skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Facile and template-free preparation of {alpha}-MnO{sub 2} nanostructures and their enhanced adsorbability

Abstract

Graphical abstract: . The as-obtained ({alpha}-MnO{sub 2}) nanomaterials could act as an adsorbent to remove Conge red. More significantly, the nanomaterials are nontoxic and environmentally friendly though a biological MTT assay experiment. Plots of the capacity to remove Conge red with time by the commercial and new-prepared {alpha}-MnO{sub 2}. Inset shows absorption of Congo Red with time by new-prepared rod-clusters {alpha}-MnO{sub 2} (0, 10, 20, 40 and 60 min, respectively). Highlights: {yields} Nanostructured {alpha}-MnO{sub 2} was prepared through a template-free hydrothermal method. {yields} The obtained {alpha}-MnO{sub 2} could act as effective adsorbents to remove organic dyes. {yields} The obtained adsorbents are environmentally friendly. -- Abstract: In this paper, nanostructured MnO{sub 2} materials were successfully prepared through a simple and template-free hydrothermal method. X-ray diffraction pattern indicates that the as-prepared nanomaterials are {alpha}-MnO{sub 2}. Transmission Electron Microscopy and Scanning Electron Microscopy images demonstrate that nanostructured rod-clusters {alpha}-MnO{sub 2} could be evolved from the nanorods. Brunauer-Emmett-Teller (BET) surface area measurement was employed to characterize the surface property. Moreover, the as-obtained ({alpha}-MnO{sub 2}) nanomaterials could act as an efficient adsorbent to remove Congo Red and Methlylene Blue. More significantly, the nanomaterials are nontoxic and environmentally friendly via biological methylthiazolyldiphenyltetrazoliumbromide assay experiments. Its nontoxicmore » and enhanced adsorbability properties guarantee their safe applications in environmental protection and industrial aspects.« less

Authors:
; ; ; ;  [1];  [1]
  1. Center of Special Materials and Technology, Fudan University, 220 Handan Road, Shanghai 200433 (China)
Publication Date:
OSTI Identifier:
22212233
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 46; Journal Issue: 9; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION; ADSORBENTS; AZO DYES; CRYSTAL GROWTH; ENVIRONMENTAL PROTECTION; HYDROTHERMAL SYNTHESIS; MANGANESE OXIDES; NANOSTRUCTURES; SCANNING ELECTRON MICROSCOPY; SULFONIC ACIDS; SURFACE AREA; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Ma, Hongwei, Shen, Jianfeng, Shi, Min, Yan, Bo, Li, Na, and Ye, Mingxin, E-mail: mxye@fudan.edu.cn. Facile and template-free preparation of {alpha}-MnO{sub 2} nanostructures and their enhanced adsorbability. United States: N. p., 2011. Web. doi:10.1016/J.MATERRESBULL.2011.05.003.
Ma, Hongwei, Shen, Jianfeng, Shi, Min, Yan, Bo, Li, Na, & Ye, Mingxin, E-mail: mxye@fudan.edu.cn. Facile and template-free preparation of {alpha}-MnO{sub 2} nanostructures and their enhanced adsorbability. United States. doi:10.1016/J.MATERRESBULL.2011.05.003.
Ma, Hongwei, Shen, Jianfeng, Shi, Min, Yan, Bo, Li, Na, and Ye, Mingxin, E-mail: mxye@fudan.edu.cn. Thu . "Facile and template-free preparation of {alpha}-MnO{sub 2} nanostructures and their enhanced adsorbability". United States. doi:10.1016/J.MATERRESBULL.2011.05.003.
@article{osti_22212233,
title = {Facile and template-free preparation of {alpha}-MnO{sub 2} nanostructures and their enhanced adsorbability},
author = {Ma, Hongwei and Shen, Jianfeng and Shi, Min and Yan, Bo and Li, Na and Ye, Mingxin, E-mail: mxye@fudan.edu.cn},
abstractNote = {Graphical abstract: . The as-obtained ({alpha}-MnO{sub 2}) nanomaterials could act as an adsorbent to remove Conge red. More significantly, the nanomaterials are nontoxic and environmentally friendly though a biological MTT assay experiment. Plots of the capacity to remove Conge red with time by the commercial and new-prepared {alpha}-MnO{sub 2}. Inset shows absorption of Congo Red with time by new-prepared rod-clusters {alpha}-MnO{sub 2} (0, 10, 20, 40 and 60 min, respectively). Highlights: {yields} Nanostructured {alpha}-MnO{sub 2} was prepared through a template-free hydrothermal method. {yields} The obtained {alpha}-MnO{sub 2} could act as effective adsorbents to remove organic dyes. {yields} The obtained adsorbents are environmentally friendly. -- Abstract: In this paper, nanostructured MnO{sub 2} materials were successfully prepared through a simple and template-free hydrothermal method. X-ray diffraction pattern indicates that the as-prepared nanomaterials are {alpha}-MnO{sub 2}. Transmission Electron Microscopy and Scanning Electron Microscopy images demonstrate that nanostructured rod-clusters {alpha}-MnO{sub 2} could be evolved from the nanorods. Brunauer-Emmett-Teller (BET) surface area measurement was employed to characterize the surface property. Moreover, the as-obtained ({alpha}-MnO{sub 2}) nanomaterials could act as an efficient adsorbent to remove Congo Red and Methlylene Blue. More significantly, the nanomaterials are nontoxic and environmentally friendly via biological methylthiazolyldiphenyltetrazoliumbromide assay experiments. Its nontoxic and enhanced adsorbability properties guarantee their safe applications in environmental protection and industrial aspects.},
doi = {10.1016/J.MATERRESBULL.2011.05.003},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 9,
volume = 46,
place = {United States},
year = {2011},
month = {9}
}