Results 21 to 30 of about 6,167 (103)
Gongye shui chuli, 2020 工业废水中全氟辛烷磺酸（PFOS）浓度低，直接应用化学法降解能耗较高。采用膜分离与UV/SO32-光降解的组合工艺对其进行处理，研究了此组合技术的处理效果，并考察了影响降解率的因素。结果表明，反渗透膜可有效富集PFOS溶液，高强UV/SO32-体系可高效降解该富集溶液。提高溶液初始pH、SO32-浓度、紫外光强，均有利于PFOS降解率的提高，而PFOS初始浓度的提高会降低其降解率。
顾玉蓉 +5 more
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Global Change Biology, Volume 32, Issue 7, July 2026.Grassland recovery following nutrient cessation is asymmetric and strongly shaped by nutrient enrichment history. Higher nutrient addition rates and longer enrichment duration caused larger departures from control conditions, with biomass recovering more rapidly than species richness over decadal timescales.
Miao He +8 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song +4 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu +5 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Environmental pollution across water, air, and soil systems poses escalating threats to human health and ecosystem stability, driven by heavy metals, persistent organic pollutants, particulate matter (PM), bioaerosols, and toxic gases. Conventional remediation technologies often suffer from limited selectivity, insufficient efficiency, and the
Junjie Qi +6 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Atomically dispersed iron–nitrogen–carbon (Fe‐N‐C) catalysts have emerged as promising alternatives for oxygen reduction reaction (ORR) owing to their highly atomic utilization. However, maintaining both Fe atomic dispersion and dense Fe‐Nx sites (typically below 2 wt%) in Fe‐N‐C catalysts is still a key challenge.
Lijuan Wang +6 more
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Shuitu Baochi Xuebao, 2007 利用自然降雨影响下的农田为试验样地,分析了降雨前后土壤颗粒组成与养分含量的变化,探讨了流失泥沙颗粒组成与养分的变化特征。结果表明,在降雨后,西瓜地与油菜地表土颗粒组成呈现粘粒与粉粒含量减少,砂粒含量相对增加的趋势;土壤养分含量都有不同程度的下降,其中水解氮与速效磷下降的幅度很大,西瓜地与油菜地水解氮降雨后降幅分别为9.67%和7.99%,速效磷的降幅分别为9.20%和8.76%;全氮养分降幅很小,西瓜地与油菜地分别为2.17%和1.54%;流失泥沙细小颗粒含量与养分含量随时间基本都呈降低的变化趋势 ...
胡宏祥, 洪天求, 马友华, 刘坤
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Functional Ecology, Volume 40, Issue 5, Page 1428-1442, May 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric imbalance caused by nitrogen (N) deposition typically exacerbates phosphorus (P) limitation in plants. However, it remains unclear whether this effect extends to soil microbes, particularly those in the rhizosphere.
Jipeng Wang +5 more
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High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li +5 more
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Gongye shui chuli针对油田采出水吸附提锂所得富锂液存在锂浓度低、杂质含量高，易造成后续碳酸锂沉淀过程能耗高、纯度差等问题，本文系统开展了膜集成工艺用于富锂液纯化与浓缩的研究。以中原油田吸附提锂富锂液为研究对象，构建了“反渗透（RO）初步浓缩→纳滤（NF）深度除杂→两级电渗析（ED）串联浓缩”的梯级耦合工艺，考察该集成体系整体分离浓缩效果。结果表明：RO单元将富锂液中Li+从167 mg/L浓缩至2074 mg/L，浓缩倍数达12.42倍，且对Li⁺截留率不低于99.2%；NF单元对Ca2+、Mg2+的去除率分别达82.3%
王莲莲, 袁伟红, 单威威
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