PbWO4晶体的生长及其光学性能的研究

本文报道了新型闪烁晶体ＰｂＷＯ４的生长，研究了晶体的生长工艺，获得较为平坦的固液界面，消除晶体生长中产生的缺陷，测试了晶体的光学性能；探讨了ＰｂＷＯ４晶体的着色机理。     

提拉法生长直径8inch Yb∶YAG激光晶体

设计制造了适于生长直径8 inch Yb∶YAG激光晶体的生长系统和热场,采用感应加热提拉法成功生长出了直径8英寸Yb∶YAG激光晶体,晶体等径部分最小直径202 mm,等径长超过215 mm,总重63.7 kg,晶体外形完整,内部无气泡、包裹物、开裂等宏观缺陷,5 mW绿光激光照射下,未见散射颗粒.     

Construction of a Pillared-layer Framework Based on Charge Balance:CO_2 Adsorption and Luminescence

Via the strategy of charge balance,one new pillared layered metal-organic framework [Zn2(TNB)(2-nim)](H_3TNB = 4,4?,4??-nitrilotribenzoicacid,2-nim = 2-nitroimidazole)(1) was successfully synthesized based on mixed ligands,where binuclear [Zn_2(CO_2)_3]~+ cluster-based cationic layers [Zn_2(TNB)]~+ are connected by deprotonated 2-nitroimidazole.Meanwhile,CO_2 adsorption bahaviors and luminescent property of compound 1 were investigated.     

基于金纳米簇荧光“开启”的黄曲霉毒素B_1快速检测方法研究

采用牛血清蛋白作为还原剂和保护剂制备了的金纳米簇,基于Au~+-Hg~(2+)之间的相互作用所导致的金纳米簇荧光淬灭以及Hg2+与黄曲霉毒素B_1(AFB_1)之间的络合作用所导致的荧光恢复,建立了一种快速灵敏的检测AFB_1的方法。通过对该孵育条件的优化,AFB_1的检测线性范围为0.1~10 ng/m L,检测限为0.1 ng/m L。将其应用于实际大米样品中AFB_1的检测,在添加质量浓度为2,5和10 ng/m L时,其回收率在94%~118%之间,相对标准偏差在4.3%~6.3%之间。     

基于半刚性二羧酸配体的两个三维镉(II)配位聚合物

通过引入2个不同的氮杂环配体,得到了2个Cd(Ⅱ)配位聚合物[Cd(m-phda)(btbb)0.5]n(1)和[Cd(m-phda)(hbmb)0.5]n(2)(mH2phda=间苯二乙酸),并对它们的结构进行了表征。结构分析表明配合物1是一个6-连接的pcu拓扑网络,拓扑符号为412·63。配合物2是一个5-连接的sqp拓扑网络,拓扑符号为(44·66)。另外,配合物1和2表现出较好的热稳定性和不同的荧光行为。     

气态环己烷催化氧化制丁二酸酐的研究--纳米催化剂活性组分对目标反应的影响

本文以气态环己烷催化氧化制丁二酸酐为目标反应,对TiO2-Al2O3纳米复合载体上的添加组分进行了研究与探索.结果表明,实验条件下,活性最好的催化剂添加物组成为:V2O5负载量为载体质量的5.0%,P与V原子个数比为1.5,催化剂中Mo、Sb、K的质量百分含量分别为1.25%、0.6%、4.0%.     

1-氧代 -4-(取代)-2,6,7-三氧杂-1-磷杂双环[2,2,2]辛烷晶体结构研究

The crystal structure of four 1-oxo-4-(substituent)-1-phospha-2,6,7-trioxacyclo(2,2,2) octane have been determinded by dimention single-crystal X-ray analysis. All intensity data were collected with an Enraf-Nonius CAD4 diffractometer, using graphite monochromated Cu-K_α radiation and ω/2θ scan, and corrected for LP and emperical absorption factors. All crystal structures were solved by MULTAN and refined by full matrix least-squares with lsotropic thermal vibration factors for H and anisotropic for the others.Crystal data, (I) X=NH, R=H, ...     

气态环己烷催化氧化制丁二酸酐的研究一纳米催化剂活性组分对目标反应的影响

本文以气态环己烷催化氧化制丁二酸酐为目标反应，对TiO2-Al2O3纳米复合载体上的添加组分进行了研究与探索．结果表明，实验条件下，活性最好的催化剂添加物组成为：V2O5负载量为载体质量的5．0％，P与V原子个数比为1．5，催化剂中Mo、Sb、K的质量百分含量分别为1．25％、0．6％、4．0％．     

支撑液膜体系渗透系数和反萃液酸度的关系

A new permeability coefficient equation was theoretically derived. It contains both the acid concentration of feed solution and the carrier concentration as well as the acid concentration of stripping solution. The relationship of permeability coefficient and acid concentration of stripping solution was further confirmed by the experimental results of Co2+、Ni2+、 Er3+ ions transporting through the supported liquid membranes.