1
|
Zheng J, Gao Y, Wang B, Guan Z, Yin G, Zheng H, Li Y, Cao X, Zheng S. Constructing hollow core-shell Z-scheme heterojunction CdS@CoTiO 3 nanorods for enhancing the photocatalytic degradation of 2,4-DCP and TC. Phys Chem Chem Phys 2024; 26:14194-14204. [PMID: 38713135 DOI: 10.1039/d4cp01266f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Constructing Z-scheme heterojunctions incorporating an exquisite hollow structure is an effective performance regulation strategy for the realization of high quantum efficiency and a strong redox ability over photocatalysts. Herein, we report the delicate design and preparation of a core-shell hollow CdS@CoTiO3 Z-scheme heterojunction with a CdS nanoparticle (NP)-constructed outer shell supported on a CoTiO3 nanorod (NR) inner shell. The in situ growth synthetic method led to a tightly connected interface for the heterojunction between CdS and CoTiO3, which shortened the transport distance of photoinduced charges from the interface to the surface. The promoted charge carrier separation efficiency and the retained strong redox capacity caused by the Z-scheme photoinduced charge-transfer mechanism were mainly responsible for the boosted photocatalytic performance. Additionally, the well-designed core-shell structure afforded a larger interfacial area by the multiple direction contact between CdS and CoTiO3, ensuring sufficient channels for efficient charge transfer, and thus further boosting the photocatalytic activity. As an efficient photocatalyst, the optimized CdS@CoTiO3 nanohybrids displayed excellent 2,4-dichlorophenol (2,4-DCP) and tetracycline (TC) degradation efficiencies of 91.3% and 91.8%, respectively. This study presents a Z-scheme heterojunction based on ecofriendly CoTiO3, which could be valuable for the development of metal perovskite photocatalysts for application in environmental remediation, and also demonstrated the tremendous potential of integrating a Z-scheme heterojunction with the morphology design of photocatalyts.
Collapse
Affiliation(s)
- Jianhua Zheng
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, China
- College of Light Industry and Textiles, Qiqihar University, Qiqihar, Heilongjiang 161006, China
- Engineering Research Center of Flax Processing Technology (Qiqihar University), Ministry of Education, Qiqihar, Heilongjiang 161006, P. R. China
| | - Yiming Gao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, China
| | - Bingbing Wang
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, China
| | - Zhenping Guan
- College of Mechanical and Electrical Engineering, Qiqihar University, Qiqihar 161000, China
| | - Guangming Yin
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, China
| | - Heshan Zheng
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, China
| | - Yong Li
- College of Light Industry and Textiles, Qiqihar University, Qiqihar, Heilongjiang 161006, China
| | - Xiangyu Cao
- College of Light Industry and Textiles, Qiqihar University, Qiqihar, Heilongjiang 161006, China
| | - Shunji Zheng
- College of Light Industry and Textiles, Qiqihar University, Qiqihar, Heilongjiang 161006, China
| |
Collapse
|
2
|
Rapid room-temperature mechanosynthesis tensile-strained Bi3O4Br for robust photomineralization. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
|
3
|
Bi12TiO20-TiO2 S‑scheme heterojunction for improved photocatalytic NO removal: Experimental and DFT insights. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
|
4
|
Arumugam S, Bavani T, Preeyanghaa M, Alaswad SO, Neppolian B, Madhavan J, Murugesan S. A facile synthesis of visible light driven Ni 3V 2O 8 nano-cube/BiVO 4 nanorod composite photocatalyst with enhanced photocatalytic activity towards degradation of acid orange 7. CHEMOSPHERE 2022; 308:136100. [PMID: 36064027 DOI: 10.1016/j.chemosphere.2022.136100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 08/10/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Photocatalysis is one of the promising method to degrade harmful organic pollutants under visible light exposure. In this work, a novel Ni3V2O8/BiVO4 nanocomposite has been prepared by one-pot hydrothermal method, and investigated through X-ray diffraction, FT-IR, UV-visible diffuse reflectance spectroscopy, scanning and transmission electron microscopy and photoluminescence techniques. Subsequently, the photocatalytic performance of Ni3V2O8/BiVO4 nanocomposite has been examined by degrading AO7 under visible light illumination. The photocatalytic efficiency of the optimized 1:2 ratio of Ni3V2O8/BiVO4 nanocomposite photocatalyst is found to be 87% with a rate constant value of 0.03387 min-1 which are higher than those of other prepared photocatalysts. This nanocomposite exhibits excellent stability even after 3 three cycles, and shows 1.135- and 1.17-times higher photocurrent intensity than pure BiVO4 and Ni3V2O8 respectively. The mechanism for the degradation of AO7 over Ni3V2O8/BiVO4 nanocomposite photocatalyst has been proposed.
Collapse
Affiliation(s)
- Swaminathan Arumugam
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Thirugnanam Bavani
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Mani Preeyanghaa
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, Chennai, India
| | - Saleh O Alaswad
- Nuclear Science Research Institute (NSRI), King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi Arabia
| | - Bernaurdshaw Neppolian
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, 603203, Chennai, India
| | - Jagannathan Madhavan
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India.
| | - Sepperumal Murugesan
- Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625021, India
| |
Collapse
|