@article{MOHAMAD ARIF_YUSAINI_2022, title={Multi-Stimuli-Responsive Organogel Based on Bisthiourea Compounds for The Removal of Selected Organic Dyes}, volume={12}, url={https://publisher.unimas.my/ojs/index.php/BJRST/article/view/4261}, DOI={10.33736/bjrst.4261.2022}, abstractNote={<p>The self-assembly of a series of bisthiourea containing amino acid side chains has been studied in a large range of organic solvents. Self-assembly is driven mainly by hydrogen bonding groups of thiourea and amino acids moieties. Of all the synthesized compounds, only bisthiourea with alanine side chains, <strong>3.5</strong> formed thermoreversible gel in 50:3 dichloromethane:water mixture at minimum gel concentration of 0.5%. SEM micrographs of the gel showed the formation of entangled cross-linked fibres. The addition of anions such as Cl¯, F¯ and AcO¯ disrupted the gel network of <strong>3.5</strong> thus inducing the gel-sol transition. To investigate the ability of the bisthiourea to form metallogel, metal ions such as Co<sup>2+</sup>, Cu<sup>2+</sup>, Ni<sup>2+</sup> and Pb<sup>2+</sup> were introduced, however, none of them induce the formation of metallogel. In particular, the gels show good performance in the absorption of bromocresol green and Eriochrome black-T at 75% and 61% efficiency, respectively within 24 hours. The good dye absorption properties of gel <strong>3.5</strong> render the potential of bisthiourea gels as new dye absorption materials, which show significant benefit for water pollution treatment.&nbsp;&nbsp;&nbsp;&nbsp;</p&gt;}, number={1}, journal={Borneo Journal of Resource Science and Technology}, author={MOHAMAD ARIF, MAYA ASYIKIN and YUSAINI, FARIS DANISH}, year={2022}, month={Jun.}, pages={106-124} }