Results 1 to 10 of about 676 (97)
Gongye shui chuli, 2022 利用阳极氧化法在钛片基底上制得TiO2电极，采用此电极在紫外光的照射下对光电催化降解化学毒剂模拟剂甲基磷酸二甲酯（DMMP）的效果进行了研究。通过场发射扫描电子显微镜、电化学工作站和UV-Vis漫反射光谱仪分别对电极进行了形貌、光电性能和光学性质表征，发现钛片基底上整齐均匀排布着管口直径约为60~80 nm的纳米管阵列，且该电极在紫外光下的光电性能优于可见光下，在200~300 nm的紫外波段下有更强的光学性能。此外，对比了该电极在光催化（PC）、电催化（EC）和光电催化（PEC ...
王思静 +3 more
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Gongye shui chuli, 2005 光电催化水处理是一种电化学辅助的光催化反应技术，通过施加外部偏压减少光生电子和空穴的复合，从而提高其量子效率使有机污染物彻底矿化。作者综述了光电催化的机理、光电催化反应的影响因素及光电催化氧化技术对几种典型有机污染物的降解情况，展望了光电催化水处理技术的发展前景，并提出了需进一步完善的研究内容。
陈佩仪 +3 more
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Gongye shui chuli压电催化材料载流子复合速率较快，应力传递与应变集中不足限制了压电响应强度，严重制约了压电催化性能的提升。针对上述挑战，以碳球为模板，成功构筑了一种新型空心异质结构钛酸锶@钛酸钡（H-S@B）压电催化剂，并探究了该材料的压电催化性能的增强机制。研究表明，H-S@B催化剂卓越的性能源于空心形貌与异质界面的协同增益效应。薄壳效应能够显著放大局域机械应力，相互交错形成的内建电场有效促进了光生/压电载流子的空间分离。H-S@B在30 min内对罗丹明B的降解一级反应速率常数k为0.172 min-1 ...
陈博然, 张璞, 敖燕辉
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Photocatalytic hydrogen peroxide (H2O2) production from water and oxygen driven by solar energy represents a highly promising green and sustainable strategy. Herein, lignin‐derived carbon quantum dots (LCDs) were strategically introduced at the heterojunction between a Bi‐based metal organic framework (Bi‐MOF) and ZnIn2S4 (ZIS).
Wanpeng Sun +8 more
wiley +1 more source
Gongye shui chuli, 2005 采用溶胶-凝胶法制备石墨负载TiO2薄膜电极，以125W高压汞灯为光源，以负载TiO2薄膜的石墨片为工作电极，铂电极为对电极，饱和甘汞电极为参比电极，建立三电极的光电催化体系，以甲基橙为降解对象，考察了初始浓度、涂敷层数、外加电压、通入空气对甲基橙降解速率的影响。研究表明，石墨是光催化剂良好的载体，外加电压可以促进光催化降解的效率，外加电压2V、涂敷3层、通入空气时对目标物质的降解效果最好。
孔祥晋 +3 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Non‐noble metal oxygen electrocatalysts are essential for low‐cost rechargeable metal‐air batteries and fuel cells, determining their energy conversion efficiency. However, such electrocatalysts are limited by inadequate bifunctional activity and stability toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).
Lixin Sun +14 more
wiley +1 more source
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
Gongye shui chuli, 2015 电催化氧化技术是水处理领域的一门新兴技术,具有环境兼容性好的优势。采用Ir-Ta-Sn掺杂电极作阳极、不锈钢电极作阴极处理垃圾渗滤液,并考察极板间距、电催化氧化电压、起始pH和电催化氧化时间对电解效果的影响。实验结果表明,酸性条件下进行降解较有利;极板电压和极板间距对降解效果均有不同程度的影响;电解时间超过4 h时,对COD的降解没有显著影响。当pH为3、极板电压为24~36 V、极板间距为1.5~2.0 cm及反应时间为4 h时,对垃圾渗滤液的COD去除率可达50%左右。
范荣桂, 张世强, 姜清风, 许倩
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT With the rapid development of flexible electronics, there is an increasing demand for hydrogel‐based sensors with rapid fabrication, robust mechanical performance, and stable sensing behavior. Herein, a green and ultrafast self‐catalytic strategy is developed to fabricate a multifunctional hydrogel based on tannic acid‐coated cellulose ...
Jin Qian +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The regeneration of osteoporotic bone defects is severely hampered by compromised endogenous healing capacity, demanding advanced strategies that actively orchestrate pro‐osteogenic microenvironments. Here, we report an integrated, self‐powered osteo‐regenerative system that uniquely leverages a dual ultrasound‐responsive piezoelectric ...
Bing Tan +6 more
wiley +1 more source