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首页> 外文期刊>Advanced Sustainable Systems >Fabrication of High-Performance Biomass Derived Carbon/Metal Oxide Photocatalysts with Trilevel Hierarchical Pores from Organic-Inorganic Network
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Fabrication of High-Performance Biomass Derived Carbon/Metal Oxide Photocatalysts with Trilevel Hierarchical Pores from Organic-Inorganic Network

机译：制造高性能生物质衍生与Trilevel碳/金属氧化物催化剂从有机-无机网络分层的毛孔

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摘要

Cost-effective biomass derived carbon is considered a highly attractive energy material while high-performance biochar based nanocomposites with well-defined structures are very desirable candidates for this application. Herein, a novel and feasible fabrication method with renewable plane tree fluff as the carbon source is proposed to synthesize hierarchical porous titanium dioxide (TiO2)/carbon nanocomposites covering full length scales. A hybrid inorganic/organic framework with sub 10 nm feature sizes is used as the metal source for building up a high-quality interface between phases, while bitemplates with ice and nanoscaled silica are introduced for porosity tuning. The as-prepared TiO2/C nanocomposite presents superior photocatalytic activity for organic pollutant degradation and excellent photo-electrochemical performance. More importantly, when loaded with a noble-metal-free carbide (Mo2C) prepared from a novel hydrothermal assisted fabrication route, it shows an outstanding hydrogen generation rate of 5.4 (UV) and 0.09 (visible light) mmol g-1 h-1 for water splitting, which are much better than the same sample loaded with Pt and benchmark P25. The present work proposes a dynamic and reliable tactic to synthesize a broad set of hierarchicalporous metal oxide based nanocomposites, which is of far-reaching significance for the development of sustainable technology for environmental, energy, and catalysis applications.
机译：具有成本效益的生物质碳派生而来认为是一个极具吸引力的能源物质而基于高性能生物炭纳米复合材料和清晰的结构对于这个应用程序非常理想的候选人。在此,小说和可行的加工方法用可再生碳平面树绒毛源,提出了合成等级制度多孔二氧化钛(TiO2) /碳纳米复合材料覆盖完整的长度尺度。混合子10纳米无机/有机框架特征尺寸用作金属来源建立一个高质量的之间的接口阶段,而bitemplates冰和纳米级介绍了硅对孔隙度调优。好了二氧化钛/ C纳米复合材料的礼物优越的光催化活性的有机食品污染物降解和优秀的photo-electrochemical性能。重要的是,当加载noble-metal-free水热碳化(Mo2C)准备从一本小说协助制造路线,它显示了一个杰出的氢气产生率5.4 (UV)和0.09(可见光)更易与g - 1 h级水分裂,比相同样品含有Pt和基准P25。现在的工作提出了一个动态的和可靠的策略合成一组广泛的基于hierarchicalporous金属氧化物纳米复合材料,这是深远的可持续发展的意义技术环境、能源和催化应用。

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