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| Study on the Treatment of AOX by Carbon Doped Carbon Nitride for Photocatalytic Activation of Persulfate |
| Received:April 04, 2023 |
| DOI：10.11980/j.issn.0254-508X.2023.05.016 |
| Key Words:persulfate graphitic carbon nitride 4-chlorophenol wastewater treatment |
| Fund Project:国家重点研发计划课题（2022YFC2105505）。 |
| Author Name | Affiliation | Postcode | | GUO Jinge | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuangzu Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuangzu Autonomous Region, 530004 | 530004 | | QIN Chengrong | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuangzu Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuangzu Autonomous Region, 530004 | 530004 | | ZHANG Jian | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuangzu Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuangzu Autonomous Region, 530004 | 530004 | | ZHOU Jinghong | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuangzu Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuangzu Autonomous Region, 530004 | 530004 | | LIU Xinliang* | College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi Zhuangzu Autonomous Region, 530004
Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuangzu Autonomous Region, 530004 | 530004 |
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| Abstract:C-doped graphite phase carbon nitride catalyst （Glucose-g-C3N4） was prepared by one-step co-pyrolysis with glucose and melamine as raw materials. The light absorption properties and electron-hole pair separation ability of Glucose-g-C3N4 were analyzed by UV-vis diffuse reflectance spectroscopy （DRS） and fluorescence spectroscopy （PL）. Glucose-g-C3N4 was used for the photocatalytic treatment of 4-chlorophenol （4-CP） that was a model of Adsorbable Organic Halide’s analog （AOX）. The results showed that the visible light absorption performance of Glucose-g-C3N4 was enhanced and the electron-hole pair complexation rate was reduced. After reaction for 120 min under simulated sunlight irradiation， with persulfate （PDS） dosage of 0.5 mmol/L， Glucose-g-C3N4 dosage of 0.5 g/L， and 4-CP concentration of 10 mg/L， Glucose-g-C3N4 showed the best photocatalytic activity， and the degradation rate of 4-CP could reach 87.2% and the removal rate of total organic carbon （TOC） reached 86.2%. The photocatalytic activity of Glucose-g-C3N4 was enhanced because the doping of C atom broadened the light absorption range，and reduced the band gap， increased the electron transfer rate， promoting the activation of PDS. |
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