A magnetically recyclable chitosan composite adsorbent functionalized with EDTA for simultaneous capture of anionic dye and heavy metals in complex wastewater

Surface functionalized SiO2 nanoparticles with cationic polymers via the combination of mussel inspired chemistry and surface initiated atom transfer radical polymerization: Characterization and enhanced removal of organic dye.

자연에서 얻어지는 고무질로서는 여러 가지 종류의 것이 많으나 한천, 알긴산염, 카라기난(Carrageenan), 퍼셀라란(furcellaran)등은 해조로부터 추출되며 Pectin, arabic gum, karaya gum, tragacanth gum, ghatti gum, guargum, 메뚜기콩고무(Locust been gum), 사이리엄고무(psyllium seed gum)등은 식물로부터 추출된다. 특히 이외에도 미생물에서 분비되는 고무질인 다당(多糖)으로는 dextran, curdlan, pullulau, 잔산고무(Xanthan gum)등도 최근에 알려진 고무질이다. 여기에서는 미생물이 생산하는 고무질인 다당(多糖)인 Xanthan gum이 새로히 식품첨가물로 지정되었기에 Xanthan gum의 발견내역, 성질, 생산과 응용면을 소개한다.

Xanthan gum의 생산과 응용

Recent Advances in Chain Conformation and Bioactivities of Triple-Helix Polysaccharides.

Blends and composites of exopolysaccharides; properties and applications: A review

Mesoporous chitosan–SiO2 nanoparticles (NPs) were successfully synthesized. The prepared nanoparticles were characterized using TEM, FTIR, XRD, TGA, EDX, and (CHN) elemental analysis. From TEM micrograph, chitosan–SiO2 NPs were sphere-like, pretty uniformly distributed with coarse surface. The average size of chitosan–SiO2 NPs was determined as 211 nm with DLS, which was confirmed by TEM. The mesoporous structure of chitosan–SiO2 NPs was characterized with N2 adsorption/desorption measurements. BET surface area was 621 m2 g–1 and the total pore volume was 0.71 m3 g–1. CO2 adsorption was evaluated by a volumetric method. Chitosan–SiO2 NPs showed a maximum CO2 adsorption capacity of 4.39 mmol g–1 at 25 °C and a high selective separation capacity for CO2 over N2 (SCO2/N2 = 15.46). The influence of amines on carbon dioxide adsorption was discussed. Stable CO2 adsorption/desorption was confirmed after six cycles of experiments. Therefore, chitosan–SiO2 NPs exhibit great potential for CO2 capture.

Mesoporous Chitosan–SiO2 Nanoparticles: Synthesis, Characterization, and CO2 Adsorption Capacity

Optimization of culture medium and modeling of curdlan production from Paenibacillus polymyxa by RSM and ANN.

Protein adsorption using novel carboxymethyl-curdlan microspheres

Green synthesis of RGO/Ag: As evidence for the production of uniform mono-dispersed nanospheres using microfluidization

Melanoidins are dark brown recalcitrant pollutants found in the molasses-based distillery effluents. In this study, graphene oxide nanosheets (GONs) were successfully synthesized to remove melanoid...

Sayyid Mahdi Rafigh

Papers

Mesoporous Chitosan–SiO2 Nanoparticles: Synthesis, Characterization, and CO2 Adsorption Capacity

Optimization of culture medium and modeling of curdlan production from Paenibacillus polymyxa by RSM and ANN.

Protein adsorption using novel carboxymethyl-curdlan microspheres

Green synthesis of RGO/Ag: As evidence for the production of uniform mono-dispersed nanospheres using microfluidization

Melanoidin removal from molasses wastewater using graphene oxide nanosheets