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Abstract:
以TiN为钛源和氮源,采用水热法分别以H2SO4、HCl、HNO3为介质合成了N-TiO2纳米粉末,研究了介质及水热反应温度对N-TiO2晶型、形貌、粒径及光催化性能的影响。SEM、XRD表明,H2SO4为介质得到粒状锐钛矿N-TiO2,HCl、HNO3为介质得到棒状金红石N-TiO2,粒径d(HCl)>d(HNO3)>d(H2SO4),相同介质中,粒径随反应温度的升高而增大。XPS、HRTEM表明,N元素以O—Ti—N键形式掺杂,使得TiO2晶格间距变大。UV-Vis表明,N掺杂降低了TiO2的禁带宽度,感光范围拓展到可见光区。可见光催化降解实验表明,催化效率η(H2SO4)>η(HNO3)...
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功能材料
ISSN: 1001-9731
CN: 50-1099/TH
Year: 2015
Issue: 07
Volume: 46
Page: 7148-7152
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: