• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Feldspar/Titanium Dioxide/Chitosan as a Biophotocatalyst Hybrid for the Removal of Organic Dyes from Aquatic Phases
【24h】

Feldspar/Titanium Dioxide/Chitosan as a Biophotocatalyst Hybrid for the Removal of Organic Dyes from Aquatic Phases

机译：长石/二氧化钛/壳聚糖作为生物光催化剂杂合物，用于去除水相中的有机染料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Feldspar/titanium dioxide/chitosan hybrid, a photoactive biocompatible adsorbent for anionic dyes, was synthesized, characterized, and successfully tested. The adsorbent characterization, pH role, adsorbent dose effect, equilibrium data, kinetic plats, and thermodynamic parameters are reported. The point of zero charge for the hybrid was measured to be 8.3, and the most favorable pH range for the adsorption process was found to be below this pH value. The adsorption equilibrium study demonstrated that the Freundlich model was best fitted to the experimental data. Without UV light exposure, the prepared adsorbent adsorbed 72 mg of Acid Black 1 (AB1)/g of sorbent (86% removal) from a 100-mL solution with an initial dye concentration of 50 mg/L, whereas UV irradiation resulted in an increase in the elimination of AB1 dye (97% removal). The kinetic data was depicted well by the pseudosecond-order model. The thermodynamic parameters indicated that the reaction between the hybrid and the dye was exothermic and also spontaneous at lower temperatures. In the batch desorption process, several aqueous solutions adjusted to different pH values were tested, and the best desorption performance (90% desorption) was achieved at pH 11.
机译：合成，表征和成功测试了长石/二氧化钛/壳聚糖杂化剂，一种用于阴离子染料的光活性生物相容性吸附剂。报告了吸附剂的表征，pH作用，吸附剂剂量效应，平衡数据，动力学平台和热力学参数。测得该杂化物的零电荷点为8.3，发现吸附过程最有利的pH范围低于该pH值。吸附平衡研究表明Freundlich模型最适合实验数据。在不暴露于紫外线的情况下，制得的吸附剂从100 mL溶液中吸附了72 mg酸性黑1（AB1）/ g吸附剂（去除了86％），初始染料浓度为50 mg / L，而UV照射导致增加消除AB1染料的效率（97％去除率）。动力学数据通过伪二级模型很好地描述。热力学参数表明杂化物和染料之间的反应是放热的，并且在较低温度下也是自发的。在分批解吸过程中，测试了几种调整到不同pH值的水溶液，在pH 11时达到了最佳的解吸性能（90％的解吸）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号