Adsorption behavior of heptyl xanthate on surface of ZnO and Cu(II) activated ZnO using continuous online in situ ATR-FTIR technology

SHEN，Qi1; ZHANG，Yun hui1; FAN，Ying ju1; XU，Zheng he2; SUN，Zhong Xi1

2022-07-01

10.1016/S1003-6326(22)65953-3

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA   Impact Factor & Quartile

1003-6326

2210-3384

A continuous online in situ attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopic technique was used to investigate the adsorption and desorption kinetics of heptyl xanthate (KHX) on the surface of ZnO and Cu(II) activated ZnO. The results showed that Cu(II) facilitated the xanthate adsorption process on the surface, and led to the formation of cuprous xanthate (CuX), dixanthogen (X2) and xanthate aggregates. The adsorption of xanthate on the surface of ZnO and Cu(II) activated ZnO was found to both follow the pseudo-first-order kinetic model. When the NaOH solution was used as a desorption agent, the adsorbed xanthate can largely be removed due to the competition between OH- and HX-. However, for Cu(II) activated ZnO, the peak intensities at 1197 and 1082 cm-1 had no obvious weakening, and the absorption intensities at 1261 and 1026 cm-1 increased in the first 5 min, indicating an ion-exchange reaction between OH- and surface zinc bonded xanthate HX- and the reorganization of adsorbed xanthate.

ZnO Cu(II) activation continuous online in situ ATR-FTIR heptyl xanthate adsorption kinetics

SCI ; EI

English

Others

National Natural Science Foundation of China["51274104","50874052"] ; National Basic Research Program of China[2011CB933700]

Metallurgy & Metallurgical Engineering

Metallurgy & Metallurgical Engineering

WOS:000848487100011

ELSEVIER

20223412612216

Adsorption ; Copper compounds ; Desorption ; Fourier transform infrared spectroscopy ; II-VI semiconductors ; Infrared reflection ; Ion exchange ; Ions ; Kinetics ; Sodium hydroxide ; Supersaturation ; Surface reactions

Fluid Flow, General:631.1 ; Semiconducting Materials:712.1 ; Imaging Techniques:746 ; Chemistry:801 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2 ; Classical Physics; Quantum Theory; Relativity:931

MATERIALS SCIENCE

Web of Science

1.School of Chemistry and Chemical Engineering,University of Jinan,Jinan,250022,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

SHEN，Qi,ZHANG，Yun hui,FAN，Ying ju,et al. Adsorption behavior of heptyl xanthate on surface of ZnO and Cu(II) activated ZnO using continuous online in situ ATR-FTIR technology[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2022,32(7):2370-2378.

SHEN，Qi,ZHANG，Yun hui,FAN，Ying ju,XU，Zheng he,&SUN，Zhong Xi.(2022).Adsorption behavior of heptyl xanthate on surface of ZnO and Cu(II) activated ZnO using continuous online in situ ATR-FTIR technology.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,32(7),2370-2378.

SHEN，Qi,et al."Adsorption behavior of heptyl xanthate on surface of ZnO and Cu(II) activated ZnO using continuous online in situ ATR-FTIR technology".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 32.7(2022):2370-2378.