Developing of Chemically Treated Waste Biomass Adsorbent for Dye Removal

ABSTRACT

In this study, different chemically treated coconut coir (CC), local waste biomass, has been developed as an adsorbent for the removal of methylene blue (MB) from an aqueous solution. The acid and base treated coconut coir with higher water and moisture absorbency have been investigated for dye removal performance. The influence of different experimental factors such as initial MB concentration and condition of chemical treatments on dye removal performance of coconut coir were studied. The compositional and structural changes of the treated samples were determined using X-ray diffraction (XRD), scanning electron microscope (SEM), X-Ray photoelectron spectroscopy (XPS), Fourier Transform Infrared spectroscopy (FT-IR), and Thermogravimetric analysis (TGA). The best sample showed the removal percentage of methylene blue equal to % 92.36 and %91.62 in 0.05mM and 0.03 mM of MB, respectively. The results showed the simply modified cheap waste biomass could be used as an effective green adsorbent for dye removal in aqueous solution.

摘要

在这项研究中，不同的化学处理椰子椰壳（CC），当地的废物生物质，已经开发作为吸附剂去除亚甲基蓝（MB）从水溶液中. 研究了具有较高吸水率和吸湿率的酸碱处理椰壳对染料的去除性能. 研究了初始mb浓度、化学处理条件等实验因素对椰子壳染料去除性能的影响。用X射线衍射（XRD）、扫描电子显微镜（SEM）、X射线光电子能谱（XPS）、傅立叶变换红外光谱（FT-IR）和热重分析（TGA）测定了样品的组成和结构变化. 最佳样品表明，在0.05mm和0.03 mm的MB中，亚甲基蓝的去除百分率分别为% 92.36和% 91.62. 结果表明，简单改性的廉价废生物质可以作为一种有效的绿色染料吸附剂去除水溶液中的染料.

KEYWORDS:

• Chemical treatment
• adsorbent
• dye removal
• coconut coir
• methylene blue
• biomass

关键词:

• 化学处理
• 吸附剂
• 染料去除
• 椰子椰
• 亚甲基蓝
• 生物量

Acknowledgments

The authors gratefully acknowledge the financial support of the Endeavor Scholarships and Fellowships program (Australian Government) and GUP-2018-129 from Universiti Kebangsaan Malaysia. In addition, the authors acknowledge the facilities, and the scientific and technical assistance, of the Australian Microscopy & Microanalysis Research Facility at RMIT University. We would like to express our special thanks to Prof. Suresh K. Bhargava for his valuable support.

Conflict of interest statement

We declare that there is not conflict of interest.

Additional information

Funding

This work was supported by the Universiti Kebangsaan Malaysia [GUP-2018-129]. Endeavour Scholarships and Fellowships program (Australian Government).