Characterization of nano-rod ZnWO4 prepared by surfactant-assisting solvothermal reaction

Nano-rod ZnWO4 was solvothermally prepared by the reaction of Zn(CH3COO)22H2O with Na2(WO 4).2H2O in water at 150-200°C using the pH of 5.0, 7.0, 9.0 and 12.0 for 24, 48 and 72 h. N-cetyl pyridinium chloride was used as a surfactant. By using XRD, SAED, EDX and TEM, nano-rod ZnWO4 containing Zn, W a...

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Bibliographic Details
Main Authors: Thongtem T., Katunyoo S., Thongtem S.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-38349166469&partnerID=40&md5=17ec1005ab74c340936b07f97c896b77
http://cmuir.cmu.ac.th/handle/6653943832/5166
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Institution: Chiang Mai University
Language: English
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Summary:Nano-rod ZnWO4 was solvothermally prepared by the reaction of Zn(CH3COO)22H2O with Na2(WO 4).2H2O in water at 150-200°C using the pH of 5.0, 7.0, 9.0 and 12.0 for 24, 48 and 72 h. N-cetyl pyridinium chloride was used as a surfactant. By using XRD, SAED, EDX and TEM, nano-rod ZnWO4 containing Zn, W and O was detected. The pH values can play a role in the length of the nano-rods and their crystallinities. FTIR revealed the presence of Zn-O-W, W-O and Zn-O stretching vibrations of the products. Their photoluminescent (PL) spectra are similar and the wavelengths at the highest intensities were detected over the range of 445-450 nm.