The radiation chemical yield for the reduction of dichromate, Cr(VI) → Cr3+, in an acidic aqueous perchloric acid solution of potassium dichromate, may be increased from 0.04 to >0.2 μ mol J-1 by adding acetic acid. The increased yield, G[-(Cr2O7)2-] is about the same in N2- ...
The surface selective adsorption of hexavalent chromium [Cr2O72 (Cr(VI))] and the desorption of trivalent chromium [Cr3+ (Cr(III))] were investigated during the process of photocatalytic reduction. Zeta potential results presented that the increased positive charges due to more Ti3+ defects on...
so increasing the electrostatic attraction of CrO42− and Cr2O72− anions (Cr(VI) exists mainly as CrO42− in the aqueous solution with pH value above 7, whereas mostly as Cr2O72− in the aqueous solution with pH value below 7 [75]). Moreover, the proportion of Cr2O72−...
Balance the following redox equation using half-reactions. Assume the reaction occurs in an aqueous solution. Cr2O72- + NO arrow Cr3+ + NO3- Write a balanced equation to represent the reaction. Include states of matter in the answe...
Cr2O72- +9 I- + 14 H+ 2 Cr3+ + 3 I3- 3- + 7 H2O Oxidation-Reduction Reactions in Electrochemical Cells • It is possible to separate the half-reactions of an oxidation-eduction reaction in an electrochemical cell. • Consider the following reaction: ...
12 August 2022 © The Author(s) 2022 Abstract The electrocatalytic nitrogen reduction reaction (NRR) has been one of the most intriguing catalytic reactions in recent years, providing an energy-saving and environmentally friendly alternative to the conventional Haber–Bosch process for ammonia produ...
13 October 2016 Haipeng Chu1, Xinjuan Liu1, Baibai Liu1, Guang Zhu2, Wenyan Lei1, Huigang Du1, Junying Liu3, Jianwei Li4, Can Li1 & Changqing Sun1 To make full use of the solar energy, exploring broad spectrum active photocatalysts has become one of the core...
There are 12 machines of 500 tons, 24 machines of 300 tons which can meet the needs of key customers and the capacity of every machine is 7.05 million pieces per month.2.The nitrogen freezing burr processor we used which is adopting advanced technology in china. The equipment...
[117] found that Cr3+, Mn4+ and Fe3+ levels were near or overlapped with the VB of TiO2, while V3+, Mn2+ and Fe2+ levels were near or overlapped with the CB of TiO2. In some cases, doping leads to the formation of mid-gap bands, and the reduction of the effective band gap ...
ofAu NPs by encapsulation. The polyamino atmosphere in the surface of the PDA facilitates the strong binding or coordination of incoming Au ions.In order to ascertain the physicochemical properties of the material, we utilized an extensive array of advanced techniques in this process, such as ...