铒钇异核脯氨酸配合物:[ErY(Pro)4(H2O)8](ClO4)6的合成及晶体结构

为了研究稀土离子与氨基酸 (Pro)的相互作用 ,在pH≈ 3.5水溶液中合成了高氯酸八水·(脯氨酸 )合铱 (Ⅲ )铒 (Ⅲ ) ,获得了单晶 ,并经四圆衍射仪测定了结构 .配合物组成为C2 0 H52 Cl6ErN4 O4 0 Y ,属三斜晶系 ,P1空间群 .晶胞参数a =0 .986 0 (2 )°nm ,b =1.30 2 0 (5 )nm ,c=1.36 32 (5 )nm ,α =10 9.32 (3)° ,β=110 .19(2 )° ,γ =10 0 .96 (2 )°,V =1.45 6 (1)nm3,Z =1,Dc=1.6 6 3g/cm3,μ =2 .797mm-1,F(0 0 0 ) =72 9.配合物分子中 ,Y3 ‘、Er3 在相应位置上出现的几率各为 5 0 % ,相邻两个金属离子被两个以桥式双齿配位的Pro分子连接 ,每个金属离子除了与 4个羧基O配位外 ,还与 4个水分子的氧配位 ,配位数为 8,形成变形的四方反棱柱 .图 4表 3参 10     

内生真菌感染对黑麦草若干抗旱生理特征的影响

对周期性干旱胁迫下内生真菌感染（EI）和非感染（EF）的黑麦草植株的几项生理指标进行了比较。结果表明，干旱胁迫导致EI和EF叶片相对水分含量下降，细胞膜透性增加，游离脯氨酸累积，叶绿素，类胡萝 纱和淀粉含量下降，可溶性糖含量增加，与EF植株相比，干旱胁迫下EI植株可溶性糖含量较高，膜透性及脯氨酸含量均较低，从生理生化角度说明内生真菌可提高其宿主植物的抗旱性。图3参39     

Effects of manganese waste on growth,nodulation, proline levels,and enzymatic activities in Vigna unguiculata (L.) Walp.

Phytoremediation studies were carried out on the waste of Kalakhunta manganese (Mn) mines located in Banswara, Rajasthan, which is rich in Mn and iron. Various treatments, including the addition of soil, farmyard manure, sawdust, and biogas slurry, as well as differing quantities of NPK and capping with 10% soil were undertaken to ameliorate the effects of inhospitable waste. The effect of unamended and variously treated amended waste was studied on the growth, nodulation, yield, leaf area, and enzymatic activity of the test plants to ascertain the degree of toxicosis that plants may encounter during the process of phytostabilization. The levels of proline and activities of polyphenol oxidase, peroxidase, acid phosphatase, and nitrate reductase were affected by the treatments applied. Data showed that addition of 10% soil + 3 NPK is the most suitable treatment for the purpose of revegetation of Mn-mine waste, as the plants displayed the highest growth under this treatment condition.     

脯氨酸掺杂g-C3N4纳米片的制备及其对RhB的降解

通过简单的水热及煅烧方法制备了脯氨酸掺杂的g-C₃N₄纳米片,借助FTIR、XRD、SEM、BET、XPS、UV-vis DRS、PL、电化学工作站等手段对所制备的光催化剂进行结构、形貌、组成及光电性能表征分析.结果表明,脯氨酸的加入可以自主剥离前驱体,制成纳米片状的g-C₃N₄,增加催化剂的比表面积.此外脯氨酸的引入可以调节催化剂的能带结构,增加可见光吸收,提高光生载流子分离率.在模拟可见光照射下,考察其对罗丹明B (RhB)的光催化降解性能获得了最优掺杂条件.1%脯氨酸掺杂(PCN-1%)的催化剂经过60min可见光照射即可降解99%以上的污染物.降解速率得到显著提升,PCN-1%对RhB的降解速度(0.0271min^-1)达到传统体相氮化碳(BCN)降解速率(0.0027min^-1)的10.04倍,显著提高了g-C₃N₄的光催化能力.