Document Detail


Well-crystalline porous ZnO-SnO2 nanosheets: An effective visible-light driven photocatalyst and highly sensitive smart sensor material.
MedLine Citation:
PMID:  25281131     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This work demonstrates the synthesis and characterization of porous ZnO-SnO2 nanosheets prepared by the simple and facile hydrothermal method at low-temperature. The prepared nanosheets were characterized by several techniques which revealed the well-crystallinity, porous and well-defined nanosheet morphology for the prepared material. The synthesized porous ZnO-SnO2 nanosheets were used as an efficient photocatalyst for the photocatalytic degradation of highly hazardous dye, i.e., direct blue 15 (DB 15), under visible-light irradiation. The excellent photocatalytic degradation of prepared material towards DB 15 dye could be ascribed to the formation of ZnO-SnO2 heterojunction which effectively separates the photogenerated electron-hole pairs and possess high surface area. Further, the prepared porous ZnO-SnO2 nanosheets were utilized to fabricate a robust chemical sensor to detect 4-nitrophenol in aqueous medium. The fabricated sensor exhibited extremely high sensitivity of ~1285.76µA/mmolL(-1)cm(-2) and an experimental detection limit of 0.078mmolL(-1) with a linear dynamic range of 0.078-1.25mmolL(-1). The obtained results confirmed that the prepared porous ZnO-SnO2 nanosheets are potential material for the removal of organic pollutants under visible light irradiation and efficient chemical sensing applications.
Authors:
Randeep Lamba; Ahmad Umar; S K Mehta; Sushil Kumar Kansal
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-8-6
Journal Detail:
Title:  Talanta     Volume:  131C     ISSN:  1873-3573     ISO Abbreviation:  Talanta     Publication Date:  2015 Jan 
Date Detail:
Created Date:  2014-10-4     Completed Date:  -     Revised Date:  2014-10-5    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  -    
Other Details:
Languages:  ENG     Pagination:  490-498     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier B.V. All rights reserved.
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