Results 21 to 30 of about 1,505,098 (127)

From Tetracycline to Sulfamethoxazole: Photocatalytic Degradation and Mechanistic Insights in Aquatic Environments

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT The pollution caused by antibiotics to aquatic ecosystems is becoming increasingly serious, thus more effective treatment methods are urgently required. Although the photocatalytic degradation behavior of tetracycline (TC) is relatively well understood, sulfamethoxazole (SMZ), an emerging pollutant originating from large‐scale livestock ...
Yihang Yang   +6 more
wiley   +1 more source

光电催化降解染料废水

open access: yesGongye shui chuli, 1999
作者制备了纳米结构TiO2 膜及光透电极,并以此作为工作电极和光催化剂,研究了光电催化方法对水溶液中染料的降解效果。分析了温度、初始浓度、外加偏压等工艺因素对光电催化降解的影响。并进行了光降解和光催化降解方法的对比试验。同光致分解、光催化降解相比,光电催化降解对三种染料一品红、铬蓝K、铬黑T 溶液的降解效果最好。
姚清照, 刘正宝
doaj   +2 more sources

Balancing d‐π/d‐π* Interactions: Valence‐Engineered Pd/TiO2 for Photocatalytic Acetylene Semi‐Hydrogenation

open access: yesRare 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

Sulfur Vacancy Modulation‐Induced Electronic Rearrangement in S‐Scheme BaTiO3@ZnIn2S4 Heterojunctions: Toward Synergistic Piezo‐Photocatalytic H2O2 Evolution

open access: yesRare 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

Cu-P复合改性对g-C3N4可见光催化性能的影响

open access: yesGongye shui chuli, 2023
以P掺杂的石墨相氮化碳(P-C3N4)为基材,将其与不同质量分数的氯化铜混合后继续焙烧,制备出Cu-P复合改性的石墨相氮化碳可见光光催化剂(Cu/P-C3N4)。对样品的结构、光电性能进行了X射线衍射(XRD)、能谱(EDS)、傅里叶变换红外光谱(FT-IR)、光致荧光光谱(PL)、电化学阻抗谱(EIS)等一系列表征。通过可见光催化降解亚甲基蓝考察了它们的光催化活性。结果表明,Cu-P复合改性提高了催化剂的电子转移速率且降低了光生电子空穴对的复合速率,有效改善了其光催化性能。可见光照射120 min ...
艾兵   +4 more
doaj   +2 more sources

Liquid/Solid EGaIn@Ag Heterostructure Catalyst Enabling CO2 Electroreduction to CO in a Three‐Membrane Electrolyzer With Co‐Production of K2CO3 and Cl2

open access: yesRare 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

光电催化氧化法降解杀菌剂废水的研究

open access: yesGongye shui chuli, 2011
采用光电催化氧化法降解季铵盐类杀菌剂十二烷基二甲基苄基氯化铵(1227)废水。以紫外灯为光源,DSA 电极为阳极,石墨电极为阴极,考察了阳极材料、光催化剂投加量、外加电场强度、极板间距、初始pH 对COD 去除率的影响。结果表明:光电催化氧化过程的最佳外加偏压为20 V,光催化剂最佳投加质量浓度为0.3 g/L,极板间距为0.5 cm,pH 为8.27,反应3 h 后1227 废水的COD 去除率可达到87%,TOC 去除率达到92%。光电催化氧化法的降解率高于单纯的光催化氧化和电催化氧化降解率之和 ...
王晓囡, 滕厚开, 谢陈鑫, 赵慧
doaj   +2 more sources

High‐Entropy Alloys for Photocatalysis: From Cocatalyst Engineering to Multifunctional Active Platforms

open access: yesRare 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

Surface Reconstruction of Ce‐Ion‐Doped Fe‐MOF for Efficient Water Oxidation

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Surface reconstruction plays an important role in catalysts for the efficient oxygen evolution reaction (OER). In this work, we report the designed synthesis of the Ce‐ion‐doped Fe‐MOF (CFM) directly grown on nickel foam via a facile solvothermal route.
Fangfang Zhang   +8 more
wiley   +1 more source

电气石/TiO2复合材料的光催化体系研究

open access: yesGongye shui chuli, 2009
采用溶胶凝胶技术制备电气石/TiO2复合光催化材料,研究其光催化反应体系中的溶解氧含量、水分子团结构等,并结合光催化降解甲基橙实验对光催化反应机理进行了初探。研究表明,随着电气石/TiO2复合光催化材料质量分数的增加,反应体系中溶解氧含量的增长速度明显加快,但溶解氧含量的饱和值十分接近,均在8.15mg/L附近。同时,电气石/TiO2复合光催化材料的质量分数为0.1%时,静置2h后的水样峰宽由93.
冯艳文, 张青, 朱华静
doaj   +2 more sources

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