Results 1 to 10 of about 284 (77)
Preparation of mordenite composite membranes(丝光沸石复合膜的制备及其影响因素)
Zhejiang Daxue xuebao. Lixue ban, 2005 采用在多孔氧化铝支撑体上预涂纳米丝光沸石晶种，再用水热晶化的方法制备丝光沸石复合膜.系统考察了反应母液陈化、碱度、盐以及反应温度等因素对丝光沸石晶体在预涂晶种支撑体上成膜化过程的影响.研究发现，膜表面晶体间空隙随反应母液陈化时间的增加而略有增大；高碱度的反应母液不利于连续丝光沸石复合膜的形成；反应母液中盐的浓度对丝光沸石晶体沿各个轴方向上的生长速率有不同程度的影响，膜表面晶体间空隙随盐浓度的增加而增大；晶化温度过高，容易形成细棒状晶体，导致晶体间空隙增大.
LIGang(厉刚) +3 more
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Shuitu Baochi Xuebao, 2021 在尿素减量施用条件下，探究添加酸化沸石（SF）对氮素淋失及籽粒氮肥利用率的影响。通过等温吸附试验，结合土柱淋溶和玉米盆栽试验，研究酸化沸石对NH4+—N和NO3-—N的吸附性能，以及不同施氮梯度下，酸化沸石对氮素淋失和氮肥利用率的影响，试验分别设置农民习惯施肥（CN）、氮肥减量15%（CN1）、氮肥减量30%（CN2）3个施氮梯度并分别添加土重0.2%的酸化沸石（CN+SF、CN1+SF、CN2+SF）。结果表明，酸化沸石对NH4+—N和NO3-—N的最大吸附量分别为25.44，31.59 mg/g ...
孔柏舒 +5 more
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Post-synthesis of Ti-mordenite using natural zeolites(天然沸石同晶取代制备钛丝光沸石)
Zhejiang Daxue xuebao. Lixue ban, 2010 以优质的天然丝光沸石为原料,采用液固相置换反应,经多步“脱铝-补钛”的方式,制备了含钛的丝光沸石.运用X射线粉末衍射(XRD)、紫外可见光谱(UV-Vis)、X射线光电子能谱(XPS)以及ICP等手段对制备的钛丝光沸石进行了表征,结果表明钛已成为天然丝光沸石的骨架元素.多步脱铝-补钛的方式可有效调控骨架钛的含量和避免骨架外钛物种的生成.
YANGJing(杨靖) +3 more
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Evidence-Based Complementary and Alternative Medicine, Volume 2014, Issue 1, 2014., 2014 Objectives. To apply modern text‐mining methods to identify candidate herbs and formulae for the treatment of diabetic nephropathy. Methods. The method we developed includes three steps: (1) identification of candidate ancient terms; (2) systemic search and assessment of medical records written in classical Chinese; (3) preliminary evaluation of the ...
Lei Zhang +7 more
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模拟酸雨条件下生物炭配施沸石对江西某钨矿区Pb、Cd、W的淋溶效应
Shuitu Baochi Xuebao, 2021 为解决江西某钨矿区钨及其他重金属污染问题，通过室内模拟酸雨淋溶试验，研究在不同pH （3.1，4.5，5.8）酸雨条件下，添加稻壳生物炭（BC）、天然沸石（ZE）、稻壳生物炭—天然沸石（CO）改良剂对土壤Pb、Cd、W的固定效果。结果表明，酸雨增加了重金属的溶出风险，pH越低，风险越大。添加BC、ZE、CO有效提高土壤的酸缓冲能力，平均分别使得淋溶液pH增加0.53，0.23，0.58个单位，使得淋溶后土壤pH增加0.27，0.09，0.17个单位。在pH=4.5和pH=5.8模拟酸雨后 ...
廖月清 +6 more
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Shuitu Baochi Xuebao, 2021 原位钝化是镉污染稻田土壤修复的主要方法之一，钝化剂的选择对修复效果十分关键。通过3个田间试验和示范区对比调查研究了施用石灰石及主要调理剂对稻田土壤镉的钝化效应，并提出有效的技术措施。结果表明，施用足量石灰石（≥3.75 t/hm2，试验Ⅰ）、钙镁磷肥（3.75 t/hm2，试验III）和生物质炭（9.00 t/hm2，试验II；7.50 t/hm2，试验III）、石灰（3.00 t/hm2，试验III）碱性调理剂均能显著提高土壤pH，降低土壤Cd提取率 ...
王剑, 杨婷婷, 朱有为, 倪吾钟
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Rare Metals, EarlyView.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
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Rare Metals, EarlyView.ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
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Zhejiang Daxue xuebao. Lixue ban, 2012 自制了一种进样毛细管可替换的常规同心雾化器，由雾化器器体、石英毛细管（外径0. 37 mm，内径0.25 mm)和雾化器适配器在环氧树脂胶的黏合作用下组装而成.将雾化器浸入沸水中，环氧树脂胶即软化，从而实现雾化器各组件的拆卸分离及破损或堵塞的进样毛细管的更换.自制同心雾化器在雾化气流量为0.
CAOLiang-hui(曹良惠) +4 more
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Petroleum Exploration and Development, 2010 Based on the scientific concept of Mud Cake to Agglomerated Cake (MTA), the integrated solidification and cementation of materials at the cement-formation interface was studied by mechanical evaluation, microstructure analysis (XRD, TG and ESEM), and ...
Gu Jun, Qin Wenzheng
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