Synthesis of CQDs/MIL-101(Cr) photocatalytic nanocomposite for degradation of RR-195

Nguyen Thi Hong Van; Nguyen Thi Tra; PGS. Phạm Xuân Núi - ĐH Mỏ địa chất

doi:10.62239/jca.2024.018

Authors

Nguyen Thi Hong Van Institute of Environment, Vietnam Maritime University, 484 Lach tray street, Le Chan, Hai Phong, VIETNAM Author
Nguyen Thi Tra Department of Chemical Engineering, Hanoi University of Mining and Geology, 18-Vien Street, Bac Tu Liem District, Hanoi, Vietnam. Author
Pham Xuan Nui Department of Chemical Engineering, Hanoi University of Mining and Geology, 18-Vien Street, Bac Tu Liem District, Hanoi, Vietnam. Author

DOI:

https://doi.org/10.62239/jca.2024.018

Keywords:

CQDs, UiO-66, RR-195 degradation, photocatalyst, nanocomposite

Abstract

CQDs, characteristically quasispheroidal carbon nanoparticles composed of amorphous to crystalline carbon base, is a prospective semiconductor quantum dots owing to its excellent optical absorptivity, chemical stability, nontoxicity, and facile synthesis. In this study, we demonstrated the impregnation method to integrate CQDs, formed from chitosan with MIL-101(Cr) from terephthalic acid recycled by PET waste to synthesize CQDs/MIL-101(Cr) nanocomposite. After the hybridization of CQDs with MIL-101(Cr), the band gap energy of the 50% CQDs/MIL-101(Cr) has the lowest Eg (1.98 eV), allowing the demonstration of photocatalytic activity under high visible light. This material was tested in the photodegradation RR-195 dye and compared with the pristine components. The highest RR-195 degradation efficiency was recorded when using catalyst mass: 50 mg of 50% CQDs/MIL-101(Cr) catalyst samples, dye concentration: 50 ppm after 4 h under xenon lamp 300w was 96%. These results could promote a new material as a new semiconductor that can be used to protect water from further pollution.

Downloads

Download data is not yet available.

References

Pardeep Singh, Anwesha Borthakur, P.K Mishra, Dhanesh Tiwary, 2019.

Łukasz Janus, Marek Pia˛tkowski, Julia Radwan-Pragłowska, Dariusz Bogdał and Dalibor Matysek, Nanomaterials (2019). https://doi.org/10.3390/nano9020274.

Rongbin Lin, Shumin Li, Jingyun Wang, Jiapeng Xu, Chunhui Xu, Jin Wang, Chunxia Li and Zhengquan Li, Inorganic chemistry (2019). https:/doi.org/10.1039/C8QI01164H.

Xiaoyan Wei, Yawen Wang, Yu Huang, Caimei Fan, Journal of Alloys and Compounds 802 (2019) 467-476. https://doi.org/10.1016/j.jallcom.2019.06.086.

Jianwei Ren, Xoliswa Dyosiba, Nicholas M. Musyoka, Henrietta W. Langmi, Brian C. North, Mkhulu Mathe, Marice S. Onyango, International Journal of Hydrogen energy 41 (2016) 18141-18146. https://doi.org/10.1016/J.IJHYDENE.2016.08.040.

X.N. Pham, V.T. Vu, H.V.T. Nguyen, T.T.B. Nguyen, H. V. Doan, Nanoscale Advances. 4 (2022) 3600–3608. https://doi.org/10.1039/d2na00371f.

X. Zhou, W. Huang, J. Shi, Z. Zhao, q. Xia, Y. Li, H. Wang and Z. Li, J, Mater. Chem. A 2(13) (2014) 4722–4730.

D. Yin, C. Li, H. Ren, O. Shekhah, J. Liu, and C. Liang, RSC Advances 7 (3) (2017). https://doi.org/10.1039/c6ra25722d.

Z. Li, G. Che, W. Jiang, L. Liu, and H. Wang, RSC Advances 9 (7) (2019) 57. https://doi.org/10.1039/c9ra05600a.

Patrick S.Bárcia, Daniela Guimarães , Patrícia A.P. Mendes, José A.C. Silva, Vincent Guillermc, Hubert Chevreau, Christian Serre, Alírio E. Rodrigues, Micropor. Mesopor. Mat. 139 (2011) 67–73. https://doi.org/10.1016/j.micromeso.2010.10.019.

S. Ahmed, M. G. Rasul, W. N. Martens, R. Brown, and M. A. Hashib, Desalination 261 (1–2) (2010). https://doi.org/10.1016/j.desal.2010.04.06