Results 31 to 40 of about 2,102,728 (139)
掺杂可有效改善纳米TiO2的光催化活性及其光利用率,利于光催化技术在工业生产中的应用推广。介绍了掺杂纳米TiO2的光催化机理,总结了常见的掺杂纳米TiO2的制备方法:溶胶-凝胶法、浸渍法等。阐述了TiO2光催化技术在印染废水、农药废水、造纸废水及工业无机废水处理中的应用,并进一步分析了该研究领域所存在的问题,为今后光催化技术的发展方向提出展望:寻求新的掺杂离子、研制掺杂负载型纳米光催化剂和加强降解机理研究等。
孙剑辉, 王晓蕾
doaj +2 more sources
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
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
VO2 Hollow Nano‐Reactor: Enabling Near‐Room‐Temperature and Ultrafast Hydrogen Release From α‐AlH3
ABSTRACT α‐phase aluminum trihydride (α‐AlH3) is a promising high‐capacity hydrogen storage material, but its practical application is limited by slow dehydrogenation kinetics and high reaction temperatures. This study demonstrates, for the first time, effective modulation of the hydrogen release kinetics of AlH3 by employing a hollow nanostructured ...
Haoyuan Zheng +8 more
wiley +1 more source
Fe3O4作为尖晶石型非均相类Fenton催化材料,具有绿色无毒、价廉易得、催化活性较高等优点,但纯相Fe3O4催化剂存在H2O2利用率低、适用pH范围窄、活性位点少以及难以回收等问题,影响其实际应用。通过改性Fe3O4或优化反应体系使其具有更高的催化活性是当今国内外学者的研究重点。简述了Fe3O4的理化特性以及类Fenton催化机理,分析了限制Fe3O4催化活性的主要因素,并在此基础上总结了形貌调控、元素掺杂 ...
石冬妮 +7 more
doaj +2 more sources
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
本发明涉及工业废水处理,具体地说是一种二氧化氯-电多相催化氧化处理苯甲醚废水方法。首先对苯甲醚进行二氧化氯催化氧化处理,在催化剂存在条件下,处理10~60分钟,去除大部分有机物;在二氧化氯催化氧化处理后,在催化剂存在条件下,进行电-多相催化氧化处理,在电场中电极间直流电压为5~15V,电流密度为每平方分米200mA~400mA的外加电场下,使苯甲醚废水中有机污染物在催化剂表面催化氧化。实验结果表明,该联用技术处理苯甲醚废水,可直接达标排放,运行费用较低 ...
孙承林, 王全义, 杨旭, 蔡钊荣
core
Enhanced Oxygen Reduction Reaction Performance of Fe‐N4 Single‐Atom Catalysts Through Fe3C Coupling
ABSTRACT Understanding the electronic factors contributing to the high oxygen reduction reaction (ORR) activity of Fe‐N4 sites remains a significant challenge due to the localized Fe 3d orbitals and their sensitivity to the coordination environment.
Shichang Cai +19 more
wiley +1 more source
ABSTRACT Magnesium hydride (MgH2) is a promising solid‐state hydrogen storage material due to its high gravimetric capacity and excellent reversibility. However, its practical application is hindered by high thermodynamic stability and sluggish reaction kinetics.
Xingyang Chen +6 more
wiley +1 more source

