研究目的
To compare the similarities and differences of the adsorption of MPD from aqueous solution onto different kinds of resins.
研究成果
The acidic resins (SAMR and TAMR) showed better adsorption capacity for MPD compared to heterocyclic resins (IDLMR and PRLMR). The adsorption processes were spontaneous and exothermic, with physisorption dominating and weak chemisorption. The Freundlich model was the most suitable for the adsorption data, and the pseudo-second-order model best described the kinetic data. The best adsorption effect was observed at pH = 6.24.
研究不足
The study focuses on the adsorption of MPD onto chemically modified resins, and the results may not be directly applicable to other types of pollutants or adsorbents. The effect of other environmental factors on adsorption was not extensively studied.
1：Experimental Design and Method Selection:
Four kinds of hypercrosslinked resins were synthesized as adsorbents to remove MPD from aqueous solution. The Brunauer–Emmett–Teller specific surface area and pore size distribution were compared, and the infrared spectra of the resins were analyzed.
2：Sample Selection and Data Sources:
MPD, sulfamic acid, trimellitic anhydride, 2-imidazolidinone, 2-pyrrolidone, ethanol, and methanol were used as reagents.
3：List of Experimental Equipment and Materials:
Instruments included a fully automatic specific surface area and aperture analyzer, an elemental analyzer, a Fourier transform infrared spectrometer, a large-capacity thermostatic oscillator, and a high-performance liquid chromatograph.
4：Experimental Procedures and Operational Workflow:
Adsorption experiments were conducted at different temperatures and pH levels, and the effect of coexisting inorganic salts was investigated.
5：Data Analysis Methods:
The adsorption data were fitted by classic isotherm models and kinetic models, and thermodynamic parameters were calculated.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
