Sulfite activation by oxidized pyrite for dye degradation assisted by oxygen

Abstract

Because pyrite is easily oxidized, thus the catalytic performance of pyrite-peroxymonosulfate (PMS) or peroxydisulfate (PDS) activation system will be significantly affected due to the low activation of PMS or PDS...

Photocatalytic degradation of rhodamine-B by visible light assisted peroxymonosulfate activation using the Z-scheme MIL-100(Fe)/Bi2S3 composite: a combined experimental and theoretical approach

“…7,8 In this regard, development of visible light responsive photocatalytic composites can be an attractive alternative to eliminate the high energy demand. Different types of semiconductor materials and composites, like composite metal oxides, 9–13 metal carbides, 14,15 metal sulfides, 8,16 graphene derivatives, 17 graphitic carbon nitride, 18–21 metal organic frameworks (MOFs), 22–24 MXene, 25 etc. , have been employed as highly effective photocatalysts in the removal of various contaminants in water.…”

“…7,8 In this regard, development of visible light responsive photocatalytic composites can be an attractive alternative to eliminate the high energy demand. Different types of semiconductor materials and composites, like composite metal oxides, [9][10][11][12][13] metal carbides, 14,15 metal sulfides, 8,16 graphene derivatives, 17 graphitic carbon nitride, [18][19][20][21] metal organic frameworks (MOFs), [22][23][24] MXene, 25 etc., have been employed as highly effective photocatalysts in the removal of various contaminants in water. To increase the harvesting of visible light irradiation, lowering the excited e À /h + recombination, as well as introducing more reactive sites for photocatalytic reactions, formation of heterojunctions between different visible light responsive semiconductors is a viable option.…”