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Ni J, Lei J, Wang Z, Huang L, Zhu H, Liu H, Hu F, Qu T, Yang H, Yang H, Gong C. The Ultrahigh Adsorption Capacity and Excellent Photocatalytic Degradation Activity of Mesoporous CuO with Novel Architecture. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:142. [PMID: 36616052 PMCID: PMC9824582 DOI: 10.3390/nano13010142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/24/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
In this paper, mesoporous CuO with a novel architecture was synthesized through a conventional hydrothermal approach followed by a facile sintering procedure. HR-TEM analysis found that mesoporous CuO with an interconnected pore structure has exposed high-energy crystal planes of (002) and (200). Theoretical calculations indicated that the high-energy crystal planes have superior adsorption capacity for H+ ions, which is critical for the excellent adsorption and remarkable photocatalytic activity of the anionic dye. The adsorption capacity of CuO to methyl orange (MO) at 0.4 g/L was approximately 30% under adsorption equilibrium conditions. We propose a state-changing mechanism to analyze the synergy and mutual restraint relation among the catalyst CuO, H+ ions, dye and H2O2. According to this mechanism, the degradation rate of MO can be elevated 3.5 times only by regulating the MO ratio in three states.
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Affiliation(s)
- Jing Ni
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
| | - Jianfei Lei
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Zhaowu Wang
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Lanlan Huang
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
- School of Materials Science and Engineering, Hubei University, Wuhan 430000, China
| | - Hang Zhu
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
| | - Hai Liu
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
| | - Fuqiang Hu
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
| | - Ting Qu
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
| | - Huiyu Yang
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
| | - Haiyang Yang
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
| | - Chunli Gong
- School of Chemistry and Material Science, Hubei Engineering University, Xiaogan 432000, China
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Chen LT, Liao UH, Chang JW, Lu SY, Tsai DH. Aerosol-Based Self-Assembly of a Ag-ZnO Hybrid Nanoparticle Cluster with Mechanistic Understanding for Enhanced Photocatalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5030-5039. [PMID: 29606007 DOI: 10.1021/acs.langmuir.8b00577] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A gas-phase-controlled synthetic approach is demonstrated to fabricate Ag-ZnO hybrid nanostructure as a high-performance catalyst for photodegradation of water pollutants. The degradation of rhodamine B (RhB) was used as representative, which were tested and evaluated with respect to the environmental pH and the presence of dodecyl sulfate corona on the surface of the catalyst. The results show that a raspberry-structure Ag-ZnO hybrid nanoparticle cluster was successfully synthesized via gas-phase evaporation-induced self-assembly. The photodegradation activity increased significantly (20×) by using the Ag-ZnO hybrid nanoparticle cluster as a catalyst. A surge of catalytic turnover frequency of ZnO nanoparticle cluster (>20×) was observed through the hybridization with silver nanoparticles. The dodecyl sulfate corona increased the photocatalytic activity of the Ag-ZnO hybrid nanoparticle cluster, especially at the acidic and neutral pH environments (maximum 6×), and the enhancement in catalytic activity was attributed to the improved colloidal stability of ZnO-based nanoparticle cluster under the interaction with RhB. Our work provides a generic route of facile synthesis of the Ag-ZnO hybrid nanoparticle cluster with a mechanistic understanding of the interface reaction for enhancing photocatalysis toward the degradation of water pollutants.
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Affiliation(s)
- Li-Ting Chen
- Department of Chemical Engineering , National Tsing Hua University , Hsinchu , Taiwan , ROC
| | - Ung-Hsuan Liao
- Department of Chemical Engineering , National Tsing Hua University , Hsinchu , Taiwan , ROC
| | - Je-Wei Chang
- Department of Chemical Engineering , National Tsing Hua University , Hsinchu , Taiwan , ROC
| | - Shih-Yuan Lu
- Department of Chemical Engineering , National Tsing Hua University , Hsinchu , Taiwan , ROC
| | - De-Hao Tsai
- Department of Chemical Engineering , National Tsing Hua University , Hsinchu , Taiwan , ROC
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Ren X, Hou H, Liu Z, Gao F, Zheng J, Wang L, Li W, Ying P, Yang W, Wu T. Shape-Enhanced Photocatalytic Activities of Thoroughly Mesoporous ZnO Nanofibers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4007-4017. [PMID: 27337544 DOI: 10.1002/smll.201600991] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/26/2016] [Indexed: 06/06/2023]
Abstract
1D mesoporous materials have attracted extensive interest recently, owning to their fascinating properties and versatile applications. However, it remains as a grand challenge to develop a simple and efficient technique to produce oxide nanofibers with mesoporous architectures, controlled morphologies, large surface areas, and optimal performances. In this work, a facile foaming-assisted electrospinning strategy with foaming agent of tea saponin is used to produce thoroughly mesoporous ZnO nanofibers with high purity and controlled morphology. Interestingly, mesoporous fibers with elliptical cross-section exhibit the significantly enhanced photocatalytic activity for hydrogen production, as compared to the counterparts with circular and rectangular cross-sections, and they also perform better than the commercial ZnO nanopowders. The unexpected shape dependence of photocatalytic activities is attributed to the different stacking modes of the mesoporous fibers, and a geometrical model is developed to account for the shape dependence. This work represents an important step toward producing thoroughly mesoporous ZnO nanofibers with tailored morphologies, and the discovery that fibers with elliptical cross-section render the best performance provides a valuable guideline for improving the photocatalytic performance of such mesoporous nanomaterials.
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Affiliation(s)
- Xiaolong Ren
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
- School of Material Science and Engineering, China University of Mining and Technology, Xuzhou, 221116, P. R. China
| | - Huilin Hou
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Zhixiong Liu
- Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Fengmei Gao
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Jinju Zheng
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Lin Wang
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Wenge Li
- Merchant Marine College, Shanghai Maritime University, Shanghai, 201306, P. R. China
| | - Pengzhan Ying
- School of Material Science and Engineering, China University of Mining and Technology, Xuzhou, 221116, P. R. China
| | - Weiyou Yang
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Tom Wu
- Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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Ren X, Ying P, Yang Z, Shang M, Hou H, Gao F. Foaming-assisted electrospinning of large-pore mesoporous ZnO nanofibers with tailored structures and enhanced photocatalytic activity. RSC Adv 2015. [DOI: 10.1039/c4ra15421e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have demonstrated the growth of large-pore mesoporous ZnO nanofibers with enhanced photocatalytic activity via an improved electrospinning strategy.
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Affiliation(s)
- Xiaolong Ren
- School of Material Science and Engineering
- China University of Mining and Technology
- Xuzhou
- P. R. China
- Institute of Materials
| | - Pengzhan Ying
- School of Material Science and Engineering
- China University of Mining and Technology
- Xuzhou
- P. R. China
| | - Zuobao Yang
- Institute of Materials
- Ningbo University of Technology
- Ningbo
- P. R. China
| | - Minghui Shang
- Institute of Materials
- Ningbo University of Technology
- Ningbo
- P. R. China
| | - Huilin Hou
- Institute of Materials
- Ningbo University of Technology
- Ningbo
- P. R. China
| | - Fengmei Gao
- Institute of Materials
- Ningbo University of Technology
- Ningbo
- P. R. China
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