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Title: Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light

Abstract

In most climates, solar energy is readily available and can be used for water purification. But, solar disinfection of drinking water mostly relies on ultraviolet light, which represents only 4% of the total solar energy, and this leads to a slow treatment speed. Therefore, the development of new materials that can harvest visible light for water disinfection, and so speed up solar water purification, is highly desirable. Here we show that few-layered vertically aligned MoS2 (FLV-MoS2) films can be used to harvest the whole spectrum of visible light (~50% of solar energy) and achieve highly efficient water disinfection. The bandgap of MoS2 was increased from 1.3 to 1.55 eV by decreasing the domain size, which allowed the FLV-MoS2 to generate reactive oxygen species (ROS) for bacterial inactivation in the water. The FLV-MoS2 showed a ~15 times better log inactivation efficiency of the indicator bacteria compared with that of bulk MoS2, and a much faster inactivation of bacteria under both visible light and sunlight illumination compared with the widely used TiO2. Moreover, by using a 5 nm copper film on top of the FLV-MoS2 as a catalyst to facilitate electron–hole pair separation and promote the generation of ROS, the disinfection ratemore » was increased a further sixfold. Here, we achieved water disinfection of >99.999% inactivation of bacteria in 20 min with a small amount of material (1.6 mg l–1) under simulated visible light.« less

Authors:
 [1];  [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2]
+ Show Author Affiliations
  1. Stanford Univ., Stanford, CA (United States)
  2. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1340155
Alternate Identifier(s):
OSTI ID: 1349090
Report Number(s):
SLAC-PUB-16911
Journal ID: ISSN 1748-3387; TRN: US1701722
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Nature Nanotechnology
Additional Journal Information:
Journal Volume: 11; Journal ID: ISSN 1748-3387
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; CHEM; ENV; MATSCI; photocatalysis; two-dimensional materials; 36 MATERIALS SCIENCE

Citation Formats

Liu, Chong, Kong, Desheng, Hsu, Po -Chun, Yuan, Hongtao, Lee, Hyun -Wook, Liu, Yayuan, Wang, Haotian, Wang, Shuang, Yan, Kai, Lin, Dingchang, Maraccini, Peter A., Parker, Kimberly M., Boehm, Alexandria B., and Cui, Yi. Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light. United States: N. p., 2016. Web. doi:10.1038/nnano.2016.138.
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Liu, Chong, Kong, Desheng, Hsu, Po -Chun, Yuan, Hongtao, Lee, Hyun -Wook, Liu, Yayuan, Wang, Haotian, Wang, Shuang, Yan, Kai, Lin, Dingchang, Maraccini, Peter A., Parker, Kimberly M., Boehm, Alexandria B., & Cui, Yi. Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light. United States. https://doi.org/10.1038/nnano.2016.138
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Liu, Chong, Kong, Desheng, Hsu, Po -Chun, Yuan, Hongtao, Lee, Hyun -Wook, Liu, Yayuan, Wang, Haotian, Wang, Shuang, Yan, Kai, Lin, Dingchang, Maraccini, Peter A., Parker, Kimberly M., Boehm, Alexandria B., and Cui, Yi. Mon . "Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light". United States. https://doi.org/10.1038/nnano.2016.138. https://www.osti.gov/servlets/purl/1340155.
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@article{osti_1340155,
title = {Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light},
author = {Liu, Chong and Kong, Desheng and Hsu, Po -Chun and Yuan, Hongtao and Lee, Hyun -Wook and Liu, Yayuan and Wang, Haotian and Wang, Shuang and Yan, Kai and Lin, Dingchang and Maraccini, Peter A. and Parker, Kimberly M. and Boehm, Alexandria B. and Cui, Yi},
abstractNote = {In most climates, solar energy is readily available and can be used for water purification. But, solar disinfection of drinking water mostly relies on ultraviolet light, which represents only 4% of the total solar energy, and this leads to a slow treatment speed. Therefore, the development of new materials that can harvest visible light for water disinfection, and so speed up solar water purification, is highly desirable. Here we show that few-layered vertically aligned MoS2 (FLV-MoS2) films can be used to harvest the whole spectrum of visible light (~50% of solar energy) and achieve highly efficient water disinfection. The bandgap of MoS2 was increased from 1.3 to 1.55 eV by decreasing the domain size, which allowed the FLV-MoS2 to generate reactive oxygen species (ROS) for bacterial inactivation in the water. The FLV-MoS2 showed a ~15 times better log inactivation efficiency of the indicator bacteria compared with that of bulk MoS2, and a much faster inactivation of bacteria under both visible light and sunlight illumination compared with the widely used TiO2. Moreover, by using a 5 nm copper film on top of the FLV-MoS2 as a catalyst to facilitate electron–hole pair separation and promote the generation of ROS, the disinfection rate was increased a further sixfold. Here, we achieved water disinfection of >99.999% inactivation of bacteria in 20 min with a small amount of material (1.6 mg l–1) under simulated visible light.},
doi = {10.1038/nnano.2016.138},
journal = {Nature Nanotechnology},
number = ,
volume = 11,
place = {United States},
year = {Mon Aug 15 00:00:00 EDT 2016},
month = {Mon Aug 15 00:00:00 EDT 2016}
}
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    • Physical Chemistry Chemical Physics, Vol. 22, Issue 5
    • DOI: 10.1039/c9cp05728e

