Title:
IN-SITU SYNTHESIZED ALL-SOLID-STATE Z-TYPE HETEROSTRUCTURED PHOTOCATALYST AND PREPARATION METHOD THEREFOR, AND APPLICATION IN PHOTOELECTROCATALYTIC SYNTHESIS OF H2O2
Document Type and Number:
WIPO Patent Application WO/2022/198766
Kind Code:
A1
Abstract:
The present invention provides a 1T/2H-MoSe2@TiO2 nanocomposite, comprising a TiO2 nanorod and a MoSe2 nanoparticle composited on the TiO2 nanorod; the MoSe2 nanoparticle comprises a mixed-phase MoSe2 nanoparticle; the mixed phase comprises a 1T metal phase and a 2H semiconductor phase. The composite provided by the present invention is an all-solid-state Z-type composite system photocatalyst, a small part of 2H-MoSe2 is converted into 1T-MoSe2, the synthesis of the 1T phase serves as a bridge for electron transfer, and separation of electron-hole pairs is further promoted; thus, the photoelectrocatalytic performance of the constructed photoelectrocatalytic system can be greatly improved, thereby increasing the yield of H2O2, and facilitating production of H2O2. Moreover, the preparation method provided by the present invention is simple, mild in condition, controllable in process, beneficial to industrial implementation, and wide in practical prospect.
Inventors:
ZHANG XUDONG (CN)
LIN SHIWEI (CN)
CHEN HANDE (CN)
FU JIAN (CN)
ZHOU YILONG (CN)
CHEN BAO (CN)
LIN ZHENGXI (CN)
WANG LINGZHUAN (CN)
LIN HUIYUAN (CN)
FU ZHIHAO (CN)
HUANG XIUCAI (CN)
LIN SHIWEI (CN)
CHEN HANDE (CN)
FU JIAN (CN)
ZHOU YILONG (CN)
CHEN BAO (CN)
LIN ZHENGXI (CN)
WANG LINGZHUAN (CN)
LIN HUIYUAN (CN)
FU ZHIHAO (CN)
HUANG XIUCAI (CN)
Application Number:
PCT/CN2021/093269
Publication Date:
September 29, 2022
Filing Date:
May 12, 2021
Export Citation:
Assignee:
HAINAN UNICAN SCIENCE AND TECH INNOVATION INSTITUTE CO LTD (CN)
International Classes:
C25B1/55; C25B1/30
Foreign References:
| CN105833886A | 2016-08-10 |
Other References:
LI HONGXIA, CHAO YANG,XIAOYANG WANG,JUN ZHANG,JUNHUA XI,GANG DU,ZHENGUO JI: "Mixed 3D/2D dimensional TiO2 nanoflowers/MoSe2 nanosheets for enhanced photoelectrochemical hydrogen generation", J. AM. CERAM. SOC., vol. 103, no. 2, 18 September 2019 (2019-09-18), pages 1187 - 1196, XP055970987, DOI: 10.1111/jace.16807
LIU DAOMENG, WANG DAQUAN, JING XUNAN, ZHAO XIAOPING, XI DUO, DANG DONGFENG, MENG LINGJIE: "Continuous phase regulation of MoSe 2 from 2H to 1T for the optimization of peroxidase-like catalysis", JOURNAL OF MATERIALS CHEMISTRY. B, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 8, no. 30, 5 August 2020 (2020-08-05), GB , pages 6451 - 6458, XP055970991, ISSN: 2050-750X, DOI: 10.1039/D0TB00115E
ZHENG XUTONG, YANG LIMING, LI YAOBANG, YANG LIXIA, LUO SHENGLIAN: "Direct Z-scheme MoSe2 decorating TiO2 nanotube arrays photocatalyst for water decontamination", ELECTROCHIMICA ACTA, ELSEVIER, AMSTERDAM, NL, vol. 298, 1 March 2019 (2019-03-01), AMSTERDAM, NL , pages 663 - 669, XP055970993, ISSN: 0013-4686, DOI: 10.1016/j.electacta.2018.12.130
WANG YI, XIAO XINYAN, CHEN JIAYI, LU MINGLI, ZENG XINGYE: "1T phase boosted MoSe2/pg-C3N4 with Z-scheme heterojunction for enhanced photocatalytic degradation of contaminants", APPLIED SURFACE SCIENCE, ELSEVIER, AMSTERDAM , NL, vol. 510, 1 April 2020 (2020-04-01), Amsterdam , NL , pages 145341, XP055970996, ISSN: 0169-4332, DOI: 10.1016/j.apsusc.2020.145341
LIU DAOMENG, WANG DAQUAN, JING XUNAN, ZHAO XIAOPING, XI DUO, DANG DONGFENG, MENG LINGJIE: "Continuous phase regulation of MoSe 2 from 2H to 1T for the optimization of peroxidase-like catalysis", JOURNAL OF MATERIALS CHEMISTRY. B, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 8, no. 30, 5 August 2020 (2020-08-05), GB , pages 6451 - 6458, XP055970991, ISSN: 2050-750X, DOI: 10.1039/D0TB00115E
ZHENG XUTONG, YANG LIMING, LI YAOBANG, YANG LIXIA, LUO SHENGLIAN: "Direct Z-scheme MoSe2 decorating TiO2 nanotube arrays photocatalyst for water decontamination", ELECTROCHIMICA ACTA, ELSEVIER, AMSTERDAM, NL, vol. 298, 1 March 2019 (2019-03-01), AMSTERDAM, NL , pages 663 - 669, XP055970993, ISSN: 0013-4686, DOI: 10.1016/j.electacta.2018.12.130
WANG YI, XIAO XINYAN, CHEN JIAYI, LU MINGLI, ZENG XINGYE: "1T phase boosted MoSe2/pg-C3N4 with Z-scheme heterojunction for enhanced photocatalytic degradation of contaminants", APPLIED SURFACE SCIENCE, ELSEVIER, AMSTERDAM , NL, vol. 510, 1 April 2020 (2020-04-01), Amsterdam , NL , pages 145341, XP055970996, ISSN: 0169-4332, DOI: 10.1016/j.apsusc.2020.145341
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF: