Related Experiment Video
Updated: Dec 28, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
ZnIn2S4 grown on nitrogen-doped hollow carbon spheres: An advanced catalyst for Cr(VI) reduction
Cheng Cheng1, Dongyun Chen1, Najun Li1
1College of Chemistry, Chemical Engineering and Materials Science,Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China.
Abstract:
Up to now, the environmental damage by heavy metal is getting worse and worse as the development of industry. Meanwhile, hexavalent chromium (Cr(VI)) in wastewater get special attention as its acute toxicity and potential carcinogencity. To solve this problem, we introduce a simple and efficient way to prepare a photocatalyst, ZnIn2S4 grown on nitrogen-doped hollow carbon spheres (ZIS-NHC), which is an effective catalyst that can used to reduce aqueous Cr(VI). This photocatalyst prepared by a three-step strategy. Benefiting from the excellent electrical conductivity and high specific surface area of the NHC which is superior to other carbon material and the favorable band gap of ZnIn2S4 makes ZIS-NHC has superior light-driven photocatalytic efficiency. The ZIS-NHC exhibits an excellent rate of degradation of aqueous Cr(VI) at a concentration of 50 mg/L within 50 min. Moreover, the ZIS-NHC retained excellent stability after five rounds of cycling experiments which was also discussed.
More Related Videos
11:58Synthesis and Functionalization of Nitrogen-doped Carbon Nanotube Cups with Gold Nanoparticles as Cork Stoppers
Published on: May 13, 2013
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Related Concept Videos
Nitriles to Amines: LiAlH4 Reduction
As shown below, the mechanism involves three steps. Firstly, the hydride ion acting as a nucleophile attacks the nitrile carbon to form an anion. In the second step, a second equivalent of the hydride ion attacks the anion to...
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Preparation of Nitriles
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
Reduction of Alkenes: Catalytic Hydrogenation
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
2° Amines to N-Nitrosamines: Reaction with NaNO2