    Efficient photocatalytic reactions of Cr( vi ) reduction and ciprofloxacin and RhB oxidation with Sn( ii )-doped BiOBr
    journal, January 2019

    • Xu, Ling; Chen, Wen-qian; Ke, Shu-qiang
    • Catalysis Science & Technology, Vol. 9, Issue 21
    • DOI: 10.1039/c9cy01405e

    Water disinfection using Ag nanoparticle–CuO nanowire co-modified 3D copper foam nanocomposites in high flow under low voltages
    journal, January 2019

    • Yue, Longfei; Chen, Shougang; Wang, Shuting
    • Environmental Science: Nano, Vol. 6, Issue 9
    • DOI: 10.1039/c9en00455f

    Nanocarbon materials in water disinfection: state-of-the-art and future directions
    journal, January 2019

    • Wang, Liang; Yuan, Ziwen; Karahan, H. Enis
    • Nanoscale, Vol. 11, Issue 20
    • DOI: 10.1039/c9nr02007a

    Recent advances in nanoparticulate biomimetic catalysts for combating bacteria and biofilms
    journal, January 2019

    • Xiong, Xueqing; Huang, Yanyan; Lin, Changxu
    • Nanoscale, Vol. 11, Issue 46
    • DOI: 10.1039/c9nr05054j

    Facile synthesis of few-layer MoS 2 in MgAl-LDH layers for enhanced visible-light photocatalytic activity
    journal, January 2019

    • Zheng, Guoyuan; Wu, Caihong; Wang, Jilin
    • RSC Advances, Vol. 9, Issue 42
    • DOI: 10.1039/c9ra03858b

    Tuning the orientation of few-layer MoS 2 films using one-zone sulfurization
    journal, January 2019

    • Sojková, Michaela; Vegso, Karol; Mrkyvkova, Nada
    • RSC Advances, Vol. 9, Issue 51
    • DOI: 10.1039/c9ra06770a

    A bifunctional MoS 2 -based solar evaporator for both efficient water evaporation and clean freshwater collection
    journal, January 2019

    • Chen, Rong; Wang, Xun; Gan, Qimao
    • Journal of Materials Chemistry A, Vol. 7, Issue 18
    • DOI: 10.1039/c9ta02002k

    Photocatalytic Nanoheterostructures and Chemically Bonded Junctions Made by Solution-Based Approaches
    journal, September 2018

    • Šutka, Andris; Järvekülg, Martin; Gross, Kārlis A.
    • Critical Reviews in Solid State and Materials Sciences, Vol. 44, Issue 3
    • DOI: 10.1080/10408436.2018.1485549

    Facile high-yield synthesis of MoS 2 nanosheets with enhanced photocatalytic performance using ultrasound driven exfoliation technique
    journal, December 2019

    • Das, Subrata; Tama, Angkita Mistry; Dutta, Sagar
    • Materials Research Express, Vol. 6, Issue 12
    • DOI: 10.1088/2053-1591/ab57dd

    Eradication of Multidrug-Resistant Staphylococcal Infections by Light-Activatable Micellar Nanocarriers in a Murine Model
    journal, September 2017

    • Liu, Yong; van der Mei, Henny C.; Zhao, Bingran
    • Advanced Functional Materials, Vol. 27, Issue 44
    • DOI: 10.1002/adfm.201701974

    Van der Waals Epitaxial Growth of 2D Metallic Vanadium Diselenide Single Crystals and their Extra-High Electrical Conductivity
    journal, August 2017

    • Zhang, Zhepeng; Niu, Jingjing; Yang, Pengfei
    • Advanced Materials, Vol. 29, Issue 37
    • DOI: 10.1002/adma.201702359

    Recent Progress in Two-Dimensional Antimicrobial Nanomaterials
    journal, November 2018

    • Miao, Hui; Teng, Zhenyuan; Wang, Chengyin
    • Chemistry - A European Journal, Vol. 25, Issue 4
    • DOI: 10.1002/chem.201801983

