ACS Applied Nano Materials最新文献

{"title":"Tolerogenic Reverse Micelle Nanovaccine Prevents Onset and Progression of Multiple Sclerosis","authors":"Rui Zhang, Haolin Zhang, Yue Wang, Yuxin Hu, Qing Ma, Weijia Huang, Xin Li, Yongjun Wang, Hongzhuo Liu","doi":"10.1021/acsanm.4c03301","DOIUrl":"https://doi.org/10.1021/acsanm.4c03301","url":null,"abstract":"Exhilarating breakthroughs in the treatment of autoimmune diseases through antigen-specific therapies offer new hope for patients. Herein, a novel antigen-specific reverse micelle platform is proposed: blank liposomes prepared with 1, 2-diolyl-<i>sn</i>-glycerol-3-phosphocholine (DOPC) and cholesterol (Chol) are mixed with an aqueous solution of the encapsulated antigens and immunomodulators, lyophilized, and then reconstituted in oil. Subcutaneous injection of 100 μL of a reverse micelle vaccine loaded with 10 μg of MOG_35–55 and 30 μg of dexamethasone sodium phosphate (DSP) before experimental autoimmune encephalomyelitis (EAE, a multiple sclerosis model) establishment directly blocked the development of clinical symptoms. Furthermore, the same vaccine delayed and attenuated clinical symptoms in an established mouse model of EAE. Conversely, the reverse micelle vaccine loaded with an unrelated antigen OVA failed to alleviate paralysis in mice, highlighting the crucial aspect of antigen specificity. Dose-dependent effects were observed in both the prevention and treatment of EAE, with clinical scores of 0 being achieved during the treatment at single DSP doses of up to 50 μg at the MOG_35–55 dose of 10 μg. The treatment of the reverse micelle vaccine induced Treg cell proliferation, accounting for the tolerance to the pathogenic antigens and improved outcomes. Overall, the designed reverse micelle vaccine provided a universal platform to encapsulate antigens and immunomodulators that restore tolerance of antigens and then demonstrated the therapeutic promise in autoimmune diseases.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Homogeneous Large-Scale Synthesis of GaAs/GaInNAs/GaAs Nanowires on a Si Wafer for Devices Operating in the Near-Infrared Region","authors":"Keisuke Minehisa*,&nbsp;Kaito Nakama,&nbsp;Hidetoshi Hashimoto and Fumitaro Ishikawa*,&nbsp;","doi":"10.1021/acsanm.4c0385510.1021/acsanm.4c03855","DOIUrl":"https://doi.org/10.1021/acsanm.4c03855https://doi.org/10.1021/acsanm.4c03855","url":null,"abstract":"<p >The synthesis of semiconductor nanowires (NWs) with near-infrared light-absorbing and light-emission properties is presented. Gallium (Ga)-induced vapor–liquid–solid growth is used to produce GaAs/GaInNAs/GaAs core–multishell NWs on a 2 in. Si(111) wafer using plasma-assisted molecular beam epitaxy. The GaInNAs shell consists of 11% indium (In) and varying compositions of nitrogen (N) of up to 1.9%. The NWs serve as an antireflective material, showing that the entire substrate is black. Photoluminescence measurements at room temperature validate the expansion of the operating wavelength into the near-infrared region as the N content in the NWs increases. The GaInNAs sample with 11% In and 1.2% N shows homogeneous luminescence at 1100 nm across the entire 2 in. Si substrate. The reflectance of the NW samples is low, less than 2%, and the absorption edge can be controlled by modifying the composition of In and N indicating the potential application of large-scale photoelectric conversion, such as solar cells.