High-efficiency treatment of electroless nickel plating effluent using core-shell MnFe2O4-C@Al2O3 combined with ozonation: Performance and mechanism was written by Guan, Zhijie;Guo, Yanping;Mo, Zhihua;Chen, Shaojin;Liang, Jialin;Liao, Xiaojian;Zhang, Yumin;Huang, Zhenhua;Song, Weifeng;Xu, Yanbin;Ou, Xuelian;Sun, Shuiyu. And the article was included in Journal of Hazardous Materials in 2022.COA of Formula: C9H18O5S The following contents are mentioned in the article:
Heterogeneous catalytic ozonation (HCO) has been widely applied for the treatment of wastewater. In order to maintain the structural stability and surface catalytic activity of heterogeneous catalysts during the HCO treatment of electroless nickel plating effluent (ENPE), a MnFe2O4-C@Al2O3 catalyst with a core-shell structure was synthesized. MnFe2O4-C@Al2O3 was characterized and applied in the removal of total nickel (TNi) and organic contaminants from actual ENPE, using a coupled system of HCO combined with a magnetic dithiocarbamate chelating resin (MnFe2O4-C@Al2O3/O3-MDCR). Results show that embedding Al2O3 with C and MnFe2O4 significantly increased the TNi removal efficiency (99.3%), enhanced the O3-utilization efficiency and improved the generation of reactive oxygen species (ROS). The reaction rate (k = 0.7641 min-1) and O3-utilization efficiency established for TNi removal (ΔTNi/ΔO3 =0.221) by the MnFe2O4-C@Al2O3/O3-MDCR system, were 220% and 140% higher than the Al2O3/O3-MDCR system, resp. Catalytic mechanism anal. demonstrated that surface hydroxyl groups, oxygen vacancy, metals, the carbon surface and its functional groups, can all potentially serve as catalytic active sites, with 1O2 and ·OH considered to the predominant ROS. Overall, these findings verify that the synthesized MnFe2O4-C@Al2O3 catalyst possesses excellent catalytic capabilities and outstanding structural stability, making it suitable for practical application in the treatment of wastewater effluent. This study involved multiple reactions and reactants, such as (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1COA of Formula: C9H18O5S).
(2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.COA of Formula: C9H18O5S
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts