TY - JOUR
T1 - Preparation of polyacrylamide–montmorillonite nanocomposite and its application in Cr(III) adsorption
AU - Qiu, Jinghong
AU - Du, Xiaosheng
AU - Komarneni, Sridhar
AU - Wang, Haibo
AU - Cheng, Xu
AU - Du, Zongliang
N1 - Funding Information:
The authors acknowledge the funding support from the National Natural Science Foundation of China (No. 51773129), Support Plan of Science and Technology Department of Sichuan Province, China (2018SZ0174, 2019YFG0257), Supported by the Opening Project of Key Laboratory of Leather Chemistry and Engineering?(Sichuan University)?Ministry of Education (20826041C4159), International Science and Technology Cooperation Program of Chengdu (2017-GH02-00068-HZ), Postdoctoral research foundation of Sichuan University (2018SCU12049).
PY - 2020/9/20
Y1 - 2020/9/20
N2 - The polyacrylamide–montmorillonite “water in water” (PAM-MMT W/W) emulsion was prepared by dispersion polymerization method in the presence of organo-montmorillonite (OMMT). Based on the analysis of the polymerization process, the structure of material was investigated using thermogravimetry, Fourier transform infrared spectroscopy, X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy experiments. Here, the dispersion was determined to be a blend of PAM W/W emulsion and PAM network interspersed by MMT particles, this unique structure of the material was considered to provide better adsorption ability compared to PAM without MMT. Therefore, a PAM-MMT adsorbent was made from the PAM-MMT W/W emulsion, and its adsorption capacity toward Cr(III), one of the heavy metal pollutants from the tannery waste was investigated. The PAM-MMT nanocomposite was demonstrated to have good Cr(III) removal performance, the maximum adsorption capacity of the nanocomposite was found to be 59.74 mg/g at a pH of 5.5 and temperature of 70°C. Results show that pseudo-second-order kinetic model and Langmuir isotherm were applicable for Cr(III) adsorption.
AB - The polyacrylamide–montmorillonite “water in water” (PAM-MMT W/W) emulsion was prepared by dispersion polymerization method in the presence of organo-montmorillonite (OMMT). Based on the analysis of the polymerization process, the structure of material was investigated using thermogravimetry, Fourier transform infrared spectroscopy, X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy experiments. Here, the dispersion was determined to be a blend of PAM W/W emulsion and PAM network interspersed by MMT particles, this unique structure of the material was considered to provide better adsorption ability compared to PAM without MMT. Therefore, a PAM-MMT adsorbent was made from the PAM-MMT W/W emulsion, and its adsorption capacity toward Cr(III), one of the heavy metal pollutants from the tannery waste was investigated. The PAM-MMT nanocomposite was demonstrated to have good Cr(III) removal performance, the maximum adsorption capacity of the nanocomposite was found to be 59.74 mg/g at a pH of 5.5 and temperature of 70°C. Results show that pseudo-second-order kinetic model and Langmuir isotherm were applicable for Cr(III) adsorption.
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U2 - 10.1002/app.49065
DO - 10.1002/app.49065
M3 - Article
AN - SCOPUS:85079384254
VL - 137
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
IS - 36
M1 - 49065
ER -