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表面沉积法制备TiO2-碳纳米管巴克纸复合材料用于高效去除废水污染物

Mariafrancesca Baratta Aleksey Valentinovich Ershov Donatella Aiello Anna Napoli Leonardo Di Donna Alexandr Ivanovic Mashin Fiore Pasquale Nicoletta Giovanni De Filpo

新型炭材料（中英文）2025，Vol.40Issue(2)：438-455,18.
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新型炭材料（中英文）2025，Vol.40Issue(2)：438-455,18.DOI:10.1016/S1872-5805(25)60966-8

表面沉积法制备TiO2-碳纳米管巴克纸复合材料用于高效去除废水污染物

Improving the catalytic performance of TiO2 by its surface deposition on CNT buckypapers for use in the removal of wastewater pollutants

Mariafrancesca Baratta 1Aleksey Valentinovich Ershov 2Donatella Aiello 1Anna Napoli 1Leonardo Di Donna 1Alexandr Ivanovic Mashin 2Fiore Pasquale Nicoletta 3Giovanni De Filpo1

作者信息

  • 1. Department of Chemistry and Chemical Technologies,University of Calabria,87036 Rende,Italy
  • 2. Applied Physics & Microelectronics,Lobachevsky State University of Nizhni Novgorod,Nizhni Novgorod 603105,Russia
  • 3. Department of Pharmacy,Health and Nutritional Sciences,University of Calabria,87036 Rende,Italy
  • 折叠

摘要

Abstract

Buckypapers(BPs)consist of carbon nanotube(CNT)membranes with good mechanical,thermal and elec-trical properties.We report the modification of CNT buckypapers by the surface deposition of a thin layer of ti-tanium dioxide and their subsequent photocatalytic use for the removal of three wastewater pollutants:diclofenac(DF),carbofuran(CB)and methylene blue(MB).The results show the following decreases(RE)in the initial concentrations of these pollutants,REDF=99.5%,REMB=96%and RECB=90%after 90 min of exposure to UV-Vis radiation using～0.6 mg of photocatalyst.Experiments also showed that the degradation rate of diclofenac(k=0.1028 min-1)is respectively 3.5 and 6 times faster than the values for CB(k=0.0298 min-1)and MB(k=0.0174 min-1),probably due to the easier bond cleavage in DF.UV-Vis irradiated solutions of these pollutants were then analyzed by mass spectrometry to identify the species formed during photocatalysis and suggest possible degradation paths for MB,DF,and CB.Data showed that the degradation of DF involves the formation of a photocyclization product through loss of HCl molecule,clearly consuming less energy than that needed for the opening of the central aromatic ring in MB,or the loss of the N-methyl amide functional group for CB.

关键词

碳纳米管/巴克纸/纳米材料/水污染物/二氧化钛

Key words

Carbon nanotubes/Buckypapers/Nanomaterials/Water pollutants/Titanium dioxide

分类

化学化工

引用本文复制引用

Mariafrancesca Baratta,Aleksey Valentinovich Ershov,Donatella Aiello,Anna Napoli,Leonardo Di Donna,Alexandr Ivanovic Mashin,Fiore Pasquale Nicoletta,Giovanni De Filpo..表面沉积法制备TiO2-碳纳米管巴克纸复合材料用于高效去除废水污染物[J].新型炭材料（中英文）,2025,40(2):438-455,18.

基金项目

This research was funded by MIUR,Italian Min-istry for University and Research(EX-60%/2024). MIUR,Italian Ministry for University and Research(EX-60%/2024). （EX-60%/2024）

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