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ag Nanoparticles on MXene Nanosheets for Combined Ionic and Photothermal Therapy of Bacterial Infections","authors":"Wenhong Zhou,&nbsp;Jia Chen,&nbsp;Tao Liao,&nbsp;Quanxin Wu,&nbsp;Ning Guo,&nbsp;Guolie Xie,&nbsp;Hao Lin*,&nbsp;Cao Li* and Yun Liu*,&nbsp;","doi":"10.1021/acsanm.4c0133110.1021/acsanm.4c01331","DOIUrl":"https://doi.org/10.1021/acsanm.4c01331https://doi.org/10.1021/acsanm.4c01331","url":null,"abstract":"<p >In view of the increasing bacterial resistance, 2D MXenes are promising alternatives to antibiotics. However, MXene-based photothermal therapy (PTT) suffers from unsatisfactory antibacterial efficiency and heat-resistant strains. Here, we prepared a Ti₃C₂ MXene and Ag hybridized antibacterial nanocomposite [MXene/metal-polyphenol networks (MPNs)/Ag] through the in situ reduction of Ag nanoparticles on MPN wrapped MXene matrix. The use of MPNs as the reducing agents of Ag⁺ and anchoring agents of Ag nanoparticles endowed MXene/MPN/Ag with a tight immobilization capacity and improved colloidal dispersion stability of Ag nanoparticles. The pH-triggered decomposition of MPNs led to the pH-responsive release of Ag to achieve combined MXene-based PTT and Ag-mediated therapy for enhanced antibacterial efficiency. In vitro antibacterial experiments revealed its satisfactory bactericidal activities against both planktonic bacteria and bacteria in stubborn biofilms. In vivo antibacterial assays solidly confirmed its high antibacterial therapeutic efficiency, strong anti-inflammatory ability, and good biosafety. Therefore, the in situ combination of Ag nanoparticles with MXenes offers a promising microenvironment-responsive 2D bactericidal candidate for infection that could be applied in future antibacterial treatments.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave-Assisted Synthesis of MnSeTe Nanocomposite Flowers for Optoelectronic and Photoresponse Applications","authors":"Subhashree Das,&nbsp;Subrata Senapati*,&nbsp;Rajamanickam Ganesan and Ramakanta Naik*,&nbsp;","doi":"10.1021/acsanm.4c0259110.1021/acsanm.4c02591","DOIUrl":"https://doi.org/10.1021/acsanm.4c02591https://doi.org/10.1021/acsanm.4c02591","url":null,"abstract":"<p >The tuning of optical, morphological, and structural properties through precise control of the size/thickness of transition-metal chalcogenide is one of the key aspects for practical applications. The present study reports that the microwave-synthesized MnSe_1+<i>x</i>Te_1–<i>x</i> (MST) nanocomposite by altering Se and Te concentrations is studied for optoelectronic applications. The gradual increase in its crystallinity through MnSe and MnTe₂ crystalline phases with an increase in Se/Te ratio is confirmed by the structural study. The existence of different vibrational modes in the sample with alteration in the microstructural region is confirmed by a Raman study. The morphology study shows the nanosheet (nSh) structure as formed for the as-prepared MST samples, confirming the formation of 2D nanomaterial. The nSh thickness gradually decreased with a decrease in the Se concentration and increased Te. The reduction of the optical band gap of nSh is reflected by shifting the absorption edge to a higher wavelength regime. The refractive index values lie between 2.14 and 2.78 for different MST nSh as per theoretical calculation. The presence of various exothermal and endothermal peaks is confirmed by thermal analysis for the present sample. These materials undergo photodetection measurement, where they illustrate commendable responsivity across a range of values: 1.73, 8.88, and 28.88 nA W^–1. Additionally, these materials showcase detectivity at levels of 1.14 × 10¹⁰, 2.52 × 10¹⁰, and 3.96 × 10¹¹ Jones, respectively. The changes in different optical and structural parameters enable the material’s applicability in optoelectronic devices.