Synthesis of ZnCl₂ Activated Raising Powder of Cotton Fabrics for Acid and Basic Dye Adsorption: A Way to Reuse Cellulosic Wastes for Sustainable Production

ABSTRACT

In this study, Cl Basic Blue 9 (BB9) and Cl Acid Blue 193 (AB193) dyes were used to investigate the color removal efficiency of the carbon-based adsorbent material, ZnCl₂-RP, which was obtained by activating the raising powder. The raising powder is a waste material that is generated in considerable amounts from the textile industry. The characterization of ZnCl₂-RP was conducted by SEM-EDX, FTIR, XRD and BET analyses. As a result of this study, it was determined that ZnCl₂-RP contains 4.15% of Zn. While no significant effect of pH on the adsorption of BB9 dye was observed in the experiments, the highest dye removal efficiency was achieved at pH 3. It was seen that Langmuir Isotherm for both dyes was more suitable than the Freundlich Isotherm and the q_max values of the BB9 and AB193 dyes were 44.8 mg/g and 37.6 mg/g, respectively. Removal kinetics of both dyes were found in accordance with the pseudo-second order kinetics, and k₂ values for 50 mg/L dye concentration were 45.62 g/mg min and 5.31 g/mg min for BB9 and AB193, respectively. It is concluded that the raising powder generated in the textile industry can be used as a low-cost adsorbent for basic and acid dyes.

摘要

本研究中, 使用Cl碱性蓝9 (BB9) 和Cl酸性蓝193 (AB193) 染料研究了碳基吸附材料ZnCl2 RP的脱色效率, 该材料是通过活化提升粉获得的. 饲养粉是纺织工业产生的大量废料. 通过SEM-EDX, FTIR, XRD和BET分析对ZnCl2 RP进行了表征. 作为本研究的结果, 确定ZnCl2 RP含有4.15%的锌. 虽然在实验中没有观察到pH值对BB9染料吸附的显著影响, 但在pH值为3时, 染料去除效率最高. 结果表明, 两种染料的Langmuir等温线比Freundlich等温线更合适, BB9和AB193染料的qmax值分别为44.8mg/g和37.6mg/g. 两种染料的去除动力学符合伪二级动力学, 50mg/L染料浓度的k2值为45.62 g/mg. 最小和5.31克/毫克。BB9和AB193分别为最小值. 结果表明, 纺织工业生产的起毛粉可作为碱性和酸性染料的低成本吸附剂.

KEYWORDS:

• Acid dye
• adsorption
• basic dye
• raising powder
• textile waste

关键词:

• 酸性染料
• 吸附
• 碱性染料
• 举起火药
• 纺织废料

Acknowledgments

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. Authors have no competing interests to declare.

Disclosure statement

No potential conflict of interest was reported by the author(s).