<span>In this study, it has been investigated that the incorporation of </span><span>poly(ethylene glycol)</span><span> and 4-styrenesulfonic acid sodium salt into acrylamide hydrogel dur...<span>In this study, it has been investigated that the incorporation of </span><span>poly(ethylene glycol)</span><span> and 4-styrenesulfonic acid sodium salt into acrylamide hydrogel during free radical solution polymerization synthesis for novel highly swollen adsorbents and for the effective removal of some potential pollutants from aqueous solutions such as cationic dyes. Poly(ethylene glycol)diacrylate was used as a multifunctional crosslinker. The main purpose of this study was to combine both monomers and a polymer in a new polymeric system. Dye sorption properties of the polymeric hydrogels were investigated by using cationic dye such as Janus Green B. Swelling and sorption studies were carried out at 25</span><span>°C</span><span style="font-family:;" "=""><span>. For structural characterization, FT-IR analysis and SEM studies were applied. To determine the sorption behaviors of Janus Green B, </span><span>some sorption parameters such as dye removal capacity, adsorption percentage</span></span><span>,</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">and partition coefficient of the polymeric hydrogels were investigated.</span>展开更多
This paper presents experimental study on six carbonaceous industrial waste samples that were obtained from a local industry in Saskatchewan, Canada. Hereafter, the samples are coded as ES1, ES2, ES3, PU, RPS and SS1 ...This paper presents experimental study on six carbonaceous industrial waste samples that were obtained from a local industry in Saskatchewan, Canada. Hereafter, the samples are coded as ES1, ES2, ES3, PU, RPS and SS1 and were characterized using IR and 13C solid state NMR spectroscopy, nitrogen porosimetry, TGA, metal leaching analysis using ICP and point-of-zero-charge. Adsorption studies were conducted using two types of adsorptive dye probes (p-nitrophenol, PNP;and methylene blue;MB) at pH 4.60 and pH 7.00.展开更多
文摘以开心果果壳作为生物吸附剂,研究其去除废水中偶氮染料的能力。通过批次实验研究了吸附时间和染料质量浓度对开心果果壳生物吸附剂吸附能力的影响。结果表明,吸附过程在10 min内即可完成,吸附率随染料质量浓度的增加而降低。采用两参数和三参数吸附模型描述吸附动力学和吸附等温线实验数据。结果表明,准二级模型和Sips模型能较为准确地描述吸附过程。开心果果壳生物吸附剂的最大吸附容量为109.52 mg/g。标准吉布斯自由能为-5.18 k J/mol,表明吸附过程是一个物理的自发过程。
文摘<span>In this study, it has been investigated that the incorporation of </span><span>poly(ethylene glycol)</span><span> and 4-styrenesulfonic acid sodium salt into acrylamide hydrogel during free radical solution polymerization synthesis for novel highly swollen adsorbents and for the effective removal of some potential pollutants from aqueous solutions such as cationic dyes. Poly(ethylene glycol)diacrylate was used as a multifunctional crosslinker. The main purpose of this study was to combine both monomers and a polymer in a new polymeric system. Dye sorption properties of the polymeric hydrogels were investigated by using cationic dye such as Janus Green B. Swelling and sorption studies were carried out at 25</span><span>°C</span><span style="font-family:;" "=""><span>. For structural characterization, FT-IR analysis and SEM studies were applied. To determine the sorption behaviors of Janus Green B, </span><span>some sorption parameters such as dye removal capacity, adsorption percentage</span></span><span>,</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">and partition coefficient of the polymeric hydrogels were investigated.</span>
文摘This paper presents experimental study on six carbonaceous industrial waste samples that were obtained from a local industry in Saskatchewan, Canada. Hereafter, the samples are coded as ES1, ES2, ES3, PU, RPS and SS1 and were characterized using IR and 13C solid state NMR spectroscopy, nitrogen porosimetry, TGA, metal leaching analysis using ICP and point-of-zero-charge. Adsorption studies were conducted using two types of adsorptive dye probes (p-nitrophenol, PNP;and methylene blue;MB) at pH 4.60 and pH 7.00.
