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Zhang H, Zheng K, Gu S, Wang Y, Zhou X, Yan H, Ma K, Zhao Y, Jin X, Lu G, Deng Y. Grass-Legume Mixture with Rhizobium Inoculation Enhanced the Restoration Effects of Organic Fertilizer. Microorganisms 2023; 11:1114. [PMID: 37317088 DOI: 10.3390/microorganisms11051114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/18/2023] [Accepted: 04/22/2023] [Indexed: 06/16/2023] Open
Abstract
The establishment of artificial grassland is crucial in restoring degraded grassland and resolving the forage-livestock conflict, and the application of organic fertilizer and complementary seeding of grass-legume mixture are effective methods to enhance grass growth in practice. However, its mechanism behind the underground is largely unclear. Here, by utilizing organic fertilizer in the alpine region of the Qinghai-Tibet Plateau, this study assessed the potential of grass-legume mixtures with and without the inoculation of Rhizobium for the restoration of degraded grassland. The results demonstrated that the application of organic fertilizer can increase the forage yield and soil nutrient contents of degraded grassland, and they were 0.59 times and 0.28 times higher than that of the control check (CK), respectively. The community composition and structure of soil bacteria and fungi were also changed by applying organic fertilizer. Based on this, the grass-legume mixture inoculated with Rhizobium can further increase the contribution of organic fertilizer to soil nutrients and thus enhance the restoration effects for degraded artificial grassland. Moreover, the application of organic fertilizer significantly increased the colonization of gramineous plant by native mycorrhizal fungi, which was ~1.5-2.0 times higher than CK. This study offers a basis for the application of organic fertilizer and grass-legume mixture in the ecological restoration of degraded grassland.
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Affiliation(s)
- Haijuan Zhang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Kaifu Zheng
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Songsong Gu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yingcheng Wang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Xueli Zhou
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
- Experimental Station of Grassland Improvement in Qinghai Province, Gonghe 813000, China
| | - Huilin Yan
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Kun Ma
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Yangan Zhao
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Xin Jin
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Guangxin Lu
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Ye Deng
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China
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Chen Z, Schwarz B, Zhang X, Du W, Zheng L, Tian A, Zhang Y, Zhang Z, Zeng XC, Zhang Z, Huai L, Wu J, Ehrenberg H, Wang D, Li J. Peroxo Species Formed in the Bulk of Silicate Cathodes. Angew Chem Int Ed Engl 2021; 60:10056-10063. [PMID: 33624367 PMCID: PMC8251627 DOI: 10.1002/anie.202100730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Indexed: 11/11/2022]
Abstract
Oxygen redox in Li-rich oxides may boost the energy density of lithium-ion batteries by incorporating oxygen chemistry in solid cathodes. However, oxygen redox in the bulk usually entangles with voltage hysteresis and oxygen release, resulting in a prolonged controversy in literature on oxygen transformation. Here, we report spectroscopic evidence of peroxo species formed and confined in silicate cathodes amid oxygen redox at high voltage, accompanied by Co2+ /Co3+ redox dominant at low voltage. First-principles calculations reveal that localized electrons on dangling oxygen drive the O-O dimerization. The covalence between the binding cation and the O-O dimer determines the degree of electron transfer in oxygen transformation. Dimerization induces irreversible structural distortion and slow kinetics. But peroxo formation can minimize the voltage drop and volume expansion in cumulative cationic and anionic redox. These findings offer insights into oxygen redox in the bulk for the rational design of high-energy-density cathodes.
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Affiliation(s)
- Zhenlian Chen
- Key Laboratory of Optoelectronic Chemical Materials and DevicesSchool of Chemical and Environmental EngineeringJianghan UniversityWuhanChina
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
- Department of ChemistryUniversity of Nebraska–LincolnLincolnNEUSA
| | - Bjoern Schwarz
- Institute for Applied Materials (IAM)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1Eggenstein-LeopoldshafenGermany
| | - Xianhui Zhang
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Wenqiang Du
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Lirong Zheng
- Institute of High Energy PhysicsChinese Academy of SciencesBeijingChina
| | - Ailing Tian
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Ying Zhang
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Zhiyong Zhang
- Stanford Research Computing CenterStanford University255 Panama StreetStanfordCAUSA
| | - Xiao Cheng Zeng
- Department of ChemistryUniversity of Nebraska–LincolnLincolnNEUSA
| | - Zhifeng Zhang
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Liyuan Huai
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Jinlei Wu
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Helmut Ehrenberg
- Institute for Applied Materials (IAM)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1Eggenstein-LeopoldshafenGermany
| | - Deyu Wang
- Key Laboratory of Optoelectronic Chemical Materials and DevicesSchool of Chemical and Environmental EngineeringJianghan UniversityWuhanChina
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
| | - Jun Li
- Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingboChina
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Liao Y, Deng P, Wang X, Zhang D, Li F, Yang Q, Zhang H, Zhong Z. A Facile Method for Preparation of Cu 2O-TiO 2 NTA Heterojunction with Visible-Photocatalytic Activity. Nanoscale Res Lett 2018; 13:221. [PMID: 30043194 PMCID: PMC6057862 DOI: 10.1186/s11671-018-2637-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 07/13/2018] [Indexed: 05/27/2023]
Abstract
Based on highly ordered TiO2 nanotube arrays (NTAs), we successfully fabricated the Cu2O-TiO2 NTA heterojunction by a simple thermal decomposition process for the first time. The anodic TiO2 NTAs were functioned as both "nano-container" and "nano-reactors" to load and synthesize the narrow band Cu2O nanoparticles. The loaded Cu2O expanded absorption spectrum of the TiO2 NTAs from ultraviolent range to visible light range. We found that the Cu2O-TiO2 NTA heterojunction films had visible activity towards photocatalytic degrading methyl orange (MO). The photocatalytic abilities of the Cu2O-TiO2 NTA heterojunction films were found increased with the Cu2O content from 0.05 to 0.3 mol/L. This could be explained by more electron-hole pairs generated and less recombination, when the Cu2O-TiO2 heterojunction got formed. Here, we put forward this promising method, hoping it can facilitate the mass production and applications of Cu2O-TiO2 NTA heterojunction.
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Affiliation(s)
- Yulong Liao
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu, 611731 China
| | - Peng Deng
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Xiaoyi Wang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Dainan Zhang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Faming Li
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu, 611731 China
| | - Qinghui Yang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Huaiwu Zhang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Zhiyong Zhong
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
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