Results 11 to 20 of about 816,899 (143)
Fushe yanjiu yu fushe gongyi xuebao本研究采用10 MeV电子加速器辐照玉米淀粉/丙烯酸/N，N’-亚甲基双丙烯酰胺三元共混体系制备了淀粉基吸水树脂。通过红外光谱和热重分析仪对吸水树脂结构和热稳定性进行表征。探究了不同树脂粒径、丙烯酸中和度、吸收剂量与树脂吸收纯水以及盐水性能的关系，并进一步测试了吸水树脂在土壤中的吸水倍数、保水率和降解率。实验结果表明，电子束辐射聚合方法可成功制备具有优异热稳定性和吸水性能的淀粉基交联树脂。当丙烯酸中和度为80%、吸收剂量为10 kGy时，所得粒径为150~180 ...
蔚 江涛 +7 more
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Gaoya dianqi, 2022 环氧树脂由于其优异的绝缘密封性能被广泛应用于干式空心电抗器，然而在湿热环境中环氧树脂易吸水受潮导致材料性能劣化，严重影响设备的安全稳定运行，掌握材料的吸水与脱水行为对其实际应用具有重要意义，因此文中研究了环氧树脂在不同酸碱盐溶液中的吸水与脱水特性。实验结果表明：环氧树脂在不同溶液中的吸水过程符合菲克第二定律；吸水速率和饱和吸水率与两侧溶液浓度差有关，环氧树脂在去离子水中的吸水速率最大；脱水过程也是一种渗透作用，环氧树脂脱水速率很快，相对平衡脱水率几乎能达到100%。
陈璐 +4 more
doaj
Gongye shui chuli, 2017 采用两个相同的反应器R1和R2，研究了不同曝气控制方式下活性污泥理化特征及呼吸图谱的变化。其中R1根据活性污泥现状呼吸速率变化调整曝气量；R2根据出水水质变化调整曝气量。结果表明，R1的曝气控制方式能准确反映微生物的实际需氧量，有利于系统长期稳定运行。不同控制方式下污泥沉降性、浓度及形态差异较大，但出水水质情况相似；颗粒污泥形成期间总呼吸速率升高，稳定的活性污泥总呼吸速率及比内源呼吸速率稳定；呼吸速率相对于出水水质变化具有更高的灵敏度，能及时反映微生物的状态。
董晓宇 +3 more
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Gongye shui chuli, 2014 采用呼吸速率法评价臭氧氧化对酵母废水可生化性的改变。以最大呼吸速率、微生物累计耗氧量等作为评价指标进行了分析，结果表明，在臭氧投加量分别为50、200、300、400 mg/L下，废水中微生物的最大呼吸速率和累计耗氧量均较原水有所提高，微生物最大呼吸速率较原水分别提高了15.0%、44.7%、54.8%、98.3%，累计耗氧量分别提高了10.6%、23.0%、24.0%、10.1%
代琳琳 +4 more
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Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Capacitive deionization (CDI) using activated carbon (AC) electrodes holds great promise for seawater desalination, yet its practical application is severely constrained by the intrinsic hydrophobicity of carbon surfaces. Herein, we propose a solid‐state superhydrophilic modulation strategy that physically wet‐mixes superhydrophilic MOF ...
Ruiting Ni +4 more
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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
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Achieving rapid and selective separation of anode and cathode materials remains a critical challenge in the recycling of spent lithium‐ion batteries. This study develops a microwave‐enhanced flotation strategy for the efficient recovery of cathode and anode materials.
Peiyuan Ye +5 more
wiley +1 more source
Gongye shui chuli, 2003 研究了粘胶基活性碳纤维(ACF)在水溶液中对硝基酚的吸附行为,包括ACF对硝基酚的吸附等温线、吸附容量、再生方法、吸附和再生速率、对硝基酚的吸附选择性等。结果表明:ACF对硝基酚的吸附容量达到664mg g,该吸附是一个可逆过程,吸附和解吸速率快;采用质量分数10%的NaOH作再生剂,可以恢复吸附能力,重复进行吸附-再生过程,ACF的吸附容量不变,对硝基酚的回收率均>90%。对进水硝基酚质量浓度为9790mg L的废水,吸附处理后出水浓度达到一级排放标准,同时可以回收硝基酚。
王琳玲, 杨海, 张磊, 陆晓华
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Insights Into the Temperature‐Dependent Oxidation Mechanism of Metallic Cerium in H2O‐N2 Atmospheres
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Metallic cerium (Ce), a widely used surrogate for actinide metals, enables mechanistic studies of reactions in complex gas environments under controlled and safer laboratory conditions. Here, the oxidation behavior of Ce in H2O‐N2 mixed atmospheres was investigated from 200°C to 350°C using in situ thermogravimetry–mass spectrometry, in situ X‐
Kun Huang +10 more
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Efficient Photocatalytic Removal of Toluene by Synergistic FeCe/TiO2: Performance and Mechanism
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Efficient removal of volatile organic compounds (VOCs) in confined spaces is crucial for environments such as spacecraft and deep‐sea submarines. Metal modification is an effective strategy to enhance the light absorption capacity of titanium dioxide (TiO2) and suppress the recombination of photogenerated charge carriers.
Ke Xu +10 more
wiley +1 more source