while the pseudo-second-order model effectively explains the kinetics of arsenate ion adsorption (R2 > 0.99).