Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
Ultrason Sonochem. 2014 Jul;21(4):1441-50. doi: 10.1016/j.ultsonch.2014.01.018. Epub 2014 Jan 23.
The present study focused on the simultaneous ultrasound-assisted removal of sunset yellow and erythrosine dyes from aqueous solutions using ZnS:Ni nanoparticles loaded on activated carbon (ZnS:Ni-NP-AC) as an adsorbent. ZnS:Ni nanoparticles were synthesized and characterized using different techniques such as FESEM, XRD and TEM. The effects of various parameters such as sonication time, pH, initial dye concentrations and adsorbent dose on the percentage of dye removal were investigated. Parameters were optimized by central composite design (CCD) combined with response surface methodology (RSM) and desirability function (DF). A good agreement between experimental and predicted values was observed. The ultrasound-assisted adsorbent (0.04 g) was capable of high percentage removal (98.7% and 99.6%) of sunset yellow and erythrosine in short time (3.8 min).
本研究采用负载在活性炭上的 ZnS:Ni 纳米粒子（ZnS:Ni-NP-AC）作为吸附剂，通过超声辅助同时从水溶液中去除日落黄和胭脂红染料。采用 FESEM、XRD 和 TEM 等不同技术合成和表征了 ZnS:Ni 纳米粒子。考察了超声时间、pH 值、初始染料浓度和吸附剂剂量等各种参数对染料去除率的影响。通过中心复合设计（CCD）与响应面法（RSM）和适宜性函数（DF）相结合对参数进行了优化。实验值与预测值吻合较好。超声辅助吸附剂（0.04 g）在短时间（3.8 分钟）内可实现对日落黄和胭脂红的高去除率（98.7%和 99.6%）。
