Results 71 to 80 of about 602 (238)
Preparation of montmorillonite/biochar composite materials and their adsorption properties for Cr(Ⅵ)
Gongye shui chuliTo address the issues of severe heavy metal wastewater pollution and the scarcity of effective treatment methods, the typical pollutant Cr(Ⅵ) was selected as the research object, montmorillonite (MT)/modified biochar (ZBC) composites were prepared via ...
WANG Zixuan +5 more
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The effects of inorganic anions and Fe(Ⅲ) on Cr(Ⅵ) photoreduction in a solution with different pH
, 2014 鉻的用途隨著工業發展及人類生活水準的提高而日益增加，相對地，鉻污染環境的可能性也隨其用途的增加而加劇。鉻在水體中通常以三價鉻和六價鉻兩種形態存在，兩者的物化特性和毒性相差甚大。Cr(Ⅲ)與固體粒子具高反應性，可直接沈澱或吸附在懸浮粒子上，形成難溶之氫氧化物，移動性低故溶液中Cr(Ⅲ)濃度較低，一般而言對環境危害不大；反之，Cr(Ⅵ)溶解度大，移動性高，且毒性較Cr(Ⅲ)強(約高300倍)。因此，根據化學行為和毒性間的差異，多半將環境中之Cr(Ⅵ)還原成Cr(Ⅲ)來降低其危害風險。 許多研究已證實，
許嘉戀, 許嘉戀, Chia-Lian Hsu
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Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina +11 more
wiley +1 more source
Photocatalytic Degradation of Cr （Ⅵ） and 2-Naphthol in Water Using Sulfur-doped TiO2 Catalyst
, 2015 采用自制的S/Ti O2作为光催化剂,在可见光下进行光催化降解2-萘酚和还原Cr（VI）的实验。考察了S/Ti O2投加量、2-萘酚初始浓度和p H值对2-萘酚降解光催化性能的影响及Cr（VI）~2-萘酚混合体系光催化反应的研究。结果表明：S/Ti O2投加量为2.0 g/L,2-萘酚溶液初始浓度18.75 mg/L,p H值为6~7时2-萘酚光催化降解效果最好;混合体系中的2-萘酚的降解率及Cr（VI）还原率均较相应的单一体系高,Cr（VI）的还原与2-萘酚的氧化之间产生了协同效应。Cr（VI）和2 ...
张博涵, 李国磊, 夏璐, 邓啟敏
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu +10 more
wiley +1 more source
Predictive Ability of Plasma p‐tau217 for β‐Amyloid Status: A Prospective Multicenter Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Plasma tau phosphorylated at threonine 217 (p‐tau217) measured with fully automated platforms has shown high accuracy for Alzheimer's disease (AD) diagnosis, but real‐world multicenter data remain limited. We aimed to validate the diagnostic performance of p‐tau217 for identifying AD pathology in a real‐world multicenter cohort ...
Miquel Massons +33 more
wiley +1 more source
Simultaneous Removal of TCE and Cr(Ⅵ) in Groundwater by Using Bentonite-supported Nanoscale Fe/Ni
Yankuang ceshi, 2018 BACKGROUND The injection of nanoscale zero valent iron particles (nZVI) into groundwater has been recently developed as an in-situ groundwater remediation technology.
DENG Ri-xin +4 more
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Study on Treatment of Cr (VI)-Containing Wastewater with Nitric Acid Modified Activated Carbon
, 2011 After activated carbon is oxidized and modified with nitric acid (1:1), its cation exchange capacity can amount to 1.840 mmol • g-1. The modified activated carbon is used as adsorbent for the treatment of Cr (Ⅵ)-containing wastewater at room temperature,
Xiu Ling Song, Hui Qian
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Cognitive impairment is a common non‐motor symptom in Multiple Sclerosis (MS), negatively affecting autonomy and Quality of Life (QoL). Innovative rehabilitation strategies, such as semi‐immersive virtual reality (VR) and computerized cognitive training (CCT), may offer advantages over traditional cognitive rehabilitation (TCR ...
Maria Grazia Maggio +8 more
wiley +1 more source
Gongye shui chuli, 2023 通过等离子改性和离子印迹技术制备聚丙烯（PP）基Cr（Ⅵ）印迹纤维并进行表征，考察了印迹纤维吸附Cr（Ⅵ）过程中的影响因素，并与非印迹纤维的吸附效果进行对比。傅里叶红外光谱和亲水性分析结果表明PP纤维上成功接枝了丙烯酸（AA）和三乙烯四胺（TETA）单体，制得I-PP-g-AA-TETA印迹纤维。印迹纤维对Cr（Ⅵ）的吸附量随pH的增加先略增大后降低，在pH=3时达到最高167 mg/g。印迹纤维对Cr（Ⅵ）的吸附速率很快，35 min时即可达到饱和。随Cr（Ⅵ）平衡浓度增大，印迹纤维对Cr（Ⅵ ...
陈金帅 +4 more
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