Efficient photocatalytic degradation of gaseous acetaldehyde over ground Rh-Sb co-doped SrTiO(3) under visible light irradiation.
Efficient photocatalytic degradation of gaseous acetaldehyde over ground Rh-Sb co-doped SrTiO(3) under visible light irradiation.
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DOI：
10.1039/c7ra11337d
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发表时间：
2018-01-29
期刊：
影响因子：
3.9
通讯作者：
Nakata, Kazuya
中科院分区：
文献类型：
--
作者：
Yamaguchi, Yuichi;Usuki, Sho;Yamatoya, Kenji;Suzuki, Norihiro;Katsumata, Ken-ichi;Terashima, Chiaki;Fujishima, Akira;Kudo, Akihiko;Nakata, Kazuya
采用固相反应法制备了Rh-Sb共掺杂SrTiO 3（STO：Rh，Sb）光催化剂，并采用球磨法制备了可见光响应光催化剂。所制备的STO：Rh，Sb具有较大的比表面积，对乙醛具有良好的光催化降解性能。STO：Rh，Sb研磨60 min的光催化活性超过STO：Rh研磨60 min的光催化剂（未掺杂锑的光催化剂），表明掺杂锑在抑制STO：Rh，Sb中作为复合中心的Rh 4+方面起着重要作用。此外，STO：Rh，Sb研磨60 min的光催化性能持续3个循环，证实了光催化剂的化学稳定性。因此，地表STO：Rh，Sb具有应用于可见光照射下环境修复的潜力。采用固相反应法制备了Rh-Sb共掺杂SrTiO 3（STO：Rh，Sb）光催化剂，并采用球磨法制备了可见光响应光催化剂。
A visible-light-responsive Rh–Sb co-doped SrTiO3 photocatalyst (STO:Rh,Sb) via a solid-state reaction was successfully developed, following pulverization by using ball-milling. The prepared STO:Rh,Sb exhibited a large surface area and showed efficient photocatalytic degradation of acetaldehyde. The photocatalytic activity of STO:Rh,Sb ground for 60 min exceeded that of STO:Rh ground for 60 min (photocatalyst doped without antimony), indicating that doped antimony plays an important role in suppressing the Rh4+, which works as a recombination center, in STO:Rh,Sb. Furthermore, the photocatalytic performance of STO:Rh,Sb ground for 60 min was sustained over 3 cycles, confirming the chemical stability of the photocatalyst. Therefore, ground STO:Rh,Sb has the potential to be applied to environmental remediation under visible light irradiation. A visible-light-responsive Rh–Sb co-doped SrTiO3 photocatalyst (STO:Rh,Sb) via a solid-state reaction was successfully developed, following pulverization by using ball-milling.
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