Preparation of Multistage Pore TS-1 with Enhanced Photocatalytic Activity, Including Process Studies and Artificial Neural Network Modeling for Synergy Assessment.

Journal: Langmuir : the ACS journal of surfaces and colloids
PMID: 39238335

Abstract

Antibiotic residues have been found in several aquatic ecosystems as a result of the widespread use of antibiotics in recent years, which poses a major risk to both human health and the environment. At present, photocatalytic degradation is the most effective and environmentally friendly method. Titanium silicon molecular sieve (TS-1) has been widely used as an industrial catalyst, but its photocatalytic application in wastewater treatment is limited due to its small pores and few active sites. In this paper, we report a method for preparing multistage porous TS-1 with a high specific surface area by alkali treatment. In the photocatalytic removal of CIP (ciprofloxacin) antibiotic wastewater experiments, the alkali-treated catalyst showed better performance in terms of interfacial charge transfer efficiency, which was 2.3 times higher than that of TS-1 synthesized by the conventional method, and it was found to maintain better catalytic performance in the actual water source. In addition, this research studied the effects of solution pH, contaminant concentration, and catalyst dosage on CIP degradation, while liquid chromatography-mass spectrometry (LC-MS) was used to identify intermediates in the degradation process and infer possible degradation pathways and the toxicity of CIP, and its degradation product was also analyzed using ECOSAR 2.2 software, and most of the intermediates were found to be nontoxic and nonharmful. Finally, a 3:5:1 artificial neural network model was established based on the experiments, and the relative importance of the influence of experimental conditions on the degradation rate was determined. The above results confirmed the feasibility and applicability of photocatalytic treatment of wastewater containing antibiotics using visible light excitation alkali post-treatment TS-1, which provided technical support and a theoretical basis for the photocatalytic treatment of wastewater containing antibiotics.

Authors

  • Yulan Zhang
    Department of Combination of Mongolian Medicine and Western Medicine Stomatology, Affiliated Hospital of Inner Mongolia University for the Nationalities, Tongliao, 028043, China. zhangyl1974@126.com.
  • Yubing Liu
    Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
  • Yuan Wei
    Department of Obstetrics and Gynecology Qilu Hospital Cheeloo College of Medicine Shandong University Jinan Shandong China.
  • Yanyan Jiang
    Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University Jinan 250061 China yanyan.jiang@sdu.edu.cn.
  • Yuhui Gao
    Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
  • Chao Liu
    Anti-Drug Technology Center of Guangdong Province, National Anti-Drug Laboratory Guangdong Regional Center, Guangzhou 510230, China.
  • Guanghong Zhao
    Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
  • Ronghui Liu
    Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
  • Hongyu Wang
    School of Information Science and Technology, Northwest University, Xi'an, Shaanxi, China.
  • Xin Li
    Veterinary Diagnostic Center, Shanghai Animal Disease Control Center, Shanghai, China.
  • Huaide Liu
    Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
  • Ziyan Yu
    Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
  • Gaofeng Shi
    Department of Radiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China. gaofengs1962@hebmu.edu.cn.
  • Guoying Wang
    College of Mathematics and Computer Science, Zhejiang A&F University, Hangzhou 311300, China.

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