Results 21 to 30 of about 1,575,706 (129)
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Heteroatom coordination regulation is an effective strategy to enhance Fenton‐like catalysis of single atom catalysts, yet its impact on the local microenvironment of active sites still requires in‐depth investigation. Herein, Cl2–Fe–NC catalysts with axial Cl coordination are prepared.
Jing‐Hao Yan +6 more
wiley +1 more source
Gongye shui chuli, 2019 探讨了氧化铝对水体中硅酸的吸附去除潜力、影响因素及机理。结果表明，pH 4~8时吸附量随pH、吸附剂投加量的增大而增加，说明氧化铝具有吸附去除硅酸的能力。吸附过程符合Langmuir吸附等温模式，最大吸附量达39.82 mg/g。结合27Al MAS NMR与SEM-EDX分析，氧化铝吸附硅酸的机理是通过硅酸分子与氧化铝中4配位的铝发生化学反应，硅原子取代原来Al-O-Al键上的铝原子形成Al-O-Si键而被固定在氧化铝表面。
韩珏, 杜聪, 刘忠新, 白淑琴
doaj +2 more sources
, 2000 固体吸附制冷是利用低温热源的一种新型制冷方式。本文对多种固体吸附制冷工质对进行了试验研究，得到不同温度下的吸附曲线和解吸曲线，并根据D-A方程进行了线性拟合得到各工质对的W_0、D值。通过分析和比较，在所选工质对中，活性炭纤维-甲醇的吸附解吸综合性能最好，粉末活性炭的性能也较好，但要求的解吸温度较高。乙醇代替甲醇作制冷剂是可行的，但甲醇-乙醇混合物作制冷剂是不可行的。本研究还设计了一种新型太阳能制冷-热水两用机，采用活性炭粉末-甲醇为工质对，两个吸附器，每个吸附器内装4kg活性炭粉末 ...
毛雪梅
core +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT In this work, In2O3 and three rare earth (RE)‐doped In2O3 composites (Ho, Yb, and Sm‐doped) were prepared via the hydrothermal method. Compared with In2O3 sensors, those fabricated from the three composite materials (RE–In2O3) exhibit varying degrees of enhanced response toward ethylene glycol (EG) gas. At 35% relative humidity (RH) and 250°C,
Chang Liu +9 more
wiley +1 more source
Gongye shui chuli, 2023 为阐明活性炭吸附废水中有机污染物在结构方面的关键影响因素，在对5种柱状活性炭开展FT-IR和N2等温吸脱附表征的基础上，以煤化工实际高盐有机废水为处理对象，通过静态吸附实验探究了具有不同孔隙结构特征的柱状活性炭的吸附行为，并进一步将这5种活性炭吸附性能的量化结果与孔隙结构特征逐一进行关联，线性拟合结果表明：柱状活性炭的介孔孔容及总孔容与其对有机物的平均吸附速率和吸附容量呈现良好的线性关系（R2>0.90），是影响吸附有机污染物能力的决定性结构因素；比表面积和平均孔径对吸附性能的影响依次减弱 ...
卓佐西 +6 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Improving catalytic activity for volatile organic compounds (VOCs) oxidation and enhancing water‐tolerance stability remain challenging in practical applications. Herein, a composite catalyst integrating Pt/CoOx‐NiOx mesoporous nanorods (MNRs) with a phenyltriethoxysilane (PhTES)‐modified surface was fabricated via a facile route for toluene ...
Jiaqin He +13 more
wiley +1 more source
Gongye shui chuli, 2021 采用简单溶液法合成了分等级花状磁性氧化镍（NiO）微球，研究了制备的花状磁性NiO微球对水中染料刚果红的吸附效果，并探讨了吸附机理。结果表明，花状磁性NiO微球对刚果红的最大吸附量达155.9 mg/g，吸附机理可归因于带正电荷的吸附剂表面与阴离子染料刚果红之间的静电相互作用。磁性NiO微球能通过磁铁快速从溶液中分离，且对阴离子染料具有良好的选择吸附性能。
乐垚, 刘亮君, 亓丽芳, 王超
doaj +2 more sources
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Platinum (Pt) single‐atom catalyst (SAC) shows great promise for hydrogen evolution reaction (HER), but faces a huge challenge in activity enhancement due to the isolated single‐atom sites. Fabricating support with partially amorphous (pa) structures to realize the synergetic interaction in neighboring single atoms could facilitate H2O ...
Yanhui Song +9 more
wiley +1 more source
Gongye shui chuli, 2020 研究了新型吸附材料Zn-MOF-74对水体中重金属Cd（Ⅱ）的吸附性能和吸附机理。结果表明，吸附过程较好地符合Langmuir模型、Temkin模型、D-R模型和准二级动力学模型，最大吸附量为16.77 mg/g；吸附过程为物理吸附和化学吸附共同作用，且为自发的放热反应。采用Zn-MOF-74处理0.5 mg/L的含镉废水，有效时长可达36.25 h，Cd（Ⅱ）去除率>90%；NaCl溶液的解吸率可达到85%。吸附位点主要集中在孔道中，有静电作用、化学作用和氢键作用。
吴成晨 +5 more
doaj +2 more sources