Preparation of calcium oxide/graphitic carbon nitrides (CaO/g-C3N4) composite for photocatalyst dye degradation

被引：0

作者：

Chaisrisongkram, Chinanun ^{[1
]}

Thiwawong, Thutiyaporn ^{[1
]}

Onlaor, Korakot ^{[1
]}

Tunhoo, Benchapol ^{[1
]}

机构：

[1] King Mongkuts Inst Technol Ladkrabang, Coll Mat Innovat & Technol, Elect & Control Syst Nanodevice Res Lab, Bangkok 10520, Thailand

来源：

SCIENCEASIA | 2024年 / 50卷 / 03期

关键词：

calcium oxide; dye degradation; graphitic carbon nitride; composite material; VISIBLE-LIGHT; G-C3N4; NANOCOMPOSITES; DECOMPOSITION; OXIDE;

D O I：

10.2306/scienceasia1513-1874.2024.066

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

: Dye degradation properties of composited calcium oxide (CaO) and graphitic carbon nitride (g-C3N4) 3 N 4 ) were studied. The CaO and g-C3N4 3 N 4 nanoparticles were derived under separate thermal calcination processes from eggshells and melamine, respectively. Physical properties of the synthesized CaO and g-C3N4 3 N 4 were investigated by X-ray diffractometry (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The synthesized CaO and g-C3N4 3 N 4 nanoparticles were, then, composited at various concentrations, and the photocatalytic behaviors of the composited samples were investigated in an aqueous solution of methylene blue, with a irradiation source of 220 W white light-emitting diode lamp. Results showed that the optimal ratio of the composite material for dye degradation was 10% CaO:90% g-C3N4, 3 N 4 , giving 95.89% degradation efficiency with an exposure time of 15 min and degradation rate of 0.1727 min-1. -1 .

引用

页数：14

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