Results 1 to 10 of about 1,156 (113)
Gongye shui chuli, 2023 喹诺酮类抗生素的大量排放对人体健康和生态环境产生了严重危害。光催化降解可将喹诺酮类抗生素转化为易于生物降解的化合物或者毒性较小的无机分子。掺杂或构建异质结等方式可以提高光催化剂的稳定性、扩大激发光波长范围及抑制光生电子-空穴对的复合。综述了光催化的基本原理、常用半导体光催化材料的特性及其对几种常见喹诺酮类抗生素（环丙沙星、诺氟沙星、左氧氟沙星等）的降解。总结了不同光催化材料降解喹诺酮类抗生素的效率，分析了光催化材料产生自由基的机制及抗生素降解的中间产物。针对光催化法面临的一些问题提出了未来的研究方向 ...
刘宏, 庞族族, 石林, 罗士聪
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Gongye shui chuli, 2023 以Ag3PO4为光催化剂并通入臭氧构建了光催化-催化臭氧氧化协同体系，大幅度提高了对苯酚的降解效率。协同处理6 min后可将30 mg/L的苯酚溶液完全降解，在达到相同降解效率时，与单一氧化技术相比时间缩短了3倍。协同体系降解性能的提升源于臭氧的亲电特性，不仅加速了光生电荷的迁移，提升了光催化降解活性；同时还有效提高了臭氧利用效率，催化分解臭氧能产生更多的羟基自由基（·OH），协同促进了苯酚的降解矿化性能。进一步通过猝灭实验验证了·OH是协同降解体系的主要活性物种，考察了臭氧浓度、催化剂投加量 ...
安伟佳 +4 more
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Gongye shui chuli, 2021 针对钻井废液中有机物难降解的难题，首先利用两相法制备了单斜晶相的超薄二维BiVO4纳米片，然后利用光还原法在BiVO4表面沉积Au纳米粒子，制得超薄二维Au@BiVO4纳米片，用于光催化降解聚丙烯酰胺（HPAM）。考察了催化剂的制备条件、催化剂投加量、HPAM初始浓度对光催化降解性能的影响，探究了其光催化降解HPAM的机理。结果表明，当n（Au）：n（BiVO4）为1：100时，所得到的产品对HPAM的光催化降解效果最好，其降解效果主要依靠催化剂在光照条件下产生·OH来实现。
董泽坤 +5 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT With the growing severity of volatile organic compounds (VOCs) pollution, metal‐organic frameworks (MOFs)‐derived materials offer a promising solution through efficient photothermal catalysis. In this paper, M‐MnOx (M = Cu, Ni, Co, Fe) catalysts derived from manganese‐based MOFs were successfully prepared by the sacrificial template method and
Yizhong Liao +10 more
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Zhejiang Daxue xuebao. Lixue ban, 2017 利用无机原料水热合成法制备BiOI/BiOBr复合可见光催化剂，通过XRD、SEM、EDS、DRS、I-t响应曲线等手段对催化剂的物相组成和光化学性能进行了系统表征.以RhB为目标污染物，考察了催化剂的光催化活性并对最优比例催化剂的稳定性进行评价，通过ESR分析和自由基捕获实验探究了RhB的光催化降解机制.研究结果表明：无机原料水热合成法可成功制备纯度高、结晶性能良好的BiOI/BiOBr复合可见光催化剂；BiOI的复合降低了BiOBr光催化剂的电子-空穴的复合，拓宽其可见光响应范围 ...
ZHANGQun(张群) +6 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The residue of mesotrione poses an increasingly serious threat to the environment and human health. Thus, it is essential to establish a platform that integrates rapid detection and efficient degradation. Covalent organic frameworks (COFs) materials have garnered significant attention owing to their designability.
Yong Xie +3 more
wiley +1 more source
Hierarchical Structured TiO2/Boron‐Doped Diamond for Efficient Photo‐Electrocatalytic Degradation
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The discharge of refractory organic dye wastewater poses a significant threat to the ecological environment, necessitating the development of efficient treatment technologies. Herein, a uniform TiO2 array (TiO2‐AR) electrode is fabricated using a combination of magnetron sputtering and a mask plate process with a boron‐doped diamond (BDD ...
Haiming Sun +10 more
wiley +1 more source
Gongye shui chuli, 2023 以四苯基硼化钠和尿素作为原料，通过热聚合法，利用热诱导前驱体发生缩聚反应，合成硼掺杂石墨相氮化碳（CNB）。然后，将ZrO2与CNB混合均匀，通过煅烧法制备了不同ZrO2含量的复合光催化剂ZrO2-CNB。以甲基橙作为降解目标化合物，探究了ZrO2-CNB的紫外光催化性能，并通过加入各种自由基清除剂，考察了在紫外光照射条件下光催化反应体系中生成的活性物种。研究表明：在所制备的复合光催化剂ZrO2-CNB中，含有质量分数为0.75%的ZrO2的ZrO2-CNB催化剂具有最高的紫外光催化性能 ...
陈卫, 胡文丽, 崔玉民
doaj
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Layered double hydroxides (LDHs) are attractive non‐noble catalysts for overall water splitting (OWS), yet their hydrogen evolution reaction (HER) activity is often limited by suboptimal *H adsorption and a paucity of accessible sites. Herein, we introduce an oxygen‐vacancy (Ov) engineering strategy to construct ultrathin Ni‐Fe LDH nanosheets ...
Qi Liu +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo +6 more
wiley +1 more source