磁性蒙脱石对废水中磷的吸附

通过蒙脱石与磁性Fe3O4纳米粒子复合,对其层间距进行磁性柱撑,采用扫描电子显微镜、傅里叶变换红外光谱(FITR)对磁性蒙脱石结构进行表征,将制得的磁性蒙脱石作为吸附剂,研究了对水溶液中磷的去除效果及其影响因素。结果表明,磁性蒙脱石投入量1 g/L,初始浓度2 mol/L,p H 3左右时,废水中磷的去除率最高。     

一道有机题的三种解法

题目 100g精制棉花(设含纤维素100％)与浓硝酸和浓硫酸的混酸反应后可得到154g干燥的硝酸纤维．求此硝化纤维的含氮百分率。     

铜与浓硝酸、稀硝酸反应装置的改进

在铜与浓硝酸、稀硝酸反应的实验中,教材实验采用试管装置进行实验,存在无法观察无色气体和所生成污染气体的不足。经一体化的实验设计优化后,实验效果更加明显,不仅实现了实验产物的连续利用,基本消除了环境污染,还有助于深化学生对于硝酸和氮元素知识的理解,搭建宏观辨识与微观探析的学科架构模型。     

春兰秋菊 各自芬芳

这是“广东松业杯”港澳棋王过宫炮布局对抗赛我执先手对澳门棋王象棋特级国际大师李锦欢之局，现自评如下供广大棋友欣赏。     

巨尾桉叶片水提液对小麦幼苗生长的影响

巨尾桉是华南地区重要的人工林树种,研究表明,其吉片水抽提物对小麦生长有显著抑制作用,对种子萌发亦有显著影响。     

弱碱弱酸型热再生两性树脂的静态吸附性能研究

使用丙烯酸在阴离子树脂中聚合制备弱碱弱酸两性树脂,对两性树脂的静态吸附及解吸附性能研究,在70℃的反应条件下合成的弱碱一弱酸型两性树脂,其对Nacl的静态解吸率可达到89.43%.     

关于柞树提取液及其应用的两项发明

1.一种柞树提取液及其应用（专利申请号：200710156136.1） 本发明提供了一种柞树提取液燃烧柞树树枝,排出的气体冷凝回收,得粗提液;粗提液于封闭容器中静置发酵3～4个月,分层,弃去上下层液体,取中层液体,得原液;原液经蒸馏,     

甲磺酸吉米沙星的吸附伏安特性及其应用

在特定缓冲底液（pH6．40）中,甲磺酸吉米沙星（Gemifloxacin mesylate,简称FACTIVE）在汞电极上可以发生还原反应,测得了还原反应的峰电位,该还原峰为典型的吸附峰;测定表明,吸附于滴汞电极上的粒子为甲磺酸吉米沙星的中性分子,通过实验测得了待测物在滴汞电极汞滴上的饱和吸附量,测得了FACTIVE分子在汞滴上吸附后所占电极面积,实验证明待测物中性分子在汞滴上的吸附符合Langmuir吸附等温式;实验表征了吸附系数,25℃时的吸附自由能,电极反应过程中转移电子数,不可逆体系动力学参量,汞滴表面反应速率常数;并通过实验给出了吸附溶出伏安法测定FACTIVE的最佳条件,方法的检出限满足常规分析的要求．     

“双高”建设背景下高职思政教育“提质赋能”的路径探析

要保证“双高”建设实现新飞跃,高职思政教育具有重要的作用。因此,要加快探索高职思政教育“提质赋能”的路径。“三个坚持”是原动力,为高职思政教育指明方向;“三个打造”是着力点,为高职思政教育开创新貌;“三个推动”是保障力,为高职思政教育提供保障。坚持这些发展路径,不仅为高职思政教育“提质赋能”奠定基础,也为“双高”建设的新发展提供条件。     

Photocatalytic Degradation of Diethyl Phthalate with Surfactant Addition

This paper studies the adsorption of diethyl phthalate (DEP,an environmental hormone) on the surface of nanoscale TiO_2, effects of pH value of solutions, initial concentrations of DEP and additive surfactant on photocatalytic degradation and dynamics of DEP. Under ultra violet illumination, the interaction between DEP and surfactants including DBS (sodium dodecylbenzenesulfon-ate), CTAB (cetyltrimethylammonium bromide), and OP-10 (nonylphenol polyoxyethylene ether) was exploited from the perspective of degradation speed calculated by the data of high pressure liquid chromatography (HPLC) and UV-Vis spectra, respectively. Photocatalytic degradation of DEP followed pseudo first-order reaction kinetics. DEP as substrate degraded fast when its initial concentration was 130 mg/L. TiO_2 had certain adsorption ability of DEP. TiO_2 could adsorb the most DEP at the approximately neutral pH of 6.91. Degradation of DEP was not affected obviously by additives OP-10 and DBS. Degradation rate of DEP was not enhanced greatly in the presence of surfactants, but degradation of DBS was sped up. Degradation rate of DEP was depressed in the presence of additive CTAB. The more CTAB was added, the less DEP was degraded. Degradation rate of CTAB became slow with the increase of initial CTAB concentration. The possible adsorption models among TiO_2, DEP and surfactants were given.