Ultrasonic-assisted synthesis Zn0.78Cd0.22S/Bi2MoO6 heterojunction to improve photocatalytic performance for hexavalent chromium removal and hydrogen peroxide production
Ultrasonic-assisted synthesis Zn0.78Cd0.22S/Bi2MoO6 heterojunction to improve photocatalytic performance for hexavalent chromium removal and hydrogen peroxide production
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超声波辅助合成 Zn0.78Cd0.22S/Bi2MoO6 异质结以提高六价铬去除和过氧化氢生产的光催化性能
DOI：
10.1016/j.colsurfa.2022.129363
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发表时间：
2022-05
期刊：
影响因子：
--
通讯作者：
Xiaoheng Liu
中科院分区：
文献类型：
--
作者：
Yue Mao;Xiaoheng Liu
由于双氧水的广泛应用，世界各地对双氧水的需求量日益增加。然而传统的过氧化氢制备方法存在能耗高、收率低等诸多不可避免的缺点，而且反应过程中的副产物对环境危害极大。因此，寻找新的高效、环保的过氧化氢生产方法迫在眉睫。首次将稳定半导体Zn0.78Cd0.22S与铋基材料Bi2MoO6结合形成异质结。异质结光催化剂Zn0.78Cd0.22S/Bi2MoO6主要应用于废水中重金属六价铬的处理和光催化双氧水生产。异质结的成功构建大大降低了光生电子与光生空穴的复合率，导致Zn0.78Cd0.22S导带中有更多电子还原氧生成过氧化氢并将Cr6+还原为Cr3+，Bi2MoO6价带中有更多光生空穴氧化水分子得到过氧化氢。此外，与结合Zn0.78Cd0.22S和Bi2MoO6的水热法相比，这里使用的超声波方法阻止了Bi2S3的合成。
Due to the wide application of hydrogen peroxide, the demand for hydrogen peroxide is increasing day by day all over the world. However, the traditional preparation method of hydrogen peroxide has many inevitable disadvantages, such as high energy consumption, low yield, and the by-products during the reaction process have great harm to the environment. So, it is emergent to search for new efficient and environmentally friendly ways to produce hydrogen peroxide. The stable semiconductor Zn0.78Cd0.22S and bismuth-based material Bi2MoO6were combined to form heterojunction for the first time. The heterojunction photocatalyst Zn0.78Cd0.22S/Bi2MoO6is mainly applied to the treatment of heavy metal hexavalent chromium in wastewater and photocatalytic hydrogen peroxide production. The successful construction of heterojunction greatly reduces the recombination rate of photogenerated electrons and photogenerated holes, resulting in more electrons reducing oxygen to generate hydrogen peroxide and reducing Cr6+to Cr3+in the conduction band of Zn0.78Cd0.22S, and more photogenerated holes oxidizing water molecules to obtain hydrogen peroxide in the valence band of Bi2MoO6. Furthermore, compared with the hydrothermal method to combine Zn0.78Cd0.22S and Bi2MoO6, the ultrasonic method used here prevents the synthesis of Bi2S3.
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影响因子：
6.7
作者：
Yabin Jiang;Zongzhao Sun;Qianwen Chen;C. Cao;Yun Zhao;Wensheng Yang;Lei Zeng;Limin Huang
通讯作者：
Yabin Jiang;Zongzhao Sun;Qianwen Chen;C. Cao;Yun Zhao;Wensheng Yang;Lei Zeng;Limin Huang
影响因子：
5.8
作者：
Chunyan Du;Luyue Yang;Shiyang Tan;Jiahao Song;Zhuo Zhang;Shitao Wang;Ying Xiong;Guanlong Yu
通讯作者：
Chunyan Du;Luyue Yang;Shiyang Tan;Jiahao Song;Zhuo Zhang;Shitao Wang;Ying Xiong;Guanlong Yu
DOI：
10.1016/j.colsurfa.2020.124778
发表时间：
2020-10
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
--
作者：
Min Zhang;Hongfei Yin;Jiacheng Yao;M. Arif;Bocheng Qiu;Pengyan Li;Xiaoheng Liu
通讯作者：
Min Zhang;Hongfei Yin;Jiacheng Yao;M. Arif;Bocheng Qiu;Pengyan Li;Xiaoheng Liu
影响因子：
8.6
作者：
C. Reddy;I. N. Reddy;K. Ravindranadh;K. R. Reddy;Dongseob Kim;J. Shim
通讯作者：
C. Reddy;I. N. Reddy;K. Ravindranadh;K. R. Reddy;Dongseob Kim;J. Shim
影响因子：
9.9
作者：
Huidong Shen;F. Fu;Wenwen Xue;Xiaoxia Yang;S. Ajmal;Yanzhong Zhen;Li Guo;Danjun Wang;R. Chi-R.
通讯作者：
Huidong Shen;F. Fu;Wenwen Xue;Xiaoxia Yang;S. Ajmal;Yanzhong Zhen;Li Guo;Danjun Wang;R. Chi-R.