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multilayer Graphene Strips on Insulators Formed by Layer Exchange for Applications as Interconnects","authors":"Hiromasa Murata*,&nbsp;Takamitsu Ishiyama,&nbsp;Katsuhisa Murakami,&nbsp;Masayoshi Nagao and Kaoru Toko*,&nbsp;","doi":"10.1021/acsanm.4c0490210.1021/acsanm.4c04902","DOIUrl":"https://doi.org/10.1021/acsanm.4c04902https://doi.org/10.1021/acsanm.4c04902","url":null,"abstract":"<p >Multilayer graphene (MLG) has attracted considerable attention as an interconnect material owing to its excellent electrical and mechanical properties. Several studies on the formation of MLG on insulators have been reported; however, the process temperature and shape controllability of MLG remain challenging. In this study, we investigated the formation of MLG strips for interconnect via metal-induced layer exchange (LE). The LE of strip-patterned amorphous carbon and Ni formed {002}-oriented high-crystallinity MLG strips at low temperatures (600 °C). While voids were formed inside the strip, continuous MLG was formed at the strip edge, likely due to the remarkable atomic diffusion at the edge. Smaller widths and larger thicknesses of the MLG strip allowed us to form uniform MLG strips without voids, and an electrical conductivity of 1100 S cm^–1 was achieved. The technique developed in this study is unique because it overcomes the limitations of conventional MLG fabrication techniques and is promising for MLG interconnect applications.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Morphology-Modified Bi2WO6 Nanoparticles with Surface Plasmon Resonance Effect for the Enhanced Photocatalytic Degradation of Organic Dyes: Toxicity Estimation and In Silico Studies","authors":"K. Hemkumar,&nbsp;G Vignesh and Pius Anitha*,&nbsp;","doi":"10.1021/acsanm.4c0223810.1021/acsanm.4c02238","DOIUrl":"https://doi.org/10.1021/acsanm.4c02238https://doi.org/10.1021/acsanm.4c02238","url":null,"abstract":"<p >The advanced oxidation process involves photocatalytic degradation, which is a propitious method of treating wastewater. However, to augment the photocatalytic activity of photocatalysts, the surface plasmon resonance (SPR) method is a highly promising candidate. Herein, we prepared bismuth (Bi) and tungsten (W)-based metal oxide (Bi₂WO₆) coupled with Ag as a semiconducting metal oxide-based plasmon resonance photocatalyst. Despite the SPR effect, the aggregation of particles lowers the efficiency of degradation. To get the better of it, morphology tuning agents and visible light-absorbing agents like CTAB (cetyltrimethylammonium bromide) were used. The prepared composite materials were characterized using sophisticated analytical instruments. The prepared materials were tested for their catalytic activity against Victoria Blue (VB) and Auramine O (AO) dyes. The composite material showed superior catalytic activity over the individual material, 97% and 98% for VB and AO, respectively. In addition, the toxicity of the byproducts (mutagenic toxicity, lethal concentration 50 (LC-50), and lethal dose (LD-50)) was estimated, and the detailed DFT interpretations were studied. Finally, a real-time agricultural application using post-treated water was conducted at the <i>Epipremnum aureum</i> plant.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Electrocatalytic Activity for Nitrate Reduction to Ammonia by Tuning a Ruthenium Oxidation State of Ruthenium-Based Nanotubes","authors":"Xin Jiang,&nbsp;Pan-Yan Chen,&nbsp;Wan-Wan Wu,&nbsp;Jia-Yin Guo,&nbsp;Wei-Wei Li,&nbsp;Yu-Jie Mao,&nbsp;Tian Sheng*,&nbsp;Xinsheng Zhao* and Lu Wei*,&nbsp;","doi":"10.1021/acsanm.4c0406610.1021/acsanm.4c04066","DOIUrl":"https://doi.org/10.1021/acsanm.4c04066https://doi.org/10.1021/acsanm.4c04066","url":null,"abstract":"<p >Electrocatalytic nitrate reduction to ammonia (NRA) seriously suffers from slow kinetics and low selectivity due to its eight-electron transfer process and complex reaction intermediates. Herein, Ru-based nanotubes (NTs) were designed to enhance the electrocatalytic activity of NRA. Significantly, the metallic Ru NTs endowed remarkable ammonia (NH₃) yield rate (<i></i><math><msub><mi>v</mi><mrow><msub><mi>NH</mi><mn>3</mn></msub></mrow></msub></math>) of 40.6 mg h^–1 mg_cat.