ELECTROLYTIC EFFECT ON GROWTH OF GRAPHENE QUANTUM DOTS VIA ELECTROCHEMICAL PROCESS

Quantum dots (QDs) are materials grown in confined dimension also known as 0D materials. QDs can be synthesized in many shapes and forms through various methods making the materials extremely versatile and can be fine-tuned for appropriate applications. Among the potentially scalable methods, Electrochemical process is considered as one of the top-down approaches with the highest potential for scalability and easy-to-process methodology while electrolyte and pH level can play various important roles on the final product. In this work, we grew and studied the effect of electrolytic solution in the growth of graphene quantum dots (GQDs) in colloidal forms using cheap graphite as precursor in KCl and NaOH as electrolytes in various concentrations. It can be inferred from our results that when KCl and NaOH were used in combination with citric acid, the optoelectrical properties and hydrodynamic properties of the resulting growth can be fine-tuned to match the required applications. [Formula: see text] electronics excitation was identified with small tunability of 487–500[Formula: see text]nm wavelength while the hydrodynamic size varied from 80–140[Formula: see text]nm with resulting pH range from 3.0–9.5 adjustable to appropriate applications, while the TEM results showed physical particle size of 1.7–3.7[Formula: see text]nm.

Study on Treatment of Waste Emulsion with Pulse-Electrolysis

The waste emulsion after recycling,Which was acted as cooling and lubrication in the mechanicalProcessing,can be discharged when it reaches the goal of envirmental protection.The emulsion contains a large number of surfactants and other additives,so this Emulsifying Wastewater is quite stable.However, There is the higher cost in the existing approach of processing.It was reported that The pulse electrolytic process can be used to carry on the treatment the waste emulsion in the text.So the influence on the waste emulsion chemical oxygen demand(COD) elimination rate effect by the factorsof pulse electrolysis were investigated ,such as the electric current size, width pole plate spacing and pH value. The results shown that the shown that: the electrolytic effect of the acidic and neutral media is better than alkaline conditions, electrode spacing can improve the electrolytic effect, and appropriate duty cycle, pulse frequency can play a pulse, not only enhance the electrolytic effect, but also eliminate the passivation effect; it will be effective to take suitable current density.

On the distribution of chlorides in nerve cells and fibres

The question of the composition of nerve fibres, and especially of the axon itself, is one which must be solved before a rational explanation of the properties of nerve tissue can be given. The solution of the problem in its ultimate details is possible only when we have at our command reagents and methods which will greatly exceed in sensitiveness those which are accessible to us at present, for such as have been used hitherto comprehend only those of ordinary chemical analysis, and they have not thrown any light on the subject, while those of micro-chemistry, which have been employed up to the present, involve staining with dyes such as one employs in histological technique and treatment with nitrate of silver and osmic acid. The last-named reagent is of service in demonstrating the fat of the medullary sheath, and the nitrate of silver has been employed to show the nodes of Ranvier and the striation known as Frommann’s lines, a result which, as will be shown, depends on a micro-chemical reaction, but the dyes hitherto used have revealed little except structure. There are, indeed, the Weigert hæmatoxylin and the Golgi reactions, but the constituents of the sheath and axon responsible for both are unknown. Though these and other histological methods much has been ascertained regarding the structure of nerve fibres and cells, but so far little has been determined which will serve to explain such properties as irritability and conductivity and the nature of the nerve impulse itself. The result of investigations on the electrical properties of nerve fibres, however, show that the relationship between the electrolytic action of a current on the nerve and its exciting efficiency is a very intimate, practically an indissoluble, one, and in view of this one asks on what constituent the electrolytic effect is exerted.