35 results about "Thiacalixarene" patented technology

The invention discloses a harmless treatment method for contaminated soil eluate and relates to contaminated soil treatment methods. The method comprises the following processes: adjusting the pH value of sulfonated thiacalixarene eluting eluate of heavy metal contaminated soil to be 12 by using sodium hydroxide; adding sodium sulfide according to the mole concentration ratio of sodium sulfide / sulfonated thiacalixarene of 2: 1, stirring for 10 minutes by using a stirrer, mixing uniformly to completely dissolve sodium sulfide, then standing for 24 hours; putting the eluate in a centrifuge tube, and carrying out centrifugation for 10 minutes at the rate of 5,000 r / min, so as to obtain a supernatant; adding concentrated nitric acid into the supernatant, and adjusting the pH value to be 10, thereby recycling the eluate as an eluent for repairing the heavy metal contaminated soil. The method has the advantages that the sulfonated thiacalixarene eluting eluate of the heavy metal contaminated soil can be subjected to harmless treatment, the recycling of the sulfonated thiacalixarene eluent is realized, the soil repair cost is reduced greatly, and the operating steps are simple, convenient and easy in implementation.

The invention belongs to the field of metal sulfide nanomaterials, and particularly relates to a method for preparing carbon-loaded metal sulfide nanocomposites by electrospinning, including (1) preparing a spinning precursor solution: mixing thiacalixarene metal clusters and Spinning aids were dissolved in DMF and mixed together; (2) Preparation of nanofibers by electrospinning: Inhale the obtained spinning precursor solution into the syringe, adjust the flow rate and voltage of the syringe pump, and the distance between the spinning needle and the receiving plate , for spinning, accepting the nanofiber mat with a receiving plate; (3) pre-oxidizing the nanofiber mat: pre-oxidizing the collected nanofiber mat; (4) N 2 Carbonization under atmosphere: Carbonize the pre-oxidized nanofiber mat, and then cool down naturally to obtain the target product. The target product of the present invention has ideal electrochemical performance and good capacitance characteristics. The sheet carbon material is directly used as an electrode, which can eliminate additives or impurities such as binders and improve energy capacity and performance.

The invention discloses a coumarin-thiacalix [4] arene fluorescent reagent as well as a preparation method and an application thereof, which belong to the chemical field of organic synthesis and analysis. The invention prepares an excellent coumarin-thiacalix [4] arene derivative which can be used for respectively detecting performances of fluorine ions and zinc ions. The preparation method of the coumarin-thiacalix [4] arene fluorescent reagent comprises the following steps of: respectively connecting two coumarin fluorescent groups at the lower 1,3-site of the calixarene and connecting two methoxyl ethyl at the 2,4-site through step by step reaction by using coumarin-thiacalix [4] arene and 7-hydroxycoumarin as starting materials to prepare the coumarin-thiacalix [4] arene fluorescent reagent. Under a special medium condition, the compound can be used as a dual-functional fluorescent or colorimetric reagent for detecting micro fluorine ions and zinc ions with high sensitivity and high selectivity by utilizing fluorescence spectrum and ultraviolet absorption spectrum.

The invention discloses a supermolecule cage complex as well as a preparation method and an application thereof. The structure of the supermolecule cage complex is {[M4(mu4-H2O)(x)]4Y8}, in the formula, M is a metal element; X is thiacalixarene [4] ligand; and Y is carboxylate ligand. Implemented under relatively gentle conditions, the preparation method of the supermolecule cage complex is not only simple and rapid, but also energy-saving and efficient, raw materials and reagents are wide in source and low in price, and large-scale application is facilitated. The supermolecule cage complex disclosed by the invention is subjected to fluorescence enhancement under an acid condition, subjected to fluorescence quenching under an alkali condition, and can be applied to pH value analysis in an organic environment (not aqueous solution). The supermolecule cage complex disclosed by the invention can be applied to a spectrum sensation aryl aldehyde compound, and a provided fluorescence spectrum sensation detection method has the advantages of being high in sensitivity, rapid in response and the like.