Comparative study of polymer containing beta-cyclodextrin and -COOH for adsorption toward aniline, 1-naphthylamine and methylene blue.
Three different polymers P1, P2 and P3 (P1 containing both beta-CD and -COOH, P2 containing beta-CD and P3 containing -COOH) were synthesized and applied to adsorption toward aniline, 1-naphthylamine and methylene blue. The concentrations (C) before and after adsorption were determined and the adsorption capacities (q) of P1, P2 and P3 were calculated. The maximum adsorption capacities (q(max)) toward aniline: q(max) (P1)=104 micromol g(-1), q(max) (P2)=14.9 micromol g(-1) and q(max) (P3)=53.1 micromol g(-1); toward 1-naphthylamine: q(max) (P1)=184 micromol g(-1), q(max) (P2)=53.8 micromol g(-1) and q(max) (P3)=125 micromol g(-1); toward methylene blue: q(max) (P1)=200 micromol g(-1), q(max) (P2)=12.7 micromol g(-1) and q(max) (P3)=215 micromol g(-1). P1 exhibited remarkable adsorption toward all the three adsorbates. P2 was almost equal to P1 in adsorption toward methylene blue, but was less efficient than P1 in adsorption toward aniline and 1-naphthylamine. P3 also exhibited considerable adsorption toward aniline and 1-naphthylamine, but was inefficient toward methylene blue. P1 was obtained from nontoxic materials and through environment friendly procedures, so it was potentially an efficient and green adsorbent for water purification.
Zhao
Dong
D
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, China.
Zhao
Liang
L
Zhu
Cheng-Shen
CS
Shen
Xiangyu
X
Zhang
Xiaozhuan
X
Sha
Baofeng
B
D015057:1-Naphthylamine / Q000737:chemistry*; D000327:Adsorption; D000814:Aniline Compounds / Q000737:chemistry*; D007220:Industrial Waste; D008751:Methylene Blue / Q000737:chemistry*; D008956:Models, Chemical; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D017434:Protein Structure, Tertiary; D017550:Spectroscopy, Fourier Transform Infrared; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry; D018508:Water Purification; D047392:beta-Cyclodextrins / Q000008:administration & dosage*
D000814:Aniline Compounds; D007220:Industrial Waste; D011108:Polymers; D014874:Water Pollutants, Chemical; D047392:beta-Cyclodextrins; D015057:1-Naphthylamine; C031215:betadex; C023650:aniline; D008751:Methylene Blue