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AuthorHira, Ashiq
AuthorNadeem, Nimra
AuthorMansha, Asim
AuthorIqbal, Javed
AuthorYaseen, Muhammad
AuthorZahid, Muhammad
AuthorShahid, Imran
Available date2022-09-07T07:36:56Z
Publication Date2022-02-28
Publication NameJournal of Physics and Chemistry of Solids
Identifierhttp://dx.doi.org/10.1016/j.jpcs.2021.110437
CitationAshiq, H., Nadeem, N., Mansha, A., Iqbal, J., Yaseen, M., Zahid, M., & Shahid, I. (2022). G-C3N4/Ag@ CoWO4: A novel sunlight active ternary nanocomposite for potential photocatalytic degradation of rhodamine B dye. Journal of Physics and Chemistry of Solids, 161, 110437.
ISSN00223697
URIhttps://www.sciencedirect.com/science/article/pii/S0022369721005035
URIhttp://hdl.handle.net/10576/33748
AbstractPresent study reports the fabrication of novel sunlight active heterogeneous photocatalyst, i.e. Ag@g-C3N4/CoWO4 for potential degradation of rhodamine B dye. The ternary nanocomposite was fabricated using thermal condensation of melamine to prepare g-C3N4 followed by coupling with silver doped cobalt tungstate (Ag@CoWO4) using the hydrothermal method. The novel composite photocatalyst (Ag@g-C3N4/CoWO4) along with pristine photocatalysts (g-C3N4 and Ag@CoWO4) were well characterized in term of morphology (scanning electron microscopy), structure (Fourier Transformed Infrared spectroscopy), crystallinity (X-ray diffraction), and composition (energy dispersive X-ray). The energy band gaps of catalysts were calculated using UV–visible spectroscopic analysis (Tauc plot). The characterization analysis supports the successful assembly of Ag@CoWO4 nanoparticles on the surface of g-C3N4 nanosheets with good crystallinity. The photocatalytic potential of novel catalysts was examined through the degradation of rhodamine B dye in water. The engineered heterojunction promotes photocatalytic activity and improves photo-generated charge separation. The results of the proposed research showed boosted sunlight active photocatalytic efficiency (97% in 120 min at pH 6) of novel composite against rhodamine B dye degradation. The kinetics of the reaction was determined using different models and RSM was used as a statistical tool for interaction and individual effects of influencing parameters. The numerical values of optimized parameters endorsed the results of RSM i.e. composite dose = 10mg/100 mL, H2O2 = 15 mM, and pH = 6.
SponsorDr. Muhammad Zahid (corresponding author) is thankful to TWAS (Grant No. 15-410 RG/MSN/AS_C–FR3240288961 under TWAS-COMSTECH joint Research Grant) for equipments and the University of Agriculture Faisalabad, Pakistan for facilities to conduct this research. The valuable support from Central Lab, LUMS Pakistan for characterization of samples is highly acknowledged.
Languageen
PublisherElsevier
SubjectDye degradation
G–C3N4–based doped ternary nanocomposites
Sunlight active heterogeneous photocatalysis
Response surface methodology
Wastewater treatment
TitleG-C3N4/Ag@CoWO4: A novel sunlight active ternary nanocomposite for potential photocatalytic degradation of rhodamine B dye
TypeArticle
Volume Number161
ESSN1879-2553
dc.accessType Open Access


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