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TEM images of as-prepared rGO/ZnO nanohybrids obtained with different concentrations of Zn2+: (a) 0.0023 M, (b) 0.0069 M and (c) 0.0115 M, (d) EDS pattern of the rGO/ZnO nanohybrids. Reprinted from [820], Copyright (2012), with permission from Elsevier [OR APPLICABLE SOCIETY COPYRIGHT OWNER]. All rights reserved. In order to re-use permission must be obtained from the rightsholder.