^–1 at −1.20 V vs SCE and the highest NH₃ Faradaic efficiency (<i></i><math><msub><mi>FE</mi><mrow><msub><mi>NH</mi><mn>3</mn></msub></mrow></msub></math>) of 98.4% at −1.10 V vs SCE under ambient conditions, which are superior to those of RuO₂ NTs (<i></i><math><msub><mi>v</mi><mrow><msub><mi>NH</mi><mn>3</mn></msub></mrow></msub></math>: 0.52 mg h^–1 mg_cat.^–1, <i></i><math><msub><mi>FE</mi><mrow><msub><mi>NH</mi><mn>3</mn></msub></mrow></msub></math>: 18.2%). Both experimental and theoretical results have proved that the Ru metallic state is more beneficial to N–O bond breaking and hydrogenation than the oxidized state, improving the kinetics and selectivity of NRA.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Morphology-Modified Bi2WO6 Nanoparticles with Surface Plasmon Resonance Effect for the Enhanced Photocatalytic Degradation of Organic Dyes: Toxicity Estimation and In Silico Studies","authors":"K. Hemkumar, G Vignesh, Pius Anitha","doi":"10.1021/acsanm.4c02238","DOIUrl":"https://doi.org/10.1021/acsanm.4c02238","url":null,"abstract":"The advanced oxidation process involves photocatalytic degradation, which is a propitious method of treating wastewater. However, to augment the photocatalytic activity of photocatalysts, the surface plasmon resonance (SPR) method is a highly promising candidate. Herein, we prepared bismuth (Bi) and tungsten (W)-based metal oxide (Bi₂WO₆) coupled with Ag as a semiconducting metal oxide-based plasmon resonance photocatalyst. Despite the SPR effect, the aggregation of particles lowers the efficiency of degradation. To get the better of it, morphology tuning agents and visible light-absorbing agents like CTAB (cetyltrimethylammonium bromide) were used. The prepared composite materials were characterized using sophisticated analytical instruments. The prepared materials were tested for their catalytic activity against Victoria Blue (VB) and Auramine O (AO) dyes. The composite material showed superior catalytic activity over the individual material, 97% and 98% for VB and AO, respectively. In addition, the toxicity of the byproducts (mutagenic toxicity, lethal concentration 50 (LC-50), and lethal dose (LD-50)) was estimated, and the detailed DFT interpretations were studied. Finally, a real-time agricultural application using post-treated water was conducted at the <i>Epipremnum aureum</i> plant.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Electrocatalytic Activity for Nitrate Reduction to Ammonia by Tuning a Ruthenium Oxidation State of Ruthenium-Based Nanotubes","authors":"Xin Jiang, Pan-Yan Chen, Wan-Wan Wu, Jia-Yin Guo, Wei-Wei Li, Yu-Jie Mao, Tian Sheng, Xinsheng Zhao, Lu Wei","doi":"10.1021/acsanm.4c04066","DOIUrl":"https://doi.org/10.1021/acsanm.4c04066","url":null,"abstract":"Electrocatalytic nitrate reduction to ammonia (NRA) seriously suffers from slow kinetics and low selectivity due to its eight-electron transfer process and complex reaction intermediates. Herein, Ru-based nanotubes (NTs) were designed to enhance the electrocatalytic activity of NRA. Significantly, the metallic Ru NTs endowed remarkable ammonia (NH&lt;sub&gt;3&lt;/sub&gt;) yield rate (&lt;i&gt;&lt;/i&gt;&lt;span style=\"color: inherit;\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;msub&gt;&lt;mi&gt;v&lt;/mi&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;NH&lt;/mi&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;' role=\"presentation\" style=\"position: relative;\" tabindex=\"0\"&gt;&lt;nobr aria-hidden=\"true\"&gt;&lt;span style=\"width: 2.162em; display: inline-block;\"&gt;&lt;span style=\"display: inline-block; position: relative; width: 1.935em; height: 0px; font-size: 110%;\"&gt;&lt;span style=\"position: absolute; clip: rect(1.537em, 1001.93em, 2.616em, -999.997em); top: -2.156em; left: 0em;\"&gt;&lt;span&gt;&lt;span&gt;&lt;span style=\"display: inline-block; position: relative; width: 1.935em; height: 0px;\"&gt;&lt;span