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Orozco-Gonzalez LR, Acosta-Najarro DR, Magaña-Zavala CR, Tavizón-Pozos JA, Cervantes-Cuevas H, Chavez-Esquivel G. Photocatalytic degradation of naproxen using single-doped TiO 2/FTO and co-doped TiO 2-VO 2/FTO thin films synthesized by sonochemistry. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2022. [DOI: 10.1515/ijcre-2022-0109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Abstract
Single-doped TiO2/FTO and co-doped TiO2-VO2/FTO thin films were prepared by sonochemistry and spray pyrolysis deposition on FTO substrates. The co-deposition of TiO2-VO2 on FTO significantly changed the morphological, structural, optical, and photocatalytical properties compared to the single-deposition. X-ray diffraction and HRTEM results showed polycrystalline film structures composed of SnO2-tetragonal from FTO, anatase-TiO2, rutile-TiO2, and monoclinic-VO2 phases. The co-deposition technique increases the particle size distribution by approximately two times compared to simple deposition. The single-doped TiO2/FTO thin film had a 15% higher bandgap than the co-doped TiO2-VO2/FTO thin film, and the electrical resistivity calculated from the van der Pauw method was 55.3 MΩ sq−1 for the TiO2-VO2/FTO co-doped thin film, 2.7 times lower than that obtained for the TiO2/FTO thin film. Single-doped TiO2/FTO and co-doped TiO2-VO2/FTO thin films presented pseudo-first-order reactions at pH 6.5, with kinetic constants of 0.026 and 0.015 min−1, respectively. This behavior is related to the production of inactive or less active aggregates by the addition of vanadium during the co-doping process, which led to lattice contraction, which encouraged the formation of the rutile phase rather than the anatase phase. However, the co-doped thin film can modify the metal-insulator transition compared to the single-doped TiO2/FTO thin film. Furthermore, co-deposition decreased the bandgap value by 16% compared to single-deposition thin film. In this sense, co-doped TiO2-VO2/FTO thin films inhibited the recombination of photogenerated carriers and the formation of reactive oxygen species involved in the photocatalytic degradation of naproxen.
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Affiliation(s)
- Luis Rene Orozco-Gonzalez
- Instituto de Física, Universidad Nacional Autónoma de México, Cuidad Universitaria , Coyoacan , Ciudad de México 20364 , México
| | - Dwight Roberto Acosta-Najarro
- Instituto de Física, Universidad Nacional Autónoma de México, Cuidad Universitaria , Coyoacan , Ciudad de México 20364 , México
| | - Carlos Raúl Magaña-Zavala
- Instituto de Física, Universidad Nacional Autónoma de México, Cuidad Universitaria , Coyoacan , Ciudad de México 20364 , México
| | - Jesus Andres Tavizón-Pozos
- Investigadoras e Investigadores por México CONACYT, Área Académica de Química , Universidad Autónoma del Estado de Hidalgo , Carr. Pachuca-Tulancingo km 4.5 , Pachuca 42184 , Hidalgo , México
| | - Humberto Cervantes-Cuevas
- Departamento de Ciencias Básicas, División de Ciencias Básicas e Ingeniería , Universidad Autónoma Metropolitana-Azcapotzalco , Av. San Pablo 180, Col. Reynosa Tamaulipas, Azcapotzalco , Ciudad de México 02200 , México
| | - Gerardo Chavez-Esquivel
- Departamento de Ciencias Básicas, División de Ciencias Básicas e Ingeniería , Universidad Autónoma Metropolitana-Azcapotzalco , Av. San Pablo 180, Col. Reynosa Tamaulipas, Azcapotzalco , Ciudad de México 02200 , México
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Zhang Z, Wu G, Ji H, Chen D, Xia D, Gao K, Xu J, Mao B, Yi S, Zhang L, Wang Y, Zhou Y, Kang L, Gao Y. 2D/1D V 2O 5 Nanoplates Anchored Carbon Nanofibers as Efficient Separator Interlayer for Highly Stable Lithium-Sulfur Battery. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E705. [PMID: 32276389 PMCID: PMC7221543 DOI: 10.3390/nano10040705] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/01/2020] [Accepted: 04/06/2020] [Indexed: 11/22/2022]
Abstract
Quick capacity loss due to the polysulfide shuttle effects is a critical challenge for high-performance lithium-sulfur (Li-S) batteries. Herein, a novel 2D/1D V2O5 nanoplates anchored carbon nanofiber (V-CF) interlayer coated on standard polypropylene (PP) separator is constructed, and a stabilization mechanism derived from a quasi-confined cushion space (QCCS) that can flexibly accommodate the polysulfide utilization is demonstrated. The incorporation of the V-CF interlayer ensures stable electron and ion pathway, and significantly enhanced long-term cycling performances are obtained. A Li-S battery assembled with the V-CF membrane exhibited a high initial capacity of 1140.8 mAh·g-1 and a reversed capacitance of 1110.2 mAh·g-1 after 100 cycles at 0.2 C. A high reversible capacity of 887.2 mAh·g-1 is also maintained after 500 cycles at 1 C, reaching an ultra-low decay rate of 0.0093% per cycle. The excellent electrochemical properties, especially the long-term cycling stability, can offer a promising designer protocol for developing highly stable Li-S batteries by introducing well-designed fine architectures to the separator.
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Affiliation(s)
- Zongtao Zhang
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Guodong Wu
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Haipeng Ji
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Deliang Chen
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Dengchao Xia
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Keke Gao
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Jianfei Xu
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Bin Mao
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Shasha Yi
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Liying Zhang
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Yu Wang
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Ying Zhou
- School of Materials Science and Engineering, Zhengzhou University, Kexue Ave 100, Zhengzhou 450001, China; (G.W.); (H.J.); (D.C.); (D.X.); (K.G.); (J.X.); (B.M.); (S.Y.); (L.Z.); (Y.W.); (Y.Z.)
| | - Litao Kang
- College of Environment and Materials Engineering, Yantai University, Yantai 264005, China
| | - Yanfeng Gao
- School of Materials Science and Engineering, Shanghai University, Shangda Rd 99, Shanghai 200444, China
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