Results 21 to 30 of about 1,512,875 (136)
ABSTRACT Currently, the photocatalytic performance of ZnO has been severely limited by its weak light response ability and sluggish charge carrier dynamics, which considerably hinder its extensive application in photocatalytic fields. Herein, through anchoring the synthesized K6PMo11FeO40·nH2O (PMo11Fe) onto ZnO nanosheets, a novel S‐scheme ...
Xinjia Zhang +8 more
wiley +1 more source
简述了半导体光催化氧化法的原理。概述了光催化氧化从分散相到固定相的发展及提高催化剂活性的方法。提出了光催化氧化法与电化学的结合--电化学辅助光催化氧化技术,它是一项新型的污水处理技术。
刘正宝, 姚清照
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ABSTRACT Platinum‐based electrocatalysts are fundamentally constrained by strong oxygen binding, which restricts the oxygen reduction reaction (ORR) kinetics, and by severe CO poisoning, which hinders the methanol oxidation reaction (MOR). To address these limitations, we synthesized PdPtRuIrRhNi high‐entropy alloy (HEA) mesoporous nanotubes that ...
Hong Pan +6 more
wiley +1 more source
Advances in Thermoelectric Cu2ZnSnS4: From Structure, Synthesis to Performance
ABSTRACT Thermoelectric technology has the capacity to directly convert waste heat into electricity and vice versa. For a long time, Cu2ZnSnS4 (CZTS) has been extensively researched in the domains of solar cells and photocatalysis due to its exceptional photovoltaic properties, but its wide bandgap prevents it from being favored in thermoelectrics ...
Xiaojun Li +3 more
wiley +1 more source
易回收碳纤维/g-C3N4纳米片阵列制备及光催化和光电催化研究
在光催化降解领域,粉末g-C3N4光催化材料使用后在流体中分离和回收困难,同时也会产生二次污染。在氩气保护下,采用化学气相沉积法在三维碳纤维织物表面沉积g-C3N4纳米片,从而制备了易回收碳纤维/g-C3N4纳米片阵列光催化材料,研究了碳纤维/g-C3N4纳米片阵列的光学、电化学和光电催化性能。结果表明,g-C3N4纳米片可以吸收可见光产生光生电子和空穴,而碳纤维良好的导电性提高了易回收碳纤维/g-C3N4纳米片阵列光催化材料中光生电子/空穴的分离效率。降解240 min,易回收碳纤维/g ...
张宏伟 +6 more
doaj +2 more sources
采用一步水热法制备还原氧化石墨烯-氧化锌(RGO-ZnO)复合材料,并将其用于光催化降解抗生素环丙沙星和还原Cr(Ⅵ)。研究发现,在光催化降解和还原体系中,光催化活性明显高于单独的氧化或还原体系,并有利于延长光生载流子寿命。此外,RGO-ZnO的光催化活性明显高于ZnO。通过电镜表征,发现RGO-ZnO为二维结构与二维结构复合(2D-2D),固体荧光光谱表明RGO-ZnO更有利于电子-空穴对的分离。
马瑞霄, 周浩, 张燕辉
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ABSTRACT Metal nanoclusters provide abundant catalytically active sites and unique electronic structures that are highly beneficial for enhancing photocatalytic performance; however, their practical application is often hindered by poor photostability.
Yiying Qin +6 more
wiley +1 more source
Efficient Photocatalytic Removal of Toluene by Synergistic FeCe/TiO2: Performance and Mechanism
ABSTRACT Efficient removal of volatile organic compounds (VOCs) in confined spaces is crucial for environments such as spacecraft and deep‐sea submarines. Metal modification is an effective strategy to enhance the light absorption capacity of titanium dioxide (TiO2) and suppress the recombination of photogenerated charge carriers.
Ke Xu +10 more
wiley +1 more source
ABSTRACT The electrocatalytic co‐reduction of CO2 and nitrate (NO3− ${\text{NO}}_{3}^{-}$) to synthesize urea presents a sustainable alternative to traditional industrial processes, yet its efficiency is fundamentally limited by the kinetically mismatched activation and coupling of CO2 and NO3− ${\text{NO}}_{3}^{-}$.
Jiayu Liu +9 more
wiley +1 more source
ABSTRACT Because of superior transportability and high energy capacity, methanol is regarded as a potential hydrogen carrier. Photocatalytic methanol dehydrogenation offers a sustainable and cost‐effective method for releasing hydrogen. Conventional photocatalysts face challenging obstacles, including the low catalytic efficiency and rapid ...
Rundong Chen +9 more
wiley +1 more source

