Catalytic reduction of 4-nitrophenol and photocatalytic degradation of organic pollutants in water by copper oxide nanosheets

An improved method for high photocatalytic performance of ZnAl2O4 spinel derived from layered double hydroxide precursor

“…However, the oxygen on the nitro group of p-nitrophenolate is substituted by activated hydrogen during the reaction to form the amine group of pAP via electron transfer on the catalyst surface. Therefore, the resulted pAP is desorbed from the catalyst (7) (8) surface and the final reaction produces other metaborate anions.…”

“…Semiconductor photocatalysis is a prospective method to remove credential organic pollutants in wastewater. Up to now, numerous active-photocatalysts such as CuO [8], Fe 2 O 3 [9], SnO 2 [10], TiO 2 [11], WO 3 [12], and ZnO [13] are highly potential applications in various industries. For an effective candidate and an efficient treatment, the development of photocatalysts with high pore volume and surface area is essential.…”

Fabrication of CS/GA/RGO/Pd composite hydrogels for highly efficient catalytic reduction of organic pollutants

“…In the reaction system, the BH 4 À ion attaches to the surface of the catalyst and then transfers electrons to the surface of the catalyst. 58 At the same time as electron transfer, hydrogen atoms are generated. The hydrogen atoms attack 4-NP and reduce it, and the 4-NP is reduced to p-aminophenol (4-AP).…”

A new La‐Doped CuBi2O4 Catalysts for the Reduction of Nitroaromatic Compounds and Toxic Organic Dyes

“…Therefore, the treatment of these hazardous pollutants will be of vital practical significance to environmental protection [5] . Up to now, diverse methods have been adopted for the removal of toxic pollutants from wastewaters such as adsorption, [6] ozonation, [7] bioremediation, [8] electrochemical degradation [9] and photocatalytic degradation etc [10–12] . Compared with these techniques, catalytic reduction with NaBH 4 as reducing agent in aqueous medium has been found to be superior to other methods due to its low cost, environmentally friendly, and ease operation.…”