TY  - JOUR
VL  - 250
AV  - none
Y1  - 2018///
KW  - Adsorption; Adsorption isotherms; C (programming language); Crystalline materials; Kinetics; Network function virtualization; Organometallics; Scanning electron microscopy; Solutions; Spectrometers; X ray diffraction
KW  -  Adsorption kinetics; Arsenite; Field emission scanning electron microscopes; Metal organic framework; Pseudo-second-order kinetic models; Scanning electronic microscopes; X-ray energy dispersive spectrometers; Zeolitic imidazolate frameworks
KW  -  Thermogravimetric analysis
A1  - Nasir, A.M.
A1  - Md Nordin, N.A.H.
A1  - Goh, P.S.
A1  - Ismail, A.F.
SP  - 269
PB  - Elsevier B.V.
EP  - 277
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85037544448&doi=10.1016%2fj.molliq.2017.12.005&partnerID=40&md5=9fa1319e76eb774ab87802f9328fe8bb
N2  - Two-dimensional leaf-shaped zeolitic imidazolate framework (ZIF-L) was synthesized in aqueous solution by using zinc salt and 2-methylimidazole (2-MeIM) at room temperature. The synthesized ZIF-L shows unique two-dimensional (2-D) leaf-like crystal morphology using field emission scanning electron microscope. The crystalline structure and total surface area of ZIF-L was indicated by X-ray diffraction, thermogravimetric analysis and Brunauerâ??Emmettâ??Teller analysis. The experimental data of adsorption of arsenite by ZIF-L were well fitted by two-site- pseudo-second-order kinetic model. The adsorption isotherms were well described by Freundlich isotherm model. The synthesized ZIF-L possess maximum uptake of arsenite was 43.74 mg/g at pH 10.0 at the room temperature (25.0 ± 1 °C) which is relatively higher than other class of metal-organic framework. Zeta potential, fourier transform infrared, and scanning electronic microscope combined with X-ray energy dispersive spectrometer concluded that adsorption mechanism of arsenite on ZIF-L was occurred based on electrostatic interaction between arsenite ions and surface charge of ZIF-L, also substitution of hydroxyl group by arsenite to form inner-sphere complex. Since the development of ZIF-L through aqueous media was rapid, simple and eliminated the heating process, ZIF-L can be regarded as a promising adsorbent and low-cost adsorbent for the removal of arsenite. © 2017 Elsevier B.V.
ID  - scholars10929
N1  - cited By 89
TI  - Application of two-dimensional leaf-shaped zeolitic imidazolate framework (2D ZIF-L) as arsenite adsorbent: Kinetic, isotherm and mechanism
SN  - 01677322
JF  - Journal of Molecular Liquids
ER  -