Results 1 to 10 of about 8,294 (99)
Gongye shui chuli, 2006 通过振荡吸附实验，研究了坡缕石-钢渣颗粒吸附剂的制备方法及颗粒吸附剂在含铜溶液中的吸附特性。结果表明，制备颗粒吸附剂的优化条件为：m（坡缕石）：m（钢渣）=1001：00，在400℃下焙烧2 h。颗粒吸附剂对铜的吸附容量高达169.5mg/g，吸附等温线属Langmuir型。吸附剂的再生实验表明：再生后吸附剂的吸附量下降平缓，可以重复使用。
羊依金 +3 more
doaj +2 more sources
Gongye shui chuli, 2014 以脱水污泥和谷壳为原料制备含碳吸附剂，测定了吸附剂对碘和亚甲基蓝的吸附值，研究了其对亚甲基蓝和活性艳红的吸附动力学行为。结果表明：吸附剂对碘和亚甲基蓝的吸附值分别为480 mg/g和69.9 mg/g，说明吸附剂内部孔道丰富，与电镜分析结果吻合，吸附剂对两种染料的平衡吸附量随染料初始浓度和吸附温度的升高而增加，伪二级动力学模型最能描述吸附剂对两种染料的吸附，吸附剂对两种染料吸附的活化能均较小，主要为物理吸附。
刘雪成 +3 more
doaj +2 more sources
Gongye shui chuli, 2018 按照金属基吸附剂、炭基吸附剂、黏土矿物类吸附剂、高分子生物类吸附剂、工业副产物或废弃物、纳米材料、陶粒等吸附剂类型，全面综述了近些年来国内外在含氟水吸附处理中吸附材料的研究开发与应用现状。着重介绍了传统吸附材料的改性和一些新型吸附材料的合成、吸附性能和机理，并对今后氟吸附材料的发展方向进行了展望。
赵迎新 +4 more
doaj +2 more sources
Gongye shui chuli, 2016 以天然铁矾土为原料制备得到改性铁矾土除砷吸附剂，考察了反应时间、pH、竞争离子对该吸附剂吸附砷效能的影响，并对吸附机理进行了分析。结果表明：该吸附剂对废水中的砷具有较高的吸附效能。在反应时间为60 min内，该吸附剂对砷的吸附呈快速上升趋势；该吸附剂对砷的饱和吸附量可达19.2 mg/g；酸性与中性的pH环境有利于砷的吸附去除；废水中的PO43-与砷存在较强的竞争吸附，而SO42-、NO3-与砷的竞争吸附作用较小。
刘兴旺, 陈建宏, 胡晞
doaj +2 more sources
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Rationally designing an electrocatalyst to achieve stable and efficient urea oxidation reaction (UOR) is crucial but still challenging, especially for ampere‐level application. Herein, Mn and Fe dual‐doped Ni0.85Se (Mn/Fe–Ni0.85Se) catalyst is synthesized via a facile and scalable electrodeposition and followed by selenization.
Guanglin Zhu +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT A central challenge in alkaline water electrolysis is the development of hydrogen evolution reaction (HER) electrocatalysts that simultaneously maintain high activity and structural stability at industrial current densities. Hydroxide‐based supports that facilitate water dissociation are particularly susceptible to over‐reduction and ...
Feng Chen +9 more
wiley +1 more source
Gongye shui chuli, 2020 以煤渣为原料，利用多种酸、碱、盐化学试剂改性制备吸附剂，探讨了溶液pH、Pb2+初始质量浓度、吸附剂投加量等因素对Pb2+吸附效果的影响，采用3种吸附动力学模型和3种等温吸附模型研究Pb2+的吸附行为，并评价了吸附剂的浸出毒性。结果表明：硫酸改性后，硫酸改性煤渣（SC）的吸附容量是改性前煤渣的4.55倍，改性煤渣的最佳吸附pH为7.0；对Pb2+的吸附过程符合拟二级反应动力学模型，是物理-化学复合吸附过程；等温吸附过程符合Langmuir模型，最大吸附量可达到131.58 mg/g ...
杨青 +6 more
doaj +2 more sources
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
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT The commercialization of lithium‐sulfur batteries (LSBs) faces dual challenges of sluggish sulfur redox kinetics and lithium polysulfides (LiPSs) shuttling. Herein, we demonstrate a synergistic strategy combining multidimensional structural confinement with d‐band center modulation to simultaneously suppress LiPSs diffusion and catalyze ...
Shibo Rong +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Nickel‐based materials are highly remarkable as promising transition metal catalysts for the electrochemical hydrogen evolution reaction (HER) in alkaline electrolytes. However, their electrochemical performance is limited by an unfavorable d‐band energy (Ed) level. Herein, we showcase an effective lattice‐strain strategy to modulate the Ed of
Shengjue Deng +10 more
wiley +1 more source