Inactivation of pathogens by visible light photocatalysis with nitrogen-doped TiO2 and tourmaline-nitrogen co-doped TiO2

被引:21
|
作者
Tzeng, Jing-Hua [1 ,2 ]
Weng, Chih-Huang [3 ]
Yen, Li-Ting [1 ,4 ]
Gaybullaev, Gulomjon [1 ]
Chang, Che-Jui [1 ]
de Luna, Mark Daniel G. [5 ]
Lin, Yao-Tung [1 ,6 ]
机构
[1] Natl Chung Hsing Univ, Dept Soil & Environm Sci, Taichung 402, Taiwan
[2] Univ Delaware, Dept Civil & Environm Engn, Newark, DE 19716 USA
[3] I Shou Univ, Dept Civil & Ecol Engn, Kaohsiung 84008, Taiwan
[4] Utah State Univ, Dept Plant Soil & Climate, Salt Lake City, UT USA
[5] Univ Philippines, Coll Engn, Dept Chem Engn, Quezon City, Philippines
[6] Innovat & Dev Ctr Sustainable Agr, Taichung 402, Taiwan
关键词
Staphylococcus aureus; Escherichia coli; Mycobacterium avium; Candida albicans; Tourmaline-nitrogen-codoped titanium dioxide; ESCHERICHIA-COLI; STAPHYLOCOCCUS-AUREUS; WATER DISINFECTION; COMPOSITE; DEGRADATION; NANOPARTICLES; MECHANISMS; BACTERIA; TITANIA; LAYER;
D O I
10.1016/j.seppur.2021.118979
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Four types of pathogens, namely, Staphylococcus aureus (S. aureus, gram-positive bacteria), Escherichia coli (E. coli, gram-negative bacteria), Mycobacterium avium (M. avium, mycobacteria), and Candida albicans (C. albicans, fungi), are common microorganisms that cause serious human health issues. However, searching for an efficient material for inactivating pathogens via visible light driven photocatalysts remains a challenge. An attempt was made to compare the photocatalytic performance using nano-sized nitrogen-doped titanium oxide (N-TiO2) and tourmaline-nitrogen-co-doped titanium oxide (T-N-TiO2) for inactivation of pathogens under visible light irradiation. S. aureus was used to compare the photocatalytic inactivation performance of N-TiO2 and T-N-TiO2. The findings showed that photocatalyst dosage, initial microbial concentration, and visible light intensity are the key factors affecting photocatalytic inactivation process for both photocatalysts. A 2-log-inactivation of S. aureus under 7.25 mW/cm2 visible light irradiation via T-N-TiO2 was achieved within 3 h, which is shorter than the inactivation via N-TiO2 (4 h). TEM observations had proved that both visible-light-induced photocatalysis could cause severe damage to the cell membrane. The results of electron paramagnetic resonance also indicated that more hydroxyl radicals generated in the T-N-TiO2 photo-inactivation system allowed a better inactivation performance of the visible-light-induced T-N-TiO2. This is the first work exploring that Light-responsive Modified Hom's model (LHM) is able to simulate photocatalytic inactivation of S. aureus. T-N-TiO2 composite was firstly evaluated for its efficacy of photocatalytic inaction of S. aureus, E. coli, and M. avium, and an increasing order of time was required for complete inactivation as follows: S. aureus < E. coli < M. avium < C. albicans. We have found that the inactivation efficiency of tested pathogens using T-N-TiO2 is the highest as compared with literature works. Overall, T-N-TiO2 exhibits a better inactivation efficiency than that of N-TiO2 in all the tested pathogens.
引用
收藏
页数:10
相关论文
共 50 条
  • [41] TiO2 Nanoparticles Co-doped with Nitrogen and Fluorine as Visible-Light-Activated Antifungal Agents
    Mukherjee, Khushi
    Acharya, Krishnendu
    Biswas, Aritra
    Jana, Nikhil R.
    ACS APPLIED NANO MATERIALS, 2020, 3 (02): : 2016 - 2025
  • [42] Preparation and Characterization of Visible-Light-Driven TiO2 Photocatalyst Co-Doped with Nitrogen and Erbium
    Chen, Guihua
    Wang, Yong
    Zhang, Juihui
    Wu, Chenglin
    Liang, Huading
    Yang, Hui
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2012, 12 (05) : 3799 - 3805
  • [43] Visible light induced photodegradation of organic pollutants on nitrogen and fluorine co-doped TiO2 photocatalyst
    Wang, ZP
    Jun, X
    Cai, WM
    Zhou, BX
    He, ZG
    Cai, CG
    Hong, XT
    JOURNAL OF ENVIRONMENTAL SCIENCES, 2005, 17 (01) : 76 - 80
  • [45] Enhancement of the visible light photocatalytic activity of vanadium and nitrogen co-doped TiO2 thin film
    Hang Nguyen Thai Phung
    Nguyen Duc Truong
    Lam Thanh Nguyen
    Kieu Loan Phan Thi
    Phuong Ai Duong
    Vu Tuan Hung Le
    JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS, 2015, 24 (04)
  • [46] Characterization and activity of visible light-driven TiO2 photocatalysts co-doped with nitrogen and lanthanum
    Zhang, Xiaotong
    Zhou, Guowei
    Zhang, Huayong
    Wu, Cuicui
    Song, Hongbin
    TRANSITION METAL CHEMISTRY, 2011, 36 (02) : 217 - 222
  • [47] Tungsten and nitrogen co-doped TiO2 nano-powders with strong visible light response
    Shen, Yanfang
    Xiong, Tianying
    Li, Tiefan
    Yang, Ke
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 83 (3-4) : 177 - 185
  • [48] Preparation, characterization and visible light photocatalytic activity of silver, nitrogen co-doped TiO2 photocatalyst
    Khan, Matiullah
    Gul, Sahar Ramin
    Li, Jing
    Cao, Wenbin
    Mamalis, Athanasios G.
    MATERIALS RESEARCH EXPRESS, 2015, 2 (06):
  • [49] Visible light response of nitrogen and sulfur co-doped TiO2 photocatalysts fabricated by anodic oxidation
    Komai, Yosuke
    Okitsu, Kenji
    Nishimura, Rokuro
    Ohtsu, Naofumi
    Miyamoto, Goro
    Furuhara, Tadashi
    Semboshi, Satoshi
    Mizukoshi, Yoshiteru
    Masahashi, Naoya
    CATALYSIS TODAY, 2011, 164 (01) : 399 - 403
  • [50] Nitrogen doped TiO2 photocatalysts with visible-light activity
    Fang Xiaoming
    Zhang Zhengguo
    Chen Qinglin
    PROGRESS IN CHEMISTRY, 2007, 19 (09) : 1282 - 1290