    Graphene quantum dots coated on quartz sand as efficient and low-cost adsorbent for removal of Hg 2+ and Pb 2+ from aqueous solutions
    journal, May 2018

    • Mohammad-Rezaei, Rahim; Jaymand, Mehdi
    • Environmental Progress & Sustainable Energy, Vol. 38, Issue s1
    • DOI: 10.1002/ep.12911

    Two-dimensional nanomaterials for photocatalytic water disinfection: recent progress and future challenges: Two-dimensional nanomaterials for photocatalytic water disinfection
    journal, August 2018

    • Liu, Yue; Zeng, Xiangkang; Hu, Xiaoyi
    • Journal of Chemical Technology & Biotechnology, Vol. 94, Issue 1
    • DOI: 10.1002/jctb.5779

    ZnO Nanopillar Coated Surfaces with Substrate-Dependent Superbactericidal Property
    journal, February 2018

    Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges
    journal, January 2020

    DNA-modulated photosensitization: current status and future aspects in biosensing and environmental monitoring
    journal, February 2019

    Visible light-activated 1-D core-shell paramagnetic Fe-Ag@AgCl as an innovative method for photocatalytic inactivation of E. coli
    journal, January 2020

    • Cui, Yanping; Thathsarani, Nimesha; Peng, Liang
    • Environmental Science and Pollution Research, Vol. 27, Issue 11
    • DOI: 10.1007/s11356-020-07754-z

    Highly selective oxygen reduction to hydrogen peroxide on transition metal single atom coordination
    journal, September 2019

    Inorganic semiconductor biointerfaces
    journal, November 2018

    Fast detection and low power hydrogen sensor using edge-oriented vertically aligned 3-D network of MoS 2 flakes at room temperature
    journal, August 2017

    • Agrawal, A. V.; Kumar, R.; Venkatesan, S.
    • Applied Physics Letters, Vol. 111, Issue 9
    • DOI: 10.1063/1.5000825

    Three-dimensional TiO 2 /Au nanoparticles for plasmon enhanced photocatalysis
    journal, February 2018

    Plasmonic metal–semiconductor heterostructures for hot-electron-driven photochemistry
    journal, January 2020

    Recent Progress on Irradiation-Induced Defect Engineering of Two-Dimensional 2H-MoS2 Few Layers
    journal, February 2019

    • Zhao, Guang-Yi; Deng, Hua; Tyree, Nathaniel
    • Applied Sciences, Vol. 9, Issue 4
    • DOI: 10.3390/app9040678

    Bacteriostatic Effect of Piezoelectric Poly-3-Hydroxybutyrate and Polyvinylidene Fluoride Polymer Films under Ultrasound Treatment
    journal, January 2020

    • Vatlin, Ivan S.; Chernozem, Roman V.; Timin, Alexander S.
    • Polymers, Vol. 12, Issue 1
    • DOI: 10.3390/polym12010240

    Challenges and prospects of advanced oxidation water treatment processes using catalytic nanomaterials
    journal, August 2018

    Sunlight-mediated inactivation of health-relevant microorganisms in water: a review of mechanisms and modeling approaches
    text, January 2018

    A novel multi-flaw MoS 2 nanosheet piezocatalyst with superhigh degradation efficiency for ciprofloxacin
    journal, January 2018

    • Ma, Wei; Yao, Binghua; Zhang, Wen
    • Environmental Science: Nano, Vol. 5, Issue 12
    • DOI: 10.1039/c8en00944a

    Optimizing Hydrophobicity and Photocatalytic Activity of PDMS-Coated Titanium Dioxide
    journal, July 2019

    • Liu, Jie; Ye, Lijun; Wooh, Sanghyuk
    • ACS Applied Materials & Interfaces, Vol. 11, Issue 30
    • DOI: 10.1021/acsami.9b07490

    Defect engineered bioactive transition metals dichalcogenides quantum dots
    journal, January 2019

    Metal-organic frameworks with photocatalytic bactericidal activity for integrated air cleaning
    journal, May 2019

    Highly selective oxygen reduction to hydrogen peroxide on transition metal single atom coordination
    journal, September 2019

    Photobactericidal activity activated by thiolated gold nanoclusters at low flux levels of white light
    journal, March 2020

    Soluble Graphene Nanosheets for the Sunlight-Induced Photodegradation of the Mixture of Dyes and its Environmental Assessment
    journal, February 2019

    Bacteriostatic Effect of Piezoelectric Poly-3-Hydroxybutyrate and Polyvinylidene Fluoride Polymer Films under Ultrasound Treatment
    journal, January 2020

    • Vatlin, Ivan S.; Chernozem, Roman V.; Timin, Alexander S.
    • Polymers, Vol. 12, Issue 1
    • DOI: 10.3390/polym12010240
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