Results 21 to 30 of about 1,483,849 (141)
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Photocatalytic acetylene (C2H2) semihydrogenation is a green route for ethylene (C2H4) production, yet the activity–selectivity trade‐off caused by imbalanced adsorption/activation of reactants and products remains a core challenge. Herein, we realize precise regulation of Pd oxidation states (Pd0, Pdδ+, and Pd2+) on anatase TiO2 nanocubes via
Zhidan Wang +7 more
wiley +1 more source
Gongye shui chuli, 2000 以耐火砖颗粒为载体,用浸涂法制备了负载型TiO2 光催化氧化剂,并设计了一种二相流化床光催化反应器。考察了固相催化剂制备过程中粘结剂的量、载体粒度及催化剂的表面处理方式等因素对催化剂的活性影响。结果表明,在流化床光催化反应器中,利用该方法制备的负载型TiO2 光催化氧化剂,对染料4BS 溶液的降解脱色反应具有很好的光催化活性及光催化效果的稳定性,为光催化技术的实际应用提供了有意义的尝试。
江立文 +3 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT High‐yield photocatalytic H2O2 production in sacrificial agent‐free pure water constitutes a critical bottleneck requiring urgent advances in energy catalysis. Although ZnIn2S4 (ZIS) exhibits favourable visible light absorption, it is plagued by severe bulk charge carrier recombination and scarce accessible surface‐active sites.
Sheng Liu +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Electrochemical carbon dioxide reduction reaction (CO2RR) powered by renewable electricity offers a sustainable route for producing value‐added carbonaceous chemicals. Herein, a three‐membrane electrolyzer was employed to directly co‐generate carbon monoxide (CO), chlorine (Cl2), and potassium carbonate (K2CO3) from the electrolysis of CO2 and
Shuai Wu +10 more
wiley +1 more source
Gongye shui chuli, 2007 通过溶胶-凝胶和浸渍相结合的方法制备出负载型纳米TiO2光催化剂，在光催化氧化反应器中对含有甲基橙的微污染水进行了光催化氧化研究。确定影响甲基橙光催化氧化的主要影响因素为TiO2光催化剂投加量、氧化剂投加量。结果表明，光催化氧化要比无催化剂的光氧化效果好，甲基橙的降解过程符合一级反应动力学模型；最佳的催化剂投加质量浓度为0.40g/L；增加H2O2的投加量有助于甲基橙的去除。
杨玉旺 +4 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Photocatalytic H2 evolution coupled with biomass upgrading offers a sustainable route for clean energy conversion and high‐value chemical synthesis. Herein, an in situ grown S‐scheme MnS/MnB‐MBene heterojunction (denoted as SMx) was fabricated via alkaline etching of Mn2AlB2 followed by controlled sulfurization.
Pei Li +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Pyritum can eliminate blood stasis and promote the healing of muscles and bones, which has been used as a traditional mineral medicine in China for thousands of years. However, the mechanisms of action and processing methods of Pyritum were not illustrated.
Mingxia Li +8 more
wiley +1 more source
Gongye shui chuli, 2021 人类面临着能源短缺和环境污染两大难题，而光催化技术的发展对于这两大问题的解决具有重要意义。光催化技术的核心是光催化剂。在众多的光催化剂中，钼酸铋由于具有独特的钙钛片层状结构和优良的可见光催化性能，近年来引起了研究者的广泛关注。重点概述了钼酸铋基异质结光催化材料的构建方法和典型的钼酸铋基异质结体系，系统地归纳了各种钼酸铋基异质结型光催化材料的催化活性和应用领域，并对钼酸铋基异质结型光催化材料的发展方向进行了展望。
焦长泉 +4 more
doaj +2 more sources
, 1998 本文考察了二氧化钛经氢气氛热处理后对其光催化降解苯酚活性的影响。结果ＤＲＳ，ＦＳ，ＸＲＤ等研究手段，发现二氧化钛光催化降解苯酚的活性与其光学特性（吸收光能力和荧光发射强度）有较好的一致性，而光学特性来自表面态。由此，提出了二氧化钛光学表面态的概念，认为与光催化活性密切相关的二氧化钛光学表面态的性质 ...
李文钊 +5 more
core +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Photocatalysis has emerged as a promising approach for solar energy conversion and environmental remediation. However, its practical implementation is still hindered by limited charge‐separation efficiency, slow surface reaction kinetics, and insufficient catalyst stability.
Mengting Zhang +5 more
wiley +1 more source