style=\"position: absolute; clip: rect(3.355em, 1000.46em, 4.151em, -999.997em); top: -3.974em; left: 0em;\"&gt;&lt;span style=\"font-family: STIXMathJax_Normal-italic;\"&gt;𝑣&lt;/span&gt;&lt;span style=\"display: inline-block; width: 0px; height: 3.98em;\"&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=\"position: absolute; top: -3.804em; left: 0.514em;\"&gt;&lt;span&gt;&lt;span&gt;&lt;span style=\"display: inline-block; position: relative; width: 1.31em; height: 0px;\"&gt;&lt;span style=\"position: absolute; clip: rect(3.355em, 1001.03em, 4.151em, -999.997em); top: -3.974em; left: 0em;\"&gt;&lt;span style=\"font-size: 70.7%; font-family: STIXMathJax_Main;\"&gt;NH&lt;/span&gt;&lt;span style=\"display: inline-block; width: 0px; height: 3.98em;\"&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=\"position: absolute; top: -3.861em; left: 1.026em;\"&gt;&lt;span style=\"font-size: 50%; font-family: STIXMathJax_Main;\"&gt;3&lt;/span&gt;&lt;span style=\"display: inline-block; width: 0px; height: 3.98em;\"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=\"display: inline-block; width: 0px; height: 3.98em;\"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=\"display: inline-block; width: 0px; height: 2.162em;\"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=\"display: inline-block; overflow: hidden; vertical-align: -0.372em; border-left: 0px solid; width: 0px; height: 0.941em;\"&gt;&lt;/span&gt;&lt;/span&gt;&lt;/nobr&gt;&lt;span role=\"presentation\"&gt;&lt;math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub&gt;&lt;mi&gt;v&lt;/mi&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;NH&lt;/mi&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math display=\"inline\"&gt;&lt;msub&gt;&lt;mi&gt;v&lt;/mi&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;NH&lt;/mi&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;) of 40.6 mg h&lt;sup&gt;–1&lt;/sup&gt; mg&lt;sub&gt;cat.&lt;/sub&gt;&lt;sup&gt;–1&lt;/sup&gt; at −1.20 V vs SCE and the highest NH&lt;sub&gt;3&lt;/sub&gt; Faradaic efficiency (&lt;i&gt;&lt;/i&gt;&lt;span style=\"color: inherit;\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;msub&gt;&lt;mi&gt;FE&lt;/mi&gt;&lt;mrow&g","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142267545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transition Metal Phosphides (Fe2P, Co2P, and Ni2P) Modified CdS Nanorods for Efficient Photocatalytic H2 Evolution","authors":"Wei Ren, Jiahui Wang, Xiuzhen Zheng, Jingbiao Ge, Sugang Meng, Yang Yang, Shifu Chen","doi":"10.1021/acsanm.4c04156","DOIUrl":"https://doi.org/10.1021/acsanm.4c04156","url":null,"abstract":"As cocatalysts play important roles in enhancing the catalytic performance, designing and fabricating highly active cocatalysts is an effective approach to improving photocatalytic H₂ production. In this work, transition metal phosphides (including Fe₂P, Co₂P, and Ni₂P) with nanoscale structures are synthesized by the solvothermal method, which can largely enhance the photocatalytic activity and stability of CdS nanorods as cocatalysts. By optimizing the synthesis and reaction conditions, 10% Co₂P/CdS achieved the highest H₂ production, about 29.24 mmol·g^–1·h^–1 in the lactic acid solution, which was 21.5 and 3.0 times higher than that of CdS (1.36 mmol·g^–1·h^–1) and 1% Pt/CdS (9.63 mmol·g^–1·h^–1), respectively. Testing by many characterizations, not only the reasons for different activities for TMPs/CdS but also the enhanced reasons of Co₂P/CdS are explored. The results indicated that the non-noble metal Co₂P cocatalyst not only enhanced the visible light absorption of CdS but also promoted the effective separation of photogenerated charge carriers. This work contributes to the further development of TMPs as low-cost and highly active cocatalysts for CdS-based photocatalysts.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}