Water pollution due to gold mining activity is increasingly worrying. One way to selectively mitigate it is through the use of complexing agents such as calixarenes, which selectively functionalized with soft donor at...Water pollution due to gold mining activity is increasingly worrying. One way to selectively mitigate it is through the use of complexing agents such as calixarenes, which selectively functionalized with soft donor atoms such as <span style="font-family:Verdana;">sulphur</span><span style="font-family:Verdana;">, can selectively remove this pollutant, for the selective complexation of mercury from contaminated water, which </span><span style="font-family:Verdana;">w</span><span style="font-family:Verdana;">as</span><span style="font-family:""><span style="font-family:Verdana;"> compared by conductimetry and liquid-liquid extraction studies with results that show that the derivative with the highest </span><span style="font-family:Verdana;">sulphur</span><span style="font-family:Verdana;"> atoms is its structure</span></span><span style="font-family:Verdana;"> which</span><span style="font-family:""><span style="font-family:Verdana;"> presents greater selectivity compared to the derivative with the lowest number of </span><span style="font-family:Verdana;">sulphur</span><span style="font-family:Verdana;"> atoms, in both </span><span style="font-family:Verdana;">cases</span></span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> they present very stable complexes.</span>展开更多
The behavior of a donor in the GaAs–GaAlAs quantum well wire represented by the Morse potential is examined within the framework of the effective-mass approximation. The donor binding energies are numerically calcula...The behavior of a donor in the GaAs–GaAlAs quantum well wire represented by the Morse potential is examined within the framework of the effective-mass approximation. The donor binding energies are numerically calculated for with and without the electric and magnetic fields in order to show their influence on the binding energies. Moreover, how the donor binding energies change for the constant potential parameters(De, re, and a) as well as with the different values of the electric and magnetic field strengths is determined. It is found that the donor binding energy is highly dependent on the external electric and magnetic fields as well as parameters of the Morse potential.展开更多
有机室温磷光(room temperature phosphorescence,RTP)材料凭借制备简单、类型丰富、毒性低等特点,以及在显示、传感、生物成像等方面广阔的应用前景而备受关注.一般的有机RTP材料,其磷光寿命<10 ms,而具有长寿命(τ>100 ms)有机...有机室温磷光(room temperature phosphorescence,RTP)材料凭借制备简单、类型丰富、毒性低等特点,以及在显示、传感、生物成像等方面广阔的应用前景而备受关注.一般的有机RTP材料,其磷光寿命<10 ms,而具有长寿命(τ>100 ms)有机RTP材料其磷光衰减过程裸眼可见,因而具有更广阔的应用前景.本文总结了近年来兼具高效率和长寿命有机RTP材料的分子设计策略,包括引入重原子、形成主-客体材料、构筑H聚集、形成氢键和设计成DonorAcceptor(D-A)结构.展开更多
文摘Water pollution due to gold mining activity is increasingly worrying. One way to selectively mitigate it is through the use of complexing agents such as calixarenes, which selectively functionalized with soft donor atoms such as <span style="font-family:Verdana;">sulphur</span><span style="font-family:Verdana;">, can selectively remove this pollutant, for the selective complexation of mercury from contaminated water, which </span><span style="font-family:Verdana;">w</span><span style="font-family:Verdana;">as</span><span style="font-family:""><span style="font-family:Verdana;"> compared by conductimetry and liquid-liquid extraction studies with results that show that the derivative with the highest </span><span style="font-family:Verdana;">sulphur</span><span style="font-family:Verdana;"> atoms is its structure</span></span><span style="font-family:Verdana;"> which</span><span style="font-family:""><span style="font-family:Verdana;"> presents greater selectivity compared to the derivative with the lowest number of </span><span style="font-family:Verdana;">sulphur</span><span style="font-family:Verdana;"> atoms, in both </span><span style="font-family:Verdana;">cases</span></span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> they present very stable complexes.</span>
基金supported by the Turkish Science Research Council(TBTAK)the Financial Supports from Akdeniz and Nigde Universities
文摘The behavior of a donor in the GaAs–GaAlAs quantum well wire represented by the Morse potential is examined within the framework of the effective-mass approximation. The donor binding energies are numerically calculated for with and without the electric and magnetic fields in order to show their influence on the binding energies. Moreover, how the donor binding energies change for the constant potential parameters(De, re, and a) as well as with the different values of the electric and magnetic field strengths is determined. It is found that the donor binding energy is highly dependent on the external electric and magnetic fields as well as parameters of the Morse potential.
文摘有机室温磷光(room temperature phosphorescence,RTP)材料凭借制备简单、类型丰富、毒性低等特点,以及在显示、传感、生物成像等方面广阔的应用前景而备受关注.一般的有机RTP材料,其磷光寿命<10 ms,而具有长寿命(τ>100 ms)有机RTP材料其磷光衰减过程裸眼可见,因而具有更广阔的应用前景.本文总结了近年来兼具高效率和长寿命有机RTP材料的分子设计策略,包括引入重原子、形成主-客体材料、构筑H聚集、形成氢键和设计成DonorAcceptor(D-A)结构.
