Evaluation of Antibacterial Effect by Using a Fibrous Grafted Material Loaded Ag Ligand

Abstract

To obtain the safety of drinking water, an antibacterial material was prepared by loading silver (Ag) onto fibrous iminodiacetate (IDA) adsorbent, which was synthesized by radiation-induced graft polymerization of glycidyl methacrylate and subsequent chemical modification of the produced epoxy group to an IDA group (IDA-Ag). A total amount of loaded Ag on the IDA-Ag fabric was 0.4 mmol-Ag/g-fabric. From an observation of the IDA-Ag fabric cross section by a scanning electron microscope energy dispersive X-ray spectrometer, Ag was distributed to IDA layer uniformly. As a result of evaluating antibacterial effects by the column mode water flow test with stream water, the effective Ag concentration was monitored 0.05 ppm at irrespective flow rate which was functioned to the antibacterial performance. The antibacterial effects for general bacteria were indicated until BV (BV: steam water volume/IDA-Ag fabric volume) 6000, and for colitis germ legions were completely disinfected until BV 6000.

Development of a Simplified Radiation-Induced Emulsion Graft Polymerization Method and Its Application to the Fabrication of a Heavy Metal Adsorbent

“…The IDA group density and conversion were 1.6 mmol/g and 74%, respectively. In previous studies, the IDA group density of the adsorbent was mainly between 0.7 and 3.2 mmol/g, depending on the grafting degree and conversion [30,41,42,43]. The SREG method at low absorbed doses was expected to be useful to fabricate heavy metal adsorbent.…”

Synthesis of Fibrous Metal Adsorbent with a Piperazinyl-Dithiocarbamate Group by Radiation-Induced Grafting and Its Performance

“…The radiation-induced emulsion grafting procedure was almost the same as in the previous studies. ,,, The PE/PP-NF was cut into 3 × 3 cm square pieces. These were placed in polyethylene bags.…”