Photocatalytic degradation of organic dyes using reduced graphene oxide (rGO)

被引：42
|
作者：
Sha, Mizaj Shabil [1 ]
Anwar, Hayarunnisa [1 ]
Musthafa, Farzana N. [1 ]
Al-Lohedan, Hamad [2 ]
Alfarwati, Sarya [1 ]
Rajabathar, Jothi Ramalingam [2 ]
Alahmad, Johaina Khalid [1 ]
Cabibihan, John-John [3 ]
Karnan, Muthusamy [4 ]
Sadasivuni, Kishor Kumar [1 ,3 ]
机构：
[1] Qatar Univ, Ctr Adv Mat, POB 2713, Doha, Qatar
[2] King Saud Univ, Coll Sci, Chem Dept, POB 2455, Riyadh 11451, Saudi Arabia
[3] Qatar Univ, Coll Engn, Dept Mech & Ind Engn, POB 2713, Doha, Qatar
[4] Rural Dev Adm, Natl Inst Anim Sci, Grassland & Forage Div, Wonju, South Korea
来源：
SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期
关键词：
ADSORPTION; NANOCOMPOSITES; METAL;
D O I：
10.1038/s41598-024-53626-8
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：
Photocatalysts have developed into a successful strategy for degrading synthetic and organic toxins, such as chemicals and dyes, in wastewater. In this study, graphene oxide was reduced at different temperatures and used for degrading indigo carmine and neutral red dyes. The wide surface areas, strong adsorption sites, and oxygen functionalities of reduced graphene oxide (rGO) at 250 degrees C (rGO-250) produced more photocatalytic degradation efficiency and adsorption percentage. The catalyst dosage, initial dye concentration, solution pH and recyclability were all used to optimize the photocatalytic activity of rGO-250. This research presents a capable nano-adsorbent photocatalyst for the efficient degradation of organic dyes. GO and rGOs were also investigated for carbon dioxide (CO2) absorption properties. Results showed that rGO-250 has better CO2 adsorption properties than other rGOs. Overall, it was observed that rGO-250 has better photocatalytic and CO2 adsorption capabilities compared to graphene oxide reduced at different temperatures.
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页数：14
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