Co (II) desorption from silica gel and mercapto-silica hybrid

Mujiyanti, Dwi Rasy; Irawati, Utami; Akhir, Nur Mauliddiyah

dc.contributor.author	Mujiyanti, Dwi Rasy
dc.contributor.author	Irawati, Utami
dc.contributor.author	Akhir, Nur Mauliddiyah
dc.date.accessioned	2021-08-12T00:48:03Z
dc.date.available	2021-08-12T00:48:03Z
dc.date.issued	2020-12
dc.identifier.other	doi:10.1088/1757-899X/980/1/011002
dc.identifier.uri	https://repo-dosen.ulm.ac.id//handle/123456789/20828
dc.description.abstract	This paper aims to study Co (II) desorption from silica gel (SG) and mercaptosilica hybrids (MSH) by many desorbing agents. SG was prepared from sodium silicate from rice husk ash, whereas MSH was SG modified by organic compounds 3- (trimethoxysilyl) -1propanthiol. The characterization of adsorbents covered by an X-ray diffractometer and an FTIR spectrophotometer. Optimization of contact time for adsorption of Co (II) on HMS and the procedure of desorption agents (H2O, HCl, Na2EDTA.2H2O) at different contact times and concentrations via batch methods. The results showed that the optimum contact time for Co (II) adsorption on MSH was 120 minutes. The most appropriate desorbing agents for SG and MSH were HCl and Na2EDTA.2H2O. The optimum contact times for Co (II) desorption on SG and MSH were 90 and 120 minutes, respectively. The optimum concentration of HCl for desorbing Co (II) on SG was 0.025 M. While, the optimum concentration of Na2EDTA.2H2O for Co (II) desorption on MSH was 0.1 M	en_US
dc.publisher	IOP Publishing	en_US
dc.subject	Co (II)	en_US
dc.subject	desorption	en_US
dc.subject	silica gel	en_US
dc.subject	mercapto-silica hybrid	en_US
dc.title	Co (II) desorption from silica gel and mercapto-silica hybrid	en_US
dc.type	Book chapter	en_US