期刊
CELLULOSE
卷 27, 期 7, 页码 3677-3691出版社
SPRINGER
DOI: 10.1007/s10570-020-02989-y
关键词
Carboxymethyl cellulose; Nano-adsorbent; Adsorption; Isotherms; Kinetics; Methyl violet
资金
- Deanship of Scientific Research at King Saud University [RG-1436-034]
In the present study, we have synthesized a nano-adsorbent of carboxymethyl cellulose; carboxymethyl cellulose/graphitic-carbon nitride/zinc oxide (CMC/g-C3N4/ZnO) by sol-gel technique. It has been utilized for the adsorptional elimination of methyl violet (MV) from aqueous solution. Maximum surface area as determined from the BET analyses is 9.214 m(2)/g. XRD analysis confirmed the semi-crystalline nature of the nano-adsorbent. Presence of desired functionalities on the surface of nano-adsorbent, CMC/g-C3N4/ZnO offered maximum interactions with the MV molecules. Isotherm studies generalized the monolayer adsorption of MV molecules with maximum adsorption capacity of 96.43 mg/g. Solution pH affected the adsorption rate to large extent and maximum occurred at pH 8. Pseudo-second order model better explained the adsorption process that determines the chemical interactions between methyl violet and CMC/g-C3N4/ZnO. [GRAPHICS] .
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