%0 Journal Article
%T Ag/HNb3O8纳米片的合成及其光催化性能<br>Synthesis of Ag/HNb3O8 Nanosheets and Its Photocatalytic Performance
%A 李欣欣
%A 李鑫月
%A 邓磊
%A 杨新丽
%J Journal of Advances in Physical Chemistry
%P 112-121
%@ 2168-6130
%D 2023
%I Hans Publishing
%R 10.12677/JAPC.2023.122013
%X 以商业NbCl<sub>5</sub>为铌源，通过水热法合成HNb<sub>3</sub>O<sub>8</sub>纳米片，然后分别采用光沉积和浸渍的方法制备了Ag/HNb<sub>3</sub>O<sub>8-pp</sub> (光沉积)和Ag/HNb<sub>3</sub>O<sub>8</sub> (浸渍方法)光催化剂，对合成的两种催化剂进行了详细的表征，并研究其光催化析氢活性。XRD、FT-IR、SEM和TEM的表征结果说明我们成功合成了负载Ag的HNb<sub>3</sub>O<sub>8</sub>纳米片催化剂。UV-vis-NIR分析了各催化剂的能带结构。结果表明：由于Ag的引入，Ag/HNb<sub>3</sub>O<sub>8</sub>催化剂表现出了较强的LSPR效应，对可见光和近红外光的吸收得到了增强。光催化测试的结果与表征结果一致，浸渍方法制备的Ag/HNb<sub>3</sub>O<sub>8</sub>表现出了较强的析氢速率(889.7 μmol？g<sup>？1</sup>？h<sup>？1</sup>)，是纯HNb<sub>3</sub>O<sub>8</sub>的31.3倍(28.4 μmol？g<sup>？1</sup>？h<sup>？1</sup>)。<br />
HNb<sub>3</sub>O<sub>8</sub> nanosheets composites were synthesized by a one-step hydrothermal method using commercial NbCl<sub>5</sub> as niobium source. Ag/HNb<sub>3</sub>O<sub>8-PP</sub> and Ag/HNb<sub>3</sub>O<sub>8</sub> photocatalysts were prepared by means of photo-deposition and dipping with a certain proportion of Ag on HNb<sub>3</sub>O<sub>8</sub> nanosheets. Besides, the results of XRD, FT-IR, SEM and TEM show that the Ag loaded HNb<sub>3</sub>O<sub>8</sub> nanosheets were successfully synthesized. The band structures of photocatalyst were determined by UV-vis-NIR. Because of loading Ag atom, the more absorption might be associated with LSPR. The photocatalytic tests are consistent with the characterization. The optimal Ag/HNb<sub>3</sub>O<sub>8</sub> displays the highest hydrogen evolution rate (889.7 μmol？g<sup>？1</sup>？h<sup>？1</sup>), which is 31.3 times of that for pure HNb<sub>3</sub>O<sub>8</sub> (28.4 μmol？g<sup>？1</sup>？h<sup>？1</sup>).
%K HNb3O8纳米片，Ag，光催化，氢气<br>HNb3O8 Nanosheets
%K Ag
%K Photocatalysis
%K Hydrogen
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=65706