Results 21 to 30 of about 20,458 (115)
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 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
Shuitu Baochi Xuebao, 2007 各种试验土壤腐殖酸的紫外吸收曲线相似,但吸收峰强度和E 465/E 665值差异较大,腐殖酸的腐殖化程度由大至小排序为：紫色潮土HA〉黄壤HA〉中性紫色土HA〉酸性紫色土HA,说明它们组成相似,结构和性质有差异。在此基础上,研究它们对辛硫磷水解的影响。结果表明,不同来源土壤腐殖酸均阻碍辛硫磷的水解,但它们的影响程度有明显的差异。腐殖酸溶液浓度越大,辛硫磷水解速率越慢,相同腐殖酸浓度下以腐殖化程度较高的紫色潮土的作用最大。初步说明辛硫磷的水解速率与土壤腐殖酸的浓度和腐殖化程度有关。
魏沙平 +3 more
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Functional Ecology, Volume 40, Issue 7, Page 2332-2344, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric ratios of carbon (C), nitrogen (N) and phosphorus (P) serve as important indicators for assessing nutrient balance in forest ecosystems, but their relationships with photosynthetic dynamics require deeper characterization.
Minghao Chen +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2006 研究了酸度对土壤溶液中铜形态的影响以及不同形态铜与黑麦草吸收及其生长的关系。结果表明：酸度强烈地影响土壤溶液中铜的化学形态，随着酸度的增加，土壤溶液中各种形态铜的含量包括水溶态铜、离子态铜及与易溶有机物结合的铜都相应增加，而且随处理铜浓度的增加不同酸度土壤上的差异更大。酸度能影响黑麦草对铜的吸收，随酸度的增加，黑麦草对铜的吸收增加。其中在对照及低铜处理中两种土壤的差异不显著，而在处理铜浓度高于50mg／kg以后两种土壤上的黑麦草铜含量差异都达显著水平。黑麦草的生长随土壤酸度的增加而变差 ...
李文庆, 张民, 束怀瑞
doaj +2 more sources
Shuitu Baochi Xuebao, 2019 以东乌珠穆沁旗的草原砂土为研究对象，采用正交试验设计的方法，研究了土壤/溶液（固/液）、初始汞浓度、溶液pH、腐殖酸、硝酸钠浓度对东乌珠穆沁旗草原砂土吸附HgCl2的影响。结果表明：固/液越小，初始汞浓度越大，土壤吸附能力越强；土壤对汞的吸附量随溶液pH，外源腐殖酸浓度，硝酸钠浓度的增大而呈现先增大后减小的趋势，当溶液pH为7.5，外源腐殖酸浓度为0.6 mg/g，硝酸钠浓度为0.08 mg/L时，土壤对汞的吸附量分别达到最大。影响砂土吸附HgCl2的因素大小依次为初始汞浓度 > 固/液 > pH ...
王道涵, 李泽龙, 汤家喜
doaj
Functional Ecology, Volume 40, Issue 7, Page 2128-2142, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Soil organic nitrogen (SON) transformation is critical for global nutrient cycling and ecosystem productivity, yet how its responsiveness to climate change differs across diverse land use types remains poorly resolved.
Xinyi Yang +10 more
wiley +1 more source
Gongye shui chuli, 1988 现在水中SO42-浓度一般都是用重量法或硫酸钡比浊法测定。实践证明前者操作步骤繁杂，费时较多，后者因水样的色度、浑浊度、和硫酸盐浓度过高时不宜采用。为了解决以上不足，本文介绍应用铬酸钡光度法测定天然水中硫酸根浓度的方法，并愿与此法感兴趣的同行们，共同研讨它的可行性。
谷文超
doaj
Functional Ecology, Volume 40, Issue 7, Page 2221-2236, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic nitrogen (N) deposition is a major driver of global change. However, its effects on the developmental plasticity of plant nutrient strategies remain poorly understood.
Quan Li +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Engineering of the catalyst interface and modulation of transition–metal d–band play critical roles in the electrocatalytic hydrogen evolution reaction (HER). Herein, a synthetic strategy is developed to fabricate nitrogen‐doped carbon nanotubes (N–CNTs)–supported Ni3Se4–CeO2 heterojunction catalysts through a facile chemical vapor deposition (
Zhiqiang Sun +10 more
wiley +1 more source