Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 902, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.163757
Keywords
Nanocomposites; Visible light photocatalysis; Electron-hole pair
Categories
Funding
- UGC, GOI as National Fellowship for Scheduled Caste (NF-SC)
- CIF/Hitech-CUG Gandhinagar
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In this study, 2D/2D nitrogen-doped g-C3N4/In2S3 nanocomposites were developed by varying concentrations of Ngcn. The as-prepared photocatalysts exhibited excellent photodegradation efficiency and adsorption capacity, showing promising potential for the treatment of industrial wastewater.
The draining of industrial waste into natural water sources is creating severe destruction to the environ-ment by contaminating the water. Here, 2D/2D nitrogen-doped g-C3N4/In2S3 nanocomposites (NGI) were developed by varying concentrations of Ngcn {337 mg (NGI-1), 675 mg (NGI-2) and 1350 mg (NGI-3), respectively} by simple polycondensation-reflux method. The remediation of organic pollutants from wastewaters was performed by as-prepared photocatalysts periodically. PXRD reveals the monoclinic and cubic structure of Ngcn and In2S3 respectively. FESEM and TEM images confirm the sheet-like morphology with the average size of similar to 500 nm whereas D-spacing values in SAED patterns resemble XRD peaks for both Ngcn and In2S3 respectively. Moreover, the XPS technique was performed to confirm the elemental com-positions of Ngcn and In2S3 photocatalysts. The maximum pore size (20.44 nm) and pore volume (1.15 cc/g) of NGI-2 nanocomposite were observed by BET results. NGI-2 showed the maximum photodegradation efficiency similar to 99% in 10 min with photodegradation rate (0.141/min) that is similar to 2 folds than pristine indium sulfide (InS) and 8-folds than nitrogen-doped g-C3N4 (Ngcn). Moreover, NGI-2 showed a good adsorption capacity of 5.02 mg/g which is 2-folds than Ngcn. The enhanced adsorption capacity along with photo-catalytic degradation of NGI-2 could be attributed to a high rate of electron-hole pair separation due to the combined effect of band gap, large surface area and interface formation. The industrial sewage analysis was also examined by NGI-2 and found significant photodegradation efficiency. (C) 2022 Published by Elsevier B.V.
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