{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,5]],"date-time":"2026-04-05T14:15:58Z","timestamp":1775398558541,"version":"3.50.1"},"reference-count":30,"publisher":"IWA Publishing","issue":"8","content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,10,1]]},"abstract":"<jats:p>A novel anion exchange resin, quaternary ammonium\u2013Chlorella vulgaris (QACV), was prepared by introducing quaternary ammonium groups onto dried Chlorella vulgaris as base material. Degrees of epoxy, amine and quaternary ammonium groups of QACV were measured. Water retention, optical microscopy, and Fourier transform infrared spectrometry were used to characterize QAVC. The adsorption behavior of QACV towards Ag(CN)2\u2212 in different conditions was studied carefully. The results showed that QAVC was efficient to adsorb Ag(CN)2\u2212 at pH 9\u201311, and adsorption equilibrium was almost reached in 30 min. Both kinetics and isotherm parameters in the adsorption process were obtained. The data indicated that the pseudo-second-order model provided a good correlation for adsorption of Ag(CN)2\u2212 on QACV and the calculated rate constant of the adsorption was 3.51 g\/(mmol min). The equilibrium data fitted well in the Langmuir isotherm and the estimated maximum adsorption capacity qm was 1.96 mmol\/g. The dimensionless separation factor RL was between 0 and 1, suggesting that the adsorption process of Ag(CN)2\u2212 using QACV was favorable. The QACV could be used successively three times without significantly affecting its adsorption efficiency. Chlorella vulgaris was a potential base material to be modified with quaternary ammonium groups to prepare an adsorbent for adsorption of Ag(CN)2\u2212.<\/jats:p>","DOI":"10.2166\/wst.2015.262","type":"journal-article","created":{"date-parts":[[2015,12,8]],"date-time":"2015-12-08T20:49:20Z","timestamp":1449607760000},"page":"1437-1445","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":2,"title":["Preparation of quaternary ammonium\u2013Chlorella vulgaris and its adsorption of Ag(CN)2\u2212"],"prefix":"10.2166","volume":"72","author":[{"given":"Ting","family":"Li","sequence":"first","affiliation":[{"name":"Department of Pharmaceutical & Biological Engineering, College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chencen","family":"Guo","sequence":"first","affiliation":[{"name":"Department of Pharmaceutical & Biological Engineering, College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tonghui","family":"Xie","sequence":"first","affiliation":[{"name":"Department of Pharmaceutical & Biological Engineering, College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chengxianyi","family":"Zhou","sequence":"first","affiliation":[{"name":"Department of Pharmaceutical & Biological Engineering, College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yongkui","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Pharmaceutical & Biological Engineering, College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"945","published-online":{"date-parts":[[2015,7,13]]},"reference":[{"issue":"28","key":"2020032802232490600_WST-EM15461R1C1","doi-asserted-by":"crossref","first-page":"3735","DOI":"10.1039\/b703954a","article-title":"Electroless deposition of metallic silver from a choline chloride-based ionic liquid: a study using acoustic impedance spectroscopy, SEM and atomic force microscopy","volume":"9","author":"Abbott","year":"2007","journal-title":"Phys. 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