Sonochemical synthesis of graphitic carbon nitride-manganese oxide interfaces for enhanced photocatalytic degradation of tetracycline hydrochloride
- Title
- Sonochemical synthesis of graphitic carbon nitride-manganese oxide interfaces for enhanced photocatalytic degradation of tetracycline hydrochloride
- Author
- MADHUSUDAN, PUTTASWAMY
- Keywords
- Graphitic carbon nitride; Manganese oxide; Photocatalysis; Tetracycline hydrochloride; Sonochemical
- Issue Date
- 2020-09
- Publisher
- SPRINGER HEIDELBERG
- Citation
- ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, v. 28, no. 4, page. 4778-4789
- Abstract
- The present study focuses on the sonochemical synthesis of graphitic carbon nitride-manganese oxide (GCN/MnO2) nanocomposite for photocatalytic degradation of an environmentally hazardous pharmaceutical compound, tetracycline hydrochloride (TcH). The sonochemical synthesis aided in tailoring the morphology of GCN/MnO2. The characterization results of SEM/FESEM, XRD, FTIR, UV-Vis spectra, EIS, CV, etc., revealed on the morphology, composition, crystallinity, and other photo-electro-intrinsic properties of the materials. The synergy of GCN and MnO(2)results in rapid electron transfer, efficient visible-light absorption, and slower electron-hole pair recombination through its photo-responsive traits against TcH. It was noted that similar to 93% TcH (20 mg L-1) degradation was achieved for 30-mg catalyst dose under light-emitting diode (LED) irradiation (9 W, 220 V) in 135-min duration. The TcH mineralization results were well fit to pseudo-first-order kinetics with a rate constant of 0.02 min(-1)(R-2= 0.994). In addition, the composite possessed fair reusability for consequent cycles. Hence, the as-synthesized composite applied for photocatalysis and photoelectrocatalysis fosters a fit-for-purpose and reliable system in the decontamination of TcH in environmental samples.
- URI
- https://link.springer.com/article/10.1007/s11356-020-10813-0https://repository.hanyang.ac.kr/handle/20.500.11754/170625
- ISSN
- 0944-1344; 1614-7499
- DOI
- 10.1007/s11356-020-10813-0
- Appears in Collections:
- OFFICE OF ACADEMIC AFFAIRS[S](교무처) > Center for Creative Convergence Education(창의융합교육원) > Articles
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