TY - JOUR
T1 - Single-step synthesis of oxygen-doped hollow porous graphitic carbon nitride for photocatalytic ciprofloxacin decomposition
AU - Chuaicham, Chitiphon
AU - Sekar, Karthikeyan
AU - Xiong, Yihuang
AU - Balakumar, Vellaichamy
AU - Mittraphab, Yanisa
AU - Shimizu, Kuniyoshi
AU - Ohtani, Bunsho
AU - Dabo, Ismaila
AU - Sasaki, Keiko
N1 - Funding Information:
The authors would like to thank the Nanotech Center, Kyushu University for the XPS measurements; HVEM Center, Kyushu University for the TEM-EDX; and Penn State Institute of Computational and Data Sciences for providing the high-performance computing resources for the computational work. The authors thank Dr. Wang Dongmei for helping during the LC-MS analysis. The work was supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI (A) [No. JP19F19393]; Cooperative Research Programs at Hokkaido University Institute for Catalysis [Nos. 18A1001, 19B1002, 20A1001 and 21A1001]; and Kyushu University (Progress 100) to KS; and the National Science Foundation (NSF) [grant No. DMREF-1729338] to ID. This work was supported by nanotech platform with the proposal No. S-20-KU-0001. The funding source(s) was (were) not involved in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; and in the decision to submit the article for publication.
Funding Information:
The work was supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI (A) [No. JP19F19393]; Cooperative Research Programs at Hokkaido University Institute for Catalysis [Nos. 18A1001, 19B1002, 20A1001 and 21A1001]; and Kyushu University (Progress 100) to KS; and the National Science Foundation (NSF) [grant No. DMREF-1729338] to ID. This work was supported by nanotech platform with the proposal No. S-20-KU-0001. The funding source(s) was (were) not involved in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; and in the decision to submit the article for publication.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/12/1
Y1 - 2021/12/1
N2 - Pollutants degradation via visible-light driven photocatalysts have attracted interest as a potentially efficient and sustainable approach for wastewater treatment. In the present study, a series of oxygen-doped hollow porous surface graphitic carbon nitride (OCN) has been prepared by one-pot thermal polycondensation of melamine with different amounts of polyoxyethylene stearyl ether as the oxygen source and template. The prepared OCN samples were utilized for the photocatalytic ciprofloxacin (CIP) degradation, which is a pharmaceutical waste, under visible light irradiation. The highest degradation performance for CIP was obtained from the OCN sample with 1 mg polyoxyethylene stearyl, which was three times greater than that of pristine C3N4. The superior degradation performance of the OCN samples were observed due to the improved light absorption, less recombination rate of photogenerated electron and hole, and enhanced electron transportation, which was proven through the PL, photocurrent density, and EIS results. Thus, the proposed one-pot synthesis of OCN provides an effective method in producing potential photocatalysts for the removal of organic pollutants, such as discarded pharmaceuticals, in wastewater.
AB - Pollutants degradation via visible-light driven photocatalysts have attracted interest as a potentially efficient and sustainable approach for wastewater treatment. In the present study, a series of oxygen-doped hollow porous surface graphitic carbon nitride (OCN) has been prepared by one-pot thermal polycondensation of melamine with different amounts of polyoxyethylene stearyl ether as the oxygen source and template. The prepared OCN samples were utilized for the photocatalytic ciprofloxacin (CIP) degradation, which is a pharmaceutical waste, under visible light irradiation. The highest degradation performance for CIP was obtained from the OCN sample with 1 mg polyoxyethylene stearyl, which was three times greater than that of pristine C3N4. The superior degradation performance of the OCN samples were observed due to the improved light absorption, less recombination rate of photogenerated electron and hole, and enhanced electron transportation, which was proven through the PL, photocurrent density, and EIS results. Thus, the proposed one-pot synthesis of OCN provides an effective method in producing potential photocatalysts for the removal of organic pollutants, such as discarded pharmaceuticals, in wastewater.
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U2 - 10.1016/j.cej.2021.130502
DO - 10.1016/j.cej.2021.130502
M3 - Article
AN - SCOPUS:85108697266
VL - 425
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
M1 - 130502
ER -