Results 21 to 30 of about 1,000,418 (169)

难降解石油化工废水臭氧氧化处理催化剂研究进展

open access: yesGongye shui chuli, 2020
随着原料的重质化、劣质化以及炼油化工一体化的发展,石油化工废水中的难降解有机污染物(ROCs)类型更加丰富。催化臭氧氧化(COP)已被验证是矿化这类ROCs的有效处理技术,臭氧催化剂关乎处理效能和成本,是COP技术能否应用于工程实践的关键。综述了金属氧化物类、金属负载类、分子筛类以及天然矿物类等臭氧催化剂的研究进展,并对其催化活性位构成、催化氧化效果以及催化氧化ROCs机制等进行探讨。综合分析催化活性、制备成本以及量产规模等因素 ...
陈春茂   +5 more
doaj  

f–f Transition in Er(OH)3 Promotes Photosynthesis of H2O2 Coupling With Oxidation of Benzylamine Over Sodium Poly(heptazine imides)

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT f–f electronic transitions of rare‐earth elements typically exhibit unique physicochemical properties that benefit the photocatalytic performance of the catalysts containing the elements. Although conventional rare‐earth metal oxides or single‐atom doping in semiconductors have been extensively studied, the construction of heterojunction ...
Yang‐Sen Xu   +6 more
wiley   +1 more source

Mo-Na复合催化剂制备及其在医药废水处理中的应用

open access: yesGongye shui chuli, 2019
制备了Mo-Na复合催化剂用于催化湿式氧化处理医药废水。结果表明:Mo-Na复合催化剂具有较大的比表面积,热稳定性较好。随着催化剂用量的增加、反应温度的提高及反应时间的增加,催化湿式氧化对废水中污染物的去除效率均逐渐提高,且反应过程中催化湿式氧化体系的去除效率明显高于湿式氧化体系。反应温度190 ℃、催化剂为1.5 g/L、反应时间3 h时,催化湿式氧化体系对废水TOC与COD去除残余率分别为0.103 9、0.137 1。随着催化剂回用次数的增加,催化剂反应活性降低 ...
陈晨   +4 more
doaj  

An Ultrasound‐Triggered Antibacterial Hydrogel With Integrated Antioxidant and Angiogenic Functions for Infected Wound Care

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Managing diabetic wounds requires simultaneously addressing their infectious, oxidative, and regenerative impairments. To address this, this study integrates a piezoelectric BiOCl@CuSe heterojunction (PFM‐verified) into an injectable F127/HA hydrogel, creating an ultrasound‐responsive smart dressing.
Jiayan Guo   +5 more
wiley   +1 more source

炼化污泥基催化剂协同臭氧处理难降解废水的研究

open access: yesGongye shui chuli, 2020
将炼化剩余活性污泥进行热解与碱处理,成功制备出可协同臭氧处理难降解废水的污泥基催化剂。在初始pH分别为5.8、7.0、10.0时处理硝基苯废水,与单独臭氧氧化相比,污泥基催化剂协同臭氧氧化处理的TOC去除率分别提高了34.1%、46.5%、27.9%。且在中性条件下的催化臭氧氧化处理过程中,与煤基活性炭相比,该污泥基催化剂能将TOC去除率提高15.7%。催化剂表面丰富的金属氧化物和含碳官能团构成复合活性中心,催化臭氧分解产生自由基。
王郁现, 刘璐, 郭绍辉, 陈春茂
doaj  

Metal‐Doped Carbon‐Based Nanomaterials: Photothermal Mechanism Innovation and Precision Therapy Advancement in Antibacterial and Antitumor Applications

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Metal‐doped carbon‐based nanomaterials (M‐CNM) play a strategically significant role in next‐generation precision antibacterial and antitumor therapies, as they integrate synergistic photothermal ablation, catalytic reactive oxygen species (ROS) generation, and multimodal imaging capabilities. However, their clinical translation is hindered by
Pengxiang Liu   +5 more
wiley   +1 more source

多相催化臭氧氧化法处理印染废水的研究

open access: yesGongye shui chuli, 2013
采用浸渍法制备了活性炭负载铁锰氧化物的催化剂用于对印染废水的多相催化臭氧氧化处理,当铁锰质量比为1∶2时,催化剂处理效果最佳。多相催化臭氧氧化工艺的最佳运行参数为:处理时间60 min、臭氧通气量0.2 L/min、催化剂投加质量20 g、废水pH=5。经多相催化臭氧氧化处理后,印染废水的COD、氨氮、TP、色度去除率分别为81.7%、90.2%、97.6%、99.1%,去除效果较好。
董淑福
doaj  

Gadolinium‐Induced Activation of CoNiO2 for Efficient Oxygen Evolution: A Structural and Electronic Modulation Approach

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Multicomponent transition metal oxides (TMOs) incorporating rare‐earth (RE) elements have emerged as promising materials for the oxygen evolution reaction (OER). However, knowledge of how to regulate the structure of TMO‐based nanomaterials through RE incorporation to enhance catalytic performance remains limited.
Bolin Zhao   +6 more
wiley   +1 more source

Ag3PO4光催化-臭氧催化氧化协同降解苯酚

open access: yesGongye 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
doaj  

Constructing Asymmetric Cu–OV–Mn Sites on MOFs‐Derived Cu‐MnOx Microspheres With Abundant Oxygen Vacancies for Enhanced Photothermal VOC Degradation

open access: yesRare 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
wiley   +1 more source

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