Preparation of phosphorus-doped tungsten trioxide nanomaterials and their photocatalytic performances
Preparation of phosphorus-doped tungsten trioxide nanomaterials and their photocatalytic performances
复制标题
磷掺杂三氧化钨纳米材料的制备及其光催化性能
DOI：
10.1080/09593330.2020.1745292
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发表时间：
2020-03
影响因子：
2.8
通讯作者：
Xiaochen Li
中科院分区：
文献类型：
--
作者：
Jiayu Sun;Bihan Li;Qi Wang;Ping Zhang;Yulei Zhang;Li Gao;Xiaochen Li
摘要本研究采用水热法和后煅烧法相结合的方法成功合成了高效稳定的磷掺杂三氧化钨光催化剂。对所制备的WO 3和P-WO 3样品的微观结构、形貌和光学性能进行了表征。结果表明，P以五价氧化态（P5+）均匀掺杂到WO 3晶格中。形成了能接受光电子的载流子陷阱。此外，带隙能量从2.4减小到2.33 eV。 通过光催化降解甲基蓝（MB）的实验，考察了不同磷浓度下制备的P-WO 3样品的光催化性能。结果表明，6%-P-WO 3样品的光催化活性最高，120 min内MB降解率可达96%，比纯WO 3提高了4倍以上。 还使用来自两个国内污水处理厂的样品评价了所制备的P-WO 3的实用性。P-WO 3在处理低浓度有机物的真实的废水中具有良好的光降解性能。P-WO 3的光致发光主要是由羟基自由基（·OH）和光生空穴（h+）的产生引发的。图形摘要
ABSTRACT In this study, a highly efficient and stable phosphorus-doped Tungsten trioxide (P-WO3) photocatalyst was successfully synthesized using a combination of hydrothermal and post-calcination method. The microstructures, morphologies and optical properties of the obtained WO3 and P-WO3 samples were characterized. The results showed that P was uniformly doped into the WO3 lattice in a pentavalent-oxidation state (P5+). The charge carrier traps were also formed, which could accept the photoelectrons. Furthermore, the band gap energy was reduced from 2.4 to 2.33 ev. The photocatalytic performance of the obtained P-WO3 samples with different P concentrations were then tested by photocatalytic degradation of methyl blue (MB). It was found that the 6%-P-WO3 sample exhibited the highest photocatalytic activity, with 96% of MB being able to be degraded within 120 min, which was more than four times higher than that of the pure WO3. The practicality of the prepared P-WO3 was also evaluated using samples from two domestic wastewater treatment plants. The P-WO3 had a high photodegradation performance in treating low concentration of organic matters from real wastewater. The photocatalysis of P-WO3 could be mainly initiated by the production of hydroxyl radical (·OH) and photogenerated hole (h+). GRAPHICAL ABSTRACT
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影响因子：
22.1
作者：
H. Ozaki;Naho Fujimoto;S. Iwamoto;M. Inoue
通讯作者：
H. Ozaki;Naho Fujimoto;S. Iwamoto;M. Inoue
影响因子：
8.6
作者：
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影响因子：
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影响因子：
7.3
作者：
Xiao Zhou;Jiang Wu;Qifen Li;T. Zeng;Zheng Ji;P. He;W. Pan;Xuemei Qi;Chengyao Wang
通讯作者：
Xiao Zhou;Jiang Wu;Qifen Li;T. Zeng;Zheng Ji;P. He;W. Pan;Xuemei Qi;Chengyao Wang
影响因子：
--
作者：
Shi, Qing;Yang, Dong;Li, Jian
通讯作者：
Li, Jian