Effective peroxymonosulfate activation by natural molybdenite for enhanced atrazine degradation: Role of sulfur vacancy, degradation pathways and mechanism

MultiElement-Doped Ni-Based Disulfide Enhances the Specific Capacity of Thermal Batteries by High Thermal Stability

“…Sulfur vacancies can generate excess charge carriers as electron donors, benefiting the improvement of conductivity of materials. 33,34 Figure 5b exhibits the decomposition temperature of NiS 2 -d at 610 °C, which is higher than that of NiS 2 (Figure 5a). When the temperature rises from 20 to 800 °C, the total mass of the samples decreases 25.5%.…”

“…The disappearance of the characteristic peaks of Ni 3+ and the shift of the characteristic peaks of Ni 2+ toward the lower binding energy proved that doping caused the formation of sulfur vacancies. Sulfur vacancies can generate excess charge carriers as electron donors, benefiting the improvement of conductivity of materials. , …”

FeMoS2 micoroparticles as an excellent catalyst for the activation of peroxymonosulfate toward organic contaminant degradation

“…Zhou et al 26 have directly used pyrite for activating PMS for the effective degradation and mineralization of diethyl phthalate. Huang et al 39 have considered that S vacancies accelerate electron transfer and reduce Mo 6+ to Mo 4+ in natural molybdenite/PMS systems. As a result, RhB removal was significantly increased relative to the control experiment.…”

Sulfur vacancies on MoS2 enhanced the activation of peroxymonosulfate through the co-existence of radical and non-radical pathways to degrade organic pollutants in wastewater

“…The activation of PMS by heterogeneous catalysts containing defect sites has attracted much attention in the past few years. [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] Among them, the oxygen vacancies are the most studied, 16,[18][19][20][21][22][23][24][25] which oen appear in various catalysts containing oxygen, including pure metal oxides such as Co 3 O 4 16 and ZnO, 19 perovskite 20 and composited compounds. [21][22][23] For example, Zhao et al 16 reported the role of oxygen vacancies in different Co 3 O 4 crystal planes for the activation of PMS by the formation of 1 O 2 ; Gao et al 20 demonstrated the correlation between oxygen-decient sites in the perovskite and the formation of 1 O 2 in activated PMS.…”

“…Sulfur vacancies used for activating PMS have attracted great attention in recent years. [26][27][28][29][30][31] This case is common in transition metal suldes. Compared to oxygen and nitrogen vacancies, sulfur vacancies possess more advantages, as it is not only that the valence-changing transition metal ions are usually good activators for PMS but also that the sulfur defect sites themselves can activate both PMS and metal ions.…”