Sintesis dan Karakterisasi Rayon Adsorbent Berfungsional Phosphorus Dengan Kopolimerisasi Grafting Radiasi

Telah dilakukan sintesis dan karakterisasi rayon adsorbent
berfungsional phosporus dengan kopolimerisasi grafting radiasi. Rayon
memiliki karakteristik unik seperti ramah lingkungan, kemampuan
mengembang yang besar, kesetabilan termal dan mekanik yang lebih baik,
biodegradabilitas, terbarukan dan mudah didapat. Kondisi optimum grafting
adalah dosis 10 kGy, konsentrasi 10 % monomer, waktu reaksi 4 jam dan
temperature 40°C dengan persen grafting sebesar 242%. Adsorbent memiliki
kecepatan reaksi yang tinggi, dalam 20 menit reaksi adsorbent menyerap
99% logam U, Zr dan Hf dengan konsentrasi 100 ppb dan adsorbent juga
memiliki kemampuan penyerapan yang baik pada rentang pH 1-7.
(Synthesis and characterization of Rayon based phosphoric adsorbent
by radiation induced graft polymerization has been carried out. Rayon
chooses as a trunk polymer was because of environmental friendly, their
unique characteristic like good swelling ability, thermal dan mechanic
stability, biodegradability, renewability and availability. The optimum
grafting condition was 10 kGy doses, 10% monomer, 2 h reaction time and
6(fC reaction temperature which degree of grafting was 272 %. The
absorbent was very rapidly absorbed 100 ppb of metal concentration of U,
Zr and Hf in 20 minutes reaction time. The adsorbent has good ability for
pH between 1-7 and metals ware absorbed 99,5 % of 100 ppb of metal.)